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Sample records for collegiate field hockey

  1. Physical profiles of elite male field hockey and soccer players ...

    African Journals Online (AJOL)

    Physical profiles of elite male field hockey and soccer players - application to sport-specific tests. ... South African Journal of Sports Medicine ... of field tests for hockey and soccer for the purposes of talent identification and training prescription.

  2. Reliability of Triaxial Accelerometry for Measuring Load in Men's Collegiate Ice-Hockey.

    Science.gov (United States)

    Van Iterson, Erik H; Fitzgerald, John S; Dietz, Calvin C; Snyder, Eric M; Peterson, Ben J

    2016-08-18

    Wearable microsensor technology incorporating triaxial accelerometry is used to quantify an index of mechanical stress associated with sport-specific movements termed PlayerLoad™. The test-retest reliability of PlayerLoad™ in the environmental-setting of ice-hockey is unknown. The primary aim of this study was to quantify the test-retest reliability of PlayerLoad™ in ice-hockey players during performance of tasks simulating game-conditions. Division I collegiate male ice-hockey players (N=8) wore Catapult Optimeye S5 monitors during repeat performance of 9 ice-hockey tasks simulating game-conditions. Ordered ice-hockey tasks during repeated bouts included: acceleration (forward/backward), 60% top-speed, top-speed (forward/backward), repeated shift circuit, ice-coasting, slap-shot, and bench-sitting. Coefficient of variation (CV), intraclass correlation coefficient (ICC), and minimum differences (MD) were used to assess PlayerLoad™ reliability. Test-retest CVs and ICCs of PlayerLoad™ were: Forward (8.6, 0.54) or backward (13.8, 0.78) acceleration, 60% top-speed (2.2, 0.96), forward (7.5, 0.79) or backwards (2.8, 0.96) top-speed, repeated-shift test (26.6, 0.95), slap-shot (3.9, 0.68), coasting (3.7, 0.98), and bench-sitting (4.1, 0.98), respectively. Raw differences between bouts were not significant for ice-hockey tasks (P>0.05). For each task, between bout raw differences were lower versus MD: Forward (0.06 vs. 0.35) or backward (0.07 vs. 0.36) acceleration, 60% top-speed (0.00 vs. 0.06), forward (0.03 vs. 0.20) or backwards (0.02 vs. 0.09) top-speed, repeated-shift test (0.18 vs. 0.64), slap-shot (0.02 vs. 0.10), coasting (0.00 vs. 0.10), and bench-sitting (0.01 vs. 0.11), respectively. These data suggest PlayerLoad™ demonstrates moderate-to-large test-retest reliability in the environmental-setting of male Division I collegiate ice-hockey. Without previously testing reliability, these data are important as PlayerLoad™ is routinely quantified in

  3. Evaluation of the reliability of two field hockey specific sprint and dribble tests in young field hockey players

    NARCIS (Netherlands)

    Lemmink, K.A.; Elferink-Gemser, M.T.; Visscher, C.

    2004-01-01

    OBJECTIVES: To determine the reliability of two field hockey specific tests: the shuttle sprint and dribble test (ShuttleSDT) and the slalom sprint and dribble test (SlalomSDT). METHODS: The shuttle sprint and dribble performances of 22 young male and 12 young female field hockey players were

  4. Evaluation of the reliability of two field hockey specific sprint and dribble tests in young field hockey players

    NARCIS (Netherlands)

    Lemmink, K.A.; Elferink-Gemser, M.T.; Visscher, C.

    2004-01-01

    OBJECTIVES: To determine the reliability of two field hockey specific tests: the shuttle sprint and dribble test (ShuttleSDT) and the slalom sprint and dribble test (SlalomSDT). METHODS: The shuttle sprint and dribble performances of 22 young male and 12 young female field hockey players were assess

  5. The role of visual perception measures used in sports vision programmes in predicting actual game performance in Division I collegiate hockey players.

    Science.gov (United States)

    Poltavski, Dmitri; Biberdorf, David

    2015-01-01

    Abstract In the growing field of sports vision little is still known about unique attributes of visual processing in ice hockey and what role visual processing plays in the overall athlete's performance. In the present study we evaluated whether visual, perceptual and cognitive/motor variables collected using the Nike SPARQ Sensory Training Station have significant relevance to the real game statistics of 38 Division I collegiate male and female hockey players. The results demonstrated that 69% of variance in the goals made by forwards in 2011-2013 could be predicted by their faster reaction time to a visual stimulus, better visual memory, better visual discrimination and a faster ability to shift focus between near and far objects. Approximately 33% of variance in game points was significantly related to better discrimination among competing visual stimuli. In addition, reaction time to a visual stimulus as well as stereoptic quickness significantly accounted for 24% of variance in the mean duration of the player's penalty time. This is one of the first studies to show that some of the visual skills that state-of-the-art generalised sports vision programmes are purported to target may indeed be important for hockey players' actual performance on the ice.

  6. Heart Rate and Energy Expenditure in Division I Field Hockey Players During Competitive Play.

    Science.gov (United States)

    Sell, Katie M; Ledesma, Allison B

    2016-08-01

    Sell, KM and Ledesma, AB. Heart rate and energy expenditure in Division I field hockey players during competitive play. J Strength Cond Res 30(8): 2122-2128, 2016-The purpose of this study was to quantify energy expenditure and heart rate data for Division I female field hockey players during competitive play. Ten female Division I collegiate field hockey athletes (19.8 ± 1.6 years; 166.4 ± 6.1 cm; 58.2 ± 5.3 kg) completed the Yo-Yo intermittent endurance test to determine maximal heart rate. One week later, all subjects wore a heart rate monitor during a series of 3 matches in an off-season competition. Average heart rate (AvHR), average percentage of maximal heart rate (AvHR%), peak exercise heart rate (PExHR), and percentage of maximal heart rate (PExHR%), time spent in each of the predetermined heart rate zones, and caloric expenditure per minute of exercise (kcalM) were determined for all players. Differences between positions (backs, midfielders, and forwards) were assessed. No significant differences in AvHR, AvHR%, PExHR, PExHR%, and %TM were observed between playing positions. The AvHR% and PExHR% for each position fell into zones 4 (77-93% HRmax) and 5 (>93% HRmax), respectively, and significantly more time was spent in zone 4 compared with zones 1, 2, 3, and 5 across all players (p ≤ 0.05). The kcalM reflected very heavy intensity exercise. The results of this study will contribute toward understanding the sport-specific physiological demands of women's field hockey and has specific implications for the duration and schedule of training regimens.

  7. Myelin Water Fraction Is Transiently Reduced after a Single Mild Traumatic Brain Injury--A Prospective Cohort Study in Collegiate Hockey Players.

    Directory of Open Access Journals (Sweden)

    Alexander D Wright

    Full Text Available Impact-related mild traumatic brain injuries (mTBI are a major public health concern, and remain as one of the most poorly understood injuries in the field of neuroscience. Currently, the diagnosis and management of such injuries are based largely on patient-reported symptoms. An improved understanding of the underlying pathophysiology of mTBI is urgently needed in order to develop better diagnostic and management protocols. Specifically, dynamic post-injury changes to the myelin sheath in the human brain have not been examined, despite 'compromised white matter integrity' often being described as a consequence of mTBI. In this preliminary cohort study, myelin water imaging was used to prospectively evaluate changes in myelin water fraction, derived from the T2 decay signal, in two varsity hockey teams (45 players over one season of athletic competition. 11 players sustained a concussion during competition, and were scanned at 72 hours, 2 weeks, and 2 months post-injury. Results demonstrated a reduction in myelin water fraction at 2 weeks post-injury in several brain areas relative to preseason scans, including the splenium of the corpus callosum, right posterior thalamic radiation, left superior corona radiata, left superior longitudinal fasciculus, and left posterior limb of the internal capsule. Myelin water fraction recovered to pre-season values by 2 months post-injury. These results may indicate transient myelin disruption following a single mTBI, with subsequent remyelination of affected neurons. Myelin disruption was not apparent in the athletes who did not experience a concussion, despite exposure to repetitive subconcussive trauma over a season of collegiate hockey. These findings may help to explain many of the metabolic and neurological deficits observed clinically following mTBI.

  8. Dentofacial trauma and players' attitude towards mouthguard use in field hockey: a systematic review and meta-analysis.

    NARCIS (Netherlands)

    Vucic, S.; Drost, R.W.; Ongkosuwito, E.M.; Wolvius, E.B.

    2016-01-01

    BACKGROUND: Dentofacial injuries are a risk while playing field hockey. Wearing mouthguards is recommended. OBJECTIVE: To synthesise findings on the prevalence and characteristics of dentofacial injuries sustained by field hockey players. We also investigated the prevalence of regular mouthguard use

  9. Patterns of orodental injury and mouthguard use in Dutch field hockey

    NARCIS (Netherlands)

    Vucic, S.; Drost, R.W.; van Wijk, A.J.; Wesselink, P.R.; Wolvius, E.B.

    2016-01-01

    Background Orodental injuries in field hockey are a growing cause of concern that requires attention. Objective The objective of this cross-sectional study was to investigate the patterns of orodental injury, and the use of mouthguards in Dutch national field hockey. Materials and methods In the

  10. Dupuytren disease is highly prevalent in male field hockey players aged over 60 years.

    Science.gov (United States)

    Broekstra, Dieuwke C; van den Heuvel, Edwin R; Lanting, Rosanne; Harder, Tom; Smits, Inge; Werker, Paul M N

    2016-09-22

    Dupuytren disease is a fibroproliferative hand condition. The role of exposure to vibration as a risk factor has been studied with contradictory results. Since field hockey is expected to be a strong source of hand-arm vibration, we hypothesised that long-term exposure to field hockey is associated with Dupuytren disease. In this cross-sectional cohort study, the hands of 169 male field hockey players (IQR: 65-71 years) and 156 male controls (IQR: 59-71 years) were examined for signs of Dupuytren disease. Details about their age, lifestyle factors, medical history, employment history and leisure activities were gathered. Prior to the analyses, the groups were balanced in risk factors using propensity score matching. The association between field hockey and Dupuytren disease was determined using a subject-specific generalised linear mixed model with a binomial distribution and logit link function (matched pairs analysis). Dupuytren disease was observed in 51.7% of the field hockey players, and in 13.8% of the controls. After propensity score matching, field hockey playing as dichotomous variable, was associated with Dupuytren disease (OR=9.42, 95% CI 3.01 to 29.53). A linear dose-response effect of field hockey (hours/week x years) within the field hockey players could not be demonstrated (OR=1.03, 95% CI 0.68 to 1.56). We found that field hockey playing has a strong association with the presence of Dupuytren disease. Clinicians in sports medicine should be alert to this less common diagnosis in this sport. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/

  11. Role of energy systems in two intermittent field tests in women field hockey players

    NARCIS (Netherlands)

    Lemmink, Koen A. P. M.; Visscher, Susan H.

    2006-01-01

    The energetics of 2 field tests that reflect physical performance in intermittent sports (i.e., the Interval Shuttle Sprint Test [ISST] and the Interval Shuttle Run Test [ISRT]) were examined in 21 women field hockey players. The ISST required the players to perform 10 shuttle sprints starting every

  12. Efficacy of a Four-Week Uphill Sprint Training Intervention in Field Hockey Players.

    Science.gov (United States)

    Jakeman, John R; McMullan, Judith; Babraj, John A

    2016-10-01

    Jakeman, JR, McMullan, J, and Babraj, JA. Efficacy of a four-week uphill sprint training intervention in field hockey players. J Strength Cond Res 30(10): 2761-2766, 2016-Current evidence increasingly suggests that very short, supramaximal bouts of exercise can have significant health and performance benefits. Most research conducted in the area, however, uses laboratory-based protocols, which can lack ecological validity. The purpose of this study was to examine the effects of a high-intensity sprint training program on hockey-related performance measures. Fourteen semiprofessional hockey players either completed a 4-week high-intensity training (HIT) intervention, consisting of a total of 6 sessions of HIT, which progressively increased in volume (n = 7), or followed their normal training program (Con; n = 7). Straight-line sprint speed, with and without a hockey stick and ball, and slalom sprint speed, with and without a hockey stick and ball, were used as performance indicators. Maximal sprint speed over 22.9 m was also assessed. On completion of the 4-week intervention, straight-line sprint speed improved significantly in the HIT group (∼3%), with no changes in performance for the Con group. Slalom sprint speed, both with and without a hockey ball, was not significantly different after the training program in either group. Maximal sprint speed improved significantly (12.1%) in the HIT group, but there was no significant performance change in the Con group. The findings of this study indicate that a short period of HIT can significantly improve hockey-related performance measures and could be beneficial to athletes and coaches in field settings.

  13. Many roads lead to Rome--developmental paths to Olympic gold in men's field hockey.

    Science.gov (United States)

    Güllich, Arne

    2014-01-01

    This study examined the developmental sporting activities of the Olympic Champions 2012 in men's field hockey. The volume of organised practice/training and non-organised sporting leisure play in both field hockey and other sports through childhood, adolescence and adulthood was examined and compared between the Olympic Champions and (1) current national class players and (2) international medallists of one decade earlier. Analyses revealed that the Olympic Champions performed moderate volumes of organised field hockey practice/training throughout their career and attained their first international senior medal after accumulating 4393 ± 1389 practice/training hours, but they engaged in extensive other sporting activities during childhood and youth. It took them 18 ± 3 years of involvement to attain an international medal and they had engaged for 22 ± 3 years when winning the Olympic gold medal. The Olympic Champions did not differ from national class players in the amount of hockey-specific practice/training, but in greater amounts of organised involvement in other sports and later specialisation. They differed from the international medallists of one decade earlier in less increase of organised hockey-specific practice/training during adulthood and a longer period of involvement until attaining their first international medal. The sporting activities were characterised by sizeable interindividual variation within each subsample. The findings are reflected against the deliberate practice and Developmental Model of Sports Participation (DMSP) frameworks and are discussed with reference to the concept of long-term sustainability.

  14. Dupuytren disease is highly prevalent in male field hockey players aged over 60 years

    NARCIS (Netherlands)

    Broekstra, Dieuwke C; van den Heuvel, Edwin R; Lanting, Rosanne; Harder, Tom; Smits, Inge; Werker, Paul M N

    2016-01-01

    BACKGROUND/AIM: Dupuytren disease is a fibroproliferative hand condition. The role of exposure to vibration as a risk factor has been studied with contradictory results. Since field hockey is expected to be a strong source of hand-arm vibration, we hypothesised that long-term exposure to field hocke

  15. Today's talented youth field hockey players, the stars of tomorrow? : a study

    NARCIS (Netherlands)

    Elferink-Gemser, Marije Titia

    2005-01-01

    The aim of the thesis was addressed by conducting research within a group of all talented field hockey players, measuring multidimensional performance characteristics in a sports-specific way, and following talented players across time by adopting a longitudinal study design. With caution because

  16. Multidimensional performance characteristics and standard of performance in talented youth field hockey players : A longitudinal study

    NARCIS (Netherlands)

    Elferink-Gemser, Marije T.; Visscher, Chris; Lemmink, Koen A. P. M.; Mulder, Theo

    2007-01-01

    To identify performance characteristics that could help predict future elite field hockey players, we measured the anthropometric, physiological, technical, tactical, and psychological characteristics of 30 elite and 35 sub-elite youth players at the end of three consecutive seasons. The mean age of

  17. Development of the interval endurance capacity in elite and sub-elite youth field hockey players

    NARCIS (Netherlands)

    Elferink-Gemser, MT; Visscher, C; van Duijn, MAJ; Lemmink, KAPM

    2006-01-01

    Objectives: To gain more insight into the mechanisms that underlie the development of interval endurance capacity in talented youth field hockey players in the 12-19 age band. Methods: A total of 377 measurements were taken over three years. A longitudinal model for interval endurance capacity was d

  18. Today's talented youth field hockey players, the stars of tomorrow? : a study

    NARCIS (Netherlands)

    Elferink-Gemser, Marije Titia

    2005-01-01

    The aim of the thesis was addressed by conducting research within a group of all talented field hockey players, measuring multidimensional performance characteristics in a sports-specific way, and following talented players across time by adopting a longitudinal study design. With caution because th

  19. Caffeinated Energy Drinks Improve High-Speed Running in Elite Field Hockey Players.

    Science.gov (United States)

    Del Coso, Juan; Portillo, Javier; Salinero, Juan José; Lara, Beatriz; Abian-Vicen, Javier; Areces, Francisco

    2016-02-01

    The aim of this investigation was to determine the efficacy of a caffeine-containing energy drink to improve physical performance of elite field hockey players during a game. On 2 days separated by a week, 13 elite field hockey players (age and body mass = 23.2 ± 3.9 years and 76.1 ± 6.1 kg) ingested 3 mg of caffeine per kg of body mass in the form of an energy drink or the same drink without caffeine (placebo drink). After 60 min for caffeine absorption, participants played a simulated field hockey game (2 × 25 min). Individual running pace and instantaneous speed during the game were assessed using GPS devices. The total number of accelerations and decelerations was determined by accelerometry. Compared with the placebo drink, the caffeinated energy drink did not modify the total distance covered during the game (6,035 ± 451 m and 6,055 ± 499 m, respectively; p = .87), average heart rate (155 ± 13 beats per min and 158 ± 18 beats per min, respectively; p = .46), or the number of accelerations and decelerations (697 ± 285 and 618 ± 221, respectively; p = .15). However, the caffeinated energy drink reduced the distance covered at moderate-intensity running (793 ± 135 and 712 ± 116, respectively; p = .03) and increased the distance covered at high-intensity running (303 ± 67 m and 358 ± 117 m; p = .05) and sprinting (85 ± 41 m and 117 ± 55 m, respectively; p = .02). Elite field hockey players can benefit from ingesting caffeinated energy drinks because they increase the running distance covered at high-intensity running and sprinting. Increased running distance at high speed might represent a meaningful advantage for field hockey performance.

  20. PENGEMBANGAN MODEL ALAT STICK HOCKEY UNTUK LATIHAN PEMAIN PEMULA HOCKEY

    Directory of Open Access Journals (Sweden)

    In’am Attaqi

    2016-10-01

    Full Text Available Background issues that hamper the development of hockey in Central Java due to the lack of means of stick that is expensive and so difficult to get it. The focus of this research problem is to design products hockey stick model development tool for training novice players and test products hockey stick model development tool for training novice players.The approach used in this research is the Research and Development. Phase of the study include preliminary research, design modeling, model development testing procedures, expert Judgment, small-scale trials, trials broad scale. The subject of this study is Mts Miftahussalam 1 Wonosalam Demak. Hockey expert of experts and specialists timber expert. The data analysis phase of field work and data analysis stage include observation, observation, interviews, documentation and effectiveness testing of products, expert judgment hockey expert of experts and specialists timber expert.The results of this study are the product hockey stick for beginner hockey players training in Mts Miftahussalam 1 Wonosalam.PANDAWA hockey stick product can be used as a means of practicing basic techniques for beginner hockey players, hockey stick PANDAWA product can be used as a training tool in improving the ability of the basic techniques of playing hockey, hockey stick PANDAWA product can be used as a means of playing hockey for the novice player.

  1. Activity Profile and Between-Match Variation in Elite Male Field Hockey.

    Science.gov (United States)

    Sunderland, Caroline D; Edwards, Phillip L

    2017-03-01

    Sunderland, CD and Edwards, PL. Activity profile and between-match variation in elite male field hockey. J Strength Cond Res 31(3): 758-764, 2017-This study aimed to (a) provide a position-specific activity profile for elite male hockey players, (b) determine if the activity profile was altered by the introduction of the "self-pass" rule, and (c) provide information relating to match-to-match variability in elite male field hockey. The activity of 28 elite male field hockey players was analyzed over 2 seasons totaling 395 player-match analyses using Global Positioning Satellite technology. Total distance, high-speed running (>15.5 km·h), sprinting (>20 km·h), and mean speed were recorded. Players were categorized into 4 positions: fullback (FB), halfback (HB), midfield (M), and forward (F). Data were analyzed using a 2-way analysis of variance (season, position) and between-match coefficients of variation (CV). The time played differs with position (FB: 65.5 ± 5.3, HB: 49.5 ± 11.5, M: 45.9 ± 7.1, F: 39.5 ± 5.4 minutes; p < 0.0005) and thus affected the activity profile. Total distance covered was greater for fullbacks (FB: 8,001 ± 447, HB: 6,435 ± 1,399, M: 6,415 ± 908, F: 5,844 ± 762 m, p < 0.001), and mean speed and percentage time spent high-speed running and sprinting were greater for forwards than all other positions (HSR: FB: 6.8 ± 1.0, HB: 8.8 ± 1.3, M: 10.7 ± 1.2, F: 13.5 ± 1.8%, p < 0.001). The activity profile did not differ with the introduction of the self-pass. Match-to-match variability (CV) ranged from 5.0% to 22.0% for total and sprint distance, respectively. This is the first study to present an activity profile of elite men's field hockey and its associated variability and demonstrates that each position is unique, and therefore, training and recovery should be position specific.

  2. The determination of critical rest interval from the intermittent critical velocity test in club-level collegiate hockey and rugby players.

    Science.gov (United States)

    Fukuda, David H; Smith, Abbie E; Kendall, Kristina L; Cramer, Joel T; Stout, Jeffrey R

    2011-04-01

    The intermittent critical velocity (ICV) test is used to quantify the relationship between velocity and time to exhaustion, yielding an aerobic parameter (ICV), an anaerobic parameter (anaerobic running capacity [ARC]), and critical rest interval (CRI). Critical rest interval is the theoretical rest period needed to maintain repeated bouts of exercise for an extended period of time without inducing fatigue during intermittent treadmill running. Fourteen collegiate, club-level male participants (mean ± SD; age: 21.4 ± 1.8 years; weight: 82.8 ± 5.9 kg; body fat: 11.8 ± 5.4%; and VO2max: 51.2 ± 2.8 ml · kg · min), primarily hockey and rugby players, completed the ICV test, using 15-second repeated sprints to exhaustion during separate sessions of treadmill running at varying supramaximal intensities. The time and total distance for each running session were used to determine ICV and ARC via linear regression. The CRI was calculated using the relationship between total distance during the ICV test and the number of intervals completed. Mean ICV and ARC (± SD) values were calculated as 4.80 ± 0.3 m · s and 154.1 ± 36 m, respectively. The mean ICV values were significantly different from the mean peak velocity (± SD) (4.67 ± 0.17 m · s) achieved during the VO2max test (p = 0.011). The CRI was calculated as mean ± SD: 33.9 ± 1.9 seconds. Body fat percentage measured by air displacement plethysmography (BOD POD®; r = -0.649; p = 0.012), lean body mass (r = -0.556; p = 0.039), fat mass (r = -0.634; p = 0.015), body weight (r = -0.669; p = 0.006), and relative VO2max (r = 0.562; p = 0.036) were significantly correlated with ICV. The ARC (r = 0.804; p = 0.001) and velocity at ventilatory threshold (r = -0.630; p = 0.016) were significantly correlated with CRI. The ability to quantify CRI, an additional variable derived from the ICV test, provides a possible measure that can be used in the prescription and evaluation of training methods.

  3. The impact of a sports vision training program in youth field hockey players.

    Science.gov (United States)

    Schwab, Sebastian; Memmert, Daniel

    2012-01-01

    The aim of this study was to investigate whether a sports vision training program improves the visual performance of youth male field hockey players, ages 12 to 16 years, after an intervention of six weeks compared to a control group with no specific sports vision training. The choice reaction time task at the D2 board (Learning Task I), the functional field of view task (Learning Task II) and the multiple object tracking (MOT) task (Transfer Task) were assessed before and after the intervention and again six weeks after the second test. Analyzes showed significant differences between the two groups for the choice reaction time task at the D2 board and the functional field of view task, with significant improvements for the intervention group and none for the control group. For the transfer task, we could not find statistically significant improvements for either group. The results of this study are discussed in terms of theoretical and practical implications. Key pointsPerceptual training with youth field hockey playersCan a sports vision training program improve the visual performance of youth male field hockey players, ages 12 to 16 years, after an intervention of six weeks compared to a control group with no specific sports vision training?The intervention was performed in the "VisuLab" as DynamicEye(®) SportsVision Training at the German Sport University Cologne.We ran a series of 3 two-factor univariate analysis of variance (ANOVA) with repeated measures on both within subject independent variables (group; measuring point) to examine the effects on central perception, peripheral perception and choice reaction time.The present study shows an improvement of certain visual abilities with the help of the sports vision training program.

  4. Correlations of Back Strength with Selected Anthropometric Variables and Performance Tests in Indian Inter-University Male Field Hockey Players

    Directory of Open Access Journals (Sweden)

    S. Koley

    2017-01-01

    Full Text Available : The purpose of this study was of two-fold: first, to estimate the back strength of Indian inter-university male field hockey players and, second, to search the correlations of it with selected anthropometric variables and performance tests. To serve this purpose, a total of nine anthropometric variables, such as height, weight, body mass index, percent body fat, knee height, length of femur, femur biepicondylar diameter, skeletal mass and back strength, and two performance tests, such as sit and reach test and Slalom sprint and dribble test were measured on purposely selected 120 Indian inter-university male hockey players aged 18–25 years collected from the inter-university competition held in Guru Nanak Dev University, Amritsar, India during March, 2014. An adequate number of controls (n=119 were also taken from the same place for comparison. The results showed that the hockey players had the higher mean values in all the variables, except percent body fat and slalom sprint and dribble test than their control counterparts, showing statistically significant differences (p ≤ 0.003 – 0.001 between them. No significant correlations of back strength were found with any of the variables in Indian inter-university male field hockey players. In conclusion, it may be stated that back strength may not be used as one of the indicating factors for the performance of the field hockey players.

  5. Professional-applied physical training students by means of field hockey

    Directory of Open Access Journals (Sweden)

    Pylypey L.P.

    2010-01-01

    Full Text Available Description of the modern crisis state of health and physical preparedness of graduating students of higher institutes is resulted. Most graduating students can not high-quality work on a production. Not efficiency of the existent system of physical education is rotined in the institutes of higher. The terms of intensification of educational process are considered. Efficiency and forming actuality is investigational for the students of motivation to the select kind of sport (field hockey. The stages of introduction of innovative approaches, new credit-module technologies in the river-bed of the Bologna system are presented.

  6. Unsupervised Pattern Recognition of Physical Fitness Related Performance Parameters among Terengganu Youth Female Field Hockey Players

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    Razali M. R.

    2017-02-01

    Full Text Available This study aims to identify the most significant physical fitness parameters among youth female Terengganu field hockey players. Multivariate methods of unsupervised pattern recognition of principal component analysis (PCA and descriptive statistic were used to determine the most significant physical fitness related performance parameters on 42 Terengganu youth female field hockey players. The first PC’s projected high factor loading in BMI (0.86 and predicted VO2max (-0.82 as the most significant parameters indicating the requirements of body composition in this sport. The second PC’s displayed high factor loading in 1-minute sit up (0.89 and 20-meter speed (-0.84 highlighting the need for core muscle strength. The third PC’s demonstrated high factor loading in V-sit and reach (0.71 and maximum push up (0.82 recognising the importance of upper muscle strength in the sport. The results from the current study revealed that certain physical fitness components are seemed to be more pronounced in the performance of the game by the Terengganu female youth hockey players. The study has indicated that body composition, core muscle strength and upper muscle strength are the most outstanding physical fitness variables possess by the players for the enactment of the game compared to other fitness parameters. Highlighting the physical fitness performance related parameters might help to evaluate the strength and weakness of the players on the relevant parameters which could prompt to the adjustment of the training programme for the inclusive improvement of the players.

  7. Somatotype characteristics of male sprinters, basketball, soccer, and field hockey players.

    Science.gov (United States)

    Toriola, A L; Salokun, S O; Mathur, D N

    1985-12-01

    In an effort to describe the physique associated with regular involvement in sports activity, the somatotypes of a group of 51 elite male athletes comprising sprinters (n = 10), basketball (n = 12), soccer (n = 15), and field hockey (n = 14) players, and 11 male nonathletes were studied. The subjects' physiques were assessed using the Health-Carter anthropometric somatotype method. Analysis of variance and Newman-Keuls post hoc method were used to test for significant differences among the mean somatotype ratings of the groups. The findings indicated that the nonathletes (3.5) were significantly more endomorphic (P less than 0.05) than the soccer players (2.5) and sprinters (2.4). The sprinters (3.6) and basketball players (3.7) had markedly higher ectomorphic ratings (P less than 0.05) as compared with the hockey players (2.0). The mesomorphic component did not differentiate the groups. The differences observed among the groups which could be attributed to genetic and environmental influences reflect the variability in the morphological characteristics of athletes and nonathletes.

  8. THE IMPACT OF A SPORTS VISION TRAINING PROGRAM IN YOUTH FIELD HOCKEY PLAYERS

    Directory of Open Access Journals (Sweden)

    Sebastian Schwab

    2012-12-01

    Full Text Available The aim of this study was to investigate whether a sports vision training program improves the visual performance of youth male field hockey players, ages 12 to 16 years, after an intervention of six weeks compared to a control group with no specific sports vision training. The choice reaction time task at the D2 board (Learning Task I, the functional field of view task (Learning Task II and the multiple object tracking (MOT task (Transfer Task were assessed before and after the intervention and again six weeks after the second test. Analyzes showed significant differences between the two groups for the choice reaction time task at the D2 board and the functional field of view task, with significant improvements for the intervention group and none for the control group. For the transfer task, we could not find statistically significant improvements for either group. The results of this study are discussed in terms of theoretical and practical implications

  9. Effects of training on anthropometric, physiological and biochemical variables of Indian under 19 years field hockey players

    Directory of Open Access Journals (Sweden)

    Indranil Manna

    2015-10-01

    Full Text Available The aim of this study was to investigate the effects of training on anthropometric, physiological and biochemical variables of Indian under 19 year field hockey players. A total of 30 male field hockey players (U19, age: 16.00-18.99 yr, 17.7 ± 0.5 yr volunteered for this study. The training sessions were divided into 2 phases (a Preparatory Phase (PP, 8 weeks and (b Competitive Phase (CP, 4 weeks. The training programme consist of aerobic, anaerobic and skill development, and were completed 4 hrs/day; 5 days/week. Selected variables were measured at zero level (baseline data, BD and at the end of PP and CP. A significant (P<0.05 reduction in body fat, recovery heart rate, hemoglobin, total cholesterol, LDLC; and significant (P<0.05 increase in LBM, VO2max, anaerobic power, back and grip strength, serum urea, serum uric acid, HDLC level were noted among the players after the training. However, no significant difference was observed in stature, body mass, maximal heart rate (HRmax, and triglyceride level of the players after the training. The present study may provide useful information to the scientist and coaches to develop their training programme for the young field hockey players.

  10. Iron Metabolism in Field Hockey Players During an Annual Training Cycle

    Directory of Open Access Journals (Sweden)

    Podgórski Tomasz

    2015-09-01

    Full Text Available Post-physical training changes in iron metabolism in the human body often occur. To fully describe these processes, fifteen male Polish National Team field hockey players (age 27.7 ± 5.2 years, body mass 72.8 ± 7.6 kg and body height 177.1 ± 5.7 cm were examined in three phases of an annual training cycle: preparatory (T1, competitive (T2 and transition (T3. To assess aerobic fitness, maximal oxygen uptake (VO2max was evaluated. Based on the iron concentration, the changes in total iron binding capacity (TIBC, unsaturated iron binding capacity (UIBC and other selected haematological indicators (haemoglobin, erythrocytes, mean corpuscular haemoglobin - MCH in iron metabolism were estimated. The average values of maximum oxygen uptake increased from 54.97 ± 3.62 ml·kg−1·min−1 in T1 to 59.93 ± 3.55 ml·kg−1·min−1 in T2 (p<0.05 and then decreased to 56.21 ± 4.56 ml·kg−1·min−1 in T3 (p<0.05. No statistically significant changes in the erythrocyte count were noted. The MCH and haemoglobin concentration decreased between T1 and T2. The maximal exercise test caused a significant (p<0.05 increase in the plasma iron concentration during the competition and transition phases. Progressive but non-significant increases in resting iron concentration, TIBC and UIBC in the analysed annual training cycle were noted. To show global changes in iron metabolism in the human body, it is necessary to determine additional variables, i.e. UIBC, TIBC, haemoglobin, MCH or the erythrocyte count. The direction of changes in iron metabolism depends on both the duration and intensity of the physical activity and the fitness level of the subjects. Dietary intake of iron increases the level of this trace element and prevents anaemia associated with training overloads.

  11. The influence of social variables and moral disengagement on prosocial and antisocial behaviours in field hockey and netball.

    Science.gov (United States)

    Boardley, Ian D; Kavussanu, Maria

    2009-06-01

    In this study, we examined: (a) the effects of perceived motivational climate and coaching character-building competency on prosocial and antisocial behaviours towards team-mates and opponents in field hockey and netball; (b) whether the effects of perceived character-building competency on sport behaviours are mediated by moral disengagement; and (c) whether these relationships are invariant across sport. Field hockey (n = 200) and netball (n = 179) players completed questionnaires assessing the aforementioned variables. Structural equation modelling indicated that mastery climate had positive effects on prosocial and negative effects on antisocial behaviour towards team-mates, while performance climate had a positive effect on antisocial behaviour towards team-mates. Perceived character-building competency had a positive effect on prosocial behaviour towards opponents and negative effects on the two antisocial behaviours; all of these effects were mediated by moral disengagement. No effect was found for prosocial behaviour towards team-mates. The model was largely invariant across sport. The findings aid our understanding of social influences on prosocial and antisocial behaviours in sport.

  12. La eficacia del efecto látigo en el drag flick en el hockey hierba The effectiveness of the bullwhip effect in the Drag-flick in field hockey

    Directory of Open Access Journals (Sweden)

    C. López de Subijana

    2010-09-01

    Full Text Available

    El penalty córner es una de las jugadas más importantes en el hockey hierba. El drag-flick es la técnica de golpeo más eficaz en las jugadas de penalty córner (McLaughin, 1997. Los objetivos del presente estudio fueron el describir los parámetros cinemáticos del drag-flick en jugadores de nivel internacional y analizar las diferencias intergénero. La muestra fueron trece sujetos, un modelo, seis hombres y seis mujeres. El sistema de captura automático VICON registró 20 lanzamientos de cada jugador con una frecuencia de muestreo de 250 Hz. Las velocidades máximas angulares de las caderas, hombros y stick  fueron superiores  (p<0.01 en el modelo que en ambos grupos de género. Mediante la comparación estadística del modelo con ambos grupos de género se han podido determinar las claves de este gesto técnico, siendo necesario un movimiento hacia atrás del stick (efecto látigo antes de la aceleración de caderas y hombros, para terminar el gesto con la máxima aceleración del stick.
    Palabras Clave: Biomecánica, drag-flick, hockey hierba, cinemática

    The penalty corner is one of the most important goal plays in field hockey. The drag-flick is more efficient than other techniques when playing a penalty corner. The aims of this study were to describe the kinematics of international field hockey players during the drag-flick and to analyse gender differences. Thirteen participants, one male drag-flicker, six males and six females participated in the study. VICON optoelectronic system measured the kinematic parameters from the drag-flick with six cameras sampling at 250 Hz. Twenty trials were captured from each subject. Ball velocity at release, hips maximum angular velocity, stick minimum and maximum angular velocities were higher (p<0.01 in the drag-flicker than in both gender groups. Comparing with the drag-flicker we have found the cues of the skill, being necessary a

  13. Locomotor, Heart-Rate, and Metabolic Power Characteristics of Youth Women's Field Hockey: Female Athletes in Motion (FAiM) Study

    Science.gov (United States)

    Vescovi, Jason D.

    2016-01-01

    Purpose: The purpose of this study was to quantify the locomotor, heart-rate, and metabolic power characteristics of high-level youth female field hockey matches. Method: Players from the U21 and U17 Canadian women's national teams were monitored during a 4-match test series using Global Positioning System technology. Position (forward,…

  14. The construction of the training process highly skilled athletes in soccer and field hockey in the annual cycle of training

    Directory of Open Access Journals (Sweden)

    Kostyukevych V.M.

    2013-08-01

    Full Text Available The purpose of the study - to justify the theoretical and methodological principles and concepts of the training process of building highly skilled athletes in soccer and field hockey in the annual cycle of training. The results . Calculate the ratio of training loads of different orientation in the annual cycle of training. Means of producing football players in the annual training cycle is as follows: non-specific (general training exercise - 45.6%, specific - 54.4% (special training exercise - 4.1% subsidiary - 22, 7%, competitive - 27.6% . Means of producing players in the annual training cycle is as follows: non-specific (general training exercise - 49.0%, specific - 51.0% (special training - 2.3% subsidiary - 26.1%, competitive exercise - 22.0% .

  15. Laboratory- and field-based testing as predictors of skating performance in competitive-level female ice hockey

    Science.gov (United States)

    Henriksson, Tommy; Vescovi, Jason D; Fjellman-Wiklund, Anncristine; Gilenstam, Kajsa

    2016-01-01

    Objectives The purpose of this study was to examine whether field-based and/or laboratory-based assessments are valid tools for predicting key performance characteristics of skating in competitive-level female hockey players. Design Cross-sectional study. Methods Twenty-three female ice hockey players aged 15–25 years (body mass: 66.1±6.3 kg; height: 169.5±5.5 cm), with 10.6±3.2 years playing experience volunteered to participate in the study. The field-based assessments included 20 m sprint, squat jump, countermovement jump, 30-second repeated jump test, standing long jump, single-leg standing long jump, 20 m shuttle run test, isometric leg pull, one-repetition maximum bench press, and one-repetition maximum squats. The laboratory-based assessments included body composition (dual energy X-ray absorptiometry), maximal aerobic power, and isokinetic strength (Biodex). The on-ice tests included agility cornering s-turn, cone agility skate, transition agility skate, and modified repeat skate sprint. Data were analyzed using stepwise multivariate linear regression analysis. Linear regression analysis was used to establish the relationship between key performance characteristics of skating and the predictor variables. Results Regression models (adj R2) for the on-ice variables ranged from 0.244 to 0.663 for the field-based assessments and from 0.136 to 0.420 for the laboratory-based assessments. Single-leg tests were the strongest predictors for key performance characteristics of skating. Single leg standing long jump alone explained 57.1%, 38.1%, and 29.1% of the variance in skating time during transition agility skate, agility cornering s-turn, and modified repeat skate sprint, respectively. Isokinetic peak torque in the quadriceps at 90° explained 42.0% and 32.2% of the variance in skating time during agility cornering s-turn and modified repeat skate sprint, respectively. Conclusion Field-based assessments, particularly single-leg tests, are an adequate

  16. Impact of maximum speed on sprint performance during high-level youth female field hockey matches: female athletes in motion (FAiM) study.

    Science.gov (United States)

    Vescovi, Jason D

    2014-07-01

    The aim of this study was to examine the impact of maximum sprint speed on peak and mean sprint speed during youth female field hockey matches. Two high-level female field hockey teams (U-17, n = 24, and U-21, n = 20) were monitored during a 4-game international test series using global position system technology and tested for maximum sprint speed. Dependent variables were compared using a 3-factor ANOVA (age group, position, and speed classification); effect sizes (Cohen d) and confidence limits were also calculated. Maximum sprint speed was similar between age groups and positions, with faster players having greater speed than slower players (29.3 ± 0.4 vs 27.2 ± 1.1 km/h). Overall, peak match speed in youth female field hockey players reaches approximately 90% of maximum sprint speed. Absolute peak match speed and mean sprint speed during matches were similar among the age groups (except match 1) and positions (except match 2); however, peak match speed was greater for faster players in matches 3 and 4. No differences were observed in the relative proportion for mean sprint speeds for age groups or positions, but slower players consistently displayed similar relative mean sprint speeds by using a greater proportion of their maximum sprint speed.

  17. Muscle oxygen changes following Sprint Interval Cycling training in elite field hockey players.

    Science.gov (United States)

    Jones, Ben; Hamilton, David K; Cooper, Chris E

    2015-01-01

    This study examined the effects of Sprint Interval Cycling (SIT) on muscle oxygenation kinetics and performance during the 30-15 intermittent fitness test (IFT). Twenty-five women hockey players of Olympic standard were randomly selected into an experimental group (EXP) and a control group (CON). The EXP group performed six additional SIT sessions over six weeks in addition to their normal training program. To explore the potential training-induced change, EXP subjects additionally completed 5 x 30s maximal intensity cycle testing before and after training. During these tests near-infrared spectroscopy (NIRS) measured parameters; oxyhaemoglobin + oxymyoglobin (HbO2+ MbO2), tissue deoxyhaemoglobin + deoxymyoglobin (HHb+HMb), total tissue haemoglobin (tHb) and tissue oxygenation (TSI %) were taken. In the EXP group (5.34 ± 0.14 to 5.50 ± 0.14 m.s(-1)) but not the CON group (pre = 5.37 ± 0.27 to 5.39 ± 0.30 m.s(-1)) significant changes were seen in the 30-15 IFT performance. EXP group also displayed significant post-training increases during the sprint cycling: ΔTSI (-7.59 ± 0.91 to -12.16 ± 2.70%); ΔHHb+HMb (35.68 ± 6.67 to 69.44 ± 26.48 μM.cm); and ΔHbO2+ MbO2 (-74.29 ± 13.82 to -109.36 ± 22.61 μM.cm). No significant differences were seen in ΔtHb (-45.81 ± 15.23 to -42.93 ± 16.24). NIRS is able to detect positive peripheral muscle oxygenation changes when used during a SIT protocol which has been shown to be an effective training modality within elite athletes.

  18. Muscle oxygen changes following Sprint Interval Cycling training in elite field hockey players.

    Directory of Open Access Journals (Sweden)

    Ben Jones

    Full Text Available This study examined the effects of Sprint Interval Cycling (SIT on muscle oxygenation kinetics and performance during the 30-15 intermittent fitness test (IFT. Twenty-five women hockey players of Olympic standard were randomly selected into an experimental group (EXP and a control group (CON. The EXP group performed six additional SIT sessions over six weeks in addition to their normal training program. To explore the potential training-induced change, EXP subjects additionally completed 5 x 30s maximal intensity cycle testing before and after training. During these tests near-infrared spectroscopy (NIRS measured parameters; oxyhaemoglobin + oxymyoglobin (HbO2+ MbO2, tissue deoxyhaemoglobin + deoxymyoglobin (HHb+HMb, total tissue haemoglobin (tHb and tissue oxygenation (TSI % were taken. In the EXP group (5.34 ± 0.14 to 5.50 ± 0.14 m.s(-1 but not the CON group (pre = 5.37 ± 0.27 to 5.39 ± 0.30 m.s(-1 significant changes were seen in the 30-15 IFT performance. EXP group also displayed significant post-training increases during the sprint cycling: ΔTSI (-7.59 ± 0.91 to -12.16 ± 2.70%; ΔHHb+HMb (35.68 ± 6.67 to 69.44 ± 26.48 μM.cm; and ΔHbO2+ MbO2 (-74.29 ± 13.82 to -109.36 ± 22.61 μM.cm. No significant differences were seen in ΔtHb (-45.81 ± 15.23 to -42.93 ± 16.24. NIRS is able to detect positive peripheral muscle oxygenation changes when used during a SIT protocol which has been shown to be an effective training modality within elite athletes.

  19. The Collegial Evaluation Program: A Manual for the Professional Development of Teachers. Field Test Edition.

    Science.gov (United States)

    Dornbusch, Stanford M.; And Others

    The Collegial Evaluation Program leads to improved teaching by systematizing a way for teachers to obtain frequent, focused feedback from themselves, their students, and their colleagues. The process can be used by a single pair of teachers, a teaching team, a department, or an entire faculty. The purpose of this manual is to introduce the idea of…

  20. Mental training guide for the ice hockey goalies

    OpenAIRE

    Vehviläinen, Simo

    2012-01-01

    This product based Bachelor’s thesis is a guide called Mental training guide for ice hockey goalies. The guide was made primarily for Finnish ice hockey goalies and goalie coaches. The goal is to give them a guide that they could use as a part of every day coaching. The guide was made because there is big need for mental practices in a goalies game. Coaching in ice hockey focuses mainly only on physical skills and that’s why there is a need for the mental practices in a field of hock...

  1. Relationships and Predictive Capabilities of Jump Assessments to Soccer-Specific Field Test Performance in Division I Collegiate Players

    Directory of Open Access Journals (Sweden)

    Robert G. Lockie

    2016-12-01

    Full Text Available Leg power is an important characteristic for soccer, and jump tests can measure this capacity. Limited research has analyzed relationships between jumping and soccer-specific field test performance in collegiate male players. Nineteen Division I players completed tests of: leg power (vertical jump (VJ, standing broad jump (SBJ, left- and right-leg triple hop (TH; linear (30 m sprint; 0–5 m, 5–10 m, 0–10, 0–30 m intervals and change-of-direction (505 speed; soccer-specific fitness (Yo-Yo Intermittent Recovery Test Level 2; and 7 × 30-m sprints to measure repeated-sprint ability (RSA; total time (TT, performance decrement (PD. Pearson’s correlations (r determined jump and field test relationships; stepwise regression ascertained jump predictors of the tests (p < 0.05. All jumps correlated with the 0–5, 0–10, and 0–30 m sprint intervals (r = −0.65–−0.90. VJ, SBJ, and left- and right-leg TH correlated with RSA TT (r = −0.51–−0.59. Right-leg TH predicted the 0–5 and 0–10 m intervals (R2 = 0.55–0.81; the VJ predicted the 0–30 m interval and RSA TT (R2 = 0.41–0.84. Between-leg TH asymmetry correlated with and predicted left-leg 505 and RSA PD (r = −0.68–0.62; R2 = 0.39–0.46. Improvements in jumping ability could contribute to faster speed and RSA performance in collegiate soccer players.

  2. Creatine Usage and Education of Track and Field Throwers at National Collegiate Athletic Association Division I Universities.

    Science.gov (United States)

    Judge, Lawrence W; Petersen, Jeffrey C; Craig, Bruce W; Hoover, Donald L; Holtzclaw, Kara A; Leitzelar, Brianna N; Tyner, Rebecca M R; Blake, Amy S; Hindawi, Omar S; Bellar, David M

    2015-07-01

    The purpose of this study was to analyze the level of creatine use along with the perceived benefits and barriers of creatine use among collegiate athletes who participate in throwing events within the sport of track and field. A total of 258 throwers from National Collegiate Athletic Association Division I institutions completed an online survey regarding creatine. The results provided baseline levels of creatine use and allowed for the analysis of factors related to athletic conference affiliation. Results indicate that creatine use remains to be a common (32.7%) practice among throwers with significantly higher levels of use among Football Bowl Subdivision (FBS) conference athletes (44.6%) than Football Championship Subdivision (FCS) conference athletes (28.8%), χ² = 5.505, p = 0.019. The most common reasons for using creatine included a desire to improve/increase: strength (83.3%), recovery time (69.0%), and performance (60.7%). The most common perceived obstacles included contamination/quality control (39.5%), cost (33.3%), inconvenience (16.7%), and cramping (14.3%). A desire for additional education and training was noted through an expression of interest (55.6%) with significantly higher levels of interest from FBS athletes (65.6%) than FCS athletes (52.2%), χ² = 6.425, p = 0.039. However, the athletic departments provide nutritional supplement counseling at only 26.6% of the schools. Although the access to full-time nutritionist counsel was available at 57.3% of the schools, there was a significant difference (χ² = 9.096, p = 0.003) between FBS schools (73.7%) and FCS schools (51.7%).

  3. THE UNILATERAL BIG HOCKEY STICK INCISION FOR NECK DISSECTION IN THYROID CARCINOMA

    Institute of Scientific and Technical Information of China (English)

    刘宝国; 刘伟; 顾晋

    2001-01-01

    To investigate the feasibility and advantages of the unilateral big hockey stick incision in thyroid carcinoma. Method: Neck dissection using the unilateral big hockey stick incision was performed on 23 patients with thyroid carcinoma. Results: The big hockey stick incision results in a cosmetic scar which is barely visible and easily covered by hair or clothing, while it provides sufficient exposure of the operation field. A small area of marginal necrosis is occasionally seen at the apex of the skin flap due to preoperative radiotherapy. Conclusion: The unilateral big hockey stick incision has adequate surgical access, good healing of skin flaps, and a good cosmetic result.

  4. Home disadvantage in professional ice hockey.

    Science.gov (United States)

    Loignon, Andrew; Gayton, William F; Brown, Melissa; Steinroeder, William; Johnson, Carrie

    2007-06-01

    Occurrence of the home field disadvantage in professional ice hockey was examined by analyzing data on penalty shots from 1983-2004. This datum was used as it does not involve physical contact for only the player taking the penalty shot is involved in the outcome. As a result, inhibition of anxiety associated with physical contact should not occur, and diffusion of responsibility would not occur since only the shooter is involved. Analysis indicated the player who took the penalty shot did not make significantly fewer shots at home than in away games. The result did not support hypotheses about roles of physical contact and diffusion of responsibility in accounting for past failures to find the home disadvantage in professional ice hockey.

  5. Discussion on Short Corner China Women’S Field Hockey Team%浅谈中国女子曲棍球队短角球战术研究

    Institute of Scientific and Technical Information of China (English)

    陈朝霞; 吴熙

    2014-01-01

    Field hockey short corner is the most effective means of scoring, it has the speed of a short break, with flexible and difficult defensive characteristics, a team high and low success rate in the short corner team can win is an important factor;a lot of competition important outcome of the race is from the short corner to determine the success rate, so the national team will be as a focus of the study. Based on the Chinese team in the World Cup, world championships, Olympic Games and other major competitions in the short corner tactical technical statistics to compare the same event China women’s hockey between the other teams offensive and defensive short corner , and in China women’s hockey major race in offensive and defensive short corner to make a comparative analysis reveals the short corner in the China women’s hockey the importance of tactics to find China women’s hockey between World Championship In the short corner tactical gaps and shortcomings, and attempts to reveal the success rate China women’s hockey short corner and the relationship between results of the competition. Finally, analysis of China women’s hockey team comments and suggestions for preparing.%短角球是曲棍球比赛中最有效的得分手段,它具有破门速度短、配合方式灵活、防守难度大等特点,一个球队短角球成功率的高低是该队能否取得胜利的重要因素;很多大赛、重要比赛的结果也是由短角球的成功率来决定的,因此各国球队都将其作为研究的重点。通过对中国队在重大比赛中短角球战术的技术统计,比较在相同赛事中中国女曲与其他参赛队之间短角球的进攻和防守,中国女曲在各大赛中短角球的进攻和防守做出比较分析,揭示短角球战术在中国女曲中的重要性,找出中国女曲与世界强队之间在短角球战术上的差距和不足,并试图揭示中国女曲短角球成功率与比赛结果间的关系。最

  6. Physiological Characteristics of Incoming Freshmen Field Players in a Men’s Division I Collegiate Soccer Team

    Directory of Open Access Journals (Sweden)

    Robert G. Lockie

    2016-06-01

    Full Text Available Freshmen college soccer players will have lower training ages than their experienced teammates (sophomores, juniors, seniors. How this is reflected in field test performance is not known. Freshmen (n = 7 and experienced (n = 10 male field soccer players from the same Division I school completed soccer-specific tests to identify potential differences in incoming freshmen. Testing included: vertical jump (VJ, standing broad jump, and triple hop (TH; 30-m sprint, (0–5, 5–10, 0–10, and 0–30 m intervals; 505 change-of-direction test; Yo-Yo Intermittent Recovery Test Level 2 (YYIRT2; and 6 × 30-m sprints to measure repeated-sprint ability. A MANOVA with Bonferroni post hoc was conducted on the performance test data, and effect sizes and z-scores were calculated from the results for magnitude-based inference. There were no significant between-group differences in the performance tests. There were moderate effects for the differences in VJ height, left-leg TH, 0–5, 0–10 and 0–30 m sprint intervals, and YYIRT2 (d = 0.63–1.18, with experienced players being superior. According to z-score data, freshmen had meaningful differences below the squad mean in the 30-m sprint, YYIRT2, and jump tests. Freshmen soccer players may need to develop linear speed, high-intensity running, and jump performance upon entering a collegiate program.

  7. CORRELATION OF MRI GRADING OF BONE STRESS INJURIES WITH CLINICAL RISK FACTORS AND RETURN TO PLAY: A 5-YEAR PROSPECTIVE STUDY IN COLLEGIATE TRACK AND FIELD ATHLETES

    Science.gov (United States)

    Nattiv, Aurelia; Kennedy, Gannon; Barrack, Michelle T.; Abdelkerim, Ashraf; Goolsby, Marci A.; Arends, Julie C.; Seeger, Leanne L.

    2015-01-01

    Background Bone stress injuries are common in track and field athletes. Knowledge of risk factors and correlation of these to magnetic resonance imaging (MRI) grading could be helpful in determining recovery time. Purpose To examine the relationships between MRI grading of bone stress injury with clinical risk factors and time to return to sport in collegiate track and field athletes. Study Design Prospective cohort over 5 years. Methods Two hundred and eleven male and female collegiate track and field and cross-country athletes were followed prospectively through their competitive seasons. All athletes had a pre-participation history, physical exam, and anthropometric measurements obtained annually. An additional questionnaire was completed regarding nutritional behaviors, menstrual patterns and prior injuries, as well as a 3-day diet record. Dual energy X-ray absorptiometry was obtained at baseline and each year of participation in the study. Athletes with clinical evidence of bone stress injuries had plain radiographs. If radiographs were negative, MRI was obtained. Bone stress injuries were evaluated by two independent radiologists utilizing an MRI grading system. MRI grading and risk factors were evaluated to identify predictors of time to return to sport. Results Thirty-four (12 males, 22 females) of the 211 collegiate athletes sustained 61 bone stress injuries during the 5-year study period. The average prospective assessment for participants was 2.1 years. MRI grade and total body bone mineral density (BMD) emerged as significant and independent predictors of time to return to sport in the multiple regression model. Specifically, the higher the MRI grade, the longer the recovery time (psport. Conclusions Higher MRI grade, lower BMD, and skeletal sites of predominant trabecular bone structure were independently associated with delayed recovery of bone stress injuries in track and field athletes. Knowledge of these risk factors, as well as nutritional and

  8. Partners in the Parks: Field Guide to an Experiential Program in the National Parks. National Collegiate Honors Council Monograph Series

    Science.gov (United States)

    Digby, Joan

    2010-01-01

    The aim of Partners in the Parks (PITP) from its inception has been to introduce, or reintroduce, collegiate honors students to this country: not the transformed environment that we have constructed on its surface but the bedrock world upon which it rests. Like de Toqueville, Jefferson, Thoreau, Emerson, and so many others, these authors…

  9. Sport selection in under-17 male roller hockey

    NARCIS (Netherlands)

    Coelho-E-Silva, Manuel J.; Vaz, Vasco; Simoes, Filipe; Carvalho, Humberto M.; Valente-Dos-Santos, Joao; Figueiredo, Antonio J.; Pereira, Vanildo; Vaeyens, Roel; Philippaerts, Renaat; Elferink-Gemser, Marije T.; Malina, Robert M.

    2012-01-01

    Characteristics of 32 international and 41 local under-17 (U-17) (14.516.5 years) roller hockey players were considered in the context of discrimination by competitive level using training history, anthropometry, skeletal maturation, and several laboratory and field performance tests. More

  10. Sport selection in under-17 male roller hockey

    NARCIS (Netherlands)

    Coelho-E-Silva, Manuel J.; Vaz, Vasco; Simoes, Filipe; Carvalho, Humberto M.; Valente-Dos-Santos, Joao; Figueiredo, Antonio J.; Pereira, Vanildo; Vaeyens, Roel; Philippaerts, Renaat; Elferink-Gemser, Marije T.; Malina, Robert M.

    2012-01-01

    Characteristics of 32 international and 41 local under-17 (U-17) (14.516.5 years) roller hockey players were considered in the context of discrimination by competitive level using training history, anthropometry, skeletal maturation, and several laboratory and field performance tests. More internati

  11. 曲棍球%Hockey

    Institute of Scientific and Technical Information of China (English)

    姜全红

    2005-01-01

    @@ As one of the oldest of competitive pastimes, the sport of hockey dates back well before the Ancient Olympic Games. In medieval Europe, pictures of men playing a game with hooked1 sticks appear on stained-glass windows2 at both the Canterbury3 and Gloucester4 cathedrals5. It became so popular by the Middle Ages that it was banned6 in England for a time because it interfered with the practice of archery7, which was the basis for national defense. The name hockey probably derives from the French hocquet, or shepherd's crook8 and refers to the crooked9 stick.

  12. Position-specific performance indicators that discriminate between successful and unsuccessful teams in elite women's indoor field hockey: implications for coaching.

    Science.gov (United States)

    Vinson, Don; Peters, Derek M

    2016-01-01

    The aim of this investigation was to establish median performance profiles for the six playing positions in elite women's indoor hockey and then identify whether these position-specific profiles could discriminate between qualifying (top four), mid-table and relegated teams in the 2011-2012 England Hockey premier league. Successful passing in relegated teams was significantly lower (P teams in four of the five outfield positions. Furthermore, the right backs of qualifying teams demonstrated significantly fewer (P teams (x̃ = 19.5 ± CLs 21.0 and 17.0; x̃ = 7.5 ± CLs 8.0 and 6.0, respectively). Finally, the right forwards of relegated teams demonstrated significantly fewer (P teams (x̃ = 5.0 ± CLs 6.0 and 3.0, respectively) and significantly more (P teams (x̃ = 3.0 ± CLs 3.0 and 2.0, respectively). Based on these findings, coaches should adapt tactical strategies and personnel deployment accordingly to enhance the likelihood of preparing a qualifying team. Research should build from these data to examine dribbling, pressing and patterns of play when outletting.

  13. Neuropsychological factors related to college ice hockey concussions.

    Science.gov (United States)

    Pedersen, Heather A; Ferraro, F Richard; Himle, Michael; Schultz, Caitlin; Poolman, Mark

    2014-05-01

    We analyzed data from 74 male collegiate hockey players. Each athlete's season began with a baseline administration of the Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT) neuropsychology test battery. Fourteen athletes sustained a sport-related head injury and were readministered the test to assess the impact of the injury. A significant decrease in performance (compared to baseline) on immediate and delayed word recall and designs followed the first concussion. Following a second sport-related concussion, the 4 affected athletes showed significant decrease in visual motor speed. Performance improved on 2 response speed measures (Ps life concussions and head injury on late-life consequences, such as chronic traumatic encephalopathy, and more immediate issues such as return-to-play decisions for athletes.

  14. UNILATERAL BIG HOCKEY STICK INCISION FOR NECK DISSECTION IN HEAD AND NECK CARCINOMA

    Institute of Scientific and Technical Information of China (English)

    刘宝国; 赵振生; 李明强; 陈荣鋭; 王建军; 张乃嵩

    2004-01-01

    Objective: To investigate for the feasibility and advantages performed by the unilateral big hockey stick incision (BHSI) in head and neck carcinoma. Methods: Neck dissection by using the unilateral big hockey stick incision (BHSI) was performed on 93 patients with head and neck carcinoma. Results: The big hockey stick incision has a cosmetic scar and not scar contraction and is barely visible and easily covered in hair and clothing; sufficient exposure of the operation field; a small area of marginal necrosis was occasionally seen at the apex of the skin flap due to having preoperative radiotherapy. Conclusion: The unilateral big hockey stick incision has adequate surgical access, good healing of skin flaps, and a good cosmetic result.

  15. 我国女子曲棍球运动员运动损伤调查和预防%Investigation and Prevention on Sports Injury of Women Field Hockey Players in China

    Institute of Scientific and Technical Information of China (English)

    赵慧娣; 于楼成; 徐勤儿

    2011-01-01

    向参加2010年全国女子曲棍球冠军杯赛运动员发放调查问卷,同时对各队的队医、教练员进行访谈,收集相关资料,并进行统计分析研究。结果表明,运动员在训练期间无接触情况下受伤比例较高,运动员运动损伤具有一定的项目特点,如被球击伤和被棍击伤,此外他人侵犯、力量不足、场地护具欠佳等也是运动员受伤的原因。%By making questionnaire on women players who participating in 2010 field hockey champion cup, and interviewing the doctors, coach of each team, this paper studies the relevant data and statistical analysis. The re- sult shows that players in training with

  16. Kinematic Study on the 3 Drag Flick Postures in Short Corner Attack of Field Hockey%曲棍球短角球进攻时3种拉射姿势的运动学研究

    Institute of Scientific and Technical Information of China (English)

    高跃文

    2012-01-01

    成功实施短角球进攻包含很多方面的因素,生物力学是其中最重要因素之一。本文根据6名曲棍球运动员以3种拉射姿势分别向球门4个边角进攻的运动学参数,归纳总结出不同边角的最佳拉射角,为运动队短角球训练提供一定的运动生物力学实验依据。%A successful short corner attack includes quite a few elements,biomechanics is one of them.According to the kinematic parameters of attacking the four corners of the goal with 3 drag flick postures of the 6 players,the author selects the best drag flick angles for attacking the different goal corners in order to provide biomechanical reference for the training of short corner attack of the field hockey teams.

  17. Correlation of MRI grading of bone stress injuries with clinical risk factors and return to play: a 5-year prospective study in collegiate track and field athletes.

    Science.gov (United States)

    Nattiv, Aurelia; Kennedy, Gannon; Barrack, Michelle T; Abdelkerim, Ashraf; Goolsby, Marci A; Arends, Julie C; Seeger, Leanne L

    2013-08-01

    Bone stress injuries are common in track and field athletes. Knowledge of risk factors and correlation of these to magnetic resonance imaging (MRI) grading could be helpful in determining recovery time. To examine the relationships between MRI grading of bone stress injuries with clinical risk factors and time to return to sport in collegiate track and field athletes. Cohort study (prognosis); Level of evidence, 2. A total of 211 male and female collegiate track and field and cross-country athletes were followed prospectively through their competitive seasons. All athletes had preparticipation history, physical examination, and anthropometric measurements obtained annually. An additional questionnaire was completed regarding nutritional behaviors, menstrual patterns, and prior injuries, as well as a 3-day diet record. Dual-energy X-ray absorptiometry was performed at baseline and each year of participation in the study. Athletes with clinical evidence of bone stress injuries had plain radiographs. If radiograph findings were negative, MRI was performed. Bone stress injuries were evaluated by 2 independent radiologists utilizing an MRI grading system. The MRI grading and risk factors were evaluated to identify predictors of time to return to sport. Thirty-four of the athletes (12 men, 22 women) sustained 61 bone stress injuries during the 5-year study period. The mean prospective assessment for participants was 2.7 years. In the multiple regression model, MRI grade and total-body bone mineral density (BMD) emerged as significant and independent predictors of time to return to sport. Specifically, the higher the MRI grade (P = .004) and lower the BMD (P = .030), the longer the recovery time. Location of the bone injury at predominantly trabecular sites of the femoral neck, pubic bone, and sacrum was also associated with a prolonged time to return to sport. Female athletes with oligomenorrhea and amenorrhea had bone stress injuries of higher MRI grades compared with

  18. Bias in collegiate courts

    OpenAIRE

    Olowofoyeku, AA

    2016-01-01

    This article addresses the issues attending common law collegiate courts’ engagements with allegations of bias within their own ranks. It will be argued that, in such cases, it would be inappropriate to involve the collegiate panel or any member thereof in the decision, since such involvement inevitably encounters difficulties. The common law’s dilemmas require drastic solutions, but the common law arguably is illequipped to implement the required change. The answer, it will be argued, is ...

  19. Evaluation of the BOD POD for estimating percent body fat in collegiate track and field female athletes: a comparison of four methods.

    Science.gov (United States)

    Bentzur, Keren M; Kravitz, Len; Lockner, Donna W

    2008-11-01

    This investigation examined the accuracy of the BOD POD on a group of Division I collegiate track and field female athletes (N = 30). Hydrostatic weighing (HW) was used as the gold standard method. Body density (Db) values obtained from the BOD POD (Db BP) were compared with those determined by HW (Db HW). Both Db values were converted to percent body fat (%BF) using the Siri equation for comparison. Percent body fat values obtained from the BOD POD (BF BP) were also compared with those obtained from dual-energy X-ray absorptiometry (DXA, BF DXA) and skinfold (SF, BF SF). The validity of the BOD POD was assessed using repeated-measures analysis of variance (ANOVA), and the relationship between the methods was examined through Pearson correlation. Average Db BP was 0.00890 g x cm(-3) lower (p BOD POD. Values for BFDXA and BFBP also differed significantly (p BOD POD has the potential to be used as a body composition analysis tool for female athletes. The advantages of the BOD POD over HW encourage further investigation of this instrument. However, the fact that the BOD POD and SF results did not differ significantly might suggest that the SF could be used in its place until a better rate of accuracy for this instrument is established.

  20. Integration of the functional movement screen into the National Hockey League Combine.

    Science.gov (United States)

    Rowan, Chip P; Kuropkat, Christiane; Gumieniak, Robert J; Gledhill, Norman; Jamnik, Veronica K

    2015-05-01

    The sport of ice hockey requires coordination of complex skills involving musculoskeletal and physiological abilities while simultaneously exposing players to a high risk for injury. The Functional Movement Screen (FMS) was developed to assess fundamental movement patterns that underlie both sport performance and injury risk. The top 111 elite junior hockey players from around the world took part in the 2013 National Hockey League Entry Draft Combine (NHL Combine). The FMS was integrated into the comprehensive medical and physiological fitness evaluations at the request of strength and conditioning coaches with affiliations to NHL teams. The inclusion of the FMS aimed to help develop strategies that could maximize its utility among elite hockey players and to encourage or inform further research in this field. This study evaluated the outcomes of integrating the FMS into the NHL Combine and identified any links to other medical plus physical and physiological fitness assessment outcomes. These potential associations may provide valuable information to identify elements of future training programs that are individualized to athletes' specific needs. The results of the FMS (total score and number of asymmetries identified) were significantly correlated to various body composition measures, aerobic and anaerobic fitness, leg power, timing of recent workouts, and the presence of lingering injury at the time of the NHL Combine. Although statistically significant correlations were observed, the implications of the FMS assessment outcomes remain difficult to quantify until ongoing assessment of FMS patterns, tracking of injuries, and hockey performance are available.

  1. Leadership Development of Team Captains in Collegiate Varsity Athletics

    Science.gov (United States)

    Grandzol, Christian; Perlis, Susan; Draina, Lois

    2010-01-01

    This study examined the leadership development of team captains and student-athletes engaged in NCAA Division III intercollegiate athletics at 6 private institutions of higher education. Student-athletes in the sports of men's and women's soccer, women's field hockey, men's and women's cross country, and women's tennis completed the 2nd edition of…

  2. Collegiality and Intellectual Love

    Science.gov (United States)

    Rowland, Stephen

    2008-01-01

    The author expresses concern that love of knowledge, which he views as the most valuable resource in universities, is not taken seriously by the academic press. This article considers what is to be done about it; and discusses how collegiality, based upon a celebration of intellectual love, might restore, or create, integrity within the academic…

  3. Valor Collegiate Academies

    Science.gov (United States)

    EDUCAUSE, 2015

    2015-01-01

    The four guiding principles behind the blended, competency-based, personalized learning model of Valor Collegiate Academies, a charter organization serving grades 5-12 in Nashville, TN: (1) Reflect the diversity of both our country and local community; (2) Personalize a student's experience to meet his/her unique academic and non-academic needs;…

  4. Planes, Pucks, Automobiles: Migration and Youth Hockey

    Directory of Open Access Journals (Sweden)

    Alexandra Mountain

    2015-08-01

    Full Text Available This project positions the professionalization of youth hockey as a small component of a much larger process of the “globalization” of sport. Youth hockey players have moved to Canada internationally and among Canadian provinces locally. This study traces the movement and advances of young players (ages 16-20, 1980-2012, of the London Knights (London, Ontario, tapping into already compiled data on players’ team affiliation that many historians might overlook.  This database shows an emerging pattern of transnational and internal migration among professional youth players. 

  5. Injury potential in modern ice hockey.

    Science.gov (United States)

    Sim, F H; Chao, E Y

    1978-01-01

    The majority of the damaging forces to the soft tissue, bone, and articular joint structures of modern hockey players during the energetic activities involved in the game are attributable to impact action during high-speed motion. In addition, non-contact musculoligamentous injuries are common because of the complex forces that are involved. The injury potential of this sport is assessed indirectly from the force and motion involved. The experimental method of measuring the kinematic motion and the impact forces inherent to the sport are presented. Although hockey is a fast and furious game with high injury potential, fortunately the number of serious injuries is not as great as one might expect.

  6. Collegiality and teamwork

    DEFF Research Database (Denmark)

    Bovbjerg, Kirsten Marie; Søgaard Sørensen, Marianne

    2009-01-01

    This article deals with teamwork as one of the social technologies that, also within the teaching sector, currently contributes to changing employee understanding of their work life, in this case that of teachers. Based on empirical studies done on vocational colleges, teamwork is contrasted...... to what the authors call collegial co-operation, which comprises social and solidarity relations that in a variety of ways and to different degrees have always existed among colleagues. By examining the structure of teamwork and collegial co-operation, their social aspects and values as well as their view...... of knowledge, the authors attempt to discover what factors are actually at play when a school introduces teamwork among teachers. The two co-operation logics appear to make use, for example, of two different types of democratic approaches that in turn influence the democratic domain in which students learn....

  7. MODEL PENGEMBANGAN PERMAINAN FUN HOCKEY PADA SISWA KELAS XI SMA NEGERI 1 BAWANG KECAMATAN BAWANG KABUPATEN BATANG TAHUN 2014.

    Directory of Open Access Journals (Sweden)

    Wahyu Putri Vembriana Dewi

    2015-07-01

    Full Text Available The purpose of this study was to produce a model of the development of the game Fun Hockey in the XI student class of SMAN 1 Bawang, Bawang Subdistrict, Batang. The method used is the development of Borg & Gall, namely: (1 to analyze the products that will be developed that are obtained from the information collection, including field observations and study of literature, (2 develop a form of initial product model game Fun Hockey, (3 expert validation test which uses a physical education expert (hockey skills and learning experts physical education in high school, as well as small scale test, using questionnaires and consultations later in the analysis, (4 the first product revision, revision of the product based on the results of expert evaluation and testing of small-scale (12 students, (5 field trials (28 students, (6 the revision of the final product is done based on the results of field trials, (7 the outcome Fun Hockey game for students of XI class generated through the revision of field trials. From the data on the differences can concluded that the Fun Hockey Game model development can be implemented as an alternative model for students learning physical education XI class SMAN 1 Bawang, Bawang Subdistrict, Batang.

  8. Enskog and van der Waals play hockey

    NARCIS (Netherlands)

    Cutchis, Protagoras; Beijeren, H. van; Dorfman, J.R.

    1977-01-01

    We consider the mean free path of a hockey puck in a system of other pucks on an air table, and show how the simple low-density kinetic-theory value for this mean free path can be extended to higher densities. This approach is connected both with the Enskog theory of the transport properties of

  9. Diet Quality of Collegiate Athletes

    Science.gov (United States)

    Webber, Kelly; Stoess, Amanda Ireland; Forsythe, Hazel; Kurzynske, Janet; Vaught, Joy Ann; Adams, Bailey

    2015-01-01

    Background/Objectives: Collegiate athletes generally appear healthy according to weight for height and body fat standards. Despite the fact that there are well known connections between athletic performance and nutrition, little is known about the diets of collegiate athletes. The objective of this study was to determine the diet quality of 138…

  10. 江苏省女子曲棍球后备人才培养现状研究%A research on the situation of reserve talents cultivation in women field hockey in Jiangsu Province

    Institute of Scientific and Technical Information of China (English)

    陈金凤

    2014-01-01

    采用文献资料法、问卷调查法等,对江苏省女子曲棍球后备人才培养现状进行研究,结果显示:江苏省女子曲棍球后备人才培养模式较为先进,科学化训练程度较高,训练保障体系优越。但教练员执教年限较短,科研能力薄弱;后备人才生源区域局限性明显,各个年龄段人才储备不均衡;后备人才文化学习现状不理想;曲棍球项目普及率低,出路相对狭窄,缺乏社会关注和安置政策保障。建议:提高教练员科学化训练水平;推动曲棍球项目普及开展;出台措施,促进后备人才全面发展;拓宽后备人才的出路与就业渠道。%In this paper, we use documentary and questionnaire survey to explore current talent reserve situation of Jiangsu Province women hockey. It turns out that the cultivation of Jiangsu Province women hockey is very advanced, the scientific training effect is very high, the training security system is very superior, but coaches have few teaching life and weak scientific research ability; the areas of reserved talents are limited in few places and imbalanced in ages;the reserved talents poor in study;hockey has low popularity rate and dull future, and lacks of public care and protection of policy. Suggestion: more scientific training methods of coached, more popular of hockey itself, more introduced measures to entire development and more future guarantee to reserved talents.

  11. female collegiate athletes

    Directory of Open Access Journals (Sweden)

    JL Ayers

    2016-08-01

    Full Text Available Olympic weightlifting movements and their variations are believed to be among the most effective ways to improve power, strength, and speed in athletes. This study investigated the effects of two Olympic weightlifting variations (hang cleans and hang snatches, on power (vertical jump height, strength (1RM back squat, and speed (40-yard sprint in female collegiate athletes. 23 NCAA Division I female athletes were randomly assigned to either a hang clean group or hang snatch group. Athletes participated in two workout sessions a week for six weeks, performing either hang cleans or hang snatches for five sets of three repetitions with a load of 80-85% 1RM, concurrent with their existing, season-specific, resistance training program. Vertical jump height, 1RM back squat, and 40-yard sprint all had a significant, positive improvement from pre-training to post-training in both groups (p≤0.01. However, when comparing the gain scores between groups, there was no significant difference between the hang clean and hang snatch groups for any of the three dependent variables (i.e., vertical jump height, p=0.46; 1RM back squat, p=0.20; and 40-yard sprint, p=0.46. Short-term training emphasizing hang cleans or hang snatches produced similar improvements in power, strength, and speed in female collegiate athletes. This provides strength and conditioning professionals with two viable programmatic options in athletic-based exercises to improve power, strength, and speed.

  12. Influence of the program of physical training of highly skilled hockey players (forwards on indicators of the competitive activity

    Directory of Open Access Journals (Sweden)

    Volodymyr Goncharenko

    2015-02-01

    Full Text Available Purpose: to define the efficiency of the program of physical training of highly skilled sportswomen on indicators of the competitive activity in field hockey that was offered in the first pre-season of an annual macrocycle. Material and Methods: influence of the offered program was decided with the help of testing of motive qualities and technical elements of female hockey players. Results: correlation between indicators of the competitive activity of players of attack and the level of physical preparation was found out. Conclusions: positive influence of introduction of the program on physical preparation for highly skilled female hockey players, namely – forwards, on indicators of their competitive activity is revealed.

  13. Children's social relationships and motivation in sledge hockey.

    Science.gov (United States)

    Wynnyk, Katrina; Spencer-Cavaliere, Nancy

    2013-10-01

    The purpose of this qualitative case study was to explore children with disabilities' social relationships and motivation to take part in sledge hockey. Harter's (1978) theory of Competence Motivation was used as the conceptual framework. Ten children (1 girl and 9 boys) between ages 11-16 years, who experienced a range of disabilities, participated. Primary data were collected using semistructured interviews, participant observations, and field and reflective notes. The thematic analysis led to four themes: (a) coach feedback, (b) parental involvement, (c) skill and belonging, and (d) (dis)ability sport. The findings revealed that interactions with significant others contributed extensively to the participant's perceptions of competence and motivation to participate, as did the sport's competitive nature. The findings are discussed in the context of Harter's theory and the children's sport and adapted physical activity inclusion literature.

  14. Functional State of Puberty Aged Hockey Players’ Nervous System

    Directory of Open Access Journals (Sweden)

    I.V. Shichavin

    2012-06-01

    Full Text Available The article estimates age-specific indexes of nervous system, responsible for juveniles’ speed qualities, training in Children and Youth Ice Hockey School. The received data justifies the necessity for individual approach to each hockey player, considering his age peculiarities and, respectively the functioning of the nervous system in the course of training organization.

  15. Bebop on the Hockey Pitch: Cross-Disciplinary Creativity and Skills Transfer

    OpenAIRE

    Clive Maxwell Harrison

    2016-01-01

    This paper generalises task-specific (but dissimilar) skills, from the jazz concert stage and from the hockey field, into the domain of creativity research. What is sought are clues to what skills or creativities are transferable across dissimilar domains. It is argued that certain domain-general skills are transferable across domains, but a domain-general or ‘c’ creative capacity, is not. Rather than transferring some over-arching capacity to be universally creative, this research highlights...

  16. Bodychecking rules and concussion in elite hockey.

    Directory of Open Access Journals (Sweden)

    Laura Donaldson

    Full Text Available Athletes participating in contact sports such as ice hockey are exposed to a high risk of suffering a concussion. We determined whether recent rule changes regulating contact to the head introduced in 2010-11 and 2011-12 have been effective in reducing the incidence of concussion in the National Hockey League (NHL. A league with a longstanding ban on hits contacting the head, the Ontario Hockey League (OHL, was also studied. A retrospective study of NHL and OHL games for the 2009-10 to 2011-12 seasons was performed using official game records and team injury reports in addition to other media sources. Concussion incidence over the 3 seasons analyzed was 5.23 per 100 NHL regular season games and 5.05 per 100 OHL regular season games (IRR 1.04; 95% CI 1.01, 1.50. When injuries described as concussion-like or suspicious of concussion were included, incidences rose to 8.8 and 7.1 per 100 games respectively (IRR 1.23; 95% CI 0.81, 1.32. The number of NHL concussions or suspected concussions was lower in 2009-10 than in 2010-11 (IRR 0.61; 95% CI 0.45, 0.83, but did not increase from 2010-11 to 2011-12 (IRR 1.05; 95% CI 0.80, 1.38. 64.2% of NHL concussions were caused by bodychecking, and only 28.4% of concussions and 36.8% of suspected concussions were caused by illegal incidents. We conclude that rules regulating bodychecking to the head did not reduce the number of players suffering concussions during NHL regular season play and that further changes or stricter enforcement of existing rules may be required to minimize the risk of players suffering these injuries.

  17. Visual cues in ice hockey goaltending.

    Science.gov (United States)

    Salmela, J H; Fiorito, P

    1979-03-01

    The effect of both the availability and the quality of visual cues preceding stick-puck contact was investigated for an ice hockey goaltending task. Thirty-four young (15.8 years) goaltenders observed filmed sequences of a hockey player approaching the net and directing a shot to one of the four corners. The film sequences were edited so that 2, 4 or 8 images were occluded prior to the impact of the stick with the puck, reflecting durations of 1/12, 1/6, 1/3 of a second, respectively. The subjects' performances for both the wrist and the slap shot were measured as well as the level of response confidence in both the horizontal and vertical planes. The results indicated that performance precision was aided by the increased availability of pre-shot visual cues. It was also evident that the wrist shot provided more cues for the goaltender than did the slap shot. Performances were found to be superior in the horizontal as compared to the vertical plane. In all dimensions, the subjects' perceptions of their success closely followed the actual performance patterns. It appeared that information that could facilitate anticipation in this goaltending task was both available and useable during the period that precedes the shot.

  18. An on-ice measurement approach to analyse the biomechanics of ice hockey skating.

    Science.gov (United States)

    Buckeridge, Erica; LeVangie, Marc C; Stetter, Bernd; Nigg, Sandro R; Nigg, Benno M

    2015-01-01

    Skating is a fundamental movement in ice hockey; however little research has been conducted within the field of hockey skating biomechanics due to the difficulties of on-ice data collection. In this study a novel on-ice measurement approach was tested for reliability, and subsequently implemented to investigate the forward skating technique, as well as technique differences across skill levels. Nine high caliber (High) and nine low caliber (Low) hockey players performed 30 m forward skating trials. A 3D accelerometer was mounted to the right skate for the purpose of stride detection, with the 2nd and 6th strides defined as acceleration and steady-state, respectively. The activity of five lower extremity muscles was recorded using surface electromyography. Biaxial electro-goniometers were used to quantify hip and knee angles, and in-skate plantar force was measured using instrumented insoles. Reliability was assessed with the coefficient of multiple correlation, which demonstrated moderate (r>0.65) to excellent (r>0.95) scores across selected measured variables. Greater plantar-flexor muscle activity and hip extension were evident during acceleration strides, while steady state strides exhibited greater knee extensor activity and hip abduction range of motion (p<0.05). High caliber exhibited greater hip range of motion and forefoot force application (p<0.05). The successful implementation of this on-ice mobile measurement approach offers potential for athlete monitoring, biofeedback and training advice.

  19. An on-ice measurement approach to analyse the biomechanics of ice hockey skating.

    Directory of Open Access Journals (Sweden)

    Erica Buckeridge

    Full Text Available Skating is a fundamental movement in ice hockey; however little research has been conducted within the field of hockey skating biomechanics due to the difficulties of on-ice data collection. In this study a novel on-ice measurement approach was tested for reliability, and subsequently implemented to investigate the forward skating technique, as well as technique differences across skill levels. Nine high caliber (High and nine low caliber (Low hockey players performed 30 m forward skating trials. A 3D accelerometer was mounted to the right skate for the purpose of stride detection, with the 2nd and 6th strides defined as acceleration and steady-state, respectively. The activity of five lower extremity muscles was recorded using surface electromyography. Biaxial electro-goniometers were used to quantify hip and knee angles, and in-skate plantar force was measured using instrumented insoles. Reliability was assessed with the coefficient of multiple correlation, which demonstrated moderate (r>0.65 to excellent (r>0.95 scores across selected measured variables. Greater plantar-flexor muscle activity and hip extension were evident during acceleration strides, while steady state strides exhibited greater knee extensor activity and hip abduction range of motion (p<0.05. High caliber exhibited greater hip range of motion and forefoot force application (p<0.05. The successful implementation of this on-ice mobile measurement approach offers potential for athlete monitoring, biofeedback and training advice.

  20. Direction for optimization of the training process in junior hockey

    Directory of Open Access Journals (Sweden)

    Kygaevskiy S.A.

    2014-02-01

    Full Text Available Purpose: to consider the possible directions of optimization of training activity in youth hockey and offer practical advice. Material : study analyzed data from the literature and the latest achievements in the practice of training the player’s domestic and foreign authors on training in youth sports. Results : innovative approaches are considered in the initial stages of training sports perfection, as well as various areas of optimization of the training process in the initial stages of hockey and preliminary basic training. The examples of the training process in the North American and European hockey schools. The questions concerning the construction and orientation of training process at the initial stages and pre- basic training. Conclusions : highlighted promising areas for optimization of the training process of young hockey players in the initial stages of sports perfection.

  1. Re-examining the home disadvantage in professional ice hockey.

    Science.gov (United States)

    Gayton, William F; Perry, Scott M; Loignon, Andrew C; Ricker, Angela

    2011-04-01

    Occurrence of the home disadvantage in professional ice hockey was examined by analyzing shootout data from 2005 through 2008. Results indicated that teams involved in shootouts playing at their home arenas did not lose significantly more games at home than on the road. Results did not support the hypotheses that emphasize the roles of physical contact and diffusion of responsibility in accounting for past failures to find the home disadvantage in professional ice hockey.

  2. MASCULINITY AND SPORT REVISTED: A REVIEW OF LITERATURE ON HEGEMONIC MASCULINITY AND MEN'S ICE HOCKEY IN CANADA

    Directory of Open Access Journals (Sweden)

    Cheryl A. MacDonald

    2014-04-01

    Full Text Available Ice hockey is particularly significant in Canada as it acts as a primary site of socialization for boys and men. This form of socialization raises questions about masculinity on the public agenda in terms of the problematic nature of hypermasculinity in sport, stereotypical images of athletes, and questions of social responsibility as both men and athletes. These issues are presently relevant as Canada (and perhaps all of North America finds itself in an era characterized by accounts in mainstream media of competitive athletes’ cavalier lifestyles, hazing, violence, homophobia, drug addictions, and suicides. This review of literature uses secondary research to problematize masculinity in the ice hockey context by presenting the overarching claim that male hockey players are hegemonically masculine individuals. The piece begins by defining Australian sociologist R.W. Connell’s (1987 concept of hegemonic masculinity and situating it in the contemporary academic context. Next, it offers an overview of relevant literature on masculinity and sport along with a concise examination of scholarly work on the relationship between hegemonic masculinity and ice hockey in Canada. It concludes by summarising calls for further research in the literature and by suggesting approaches to future studies in the field.

  3. Gender attitudes and sexual behaviors: comparing center and marginal athletes and nonathletes in a collegiate setting.

    Science.gov (United States)

    Gage, Elizabeth Ann

    2008-09-01

    This research examines the impact of participating in different sports on male athletes' gender attitudes, hegemonic masculinity, sexual behavior, and sexual aggression. Expanding on past research that compares athletes with nonathletes, this research finds differences between collegiate athletes and men who do not participate in collegiate sports, as well as between men who play different collegiate sports. Athletes in center sports (such as football) scored significantly higher on hyper-masculinity scales, had lower attitudes toward women, and displayed more sexual aggression and more sexual activity than men who competed in marginal sports (e.g., track and field) or not at all.

  4. Burnout in Nurse Faculty: Relationships with Management Style, Collegial Support, and Work Load in Collegiate Programs.

    Science.gov (United States)

    Dick, Margaret Jorgensen

    1986-01-01

    A study of the relationship of management behavior of the dean, collegial support, and workload to burnout among faculty in collegiate nursing programs found that collegial support, positive feedback from the dean, and a participatory management style are more important for protecting faculty against burnout than attention to workload. (MSE)

  5. Collegiality in Business Schools: Development of a Collegiality Measure and Evaluations of its Implications

    Science.gov (United States)

    Miles, Morgan P.; Shepherd, C. David; Rose, Jacob M.; Dibben, Mark

    2015-01-01

    Purpose: While collegiality is often discussed and touted as a critical aspect of academia, there is little research that empirically examines collegiality in university business schools. One cause of the paucity of research is the lack of a reliable scale to measure collegiality (Sabharwal, 2011). The purpose of this paper is to develop a scale…

  6. Bebop on the Hockey pitch: Cross-disciplinary creativity and skills transfer

    Directory of Open Access Journals (Sweden)

    Clive Maxwell Harrison

    2016-02-01

    Full Text Available This paper generalises task-specific (but dissimilar skills, from the jazz concert stage and from the hockey field, into the domain of creativity research. What is sought are clues to what skills or creativities are transferable across dissimilar domains. It is argued that certain domain-general skills are transferable across domains, but a domain-general or ‘c’ creative capacity, is not. Rather than transferring some over-arching capacity to be universally creative, this research highlights factors likely to facilitate successful cross-disciplinary creative expression and posits a correlation between the capacities for discriminant pattern-recognition, task-specific expertise, and sensory data-collection, and the transferability of creativity. Of particular significance is the capacity for informed, selective pattern-breaking based on the ‘depth’ or ‘insider’ perspective of the domain expert; such ‘expert variation and selective retention’ (EVSR provides creative choices and responses that are likely to be perceived by the field as creative: valuable, novel and surprising. The author is a renowned Australian studio bassist, jazz musician, and music educator who also plays field hockey for Australia at Masters level. His recently completed PhD thesis, based on a performance and composition career spanning 46 years, takes the form of an analytical autoethnography drawn from personal field notes, diaries and interviews as well as published record albums.

  7. Bebop on the Hockey Pitch: Cross-Disciplinary Creativity and Skills Transfer.

    Science.gov (United States)

    Harrison, Clive M

    2016-01-01

    This paper generalizes task-specific (but dissimilar) skills, from the jazz concert stage and from the hockey field, into the domain of creativity research. What is sought are clues to what skills or creativities are transferable across dissimilar domains. It is argued that certain domain-general skills are transferable across domains, but a domain-general or 'c' creative capacity, is not. Rather than transferring some over-arching capacity to be universally creative, this research highlights factors likely to facilitate successful cross-disciplinary creative expression and posits a correlation between the capacities for discriminant pattern-recognition, task-specific expertise, and sensory data-collection, and the transferability of creativity. Of particular significance is the capacity for informed, selective pattern-breaking based on the 'depth' or 'insider' perspective of the domain expert; such 'expert variation and selective retention' provides creative choices and responses that are likely to be perceived by the field as creative: valuable, novel and surprising. The author is a renowned Australian studio bassist, jazz musician, and music educator who also plays field hockey for Australia at Masters level. His recently completed Ph.D. thesis, based on a performance and composition career spanning 46 years, takes the form of an analytical autoethnography drawn from personal field notes, diaries and interviews as well as published record albums.

  8. Social Problems in Canadian Ice Hockey: An Exploration Through Film

    Directory of Open Access Journals (Sweden)

    Fogel Curtis A.

    2014-12-01

    Full Text Available While celebrated as a highly popular sport in Canada, there are many social problems existing within and around Canadian ice hockey. These problems are often overlooked and rarely depicted in academic and journalistic research on sport. These social problems include, but are not limited to: extreme violence resulting in injuries and death, hazing rituals, multiple types of sexual violence, drug abuse, financial corruption, as well as various forms of prejudice and discrimination. Prompted by pop-cultural depictions in films, this paper further identifies and explores social problems in Canadian ice hockey revealing the realism embedded within various seemingly fictional films.

  9. 38 CFR 21.4273 - Collegiate graduate.

    Science.gov (United States)

    2010-07-01

    ... the provisions of § 21.4272 or the graduate school's assessment of training time, whichever will... 38 Pensions, Bonuses, and Veterans' Relief 2 2010-07-01 2010-07-01 false Collegiate graduate. 21... Pursuit of Courses § 21.4273 Collegiate graduate. (a) In residence. (1) The Department of Veterans...

  10. Is Collegiality a Weapon or a Shield?

    Science.gov (United States)

    Cipriano, Robert E.; Buller, Jeffrey L.

    2017-01-01

    There are two primary means to prevent the abuse of collegiality and transform it into a shield to protect the most vulnerable. First, colleges and universities should follow the examples of their peers by developing clear definitions of what types of behavior constitute collegiality and what types of activity are protected as academic freedom or…

  11. Collegiate Mathematics Teaching: An Unexamined Practice

    Science.gov (United States)

    Speer, Natasha M.; Smith, John P., III; Horvath, Aladar

    2010-01-01

    Though written accounts of collegiate mathematics teaching exist (e.g., mathematicians' reflections and analyses of learning and teaching in innovative courses), research on collegiate teachers' actual classroom teaching practice is virtually non-existent. We advance this claim based on a thorough review of peer-reviewed journals where scholarship…

  12. Predicting Undergraduate Music Education Majors' Collegiate Achievement

    Science.gov (United States)

    Rohwer, Debbie

    2012-01-01

    In order for teachers to guide students in their preparation to be music majors, it would be useful to know those musical components that best predict overall collegiate success. The purpose of this study was to measure the relationship of predictor variables (Lessons, Music History, Music Theory, and Piano) to collegiate grade point average (GPA)…

  13. Collegiate Mathematics Teaching: An Unexamined Practice

    Science.gov (United States)

    Speer, Natasha M.; Smith, John P., III; Horvath, Aladar

    2010-01-01

    Though written accounts of collegiate mathematics teaching exist (e.g., mathematicians' reflections and analyses of learning and teaching in innovative courses), research on collegiate teachers' actual classroom teaching practice is virtually non-existent. We advance this claim based on a thorough review of peer-reviewed journals where scholarship…

  14. Predictors of postconcussion syndrome in collegiate student-athletes.

    Science.gov (United States)

    Zuckerman, Scott L; Yengo-Kahn, Aaron M; Buckley, Thomas A; Solomon, Gary S; Sills, Allen K; Kerr, Zachary Y

    2016-04-01

    OBJECTIVE Sport-related concussion (SRC) has emerged as a public health problem, especially among student-athletes. Whereas most concussions resolve by 2 weeks, a minority of patients experience postconcussion syndrome (PCS), in which symptoms persist for months. The objective of this study was to elucidate factors predictive of PCS among a sample of National Collegiate Athletic Association (NCAA) student-athletes in the academic years 2009-2010 to 2014-2015. METHODS The SRC data originated from the NCAA Injury Surveillance Program (ISP) in the 2009-2010 to 2014-2015 academic seasons. The NCAA ISP is a prospective database made up of a convenience sample of schools across all divisions. All SRCs are reported by certified athletic trainers. The PCS group consisted of concussed student-athletes with concussion-related symptoms that lasted ≥ 4 weeks. The non-PCS group consisted of concussed student-athletes with symptom resolution in ≤ 2 weeks. Those with symptoms that resolved in the intermediate area of 2-4 weeks were excluded. Odds ratios (ORs) were estimated using logistic regression. RESULTS During the 2009-2010 to 2014-2015 seasons, 1507 NCAA student-athletes sustained an SRC, 112 (7.4%) of whom developed PCS (i.e., concussion-related symptoms that lasted ≥ 4 weeks). Men's ice hockey contributed the largest proportion of concussions to the PCS group (28.6%), whereas men's football contributed the largest proportion of concussions in the non-PCS group (38.6%). In multivariate analysis, recurrent concussion was associated with increased odds of PCS (OR 2.08, 95% CI 1.28-3.36). Concussion symptoms that were also associated with increased odds of PCS included retrograde amnesia (OR 2.75, 95% CI 1.34-5.64), difficulty concentrating (OR 2.35, 95% CI 1.23-4.50), sensitivity to light (OR 1.97, 95% CI 1.09-3.57), and insomnia (OR 2.19, 95% CI 1.30-3.68). Contact level, sex, and loss of consciousness were not associated with PCS. CONCLUSIONS Postconcussion syndrome

  15. Isokinetic testing and analysis of flexor-extensor muscle of the knee joint of women field hockey athletes%女子曲棍球运动员膝关节屈伸肌群等速测试与分析

    Institute of Scientific and Technical Information of China (English)

    曹峰锐; 邹亮畴; 彭森

    2011-01-01

    BACKGROUND: In recent years, isokinetic test has been widely used by scientific research personnel to evaluate the strengthcharacter of athletes of different sport events. However, there are few reports describing the characteristics of the field hockeyplayer by isokinetic test.OBJECTIVE: This study tested the flexor and extensor torque of the knee joint of women field hockey athletes from Guangdongprovince to provide some results for the training of sport teams and scientific research.METHODS: The flexor and extensor torque of knee joint of 14 women field hockey athletes from Guangdong province wasperformed isokinetic test using CON-TREX isokinetic testing machine. Detection indices include peak torque/body weight, peaktorgue ratio of hamstring to quadriceps, average power, total work and fatigue index.RESULTS AND CONCLUSION: Under the testing velocity of 60° per second, the peak torque/body weight values of extensorwere significantly greater than those of the flexor (P < 0.01). Under three different velocities, the hamstring/quadriceps ratio of theleft knee joint was 66%-77%, and the ratio of the right knee joint was 82%-88%. The average power of the extensor of left kneejoint was significantly greater than that of the flexor (P < 0.01). The total work of the extensor of the left and right flexor wassignificantly greater than that of the flexor (P < 0.01). The fatigue index of extensor and flexor of the knee joint was 0.24-0.48.The most strength of knee joint extensor was greater than that of the flexor. The peak torgue ratio of hamstring to quadriceps ofthe left knee joint was slightly low at 240°/s, while the peak torgue ratio of hamstring to quadriceps of the right knee joint wasslightly high at low speed. The results showed that the speed strength of the left knee joint of the women field hockey athleteswas slightly low, the maximum strength of the right knee joint extensor was relatively low, the speed strength of the extensor wasgreater than

  16. Multiple Off-Ice Performance Variables Predict On-Ice Skating Performance in Male and Female Division III Ice Hockey Players

    Directory of Open Access Journals (Sweden)

    effrey M. Janot, Nicholas M. Beltz, Lance D. Dalleck

    2015-09-01

    Full Text Available The purpose of this study was to determine if off-ice performance variables could predict on-ice skating performance in Division III collegiate hockey players. Both men (n = 15 and women (n = 11 hockey players (age = 20.5 ± 1.4 years participated in the study. The skating tests were agility cornering S-turn, 6.10 m acceleration, 44.80 m speed, modified repeat skate, and 15.20 m full speed. Off-ice variables assessed were years of playing experience, height, weight and percent body fat and off-ice performance variables included vertical jump (VJ, 40-yd dash (36.58m, 1-RM squat, pro-agility, Wingate peak power and peak power percentage drop (% drop, and 1.5 mile (2.4km run. Results indicated that 40-yd dash (36.58m, VJ, 1.5 mile (2.4km run, and % drop were significant predictors of skating performance for repeat skate (slowest, fastest, and average time and 44.80 m speed time, respectively. Four predictive equations were derived from multiple regression analyses: 1 slowest repeat skate time = 2.362 + (1.68 x 40-yd dash time + (0.005 x 1.5 mile run, 2 fastest repeat skate time = 9.762 - (0.089 x VJ - (0.998 x 40-yd dash time, 3 average repeat skate time = 7.770 + (1.041 x 40-yd dash time - (0.63 x VJ + (0.003 x 1.5 mile time, and 4 47.85 m speed test = 7.707 - (0.050 x VJ - (0.01 x % drop. It was concluded that selected off-ice tests could be used to predict on-ice performance regarding speed and recovery ability in Division III male and female hockey players.

  17. Position Statement. Violence and injury in ice hockey.

    Science.gov (United States)

    Juhn, Mark S; Brolinson, Per Gunnar; Duffey, Timothy; Stockard, Alan; Vangelos, Zenos A; Emaus, Erik; Maddox, Matthew; Boyajian, Lori; Henehan, Michael

    2002-01-01

    Ice hockey is a sport enjoyed by many men and women at the spectator and participant level. It is played with high intensity and often involves body contact. Although the women's games is far from injury free, it is the men's game that has drawn criticism for excessive violence. Much attention has been drawn to the serious injuries that have occurred in ice hockey, specifically spinal injuries, concussions, and eye injuries. Many such injuries are the result of illegal and violent acts such as checking from behind or a deliberate high stick. Because of this, some medical organizations have called for changes in the sport, such as minimum age requirements for body-checking. As a practical matter such changes are unlikely to be accepted by hockey governing boards. Many of those involved in the sport consider body-checking a fundamental component of the game. Furthermore, a distinction needs to be made between any kind of injury and a serious, catastrophic injury. For example, although a recent study found that body-checking accounted for up to 38% of ice hockey injuries, none were of the catastrophic type. With respect to catastrophic injuries such as spinal cord trauma or a blinded eye, legal body-checking accounts for significantly less than illegal body-checking (e.g., checking from behind) or violent stick work. To reduce serious injury in ice hockey, we offer 10 recommendations, key among them automatic game suspensions for certain rules violations, and recognition of the coach as the most important figure in promoting a clean, safe game.

  18. Epidemiology of Hip Flexor and Hip Adductor Strains in National Collegiate Athletic Association Athletes, 2009/2010-2014/2015

    DEFF Research Database (Denmark)

    Eckard, Timothy G; Padua, Darin A; Dompier, Thomas P

    2017-01-01

    restriction time were examined. Injury rate ratios (IRRs) and proportion ratios were calculated to compare rates within and between sports by event type, sex, mechanism, recurrence, and participation restriction time. RESULTS: A total of 770 hip flexor and 621 hip adductor strains were reported, resulting...... sports teams, especially soccer and ice hockey, should place an emphasis on prevention programs for hip adductor strains. Secondary prevention programs involving thorough rehabilitation and strict return-to-play criteria should be developed and implemented to curb the high recurrence rate....../2010-2014/2015 academic years. STUDY DESIGN: Descriptive epidemiology study. METHODS: Rates and patterns of hip flexor and adductor strains in collegiate sports were examined in a convenience sample of NCAA varsity teams from 25 sports. Rates and distributions of strains by mechanism, recurrence, and participation...

  19. Collegiality in education: a case study

    African Journals Online (AJOL)

    Erna Kinsey

    load is more equitable and that teachers have been prepared to take on additional responsibilities. ..... Exploring collegiality: theory, process and structure in managing schools. ... Cognitive coaching: A foundation for renaissance schools.

  20. Aerobic Development of Elite Youth Ice Hockey Players.

    Science.gov (United States)

    Leiter, Jeff R; Cordingley, Dean M; MacDonald, Peter B

    2015-11-01

    Ice hockey is a physiologically complex sport requiring aerobic and anaerobic energy metabolism. College and professional teams often test aerobic fitness; however, there is a paucity of information regarding aerobic fitness of elite youth players. Without this knowledge, training of youth athletes to meet the standards of older age groups and higher levels of hockey may be random, inefficient, and or effective. Therefore, the purpose of this study was to determine the aerobic fitness of elite youth hockey players. A retrospective database review was performed for 200 male AAA hockey players between the ages of 13 and 17 (age, 14.4 ± 1.2 years; height, 174.3 ± 8.5 cm; body mass, 67.2 ± 11.5 kg; body fat, 9.8 ± 3.5%) before the 2012-13 season. All subjects performed a graded exercise test on a cycle ergometer, whereas expired air was collected by either a Parvo Medics TrueOne 2400 or a CareFusion Oxycon Mobile metabolic cart to determine maximal oxygen consumption (V[Combining Dot Above]O2max). Body mass, absolute V[Combining Dot Above]O2max, and the power output achieved during the last completed stage increased in successive age groups from age 13 to 15 years (p ≤ 0.05). Ventilatory threshold (VT) expressed as a percentage of V[Combining Dot Above]O2max and the heart rate (HR) at which VT occurred decreased between the ages of 13 and 14 years (p ≤ 0.05), whereas the V[Combining Dot Above]O2 at which VT occurred increased from the age of 14-15 years. There were no changes in relative V[Combining Dot Above]O2max or HRmax between any successive age groups. The aerobic fitness levels of elite youth ice hockey players increased as players age and mature physically and physiologically. However, aerobic fitness increased to a lesser extent at older ages. This information has the potential to influence off-season training and maximize the aerobic fitness of elite amateur hockey players, so that these players can meet standards set by advanced elite age groups.

  1. Collegiality: Leading Us into Fantasy--the Paradoxical Resilience of Collegiality in Academic Leadership

    Science.gov (United States)

    Kligyte, Giedre; Barrie, Simon

    2014-01-01

    It has been argued that leadership in higher education differs from leadership in other organisational contexts, in part because of the culture of collegiality and autonomy underpinning academic work. Collegiality, however, is a complex and somewhat "slippery" idea that features in academic leadership literature in a variety of,…

  2. Effects of multiple concussions on retired national hockey league players.

    Science.gov (United States)

    Caron, Jeffrey G; Bloom, Gordon A; Johnston, Karen M; Sabiston, Catherine M

    2013-04-01

    The purpose of this study was to understand the meanings and lived experiences of multiple concussions in professional hockey players using hermeneutic, idiographic, and inductive approaches within an interpretative phenomenological analysis. The interviewer was an athlete who had suffered multiple concussions, and the interviewees were five former National Hockey League athletes who had retired due to medically diagnosed concussions suffered during their careers. The men discussed the physical and psychological symptoms they experienced as a result of their concussions and how the symptoms affected their professional careers, personal relationships, and quality of life. The former professional athletes related these symptoms to the turmoil that is ever present in their lives. These findings are of interest to athletes, coaches, sport administrators, family members, sport psychology practitioners, and medical professionals, as they highlight the severity of short- and long-term effects of concussions.

  3. A Vision Training Program's Impact on Ice Hockey Performance

    Directory of Open Access Journals (Sweden)

    Alison Jenerou, OD

    2015-04-01

    Full Text Available Background: This study was carried out to determine whether a preseason vision training program would improve visual skills and season success in a Division I men’s ice hockey team. Methods: A six-week vision training program was implemented with the Ferris State University Men’s Ice Hockey team during their pre-season workouts. Vision training incorporated binocular and accommodative training along with dynamic visual skills training. Results: The study showed an improvement in base out vergence ranges, binocular accommodative facility, and Wayne Saccadic Fixator (WSF scores and was viewed by players to have made a positive impact on their individual performance. The pre- and post vision training goals, shots on goal, and shooting percentage all significantly improved following training. Conclusion: The vision training program during preseason workouts had a positive impact on the players’ visual skills important for hockey. The players’ perception of their vision and how they were using their vision during competitive play also showed a significant change. The majority of the players felt that vision training was an effective use of their practice time allotted by the NCAA.

  4. SnapShot: Visualization to Propel Ice Hockey Analytics.

    Science.gov (United States)

    Pileggi, H; Stolper, C D; Boyle, J M; Stasko, J T

    2012-12-01

    Sports analysts live in a world of dynamic games flattened into tables of numbers, divorced from the rinks, pitches, and courts where they were generated. Currently, these professional analysts use R, Stata, SAS, and other statistical software packages for uncovering insights from game data. Quantitative sports consultants seek a competitive advantage both for their clients and for themselves as analytics becomes increasingly valued by teams, clubs, and squads. In order for the information visualization community to support the members of this blossoming industry, it must recognize where and how visualization can enhance the existing analytical workflow. In this paper, we identify three primary stages of today's sports analyst's routine where visualization can be beneficially integrated: 1) exploring a dataspace; 2) sharing hypotheses with internal colleagues; and 3) communicating findings to stakeholders.Working closely with professional ice hockey analysts, we designed and built SnapShot, a system to integrate visualization into the hockey intelligence gathering process. SnapShot employs a variety of information visualization techniques to display shot data, yet given the importance of a specific hockey statistic, shot length, we introduce a technique, the radial heat map. Through a user study, we received encouraging feedback from several professional analysts, both independent consultants and professional team personnel.

  5. Hockey Stick Phenomenon: Supply Chain Management Challenge in Brazil

    Directory of Open Access Journals (Sweden)

    Lars Meyer Sanches

    2014-07-01

    Full Text Available The objective of this study is to investigate a phenomenon that occurs in Brazil, specifically the spike in demand at the end of the sales period, known as the hockey stick phenomenon. This analysis will encompass the causes as well as the impacts of this phenomenon, in a way that allows alternative policies to be evaluated. Data was collected from a Brazilian branch of a large multinational in the non-durable consumer goods industry and in semi-structured interviews conducted face-to-face with executives of 26 clients. The data was used to generate a continuous simulation model based on the methods of systems dynamics. The findings showed that the phenomenon negatively impacted the manufacturer’s financial performance in the long term and indicated required changes necessary to remediate the phenomenon. This is an empirical study on the hockey stick phenomenon, a problem that affects diverse companies in Brazil. The study showed that companies should not assume the hockey stick phenomenon to be an exogenous problem; it showed that there are policies able to improve financial performance; and it provided ideas regarding ways to carry out the change process.

  6. Is hockey just a game? Contesting meanings of the ice hockey life projects through a career-threatening injury.

    Science.gov (United States)

    Ronkainen, Noora J; Ryba, Tatiana V

    2017-05-01

    This study is situated within an existential-narrative theoretical framework to examine the impact of career-threatening injury on professional ice hockey players' well-being and career construction. Professional ice hockey culture is construed as a privileged space characterised by hegemonic masculinity, fierce competition as well as high-risk behaviours often resulting in sports injuries. In this paper, we analyse two players' life stories with a particular focus on injury as a boundary situation involving social and temporal breakdown and re-evaluation of meaning of sporting life projects. Emergent narratives surrounding existential themes of loss of meaning and loneliness in the face of injury were analysed in connection with players' search for authenticity and realignment with self-concept. Each player developed resistant narratives to the dominant ethos of professional sport in order to restore well-being and sense of self. The relational aspects of injury are highlighted in practical recommendations.

  7. Evaluation, management and prevention of lower extremity youth ice hockey injuries

    Directory of Open Access Journals (Sweden)

    Popkin CA

    2016-11-01

    Full Text Available Charles A Popkin,1 Brian M Schulz,2 Caroline N Park,1 Thomas S Bottiglieri,1 T Sean Lynch1 1Department of Orthopedic Surgery, Center for Shoulder, Elbow and Sports Medicine at Columbia University, New York, NY, 2Kerlan‑Jobe Orthopedic Clinic, Los Angeles, CA, USA Abstract: Ice hockey is a fast-paced sport played by increasing numbers of children and adolescents in North America and around the world. Requiring a unique blend of skill, finesse, power and teamwork, ice hockey can become a lifelong recreational activity. Despite the rising popularity of the sport, there is ongoing concern about the high frequency of musculoskeletal injury associated with participation in ice hockey. Injury rates in ice hockey are among the highest in all competitive sports. Numerous research studies have been implemented to better understand the risks of injury. As a result, rule changes were adopted by the USA Hockey and Hockey Canada to raise the minimum age at which body checking is permitted to 13–14 years (Bantam level from 11–12 years (Pee Wee. Continuing the education of coaches, parents and players on rules of safe play, and emphasizing the standards for proper equipment use are other strategies being implemented to make the game safer to play. The objective of this article was to review the evaluation, management and prevention of common lower extremity youth hockey injuries. Keywords: youth hockey, body checking, injury prevention, femoroacetabular impingement, apophyseal avulsions

  8. Self-appraisal of hockey players of high class of different playing position

    Directory of Open Access Journals (Sweden)

    Oleksiy Mikhnov

    2014-12-01

    Full Text Available Purpose: to expose the features of display of self-appraisal for the hockey players of high class of different playing position. Material and Methods: for the exposure of level of self-appraisal for hockey players, information of sportsmen of high class, taking part in the matches of the Kontinental hockey league (KHL in a season 2013–2014 was probed sixteen hockey players, having a sporting digit MS and MSWC, took part in researches. Methods were used: pedagogical supervision, pedagogical analysis and generalization of front-rank experience, psychological testing, analysis of data of the special scientific-methodical literature, expert questioning, an analysis of data is the Internet. Results: findings allowed to set that the players of line of attack (central and extreme forward have more high level of self-appraisal for certain, than players of defence and hockey goalkeepers. This tendency is looked over both on the separate constituents of self-appraisal and on the whole on all spectrums of the studied indexes. The got results of researches rotined that the hockey players of high class had or middle or high level of self-appraisal. Among testable hockey players, players were not exposed with the low level of self-appraisal. Conclusions: the exposed distinctions in the level of self-appraisal of hockey players of high class can be used for diagnostics of playing predisposition and choice of playing line of business in a command.

  9. Safe-Play Knowledge, Aggression, and Head-Impact Biomechanics in Adolescent Ice Hockey Players.

    Science.gov (United States)

    Schmidt, Julianne D; Pierce, Alice F; Guskiewicz, Kevin M; Register-Mihalik, Johna K; Pamukoff, Derek N; Mihalik, Jason P

    2016-05-01

    Addressing safe-play knowledge and player aggression could potentially improve ice hockey sport safety. To compare (1) safe-play knowledge and aggression between male and female adolescent ice hockey players and (2) head-impact frequency and severity between players with high and low levels of safe-play knowledge and aggression during practices and games. Cohort study. On field. Forty-one male (n = 29) and female (n = 12) adolescent ice hockey players. Players completed the Safe Play Questionnaire (0 = less knowledge, 7 = most knowledge) and Competitive Aggressiveness and Anger Scale (12 = less aggressive, 60 = most aggressive) at midseason. Aggressive penalty minutes were recorded throughout the season. The Head Impact Telemetry System was used to capture head-impact frequency and severity (linear acceleration [g], rotational acceleration [rad/s(2)], Head Impact Technology severity profile) at practices and games. One-way analyses of variance were used to compare safe play knowledge and aggression between sexes. Players were categorized as having high or low safe-play knowledge and aggression using a median split. A 2 × 2 mixed-model analysis of variance was used to compare head-impact frequency, and random-intercept general linear models were used to compare head-impact severity between groups (high, low) and event types (practice, game). Boys (5.8 of 7 total; 95% confidence interval [CI] = 5.3, 6.3) had a trend toward better safe-play knowledge compared with girls (4.9 of 7 total; 95% CI = 3.9, 5.9; F1,36 = 3.40, P = .073). Less aggressive male players sustained significantly lower head rotational accelerations during practices (1512.8 rad/s (2) , 95% CI = 1397.3, 1637.6 rad/s(2)) versus games (1754.8 rad/s (2) , 95% CI = 1623.9, 1896.2 rad/s(2)) and versus high-aggression players during practices (1773.5 rad/s (2) , 95% CI = 1607.9, 1956.3 rad/s (2) ; F1,26 = 6.04, P = .021). Coaches and sports medicine professionals should ensure that athletes of all levels

  10. Research in collegiate mathematics education VII

    CERN Document Server

    Hitt, Fernando; Thompson, Patrick W

    2010-01-01

    The present volume of Research in Collegiate Mathematics Education, like previous volumes in this series, reflects the importance of research in mathematics education at the collegiate level. The editors in this series encourage communication between mathematicians and mathematics educators, and as pointed out by the International Commission of Mathematics Instruction (ICMI), much more work is needed in concert with these two groups. Indeed, editors of RCME are aware of this need and the articles published in this series are in line with that goal. Nine papers constitute this volume. The first

  11. Research in collegiate mathematics education V

    CERN Document Server

    Selden, Annie; Harel, Guershon; Hitt, Fernando

    2003-01-01

    This fifth volume of Research in Collegiate Mathematics Education presents state-of-the-art research on understanding, teaching, and learning mathematics at the post-secondary level. The articles in RCME are peer-reviewed for two major features: (1) advancing our understanding of collegiate mathematics education, and (2) readability by a wide audience of practicing mathematicians interested in issues affecting their own students. This is not a collection of scholarly arcana, but a compilation of useful and informative research regarding the ways our students think about and learn mathematics.

  12. Research in collegiate mathematics education VI

    CERN Document Server

    Selden, Annie; Harel, Guershon; Hauk, Shandy

    2006-01-01

    The sixth volume of Research in Collegiate Mathematics Education presents state-of-the-art research on understanding, teaching, and learning mathematics at the postsecondary level. The articles advance our understanding of collegiate mathematics education while being readable by a wide audience of mathematicians interested in issues affecting their own students. This is a collection of useful and informative research regarding the ways our students think about and learn mathematics. The volume opens with studies on students' experiences with calculus reform and on the effects of concept-based

  13. ANÁLISIS DE LA ACCIÓN DE GOL EN EL PORTERO DE HOCKEY HIERBA

    Directory of Open Access Journals (Sweden)

    J. Sampedro

    2010-09-01

    Full Text Available

     

    RESUMEN

    El objetivo fundamental del estudio es analizar el rendimiento del portero de hockey hierba, desde la perspectiva del número de goles encajados en función de la zona de tiro y del lugar por donde entra el lanzamiento. Se analizó una muestra de 278 lanzamientos a portería que acabaron en gol, marcados a 30 porteros/as de nivel internacional de selecciones nacionales absolutas. La técnica de recogida de datos empleada fue la observación sistemática utilizando para ello la base de datos OBANGOHH (Piñeiro, 2006. Los resultados obtenidos determinan que la zona de la tabla, la zona izquierda de la portería, la zona GIT, y el poste largo, son “puntos débiles” del portero/a. Los porteros/as tienen mayores o menores probabilidades de encajar gol dependiendo de la zona del área desde la que tira el delantero y la zona de portería por la que entra el lanzamiento. Además existen diferencias significativas en relación al género del portero. El nivel de significación establecido fue del 95% (p<0,05.
    Palabras Clave: hockey hierba, rendimiento, portero, gol.

     

    ABSTRACT

    The main aim of the study is to analyze the performance of field hockey goalkeeper, from the perspective of the number of goals achieved depending on the zone of shot and of the place where the throwing was goal. 278 shots on goal scored to different goalkeepers of international level of senior national teams were analyzed. According to Piñeiro (2006, the technique of collection of the data used was the systematic observation; using for it the notational data base OBANGOFH. The obtained results determine that the side-boards and back-boards zone, the left zone of the goal, the zone

  14. THE COMPETITIVE DEMANDS OF ELITE MALE RINK HOCKEY

    Directory of Open Access Journals (Sweden)

    Aladino Fernández

    2013-06-01

    Full Text Available The aim of this study was to simulate the activity pattern of rink hockey by designing a specific skate test (ST to study the energy expenditure and metabolic responses to this intermittent high-intensity exercise and extrapolate the results from the test to competition. Six rink hockey players performed, in three phases, the 20-metre multi-stage shuttle roller skate test, a tournament match and the ST. Heart rate was monitored in all three phases. Blood lactate, oxygen consumption, ventilation and respiratory exchange ratio were also recorded during the ST. Peak HR was 190.7±7.2 beats · min-1. There were no differences in peak HR between the three tests. Mean HR was similar between the ST and the match (86% and 87% of HRmax, respectively. Peak and mean ventilation averaged 111.0±8.8 L · min-1 and 70.3±14.0 L · min-1 (60% of VEmax, respectively. VO2max was 56.3±8.4 mL · kg-1 · min-1, and mean oxygen consumption was 40.9±7.9 mL · kg-1 · min-1 (70% of VO2max. Maximum blood lactate concentration was 7.2±1.3 mmol · L-1. ST yielded an energy expenditure of 899.1±232.9 kJ, and energy power was 59.9±15.5 kJ · min-1. These findings suggest that the ST is suitable for estimating the physiological demands of competitive rink hockey, which places a heavy demand on the aerobic and anaerobic systems, and requires high energy consumption.

  15. Effect of head impacts on diffusivity measures in a cohort of collegiate contact sport athletes

    Science.gov (United States)

    Ford, James C.; Flashman, Laura A.; Maerlender, Arthur; Greenwald, Richard M.; Beckwith, Jonathan G.; Bolander, Richard P.; Tosteson, Tor D.; Turco, John H.; Raman, Rema; Jain, Sonia

    2014-01-01

    Objective: To determine whether exposure to repetitive head impacts over a single season affects white matter diffusion measures in collegiate contact sport athletes. Methods: A prospective cohort study at a Division I NCAA athletic program of 80 nonconcussed varsity football and ice hockey players who wore instrumented helmets that recorded the acceleration-time history of the head following impact, and 79 non–contact sport athletes. Assessment occurred preseason and shortly after the season with diffusion tensor imaging and neurocognitive measures. Results: There was a significant (p = 0.011) athlete-group difference for mean diffusivity (MD) in the corpus callosum. Postseason fractional anisotropy (FA) differed (p = 0.001) in the amygdala (0.238 vs 0.233). Measures of head impact exposure correlated with white matter diffusivity measures in several brain regions, including the corpus callosum, amygdala, cerebellar white matter, hippocampus, and thalamus. The magnitude of change in corpus callosum MD postseason was associated with poorer performance on a measure of verbal learning and memory. Conclusion: This study suggests a relationship between head impact exposure, white matter diffusion measures, and cognition over the course of a single season, even in the absence of diagnosed concussion, in a cohort of college athletes. Further work is needed to assess whether such effects are short term or persistent. PMID:24336143

  16. The Ethics of the Collegiate Locker Room

    Science.gov (United States)

    Roper, Larry D.

    2017-01-01

    Locker rooms are a fixture in the athletic culture of colleges and universities. Given the important roles those spaces play in the learning, growth, and development of student-athletes, collegiate leaders should consider how to influence locker room environments in positive ways.

  17. Integrating Collegiate Sports into Social Work Education

    Science.gov (United States)

    Gill, Emmett L., Jr.

    2014-01-01

    Every week there is a national news story involving a collegiate student-athlete, and oftentimes the tale relates to a social work education issue. There are 731 social work programs, yet none offers coursework in student-athlete behavior and their environment. Student-athletes experience the same developmental challenges as nonathletes, and…

  18. Intrinsic and Extrinsic Motivation among Collegiate Instrumentalists

    Science.gov (United States)

    Diaz, Frank M.

    2010-01-01

    The purpose of this study was to gather and compare information on measures of intrinsic and extrinsic motivation among instrumentalists enrolled in collegiate ensembles. A survey instrument was developed to gather information concerning demographic data and responses to questions on motivational preference. Participants were undergraduate and…

  19. Intrinsic and Extrinsic Motivation among Collegiate Instrumentalists

    Science.gov (United States)

    Diaz, Frank M.

    2010-01-01

    The purpose of this study was to gather and compare information on measures of intrinsic and extrinsic motivation among instrumentalists enrolled in collegiate ensembles. A survey instrument was developed to gather information concerning demographic data and responses to questions on motivational preference. Participants were undergraduate and…

  20. A Pioneer of Collegiate Women's Sports

    Science.gov (United States)

    Lum, Lydia

    2008-01-01

    This article features North Carolina State University's Kay Yow, a pioneer of collegiate women's sports. An Olympic gold medal champion whose entire coaching career has been spent in her home state of North Carolina, Yow has amassed a remarkable lifetime win-loss record of 729-337. She is one of only six coaches to have won at least 700 career…

  1. Violence in Canadian amateur hockey: the experience of referees in Ontario.

    Science.gov (United States)

    Ackery, Alun D; Tator, Charles H; Snider, Carolyn

    2012-03-01

    To determine the perceptions and roles of referees about violence and injury in hockey games. Questionnaire. Web-based survey. We contacted referees across Canada from various leagues and all levels of play, with the majority of respondents from Ontario (92%). We gathered demographic information anonymously and posed questions on aggression and experience in hockey games. The majority of referees (n = 632) indicated that violence is a serious concern to both players and referees at all levels of hockey. More than 90% of referees responded that they were the recipients of aggression and anger (92.1%, 95% confidence interval, 90.0-94.2), 55% had been involved in hockey games where aggressive behavior resulted in the referee losing control of the game, and 71% said that this increased aggression leads to injury. Referees' opinions are that the coach is the most responsible for managing on-ice safety (63%). To improve hockey safety, referees suggest education and more rigorous enforcement of discipline for all participants. Referees are important for hockey safety and need to be appropriately supported. Referees believe that increased aggression can lead to injury and that rules need to be enforced more diligently. Referees recommend that increased education about safety is needed to guide parents, coaches, and players to make hockey safer.

  2. Morphological, Physiological and Skating Performance Profiles of Male Age-Group Elite Ice Hockey Players

    Directory of Open Access Journals (Sweden)

    Allisse Maxime

    2017-08-01

    Full Text Available The purpose of this study was to describe the evolution of morphological, physiological and skating performance profiles of elite age-group ice hockey players based on repeated measures spread over one season. In addition, the results of fitness tests and training programs performed in off-ice conditions and their relationship with skating performance were analyzed. Eighteen high level age-group ice hockey players (13.1 ± 0.6 years were assessed off and on-ice at the beginning and at the end of the hockey season. A third evaluation was also conducted at the beginning of the following hockey season. The players were taller, heavier, and showed bone breadths and muscle girths above the reference population of the same age. Muscular variables improved significantly during and between the two hockey seasons (p < 0.05. However, maximal aerobic power improved only during the off-season. All skating performance tests exhibited significant enhancements during the hockey season, but not during the off-season where some degradation was observed. Finally, weak observed variances (generally <20% of the explained variance between physiological variables measured off-ice and on-ice skating performance tests indicated important gaps, both in the choice of the off-ice assessment tools as well as in training methods conventionally used. The reflection on the best way to assess and train hockey players certainly deserves to be continued.

  3. Evaluation, management and prevention of lower extremity youth ice hockey injuries.

    Science.gov (United States)

    Popkin, Charles A; Schulz, Brian M; Park, Caroline N; Bottiglieri, Thomas S; Lynch, T Sean

    2016-01-01

    Ice hockey is a fast-paced sport played by increasing numbers of children and adolescents in North America and around the world. Requiring a unique blend of skill, finesse, power and teamwork, ice hockey can become a lifelong recreational activity. Despite the rising popularity of the sport, there is ongoing concern about the high frequency of musculoskeletal injury associated with participation in ice hockey. Injury rates in ice hockey are among the highest in all competitive sports. Numerous research studies have been implemented to better understand the risks of injury. As a result, rule changes were adopted by the USA Hockey and Hockey Canada to raise the minimum age at which body checking is permitted to 13-14 years (Bantam level) from 11-12 years (Pee Wee). Continuing the education of coaches, parents and players on rules of safe play, and emphasizing the standards for proper equipment use are other strategies being implemented to make the game safer to play. The objective of this article was to review the evaluation, management and prevention of common lower extremity youth hockey injuries.

  4. Evaluation, management and prevention of lower extremity youth ice hockey injuries

    Science.gov (United States)

    Popkin, Charles A; Schulz, Brian M; Park, Caroline N; Bottiglieri, Thomas S; Lynch, T Sean

    2016-01-01

    Ice hockey is a fast-paced sport played by increasing numbers of children and adolescents in North America and around the world. Requiring a unique blend of skill, finesse, power and teamwork, ice hockey can become a lifelong recreational activity. Despite the rising popularity of the sport, there is ongoing concern about the high frequency of musculoskeletal injury associated with participation in ice hockey. Injury rates in ice hockey are among the highest in all competitive sports. Numerous research studies have been implemented to better understand the risks of injury. As a result, rule changes were adopted by the USA Hockey and Hockey Canada to raise the minimum age at which body checking is permitted to 13–14 years (Bantam level) from 11–12 years (Pee Wee). Continuing the education of coaches, parents and players on rules of safe play, and emphasizing the standards for proper equipment use are other strategies being implemented to make the game safer to play. The objective of this article was to review the evaluation, management and prevention of common lower extremity youth hockey injuries. PMID:27920584

  5. Sport-related concussions: knowledge translation among minor hockey coaches.

    Science.gov (United States)

    Mrazik, Martin; Bawani, Farzad; Krol, Andrea L

    2011-07-01

    The objective of this study was to investigate minor hockey coaches' knowledge base of sport-related concussions. Cross-sectional survey. Subjects independently completed the written survey at preseason organizational meetings. One hundred seventy-eight active coaches spanning 5 age levels (ages 5-15 years). Coaches reported 2.62 ± 3.73 years of coaching experience. Resources where coaches obtained information about concussions, perceptions of variables associated with concussions, knowledge level of issues associated with concussions, and decision-making practices. Newspapers and magazines were the most frequent source of information regarding concussions, yet were rated as not very helpful. Family physicians were less frequently sought but were rated as most helpful. A majority of coaches reported limited knowledge about concussions but rated this knowledge as being important. There was a significant relationship between head coaching experience and concussion knowledge [R = 0.09, F3,156 = 4.41, P = 0.005]. Most coaches demonstrated a good knowledge base of common issues associated with concussions, and a majority of individuals correctly identified return-to-play practices. A majority of minor hockey coaches correctly recognized and understood issues related to sport-related concussions. Results suggested that knowledge translation through various formal and informal sources has had a positive effect. However, a majority of coaches reported having limited knowledge about concussions yet consider it an important topic.

  6. Personality and Injury Risk Among ‎Professional Hockey Players

    Directory of Open Access Journals (Sweden)

    David C. Schwebel

    2009-07-01

    Full Text Available Background: Although much is known about risk for athletic injury, research on the roles of individual differences in personality and temperament on athletic injury has lagged. We hypothesized that professional athletes with high sensation-seeking and extraversion scores, and with low effortful control scores, would experience more injuries over the course of a season, would have more severe injuries, and would miss more total days of play. Methods: Prospective design with questionnaire report at time one and injury tracking throughout an 18-week athletic season. Setting: Professional hockey team in the United States. Participants: Eighteen professional hockey players (ages 21-33. Measurements: Players completed self-report personality (Sensation-Seeking Scale, Form V and temperament (the Adult Temperament Questionnaire measures. Quantity and severity of injury, as well as playing time missed, were tracked for 18 weeks. Results: On average, players experienced almost 6 injuries causing a loss of 10 playing days through the season. Those players scoring high on Boredom Susceptibility and Total Sensation-Seeking incurred more total injuries. Those scoring high on temperamental neutral perceptual sensitivity suffered more severe injuries. Conclusions: Athletes who suffered more injuries reported a preference for stimulating environments and boredom with non-stimulating environments. Injury severity was not correlated with sensation-seeking but was related to temperamental perceptual sensitivity. Implications for identification of injury-prone athletes, pre-injury training, and post-injury treatment are discussed.

  7. Quantifying Head Impact Exposure in Collegiate Women's Soccer.

    Science.gov (United States)

    Press, Jaclyn N; Rowson, Steven

    2017-03-01

    The aim of this study was to quantify head impact exposure for a collegiate women's soccer team over the course of the 2014 season. Observational and prospective study. Virginia Tech women's soccer games and practices. Twenty-six collegiate level women's soccer players with a mean player age of 19 ± 1. Participating players were instrumented with head impact sensors for biomechanical analysis. Video recordings of each event were used to manually verify each impact sustained. Head impact counts by player position and impact situation. The sensors collected data from a total of 17 865 accelerative events, 8999 of which were classified as head impacts. Of these, a total of 1703 impacts were positively identified (19% of total real impacts recorded by sensor), 90% of which were associated with heading the ball. The average number of impacts per player per practice or game was 1.86 ± 1.42. Exposure to head impact varied by player position. Head impact exposure was quantified through 2 different methods, which illustrated the challenges associated with autonomously collecting acceleration data with head impact sensors. Users of head impact data must exercise caution when interpreting on-field head impact sensor data.

  8. Multiple Off-Ice Performance Variables Predict On-Ice Skating Performance in Male and Female Division III Ice Hockey Players.

    Science.gov (United States)

    Janot, Jeffrey M; Beltz, Nicholas M; Dalleck, Lance D

    2015-09-01

    The purpose of this study was to determine if off-ice performance variables could predict on-ice skating performance in Division III collegiate hockey players. Both men (n = 15) and women (n = 11) hockey players (age = 20.5 ± 1.4 years) participated in the study. The skating tests were agility cornering S-turn, 6.10 m acceleration, 44.80 m speed, modified repeat skate, and 15.20 m full speed. Off-ice variables assessed were years of playing experience, height, weight and percent body fat and off-ice performance variables included vertical jump (VJ), 40-yd dash (36.58m), 1-RM squat, pro-agility, Wingate peak power and peak power percentage drop (% drop), and 1.5 mile (2.4km) run. Results indicated that 40-yd dash (36.58m), VJ, 1.5 mile (2.4km) run, and % drop were significant predictors of skating performance for repeat skate (slowest, fastest, and average time) and 44.80 m speed time, respectively. Four predictive equations were derived from multiple regression analyses: 1) slowest repeat skate time = 2.362 + (1.68 x 40-yd dash time) + (0.005 x 1.5 mile run), 2) fastest repeat skate time = 9.762 - (0.089 x VJ) - (0.998 x 40-yd dash time), 3) average repeat skate time = 7.770 + (1.041 x 40-yd dash time) - (0.63 x VJ) + (0.003 x 1.5 mile time), and 4) 47.85 m speed test = 7.707 - (0.050 x VJ) - (0.01 x % drop). It was concluded that selected off-ice tests could be used to predict on-ice performance regarding speed and recovery ability in Division III male and female hockey players. Key pointsThe 40-yd dash (36.58m) and vertical jump tests are significant predictors of on-ice skating performance specific to speed.In addition to 40-yd dash and vertical jump, the 1.5 mile (2.4km) run for time and percent power drop from the Wingate anaerobic power test were also significant predictors of skating performance that incorporates the aspect of recovery from skating activity.Due to the specificity of selected off-ice variables as predictors of on-ice performance, coaches can

  9. Research on Status of Women’ s Hockey Reserve Talents in Jiangsu Province%江苏省女子曲棍球后备人才现状研究

    Institute of Scientific and Technical Information of China (English)

    陈金凤; 咸东进

    2014-01-01

    Through using the method of literature review and questionnaire , this paper makes analysis on status of women’s hockey reserve talents in Jiangsu province .The result shows that women ’s hockey talent source is nar-row Jiangsu province , age structure is too old , the mode of talent identification has higher scientization , athletes are involved in other sports before participating in hockey , traing years of majority are 3-4 years, athletes have good training attitude and motivation , but their cultural learning performance is unsatisfactory , Employment after retirement is poor .It suggests that we should promote the development of field hockey and overall development of athletes, broaden the way of athletes .%本文采用文献资料法、问卷调查法等研究方法,对江苏省女子曲棍球后备人才队伍现状进行研究,研究结果:江苏省女子曲棍球后备人才来源较为狭窄,年龄结构偏大,选材方式科学化较高,运动员从事曲棍球前均参与其他运动项目,绝大多数运动员训练年限在3-4年,运动员训练态度和动机较为成熟,但运动员文化学习成绩普遍不够理想,退役后的就业情况不佳。建议:推动曲棍球项目普及开展;促进运动员全面发展;拓宽运动员的出路。

  10. Three-dimensional kinematics of the knee and ankle joints for three consecutive push-offs during ice hockey skating starts.

    Science.gov (United States)

    Lafontaine, Dany

    2007-09-01

    Little biomechanical research has been conducted recently on hockey skating despite the sport's worldwide appeal. One reason for this lack of biomechanical knowledge stems from the difficulty of collecting data. The lack of accuracy, the disputable realism of treadmills, and the large field of view required are some of the technical challenges that have to be overcome. The main objective of the current study was to improve our knowledge of the joint kinematics during the skating stroke. A second objective was to improve the data collection system we developed and the third was to establish if a kinematic progression exists in the hockey skating stroke similar to that in speed skating. Relative motions at the knee and ankle joints were computed using a joint coordinate system approach. The differences at the knee joints in push-offs indicated that the skating skill was progressively changing with each push-off. The relative stability of the ankle angles can be attributed to the design of the skate boots, which have recently become very rigid. Further research on ice hockey skating is warranted and should include more skaters and investigate the effect various starting strategies and variations in equipment have on skaters' performance.

  11. Sports chiropractic management at the World Ice Hockey Championships

    Directory of Open Access Journals (Sweden)

    Vitiello Andrew L

    2010-12-01

    Full Text Available Abstract Background Ice hockey is an international sport. Injuries occur in a full body fashion, to a number of tissues, commonly through body contact. There is a lack of literature documenting the scope of sports chiropractic practice. Thus, it was the aim to document the type, scope and severity of conditions presenting to, and the treatment provided by, the New Zealand team chiropractor acting as a primary health provider for the duration of the 2007 World Ice Hockey Championships. Methods All conditions presenting were recorded. Diagnosis was recorded along with clinical parameters of injury: injury type, severity, mechanism and whether referral or advanced imaging was required. All treatment provided was continuously recorded, including information on the number of treatments required and the reason, duration, type and location of treatment. Results Players presented for diagnosis of injury 50 times. Muscle (34%, joint (24% and tendon injuries (18% were most common. Players presented with a new injury 76% of the time. Most injuries had been present for less than one week (84%, with 53% occurring through a contact mechanism. Injuries were common at training and match locations. Only two injuries required the player to stop playing or training, both of which were referred for advanced imaging. During the study, 134 treatment consultations were rendered to 45 player injuries. Eighty per-cent of injuries were managed with four or less treatments. Three quarters of treatment was provided at training locations with treatment duration predominantly being between 11-15 minutes (71% and 16-20 minutes (27%. Most treatment delivered was passive in nature (71% although combination active and passive care was provided (27%. Treatment typically involved joint (81% and soft tissue based therapies (81% and was delivered in a full body manner. Conclusions This study documented the injury profile of ice hockey at an international level of competition. It

  12. [Profile of childrens' hockey coaches and motives of participation and resignation].

    Science.gov (United States)

    Spallanzani, C

    1988-06-01

    The purpose of this study was twofold: (a) to outline a demographic profile of Quebec minor hockey coaches and (b) to identify their motives of involvement and resignation. A questionnaire was completed by 333 current coaches and by 175 former coaches from the Quebec City area. Results showed that these volunteers are very similar on all counts. They are fathers of at least one boy who is a hockey player, and they come from all socio-economic strata. They are former hockey players and are well aware of the activities of the professional teams. They perceive themselves as being competent coaches and are satisfied with their results. They highly value hockey as a means of education and perceive their own role of volunteer as being an unselfish one geared toward youth education. On the other hand, they perceive the other volunteers' involvement as being self-interested and mainly due to the child's primary participation.

  13. Organizational-methodical aspects of perfection modern system of ice-hockey

    Directory of Open Access Journals (Sweden)

    Zavalnuk V.D.

    2010-03-01

    Full Text Available On the basis factors analysis of development methodical and organizational bases sporting preparation conformities to conformity and prospects of development of ice-hockey are shown. The system of competitions in hockey in the different regions of the world has distinctions on meaningfulness of sporting result. It influences on the structure of training process and function of his direction - system of planning, design, control, selection. Presented foundation for the prospect perfection sport game in Ukraine.

  14. Lung physiology at play: Hemoptysis due to underwater hockey

    Directory of Open Access Journals (Sweden)

    Meghan Aversa

    2014-01-01

    Full Text Available Hemoptysis can be a very concerning symptom, and the workup of a patient with hemoptysis may be expensive and invasive. Over the past decade, there has been increasing recognition of hemoptysis that occurs in highly trained athletes under conditions of extreme physical exertion and is explained by “pulmonary capillary stress failure”. This report highlights the physiological mechanisms of pulmonary capillary stress failure in the highly trained athlete, with emphasis on the predisposition to develop this condition in underwater sports. We describe the case of an otherwise healthy 34 year-old competitive underwater hockey player who reported hemoptysis following particularly strenuous games. We postulate that the hemoptysis was a result of the pulmonary capillary stress failure caused by the cumulative hemodynamic effects of a markedly elevated cardiac output, the increased central blood volume caused by the hydrostatic effects of submersion in water, and the negative intrathoracic pressure produced by voluntary diaphragmatic contractions.

  15. Snatch technique of collegiate national level weightlifters.

    Science.gov (United States)

    Schilling, Brian K; Stone, Michael H; O'Bryant, Harold S; Fry, Andrew C; Coglianese, Robert H; Pierce, Kyle C

    2002-11-01

    Bar trajectory during weightlifting movements is related to the position of the body during the lift and the displacement of the feet during the drop-under phase. The purpose of this study was to examine anterior-posterior foot displacement and its relationship with performance in the snatch of collegiate weightlifters. Snatch attempts of men weightlifters from the 1998 U.S.A. Weightlifting Collegiate National Championships were analyzed for horizontal displacement of the feet by video analysis. Lifts were analyzed under 2 conditions: all lifts combined and the heaviest successful attempt for each lifter. Lifts (n = 74) were placed into 4 groups: forward displacement (FD, >2.5 cm); no displacement (ND, +/-2.5 cm); rearward displacement (RD, >2.5 cm); and those that showed asymmetric (AS, >7 cm difference in right and left foot) displacement of the feet. Chi-square revealed no significant difference in success rate between groups for all attempts. No statistically significant differences were noted between groups in body mass to bar mass ratio or Sinclair formula for heaviest successful attempts. Results indicate that foot displacement did not significantly affect snatch success or lifting ability in collegiate national level lifters.

  16. Injury patterns in Division I collegiate swimming.

    Science.gov (United States)

    Wolf, Brian R; Ebinger, Alexander E; Lawler, Michael P; Britton, Carla L

    2009-10-01

    In the last 25 years, it is estimated that over 42,000 male and female swimmers have competed at the National Collegiate Athletic Association (NCAA) Division I-A level. Despite the magnitude of these numbers, little is known about the epidemiology of collegiate swimming injuries. Purpose To describe the pattern of injuries incurred for one NCAA Division I collegiate men's and women's swimming team over 5 seasons. Descriptive epidemiology study. Musculoskeletal and head injuries reported in the Sports Injury Management System for a Division I swimming team from 2002-2007 were identified. Gender, body part, year of eligibility, position, stroke specialty, scholarship status, and team activity during which the injury occurred and lost time were recorded. Risk of injury was assessed relative to gender, stroke specialty, and year of eligibility. From 2002-2007, 44 male and 50 female athletes competed for the University of Iowa swimming and diving team. The overall injury rates were estimated as 4.00 injuries per 1000 exposures for men and 3.78 injuries per 1000 exposures for women. Thirty-seven percent of injuries resulted in missed time. The shoulder/upper arm was the most frequently injured body part followed by the neck/back. Freshman swimmers suffered the most injuries as well as the highest mean number of injuries per swimmer. A significant pattern of fewer injuries in later years of eligibility was also demonstrated. The relative risk (RR) for injury was higher among nonfreestyle stroke specialties (RR, 1.33 [1.00-1.77]). Injury most often occurred as a result of, or during, practice for all swimmers. However, 38% of injuries were the result of team activities outside of practice or competition, such as strength training. No significant relationship was found between occurrence of injury and gender or scholarship status. There was no significant relationship between body part injured and stroke specialty. An increased number of total injuries and an increased risk

  17. Assessment of Cardiovascular Risk in Collegiate Football Players and Nonathletes

    Science.gov (United States)

    Dobrosielski, Devon A.; Rosenbaum, Daryl; Wooster, Benjamin M.; Merrill, Michael; Swanson, John; Moore, J. Brian; Brubaker, Peter H.

    2010-01-01

    Collegiate American football players may be at risk for cardiovascular disease. Objective: To compare cardiovascular disease risk factors and cardiovascular structure and function parameters of football players, stratified by position, to a group of sedentary, nonathletes. Participants: Twenty-six collegiate football players and 13 nonathletes…

  18. Assessment of Cardiovascular Risk in Collegiate Football Players and Nonathletes

    Science.gov (United States)

    Dobrosielski, Devon A.; Rosenbaum, Daryl; Wooster, Benjamin M.; Merrill, Michael; Swanson, John; Moore, J. Brian; Brubaker, Peter H.

    2010-01-01

    Collegiate American football players may be at risk for cardiovascular disease. Objective: To compare cardiovascular disease risk factors and cardiovascular structure and function parameters of football players, stratified by position, to a group of sedentary, nonathletes. Participants: Twenty-six collegiate football players and 13 nonathletes…

  19. A Critical Analysis of Collegiate Licensing Policies and Procedures.

    Science.gov (United States)

    Irwin, Richard L.; And Others

    1993-01-01

    A review of the literature and a survey of 98 collegiate licensing programs and 6 sport licensing programs were used to develop an optimal administrative model for collegiate licensing. Specific administrative recommendations concerning staffing, inventory, trademarks, written policies, exclusivity, innovative agreements, product samples,…

  20. Proceedings from the Ice Hockey Summit on concussion: a call to action.

    Science.gov (United States)

    Smith, A; Stuart, M; Greenwald, R; Benson, B; Dodick, D; Emery, C; Finnoff, J; Mihalik, J; Roberts, W; Sullivan, C A; Meeuwisse, W

    2011-07-01

    The objective of this proceedings is to integrate the concussion in sport literature and sport science research on safety in ice hockey to develop an action plan to reduce the risk, incidence, severity, and consequences of concussion in ice hockey. A rationale paper outlining a collaborative action plan to address concussions in hockey was posted for review two months prior to the Ice Hockey Summit: Action on Concussion. Focused presentations devoted specifically to concussion in ice hockey were presented during the Summit and breakout sessions were used to develop strategies to reduce concussion in the sport. This proceedings and a detailed scientific review (a matrix of solutions) were written to disseminate the evidence-based information and resulting concussion reduction strategies. The manuscripts were reviewed by the authors, advisors and contributors to ensure that the opinions and recommendations reflect the current level of knowledge on concussion in hockey. Six components of a potential solution were articulated in the Rationale paper and became the topics for breakout groups that followed the professional, scientific lectures. Topics that formed the core of the action plan were: metrics and databases; recognizing, managing and return to play; hockey equipment and ice arenas; prevention and education; rules and regulations; and expedient communication of the outcomes. The attendees in breakout sessions identified action items for each section. The most highly ranked action items were brought to a vote in the open assembly, using an Audience Response System (ARS). The strategic planning process was conducted to assess: Where are we at?; Where must we get to?; and What strategies are necessary to make progress on the prioritized action items? Three prioritized action items for each component of the solution and the percentage of the votes received are listed in the body of this proceedings.

  1. Game Intensity Analysis of Elite Adolescent Ice Hockey Players

    Directory of Open Access Journals (Sweden)

    Stanula Arkadiusz

    2014-12-01

    Full Text Available The purpose of this study was to determine ice-hockey players’ playing intensity based on their heart rates (HRs recorded during a game and on the outcomes of an incremental maximum oxygen uptake test. Twenty ice-hockey players, members of the Polish junior national team (U18, performed an incremental test to assess their maximal oxygen uptake (V̇ O2max in the two week’s period preceding 5 games they played at the World Championships. Players’ HRs at the first and second ventilatory thresholds obtained during the test were utilized to determine intensity zones (low, moderate, and high that were subsequently used to classify HR values recorded during each of the games. For individual intensity zones, the following HRs expressed as mean values and as percentages of the maximal heart rate (HRmax were obtained: forwards 148-158 b⋅min-1 (79.5-84.8% HRmax, 159-178 b⋅min-1 (85.4-95.6% HRmax, 179-186 b⋅min-1 (96.1-100.0% HRmax; defensemen 149-153 b⋅min-1 (80.0-82.1% HRmax, 154-175 b⋅min-1 (82.6- 94.0% HRmax, 176-186 b⋅min-1 (94.5-100.0% HRmax. The amount of time the forwards and defensemen spent in the three intensity zones expressed as percentages of the total time of the game were: 54.91 vs. 55.62% (low, 26.40 vs. 22.38% (moderate and 18.68 vs. 22.00% (high. The forwards spent more time in the low intensity zone than the defensemen, however, the difference was not statistically significant. The results of the study indicate that using aerobic and anaerobic metabolism variables to determine intensity zones can significantly improve the reliability of evaluation of the physiological demands of the game, and can be a useful tool for coaches in managing the training process.

  2. Thoracic pain in a collegiate runner.

    Science.gov (United States)

    Austin, G P; Benesky, W T

    2002-08-01

    This case study describes the process of examination, re-examination, and intervention for a collegiate runner with mechanical thoracic pain preventing athletic participation and limiting daily function. Unimpaired function fully returned in less than 3 weeks with biweekly sessions to re-establish normal and painfree thoracic mechanics via postural hygiene, exercise, mobilization, and manipulation. The outcome of this case study supports the original hypothesis that the pattern of impairments was in fact responsible for the functional limitations and disability in this athlete. At the time of publication the athlete was without functional limitations and had fully returned to competitive sprinting for the university track team.

  3. Research in collegiate mathematics education IV

    CERN Document Server

    Dubinsky, Ed; Kaput, Jim

    2001-01-01

    This fourth volume of Research in Collegiate Mathematics Education (RCME IV) reflects the themes of student learning and calculus. Included are overviews of calculus reform in France and in the U.S. and large-scale and small-scale longitudinal comparisons of students enrolled in first-year reform courses and in traditional courses. The work continues with detailed studies relating students' understanding of calculus and associated topics. Direct focus is then placed on instruction and student comprehension of courses other than calculus, namely abstract algebra and number theory. The volume co

  4. Research in collegiate mathematics education III

    CERN Document Server

    Arcavi, A; Kaput, Jim; Dubinsky, Ed; Dick, Thomas

    1998-01-01

    Volume III of Research in Collegiate Mathematics Education (RCME) presents state-of-the-art research on understanding, teaching, and learning mathematics at the post-secondary level. This volume contains information on methodology and research concentrating on these areas of student learning: Problem solving. Included here are three different articles analyzing aspects of Schoenfeld's undergraduate problem-solving instruction. The articles provide new detail and insight on a well-known and widely discussed course taught by Schoenfeld for many years. Understanding concepts. These articles fe

  5. Physiological, physical and on-ice performance criteria for selection of elite ice hockey teams

    Directory of Open Access Journals (Sweden)

    R Roczniok

    2016-01-01

    Full Text Available The purpose of this study was to examine physiological and physical determinants of ice-hockey performance in order to assess their impact on the result during a selection for ice hockey. A total of 42 ice hockey players took part in the selection camp. At the end of the camp 20 best players were selected by team of expert coaches to the ice hockey team and created group G1, while the second group (G2 consisted of not selected players (non-successful group Evaluation of goodness of fit of the model to the data was based on the Hosmer Lemeshow test Ice hockey players selected to the team were taller 181.95±4.02 cm, had lower % body fat 13.17±3.17%, a shorter time to peak power 2.47±0.35 s , higher relative peak power 21.34±2.41 W • kg-1 and higher relative total work 305.18±28.41 J • kg-1. The results of the aerobic capacity test showed significant differences only in case of two variables. Ice hockey players in the G1 had higher VO2max 4.07±0.31 l • min-1 values than players in the G2 as well as ice hockey players in G1 showed a higher level of relative VO2max 51.75±2.99 ml • min-1 • kg-1 than athletes in G2. Ice hockey players selected to the team (G1 performed better in the 30 m Forwards Sprint 4.28±0.31 s; 6x9 Turns 12.19±0.75 s; 6x9 stops 12.79±0.49 s and Endurance test (6x30 m stops 32.01±0.80 s than players in G2. The logistic regression model showed that the best predictors of success in the recruitment process of top level ice hockey players were time to peak power, relative peak power, VO2max and 30 m sprint forwards on ice. On the basis of the constructed predictive logistic regression model it will be possible to determine the probability of success of the athletes during following the selection processes to the team.

  6. Mechanisms of injury for concussions in university football, ice hockey, and soccer.

    Science.gov (United States)

    Delaney, J Scott; Al-Kashmiri, Ammar; Correa, José A

    2014-05-01

    To examine the mechanisms of injury for concussions in university football, ice hockey, and soccer. Prospective cohort design. McGill University Sport Medicine Clinic. Male and female athletes participating in varsity football, ice hockey, and soccer. Athletes were followed prospectively over a 10-year period to determine the mechanisms of injury for concussions and whether contact with certain areas of the body or individual variables predisposed to longer recovery from concussions. For soccer, data were collected on whether concussions occurred while attempting to head the ball. There were 226 concussions in 170 athletes over the study period. The side/temporal area of the head or helmet was the most common area to be struck resulting in concussion in all 3 sports. Contact from another player's head or helmet was the most probable mechanism in football and soccer. In hockey, concussion impacts were more likely to occur from contact with another body part or object rather than another head/helmet. Differences in mechanisms of injuries were found between males and females in soccer and ice hockey. Athletes with multiple concussions took longer to return to play with each subsequent concussion. Half of the concussions in soccer were related to attempting to head the soccer ball. The side of the head or helmet was the most common area to be struck resulting in concussion in all 3 sports. In ice hockey and soccer, there are differences in the mechanisms of injury for males and females within the same sport.

  7. Relationship between core strength and key variables of performance in elite rink hockey players.

    Science.gov (United States)

    Hoppe, M W; Freiwald, J; Baumgart, C; Born, D P; Reed, J L; Sperlich, B

    2015-03-01

    The aim of this study was to test the hypothesis that a significant relationship exists between the level of core strength-endurance and key variables of endurance, strength, power, speed, and agility performance in male elite rink hockey players. Ten male elite rink hockey players of the German national team were tested for 1) time to exhaustion, maximum oxygen uptake, and running economy, 2) one repetition maximum bench press and half squat, 3) counter movement jump height, 4) 5 m, 10 m, and 20 m speed, and 5) 22 m agility. The rink hockey players were also tested for 6) ventral, lateral-left, lateral-right, and dorsal core strength-endurance using concentric-eccentric muscle tests. The level of total and ventral core strength-endurance was very largely correlated with maximum oxygen uptake (r=0.74 and r=0.71, both Pcore strength-endurance and time to exhaustion (r=0.66, P0.05). The findings from this study suggest that the level of core strength-endurance is largely to very largely correlated with key variables of endurance performance, but not significantly with strength, power, speed, or agility indicators in male elite rink hockey players. These findings should be noted by coaches and scientists when testing physical fitness or planning strength and conditioning programs for male elite rink hockey players.

  8. Effect of playing basketball on the posture of cervical spine in healthy collegiate students

    OpenAIRE

    2015-01-01

    Objective: To assess and compare the cervical posture of collegiate students and collegiate basketball players.Procedure: Craniovertebral angle and Sagittal head tilt were measured using photogrammetric method in 15 collegiate students and 15 collegiate basketball players.Results: Significant differences were not found between two groups for any of the two angles at p<0.05.Conclusions: Playing basketball does not place any significant impact on the posture of cervical spine of collegiate s...

  9. Audio enabled information extraction system for cricket and hockey domains

    CERN Document Server

    Saraswathi, S; B., Sai Vamsi Krishna; S, Suresh Reddy

    2010-01-01

    The proposed system aims at the retrieval of the summarized information from the documents collected from web based search engine as per the user query related to cricket and hockey domain. The system is designed in a manner that it takes the voice commands as keywords for search. The parts of speech in the query are extracted using the natural language extractor for English. Based on the keywords the search is categorized into 2 types: - 1.Concept wise - information retrieved to the query is retrieved based on the keywords and the concept words related to it. The retrieved information is summarized using the probabilistic approach and weighted means algorithm.2.Keyword search - extracts the result relevant to the query from the highly ranked document retrieved from the search by the search engine. The relevant search results are retrieved and then keywords are used for summarizing part. During summarization it follows the weighted and probabilistic approaches in order to identify the data comparable to the k...

  10. Android NDK Graphics: Open GL ES Air Hockey Basis Application

    Directory of Open Access Journals (Sweden)

    Sabyasachi Patra

    2014-04-01

    Full Text Available When it comes to beautiful visual rendering and games on the Android handsets that we use today, much of that credit has to be given to the various graphic libraries which come along with programming paradigms. Just like anything in programming and technology, there are good and bad ways to implement and get certain things done both at the front end and the backend. What the Android Native Development Kit (NDK does is that it works alongside the Software Development Kit (SDK and injects the native powers of any C/C++ application into your Android application which can be packaged as any normal application and run on an emulator/device of choice. The SDK, the NDK, the ADT and Eclipse are primarily what one requires to directly hit on towards Android Native Development. So now how does one enjoy the seamless graphics, multimedia, physics and games on an Android device? It is the Native API’s which come as a result of relying on performance critical native code which makes this possible. In this paper we develop a basis game of Air Hockey, which is more of a concept game made using the technological paradigm of the NDK in Android Programming. Right from defining the structure of the table up to defining and implementing the shaders and 3D rendering, almost every important aspect has been researched and put into working through this paper.

  11. Differences in Lower Body Kinematics during Forward Treadmill Skating Between Two Different Hockey Skate Designs

    Directory of Open Access Journals (Sweden)

    Mike R. Hellyer

    2016-01-01

    Full Text Available Purpose: The purpose of this study was to investigate the differences in ankle flexibility and skating technique between a traditional hockey skate boot and a hockey skate boot with a flexible rear tendon guard. Skating technique was further investigated at different speeds to give insight on how skating technique alters as skating speed is increased. Methods: Eight elite hockey players were selected for the present study, which was conducted while skating on an Endless Ice Skating Treadmill.  Variables were recorded using a three-camera setup and measured from video records at five selected treadmill speeds using the Dartfish Team Pro v6 software.  Kinematic variables were then compared between the two skate designs with a doubly multivariate repeated measures design.  Statistical significance was set at p<0.05.  Results: Post hoc univariate tests comparing skate designs displayed significant increases in plantar flexion, plantar flexion angular velocity, hip extension, hip extension angular velocity, stride length, and stride velocity while participants were wearing the skates that had a flexible rear tendon guard.  Significant increases were also displayed in plantar flexion, plantar flexion angular velocity, knee extension, knee extension angular velocity, hip extension, hip extension angular velocity, hip abduction range of motion, hip abduction angular velocity, stride width, stride length, and stride velocity as the treadmill speed increased. There was also a significant decrease in the time the skate was in contact with the treadmill as treadmill speed increased. Conclusion: The results suggested that while skating forward, hockey players could improve their hockey skating technique by using hockey skates that have a flexible rear tendon guard.  This flexible tendon guard improved skating technique by increasing the time of force application to the ice by increasing the range of ankle plantar flexion during propulsion of the

  12. Assessing Intentions to Eat a Healthful Diet Among National Collegiate Athletic Association Division II Collegiate Athletes.

    Science.gov (United States)

    Karpinski, Christine A; Milliner, Kellianne

    2016-01-01

    Many athletes fail to obtain the optimal levels of energy and nutrients to support health and performance. The constructs underlying the Theory of Planned Behavior (TPB) may help identify barriers to healthful eating that can be addressed in nutrition-education programs. To use the TPB to examine factors regarding collegiate male and female student-athletes' intentions of eating a healthful diet. Cross-sectional study. Online survey tool. The survey was taken by 244 male and female National Collegiate Athletic Association Division II athletes, and data from 201 were analyzed. Mean age of the athletes was 20 ± 1.31 years (range, 18-24 years); most were white (86.1%) and female (78.6%). We assessed predictive strength of attitude, subjective norms, and perceived behavioral control on behavioral intentions. Regression analysis evaluated how the variables of TPB were valued and how they predict behavioral intentions. The combination of attitude, subjective norms, and perceived behavioral controls accounted for 73.4% (R 2) of the variance in behavioral intention (F = 180.82, P behavioral intentions (β = .534, P < .001). Understanding both the intentions of collegiate athletes to eat healthfully and how highly they value nutrition is crucial for the development of effective nutrition education and counseling programs.

  13. Addressing Gender Inequities in Collegiate Sport

    Directory of Open Access Journals (Sweden)

    Athena Yiamouyiannis

    2012-05-01

    Full Text Available The purpose of this study was to examine issues related to female representation within the governance structure of the National Collegiate Athletic Association (NCAA. A descriptive statistics approach through the lens of feminism was taken in collecting and analyzing data related to the gender representation of staff leadership positions within the NCAA national office and gender representation within the NCAA Division I, II, and III governance structure. This was coupled with a review of NCAA programming initiatives related to leadership opportunities. Although a number of strategies are being implemented by the NCAA to provide greater access and leadership opportunities for women (e.g., diversity initiatives, Senior Woman Administrator legislation, and guaranteed representation on committees, women continue to be underrepresented within NCAA governance substructures and upper leadership levels within the NCAA national office. In addition, nongender neutral sport governance policies still exist that impede the progress of achieving gender equality.

  14. Common Injuries of Collegiate Tennis Players

    Directory of Open Access Journals (Sweden)

    Christian Wisdom Magtajas Valleser

    2017-09-01

    Full Text Available The purpose of this study is to determine the common injuries of Filipino collegiate tennis players; 110 varsity tennis players with a mean of 20 years old (SD ± 1.7 with an average playing experience of 12 years participated in the study. There was a 100% occurrence of at least one injury with an average rate of 5.98 injuries per person. The authors observed that the most commonly injured anatomical region is the lower extremity; ankles were recorded as the most commonly injured part. Other commonly injured areas included the shoulders and lower back. Furthermore, the most common injury type is tendinitis, sprains, and strains. The recorded injuries were mostly associated with overuse injuries, and the findings were similar to those of most other studies on tennis injuries. A larger sample size may provide more conclusive findings on tennis injuries, particularly in different levels of competition, such as recreational or professional athletes.

  15. The Collegiate Learning Assessment: facts and fantasies.

    Science.gov (United States)

    Klein, Stephen; Benjamin, Roger; Shavelson, Richard; Bolus, Roger

    2007-10-01

    The Collegiate Learning Assessment (CLA) is a computer administered, open-ended (as opposed to multiple-choice) test of analytic reasoning, critical thinking, problem solving, and written communication skills. Because the CLA has been endorsed by several national higher education commissions, it has come under intense scrutiny by faculty members, college administrators, testing experts, legislators, and others. This article describes the CLA's measures and what they do and do not assess, how dependably they measure what they claim to measure, and how CLA scores differ from those on other direct and indirect measures of college student learning. For instance, analyses are conducted at the school rather than the student level and results are adjusted for input to assess whether the progress students are making at their school is better or worse than what would be expected given the progress of "similarly situated" students (in terms of incoming ability) at other colleges.

  16. Forecheck, backcheck, health check: the benefits of playing recreational ice hockey for adults in Canada.

    Science.gov (United States)

    Kitchen, Peter; Chowhan, James

    2016-11-01

    More than 1 million Canadian adults play recreational ice hockey. Compared to elite players, very little is known about the physical and health characteristics of people who play the game for fun. Analyzing data from Statistics Canada's 2011/12 Canadian Community Health Survey, the paper found that there is an association between physically active males age 35 or over who play ice hockey regularly (at least once a week) and enhanced health more so than other physically active males. While these players are larger in body size, they have significantly lower rates of diabetes, high blood pressure and heart disease and report significantly higher rates of self-assessed health. Given the potential health benefits associated with this high intensity sport, the paper discusses ways in which participation can be promoted among less physically active adults and people who are new to the game or who have historically lower levels of participation including women and recent immigrants. Finally, the paper argues that compared to the very high costs associated with child and youth hockey, participation in adult recreational ice hockey is quite affordable.

  17. Table Hockey: Attack or Linking? Psychoanalytic Psychotherapy with an Autistic Boy

    Science.gov (United States)

    Nilsson, May

    2009-01-01

    This paper explores some issues that might arise when one considers having a table hockey game in the therapy room, and describes how an autistic boy, aged four-and-a-half when starting treatment, used that game. The unfolding process from withdrawal to separateness, intersubjectivity and playfulness is illustrated by the progress of two years of…

  18. Laterality differences in elite ice hockey: an investigation of shooting and catching orientations.

    Science.gov (United States)

    Puterman, Jared; Schorer, Jörg; Baker, Joseph

    2010-12-01

    Little is known about the implications of motor asymmetries for skilled performers in dynamic, time-constrained, team-based activities such as ice hockey. Three studies were conducted to examine laterality differences in ice hockey. Study 1 investigated laterality distributions across three leagues of increasing calibre. Among skating players, skill level was related to changes in laterality patterns based on position, while a significant increase in the proportion of left-catching goaltenders was found across the levels of competition. Study 2 examined laterality differences through a 90-year retrospective analysis of player performance measures within an evolving system. Regression analysis indicated right shot preferences were associated with scoring more goals, while left shot preferences were related to assisting more goals. Among goaltenders, right-catching preferences were associated with an increased save percentage compared with left-catching goaltenders. In Study 3, player-goaltender shootout interactions revealed left shooters to be less successful against right-catching goaltenders. Results suggest ice hockey supports models of skilled perception, and provide new information in the area of laterality and strategic frequency-dependent effects in ice hockey.

  19. On the relationship between upper-body strength, power, and sprint performance in ice sledge hockey.

    Science.gov (United States)

    Skovereng, Knut; Ettema, Gertjan; Welde, Boye; Sandbakk, Øyvind

    2013-12-01

    Ice sledge hockey is a popular paralympic team sport where players rely entirely on their upper body to propel themselves rapidly across the ice surface. The isolated and repetitive poling movements provide a good model for examining upper-body sprint ability and the related movement and strength characteristics. Therefore, the purpose of the present study was to investigate the relationship between upper-body maximal strength, power, and sprint performance in ice sledge hockey. Thirteen male ice sledge hockey players from the Norwegian national team performed three 30-m maximal sprint tests recorded by fixed light sensors. The best 30-m time for each subject was used for further analyses, and the sprint was analyzed more in detail for the first and last 10-m split times and kinematics (cycle length and rate) using photocells and 2-dimensional video analysis. One repetition maximum (1RM) strength and peak power were assessed in the bench press, bench pull, and pull-down exercises using a barbell and a linear encoder. Both 1RM strength and peak power for all the 3 strength exercises correlated significantly with the total sprint time (-0.75 sprint test. There were no significant relationships between sprint kinematics and 1RM strength and peak power. Overall, these results demonstrate that there are close relationships between upper-body strength, power, and sprint performance in highly trained athletes and that the ability to produce propulsion and high frequency in combination is important for the sprint abilities in ice sledge hockey.

  20. Hockey, iPads, and Projectile Motion in a Physics Classroom

    Science.gov (United States)

    Hechter, Richard P.

    2013-01-01

    With the increased availability of modern technology and handheld probeware for classrooms, the iPad and the Video Physics application developed by Vernier are used to capture and analyze the motion of an ice hockey puck within secondary-level physics education. Students collect, analyze, and generate digital modes of representation of physics…

  1. Checking in: An Analysis of the (Lack of) Body Checking in Women's Ice Hockey

    Science.gov (United States)

    Weaving, Charlene; Roberts, Samuel

    2012-01-01

    Despite the growing popularity of women's ice hockey in North America, players continue to face limitations because of the prohibition of body checking. In this paper, we argue from a liberal feminist philosophical perspective that this prohibition reinforces existing traditional stereotypes of female athletes. Because the women's game does not…

  2. Describing Strategies Used by Elite, Intermediate, and Novice Ice Hockey Referees

    Science.gov (United States)

    Hancock, David J.; Ste-Marie, Diane M.

    2014-01-01

    Much is known about sport officials' decisions (e.g., anticipation, visual search, and prior experience). Comprehension of the entire decision process, however, requires an ecologically valid examination. To address this, we implemented a 2-part study using an expertise paradigm with ice hockey referees. Purpose: Study 1 explored the…

  3. On-ice sweat rate, voluntary fluid intake, and sodium balance during practice in male junior ice hockey players drinking water or a carbohydrate-electrolyte solution.

    Science.gov (United States)

    Palmer, Matthew S; Logan, Heather M; Spriet, Lawrence L

    2010-06-01

    This study evaluated the repeatability of hydration and sweat measurements taken during on-ice hockey practices with players drinking only water, and determined whether having only a carbohydrate-electrolyte solution (CES) to drink during practices decreased fluid intake or affected other hydration and (or) sweat measures. All testing was conducted on elite players of an Ontario Hockey League team (+/-SE; mean age, 17.6 +/- 0.3 years; mean height, 182.9 +/- 1.4 cm; mean body mass, 83.0 +/- 1.7 kg). Players were studied 3 times over the course of 6 weekly on-ice practices (+/-SE; mean playing time, 1.58 +/- 0.07 h; mean temperature, 11.4 +/- 0.8 degrees C; mean relative humidity, 52% +/- 3%). There was strong repeatability of the measured hydration and sweat parameters between 2 similar on-ice practices when players drank only water. Limiting the players to drinking only a CES (as opposed to water) did not decrease fluid intake during practice (+/-SE; mean CES intake, 0.72 +/- 0.07 L.h-1 vs. mean water intake, 0.82 +/- 0.08 L.h-1) or affect sweat rate (1.5 +/- 0.1 L.h-1 vs. 1.5 +/- 0.1 L.h-1), sweat sodium concentration (72.4 +/- 5.6 mmol.L-1 vs. 73.0 +/- 4.4 mmol.L-1), or percent body mass loss (1.1% +/- 0.2% vs. 0.9% +/- 0.2%). Drinking a CES also improved sodium balance (-2.1 +/- 0.2 g.h-1 vs. -2.6 +/- 0.3 g.h-1) and provided the players with a significant carbohydrate (43 +/- 4 g.h-1 vs. 0 +/- 0 g.h-1) during practice. In summary, a single field sweat test during similar on-ice hockey practices in male junior hockey players is sufficient to evaluate fluid and electrolyte balance. Also, a CES does not affect voluntary fluid intake during practice, compared with water, in these players. The CES provided some salt to offset the salt lost in sweat, and carbohydrate, which may help maintain physical and mental performance in the later stages of practice.

  4. Hockey Concussion Education Project, Part 2. Microstructural white matter alterations in acutely concussed ice hockey players: a longitudinal free-water MRI study.

    Science.gov (United States)

    Pasternak, Ofer; Koerte, Inga K; Bouix, Sylvain; Fredman, Eli; Sasaki, Takeshi; Mayinger, Michael; Helmer, Karl G; Johnson, Andrew M; Holmes, Jeffrey D; Forwell, Lorie A; Skopelja, Elaine N; Shenton, Martha E; Echlin, Paul S

    2014-04-01

    Concussion is a common injury in ice hockey and a health problem for the general population. Traumatic axonal injury has been associated with concussions (also referred to as mild traumatic brain injuries), yet the pathological course that leads from injury to recovery or to long-term sequelae is still not known. This study investigated the longitudinal course of concussion by comparing diffusion MRI (dMRI) scans of the brains of ice hockey players before and after a concussion. The 2011-2012 Hockey Concussion Education Project followed 45 university-level ice hockey players (both male and female) during a single Canadian Interuniversity Sports season. Of these, 38 players had usable dMRI scans obtained in the preseason. During the season, 11 players suffered a concussion, and 7 of these 11 players had usable dMRI scans that were taken within 72 hours of injury. To analyze the data, the authors performed free-water imaging, which reflects an increase in specificity over other dMRI analysis methods by identifying alterations that occur in the extracellular space compared with those that occur in proximity to cellular tissue in the white matter. They used an individualized approach to identify alterations that are spatially heterogeneous, as is expected in concussions. Paired comparison of the concussed players before and after injury revealed a statistically significant (p brain tissue. Fractional anisotropy was significantly increased, but this change was no longer significant following the free-water elimination. Concussion during ice hockey games results in microstructural alterations that are detectable using dMRI. The alterations that the authors found suggest decreased extracellular space and decreased diffusivities in white matter tissue. This finding might be explained by swelling and/or by increased cellularity of glia cells. Even though these findings in and of themselves cannot determine whether the observed microstructural alterations are related to long

  5. Bone properties in child and adolescent male hockey and soccer players.

    Science.gov (United States)

    Falk, Bareket; Braid, Sarah; Moore, Michael; Yao, Matthew; Sullivan, Phil; Klentrou, Nota

    2010-07-01

    Children and adolescents who train extensively in high-impact, weight-bearing activities have enhanced bone mineral density. The purpose of this study was to evaluate bone strength, as reflected by quantitative ultrasound (QUS, Sunlight Omniscence), of child (10-12 yrs old) and adolescent (14-16 yrs old) male soccer and hockey players in comparison with age-matched controls. The groups included 30 child (CH) and 31 adolescent (AH) hockey players, 26 child (CS) and 30 adolescent (AS) soccer players, as well as 34 child (CC) and 31 adolescent (AC) healthy, non-athletic, age-matched controls. All athletes trained at an elite level year-round, with no difference in training volume between groups. Ultrasound speed of sound (SOS) was measured at the distal-radius and mid-tibia. In both age groups, hockey players were the heaviest and had the highest fat-free mass. No differences were found among groups in total energy intake, calcium or vitamin D intake. Radial and tibial SOS increased with age. Hockey players had higher radial SOS in both age groups (children: CH:3763+/-74, CS:3736+/-77, CC:3721+/-88 m/s; adolescents: AH:3809+/-105, AS:3767+/-85, AC:3760+/-94 m/s). Tibial SOS was higher in soccer players compared with controls. In spite of the higher body mass and fat-free mass in hockey players, their tibial SOS was similar to the non-athletes in both age groups. These findings support previous suggestions of sport-specific effects on bone strength. However, they need to be corroborated with longitudinal or prospective intervention studies.

  6. Estudio etnográfico del portero de hockey sobre patines: una vida entre paradojas

    Directory of Open Access Journals (Sweden)

    Guillem Trabal Tañá

    2016-12-01

    Full Text Available Este estudio es la primera investigación en las ciencias de la actividad física y el deporte que ha analizado desde una perspectiva etnográfica el portero de hockey sobre patines. El objetivo principal es conocer cuáles son las valoraciones y los juicios que la comunidad del hockey sobre patines ha otorgado a esta figura y poder comprender cuál es la lógica externa existente a su alrededor. La metodología utilizada en este estudio ha sido la observación, la observación participante y 8 entrevistas en profundidad a porteros, jugadores y entrenadores de la máxima categoría del hockey sobre patines nacional. Los principales resultados muestran que: a el portero es considerado el jugador más determinante del equipo; b los juicios que se hacen de las actuaciones del portero tienen en cuenta variables cuantitativas: los goles encajados y el resultado final de un partido y/o competición; c dentro de la comunidad del hockey sobre patines se ha enquistado una definición de la identidad del portero que lo asocia a la locura, la soledad, la extravagancia y la rareza; d los porteros comparten una forma particular de comprender este deporte que fundamenta su asociación y su cooperación, y e la existencia del portero dentro del hockey sobre patines está llena de paradojas que se contraponen a la alta importancia atribuida a esta figura.

  7. Aggression, Violence and Injury in Minor League Ice Hockey: Avenues for Prevention of Injury.

    Directory of Open Access Journals (Sweden)

    Michael D Cusimano

    Full Text Available In North America, more than 800,000 youth are registered in organized ice hockey leagues. Despite the many benefits of involvement, young players are at significant risk for injury. Body-checking and aggressive play are associated with high frequency of game-related injury including concussion. We conducted a qualitative study to understand why youth ice hockey players engage in aggressive, injury-prone behaviours on the ice.Semi-structured interviews were conducted with 61 minor ice hockey participants, including male and female players, parents, coaches, trainers, managers and a game official. Players were aged 13-15 playing on competitive body checking teams or on non-body checking teams. Interviews were manually transcribed, coded and analyzed for themes relating to aggressive play in minor ice hockey.Parents, coaches, teammates and the media exert a large influence on player behavior. Aggressive behavior is often reinforced by the player's social environment and justified by players to demonstrate loyalty to teammates and especially injured teammates by seeking revenge particularly in competitive, body-checking leagues. Among female and male players in non-body checking organizations, aggressive play is not reinforced by the social environment. These findings are discussed within the framework of social identity theory and social learning theory, in order to understand players' need to seek revenge and how the social environment reinforces aggressive behaviors.This study provides a better understanding of the players' motivations and environmental influences around aggressive and violent play which may be conducive to injury. The findings can be used to help design interventions aimed at reducing aggression and related injuries sustained during ice hockey and sports with similar cultures and rules.

  8. Aggression, Violence and Injury in Minor League Ice Hockey: Avenues for Prevention of Injury.

    Science.gov (United States)

    Cusimano, Michael D; Ilie, Gabriela; Mullen, Sarah J; Pauley, Christopher R; Stulberg, Jennifer R; Topolovec-Vranic, Jane; Zhang, Stanley

    2016-01-01

    In North America, more than 800,000 youth are registered in organized ice hockey leagues. Despite the many benefits of involvement, young players are at significant risk for injury. Body-checking and aggressive play are associated with high frequency of game-related injury including concussion. We conducted a qualitative study to understand why youth ice hockey players engage in aggressive, injury-prone behaviours on the ice. Semi-structured interviews were conducted with 61 minor ice hockey participants, including male and female players, parents, coaches, trainers, managers and a game official. Players were aged 13-15 playing on competitive body checking teams or on non-body checking teams. Interviews were manually transcribed, coded and analyzed for themes relating to aggressive play in minor ice hockey. Parents, coaches, teammates and the media exert a large influence on player behavior. Aggressive behavior is often reinforced by the player's social environment and justified by players to demonstrate loyalty to teammates and especially injured teammates by seeking revenge particularly in competitive, body-checking leagues. Among female and male players in non-body checking organizations, aggressive play is not reinforced by the social environment. These findings are discussed within the framework of social identity theory and social learning theory, in order to understand players' need to seek revenge and how the social environment reinforces aggressive behaviors. This study provides a better understanding of the players' motivations and environmental influences around aggressive and violent play which may be conducive to injury. The findings can be used to help design interventions aimed at reducing aggression and related injuries sustained during ice hockey and sports with similar cultures and rules.

  9. A Longitudinal Examination of Work-Life Balance in the Collegiate Setting

    National Research Council Canada - National Science Library

    Mazerolle, Stephanie; Eason, Christianne

    2016-01-01

    The literature regarding work-life balance (WLB) is plentiful, particularly in the National Collegiate Athletic Association Division I collegiate setting due to its demanding nature as defined by work hours and travel...

  10. Interconnection of speed, power and speed-power abilities of professional hockey players on ice and out of ice

    Directory of Open Access Journals (Sweden)

    Zankovets V.E.

    2015-09-01

    Full Text Available Purpose: determination of correlation’s degree between speed, power and speed-power abilities of professional hockey players on ice and out of ice. Material: 65 professional hockey players of age from 16 to 33 years old were tested. 75 highly qualified coaches were questioned. Results: The found out interconnections between 11 indicators of speed, power and speed power qualities supplement knowledge about transfer physical qualities. We detected high interconnection between speed and speed-power abilities, manifested by sportsmen in exercises on ice and on land. We registered moderate level of interconnection between static (absolute power and speed abilities of hockey players. We proved hypothesis about possibility of start speed (power transfer in different conditions of its manifestation. Conclusions: the received data permit to correct hockey players’ training program, considering new knowledge about transfer of one or the other physical qualities on sportsmen’s training.

  11. The Protective Effect of Kevlar ® Socks Against Hockey Skate Blade Injuries: A Biomechanical Study

    Science.gov (United States)

    Nauth, Aaron; Aziz, Mina; Tsuji, Matthew; Whelan, Daniel B.; Theodoropoulos, John S.; Zdero, Rad

    2014-01-01

    Objectives: Several recent high profile injuries to elite players in the National Hockey League (NHL) secondary to skate blade lacerations have generated significant interest in these injuries and possible methods to protect against them. These injuries are typically due to direct contact of the skate blade of another player with posterior aspect of the calf resulting in a range of potential injuries to tendons or neurovascular structures. The Achilles tendon is most commonly involved. Kevlar® reinforced socks have recently become available for hockey players to wear and are cited as providing possible protection against such injuries. However, there has been no investigation of the possible protective effects of Kevlar® reinforced socks against skate blade injuries, and it is currently unknown what protective effects, if any, that these socks provide against these injuries. The proposed study sought to address this by conducting a biomechanical investigation of the protective effects of Kevlar® reinforced socks against Achilles tendon injuries in a simulated model of skate blade injury using human cadaver limbs. This novel investigation is the first to address the possible benefits to hockey players of wearing Kevlar® reinforced socks. Methods: Seven matched pairs of human cadaver lower limbs were fitted with a Kevlar ® reinforced sock comprised of 60% Kevlar®/20% Coolmax® polyester/18 % Nylon/12% Spandex (Bauer Elite Performance Skate Sock) on one limb and a standard synthetic sock comprised of 51% polyester/47% nylon/2% spandex (Bauer Premium Performance Skate Sock) on the contralateral limb as a control. Each limb was then mounted on a Materials Testing System (MTS) with the ankle dorsiflexed to 90° and the knee held in full extension using a custom designed jig. Specimens were then impacted with a hockey skate blade directed at the posterior calf, 12 cm above the heel, at an angle of 45° and a speed of 31m/s, to a penetration depth of 4.3 cm, to

  12. Collegiate Intramural Sports Participation: Identified Social Outcomes

    Directory of Open Access Journals (Sweden)

    Jill R. Sturts

    2013-06-01

    Full Text Available Collegiate recreational sports provide many avenues for student development resulting in various benefits that have been supported through theoretical and empirical research. This study examined social outcomes of participation in intramural sports. The data revealed differences in social outcomes related to gender, age, year in school, ethnicity, residence, and division of competition. Differences were found between groups in the degree of social outcomes experienced. The data contribute to a body of empirical research which shows that intramural sport participation serves as a vehicle for social development among college students, which not only improves overall well-being but can also help serve as a potential reason for why students persist at universities. Specific areas of development include social interaction, time management, ability to work within a team, overall happiness, sense of belonging, and feelings of self-worth. The results of this study will assist university recreational sport professionals and administrators in further understanding the role and importance of intramural sports as a vehicle for social development while also providing evidence of differences between groups.

  13. Collegiate Aviation Research and Education Solutions to Critical Safety Issues. UNO Aviation Monograph Series. UNOAI Report.

    Science.gov (United States)

    Bowen, Brent, Ed.

    This document contains four papers concerning collegiate aviation research and education solutions to critical safety issues. "Panel Proposal Titled Collegiate Aviation Research and Education Solutions to Critical Safety Issues for the Tim Forte Collegiate Aviation Safety Symposium" (Brent Bowen) presents proposals for panels on the…

  14. Administrator Renewal: The Leadership Role in Collegial Team Development. ACFK Ltd. Occasional Paper.

    Science.gov (United States)

    Geddes, Vivian

    This publication is intended to assist the leaders of collegial teams and to provide a plan for a school district program coordinator to use in establishing a number of collegial teams within a district. Part 1 presents a thorough definition of a collegial team and describes what such a team does. Also provided in this section is information on…

  15. Stress-stability and its influence on efficiency of competition activity of hockey players of high class

    Directory of Open Access Journals (Sweden)

    Andrey Mikhnov

    2014-10-01

    Full Text Available Purpose: to define the level of stress-stability of hockey players of high class and expose his influence on efficiency of competition activity of sportsmen. Materials and Methods: sixteen sportsmen of high class, taking part in the matches of the Kontinental hockey league (KXL for a club «Atlas» (Moscow obl. in a season 2013–2014, took part in researches The level of stress-stability of hockey players and his influence was analysed on efficiency of competition activity of sportsmen. Methods were used: pedagogical supervisions and analysis of competition activity, psychological testing, analysis of data of the special scientific-methodical literature, an analysis of data is the Internet, methods of mathematical statistics. Results: it is set in researches, that the hockey players of high class have a moderate level of personality and situation anxiety, high motivation to success and propensity to the risk. Correlation analysis showed that the level of stress resistance affects the efficiency of hockey players technical and tactical actions in the game. What below for sportsmen the level of stress was marked, the higher there were indexes of the neglected pucks and effective transmissions in a match (r=–0,583, –0,542. Conclusions: the level of stress-stability of hockey players of high class influences on efficiency of competition activity of sportsmen. Can be drawn on the exposed results for the correction of psychological preparedness of sportsman.

  16. Diagnosis and Rehabilitation of a Middle Cuneiform Fracture in a Hockey Player.

    Science.gov (United States)

    Hensley, Craig P; Dirschl, Douglas R

    2016-07-01

    Isolated cuneiform fractures are rare and are often missed on plain radiographs, leading to delayed diagnosis and delayed return to sport. The authors of this study present a 32-year-old male ice hockey player who sustained trauma to his dorsal midfoot from a slap shot. Radiographs were negative for fracture. After inability to wean out of the controlled ankle movement boot, magnetic resonance imaging was ordered, demonstrating a middle cuneiform fracture. The patient was seen in physical therapy, where aquatic therapy, strength training, and cardiovascular conditioning were progressed. He was able to wean out of the controlled ankle movement boot at 7 weeks after injury and return to playing ice hockey. Here, we outline rehabilitation and a diagnostic and rehabilitative algorithm for those who sustain trauma to the dorsal midfoot with suspected fracture.

  17. Prevention of Hamstring Injuries in Collegiate Sprinters

    Science.gov (United States)

    Sugiura, Yusaku; Sakuma, Kazuhiko; Sakuraba, Keishoku; Sato, Yamato

    2017-01-01

    Background: No studies have been reported on how strength, agility, and flexibility training reduce the occurrence of hamstring injuries in sprinters. Therefore, a program for preventing hamstring injury in these athletes has not been established. Purpose: To document the incidence of hamstring injuries during times when different prevention strategies were employed to see whether a particular prevention program reduced their occurrence. Study Design: Descriptive epidemiology study. Methods: The study subjects were a total of 613 collegiate male sprinters trained by the same coach over 24 seasons. Tow training was used throughout the research period as a normal sprint training method. The hamstring injury prevention program evolved over time. From 1988 to 1991 (period 1), prevention focused on strength training alone; from 1992 to 1999 (period 2), a combination of strength and agility training was used; and from 2000 to 2011 (period 3), the program incorporated strength, agility, and flexibility training. The incidence of hamstring injuries was compared for each of the 3 prevention strategies. Results: The incidence of hamstring injuries per athlete-seasons was 137.9 for period 1, 60.6 for period 2, and 6.7 for period 3. A significant difference was observed in the incidence of hamstring injury according to the different prevention programs (χ2(2) = 31.78, P < .001, effect size: Cramer V = 0.23, 1 − β = 0.999). Residual analysis showed that the number of hamstring injuries for period 1 was significantly greater than the expected value (P < .01), whereas that for period 3 was significantly lower than the expected value (P < .01). Conclusion: The incidence of hamstring injuries in sprinters decreased as agility and flexibility were added to strength training. PMID:28210652

  18. The Size and Strength Development in Elite Youth Ice Hockey Players

    Directory of Open Access Journals (Sweden)

    Jeff R. Leiter

    2016-07-01

    Full Text Available Background: Ice hockey is a fast, physical sport that requires high levels of muscular strength, muscular endurance and agility. Objectives: This study was conducted to create a profile including: anthropometric measurement, muscular strength, muscular endurance, lower body jump height and distance, and agility characteristics for elite youth hockey players.  Methods: Pre-season off-ice testing results were retrospectively reviewed from a human performance database.  Variables included height, weight, body fat percentage, grip strength, push-ups/bench press, supine rows, the plank test, vertical jump, standing long jump, hip adductor and abductor strength, and the 5-10-5 shuttle, and. One-way ANOVAs (1group x 4 time and Tukeys post-hoc tests were performed to determine changes in the immediately successive age group (p<0.05. Results: Participants included male Bantam-(age: 13-14 and Midget-(age: 15-17 AAA ice-hockey players (n=260.  Age categories were grouped as 13 years old (yo(n=75, 14 yo (n=70, 15 yo (n=58, and 16-17 yo (n=57.  Increases between successive age groups were observed in the following variables: weight (13, 14, 15 and 16-17 yo, height (13 and 14 yo, left and right grip strength (13, 14, 15, and 16-17 yo, bench press (15 and 16-17 yo, left and right hip abduction (14, 15, and 16-17 yo, and vertical and standing long jump (13, 14, and 15 yo. Total time for the 5-10-5 shuttle run test decreased from 13 to 14yo, and 14 to 15 yo. Conclusion: Changes with age in off-ice performance variables of elite amateur hockey players should be recognized, followed, and addressed during player development to maximize the potential for elite performance and reduce the risk of injury.   Keywords: Athletic Performance, Training, Physical Fitness

  19. Trends in North American newspaper reporting of brain injury in ice hockey.

    Directory of Open Access Journals (Sweden)

    Michael D Cusimano

    Full Text Available The frequency and potential long-term effects of sport-related traumatic brain injuries (TBI make it a major public health concern. The culture within contact sports, such as ice hockey, encourages aggression that puts youth at risk of TBI such as concussion. Newspaper reports play an important role in conveying and shaping the culture around health-related behaviors. We qualitatively studied reports about sport-related TBI in four major North American newspapers over the last quarter-century. We used the grounded-theory approach to identify major themes and then did a content analysis to compare the frequency of key themes between 1998-2000 and 2009-2011. The major themes were: perceptions of brain injury, aggression, equipment, rules and regulations, and youth hockey. Across the full study period, newspaper articles from Canada and America portrayed violence and aggression that leads to TBI both as integral to hockey and as an unavoidable risk associated with playing the game. They also condemned violence in ice hockey, criticized the administrative response to TBI, and recognized the significance of TBI. In Canada, aggression was reported more often recently and there was a distinctive shift in portraying protective equipment as a solution to TBI in earlier years to a potential contributing factor to TBI later in the study period. American newspapers gave a greater attention to 'perception of risks' and the role of protective equipment, and discussed TBI in a broader context in the recent time period. Newspapers from both countries showed similar recent trends in regards to a need for rule changes to curb youth sport-related TBI. This study provides a rich description of the reporting around TBI in contact sport. Understanding this reporting is important for evaluating whether the dangers of sport-related TBI are being appropriately communicated by the media.

  20. Reliability of specific on-ice repeated-sprint ability test for ice-hockey players

    Directory of Open Access Journals (Sweden)

    Karel Hůlka

    2014-06-01

    Full Text Available Background: Repeated sprint ability tests are today widely used to evaluate the performance capability in team sports. Objective: The aim of this study was to determine the reliability of a specific ice hockey test, which indicates the agility and repeated-sprint ability of the players. Methods: Twenty four highly trained junior ice hockey players (age = 17.68 ± 1.52 years; BMI = 23.8 ± 1.92 kg . m-2 participated in the study. Each participant was assessed for specific on-ice repeated-sprint ability test 12 × 54 m with 30 s rest. Intraclass correlation coefficient (association between two repeated measurements and coefficient of variation were calculated to assess the reliability of the test. Results: All intraclass correlation coefficients were .78 for sprint decrement and .98 for total time and the best time, the coefficient of variation was 1.52% for best sprint time, 1.31% for total time and 19.3% for sprint decrement variable. Conclusions: The results suggest the high reliability of the ice hockey agility test expressed by the best sprint time and repeated-sprint ability by the total time and less reliability of sprint decrement.

  1. Combined Plyometric & Strength Training Improves Ice-hockey Players` On-ice Sprint.

    Science.gov (United States)

    Dæhlin, Torstein E; Haugen, Ole C; Haugerud, Simen; Hollan, Ivana; Raastad, Truls; Rønnestad, Bent R

    2016-12-05

    Combined plyometric and strength training have previously been suggested as a strategy to improve skating performance in ice hockey players. However, the effects of combined plyometric and strength training has not been previously been compared to the effects of strength training only. To compare the effects of combined plyometric and strength training on ice hockey players' skating sprint performance with strength training only. Eighteen participants were randomly assigned to two groups that completed 5 strength-training sessions per week for 8 weeks. One group included plyometric exercises at the start of three sessions per week (PLY+ST), whereas the other group included core exercises in the same sessions (ST). Tests of 10- and 35 m skating sprints, horizontal jumping, 1 repetition maximum (1 RM) squat, skating multistage aerobic test (SMAT), maximal oxygen consumption, repeated cycle sprints and body composition were performed before and after the intervention. The participants increased their 1RM squat, lean mass and body mass (P training for 8 weeks was superior to strength training alone on improving 10 m on-ice sprint performance in high-level ice hockey players.

  2. University men's ice hockey: rates and risk of injuries over 6-years.

    Science.gov (United States)

    Rishiraj, N; Lloyd-Smith, R; Lorenz, T; Niven, B; Michel, M

    2009-06-01

    The aim of this study was to determine the injury rates of a Men's Varsity Ice Hockey team over six-years. Data on ice hockey injury rates and profile continue to increase in the hope of assisting with injury prevention. The University of British Columbia Men's Varsity team has been followed prospectively over a six-year period. All student-athletes completed a preseason medical examinations and physiological assessments. The team physician evaluated each injury and the team therapist completed the injury report forms and the attendance records for each player. A total of 46215 player exposures were recorded. The combined injury rate was 3.70 injuries/1000 player game and practice exposures. A statistically significantly higher risk of injury was observed during games and the greatest risk of injury was observed during the second period. Forwards sustained greater percentage of injuries compared to defensemen and goalies. Sprains and strains accounted for 40% of all injuries, followed by concussions (13%). Non-contact injuries were most common, while the anatomy sustaining the most injuries was the head/neck/face region. A high percentage of the recorded injuries required less than seven days to return to full activity. The risk of injury for university ice hockey players is greater during games and is dependant on playing position. Players are prone to sprains and strains, which may not involve any contact. Concussion and knee joint injury rates continue to cause concern.

  3. Acute injuries in soccer, ice hockey, volleyball, basketball, judo, and karate: analysis of national registry data.

    Science.gov (United States)

    Kujala, U M; Taimela, S; Antti-Poika, I; Orava, S; Tuominen, R; Myllynen, P

    1995-12-02

    To determine the acute injury profile in each of six sports and compare the injury rates between the sports. Analysis of national sports injury insurance registry data. Finland during 1987-91. 621,691 person years of exposure among participants in soccer, ice hockey, volleyball, basketball, judo, or karate. Acute sports injuries requiring medical treatment and reported to the insurance company on structured forms by the patients and their doctors. 54,186 sports injuries were recorded. Injury rates were low in athletes aged under 15, while 20-24 year olds had the highest rates. Differences in injury rates between the sports were minor in this adult age group. Overall injury rates were higher in sports entailing more frequent and powerful body contact. Each sport had a specific injury profile. Fractures and dental injuries were most common in ice hockey and karate and least frequent in volleyball. Knee injuries were the most common cause of permanent disability. Based on the defined injury profiles in the different sports it is recommended that sports specific preventive measures should be employed to decrease the number of violent contacts between athletes, including improved game rules supported by careful refereeing. To prevent dental injuries the wearing of mouth guards should be encouraged, especially in ice hockey, karate, and basketball.

  4. Variation in Age and Training on Selected Biochemical Variables of Indian Hockey Players

    Directory of Open Access Journals (Sweden)

    I. Manna

    2010-04-01

    Full Text Available The present study was aimed to find out the variation of age and training on biochemical variables of Indian elite hockey players. A total of 120 hockey players who volunteered for the present study, were equally divided (n=30 into 4 groups: under 16 years (14-15 yrs; under 19 years (16-18 yrs; under 23 years (19-22 yrs; and senior (23-30 yrs. The training sessions were divided into 3 phases: Transition Phase (TP, Preparatory Phase (PP, and Competitive Phase (CP. The training programme consisted of aerobic, anaerobic and skill training; and completed 4 hours in morning and evening sessions, 5 days/week. Selected biochemical parameters were measured and data were analyzed by applying Two-way ANOVA and Post hoc test. The mean values of haemoglobin (Hb, total cholesterol (TC, triglyceride (TG, high density lipoprotein cholesterol (HDL-C and low density lipoprotein cholesterol (LDL-C have been increased significantly (P<0.05 with the advancement of age of players. A significant increase (P<0.05 in serum urea, uric acid and HDL-C and a significant decrease (P<0.05 in Hb, TC, TG and LDL-C have been noted in PP and CP when compared to that of TP. The present study would provide useful information for biochemical monitoring of training of hockey players.

  5. The Hockey Stick and the Climate Wars: Dispatches From The Front Lines

    Science.gov (United States)

    Mann, M. E.

    2011-12-01

    A central figure in the controversy over human-caused climate change has been The Hockey Stick, a simple, easy-to-understand graph my colleagues and I constructed to depict changes in Earth's temperature back to 1000 AD. The graph was featured in the high-profile Summary for Policy Makers of the 2001 report of the Intergovernmental Panel on Climate Change (IPCC), and it quickly became an icon in the debate over human-caused (anthropogenic) climate change. I will tell the story behind the Hockey Stick, using it as a vehicle for exploring broader issues regarding the role of skepticism in science, the uneasy relationship between science and politics, and the dangers that arise when special economic interests and those who do their bidding attempt to skew the discourse over policy-relevant areas of science. In short, I attempt to use the Hockey Stick to cut through the fog of disinformation that has been generated by the campaign to deny the reality of climate change. It is my intent, in so doing, to reveal the very real threat to our future that lies behind it.

  6. Concussion in the international ice hockey World Championships and Olympic Winter Games between 2006 and 2015.

    Science.gov (United States)

    Tuominen, Markku; Hänninen, Timo; Parkkari, Jari; Stuart, Michael J; Luoto, Teemu; Kannus, Pekka; Aubry, Mark

    2017-02-01

    Concussions in sports are a growing concern. This study describes the incidence, injury characteristics and time trends of concussions in international ice hockey. All concussions in the International Ice Hockey Federation (IIHF) World Championships (WC) and Olympic Winter Games were analysed over 9 ice hockey seasons between 2006 and 2015 using a standardised injury reporting system and diagnoses made by the team physicians. A total of 3293 games were played (169 tournaments, 1212 teams, 26 130 players) comprising 142 244 athletic game exposures. The average injury rate (IR) for concussion was 1.1 per 1000 ice hockey player-games for all IIHF WC tournaments. The IR was the highest in the men's WC A-pool tournaments and Olympic Games (IR 1.6). However, the annual IR for concussion in the men's tournaments has been lower than that in the World Junior tournaments since 2012. When a concussion occurred with contact to a flexible board, the IR was 0.2 per 1000 player games. In contrast, the IR was 1.1, if the board and glass were traditional (for the latter, RR 6.44 (95% CI 1.50 to 27.61)). In the men's tournaments, the trend of concussions caused by illegal hits decreased over the study period. After the 4th Consensus Statement on Concussion in Sport was published (2013), none of the concussed players in the men's WC returned to play on the day of injury. The annual risk of concussion in the men's WC has decreased during the study period. This was most likely due to a reduction in illegal hits. The risk of concussion was significantly lower if games were played on rinks with flexible boards and glass. Rink modifications, improved education and strict rule enforcement should be considered by policymakers in international ice hockey. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/.

  7. Effect of Pedagogical Model on Indian and Malaysian Junior Hockey Players’ Decision Making and Skill Execution

    Directory of Open Access Journals (Sweden)

    Sanmuga Nathan

    2015-07-01

    Full Text Available Background: This paper reports comparison of two studies investigated across Malaysia and India using merged pedagogical model (combination Teaching Games for Understanding (TGfU with Tactical Game model (TGM termed as Tactical Model (TM was compared to a semi traditional model termed as Skill Drill Technical (SDT. Objective: The objectives of these two studies were to investigate the effect of these two pedagogical models across two countries using mini-games of 5 versus 5, examining: decision-making and skill execution game situations among junior hockey players in coaching context. Methodology: These two quasi experimental studies comprised of Indian and Malaysian junior elite hockey players age 14±3 years old whereby n =30 players in each country was randomly selected and assigned equally to an quasi experimental group (TM, n= 15, and to SDT group (n=15 players. Result: Results for decision-making on whether to dribble, pass, tackle and score  significant improvement using TM (6.93±6.58 compared to SDT (2.42±3.01, among Indian junior hockey players, F(2,28 =5.84, p<0.05 after intervention. Similar results observed among the Malaysian players too whereby posttest score revealed TM (3.28±.311 while SDT (2.96±4.61. Whereas skill execution result for dribbling, passing, tackling and scoring indicated a significant improvement among Indian hockey players, F (1,28 = 10.00, p <0.05 via  TM (4.62±2.16; compared to with SDT (1.70±1.43. In contrast indicated, TM recorded no significant improvement compared to SDT after intervention F(1,28 = 1.64, p>0.05 among Malaysian players. Conclusion: TM seems to be suitable pedagogical model, however further research should address other parameter of game play in particular the relationship between agility and decision making of hockey game play, and coaches perception, understanding and usage of TM across other Asian countriesKeywords: Tactical model, Teaching Game for Understanding, Tactical Game

  8. Collegiate: Member of a College or Inmate of a Prison?

    Science.gov (United States)

    Dye, Linda; Bing, Robert

    1990-01-01

    How a college governs itself has the potential for building consensus among faculty, administrators, students, and trustees, but hierarchical governance works against positive collegiality in a scholarly community. A model developed by Sherry Arnstein involving levels of citizen participation in urban planning can be adapted to describe governance…

  9. From Crayons to Perfume: Getting beyond Contrived Collegiality

    Science.gov (United States)

    Beatty, Brenda

    2011-01-01

    Based on reflections from over a decade of research, scholarship, and programmatic applications, this article provides evidence of impact from the work of Professor Andy Hargreaves with a specific focus on his concept of contrived collegiality. Explorations into matters of emotion provided an entry point through which the author has addressed the…

  10. Predictors of Collegiate Student-Athletes' Susceptibility to Stereotype Threat

    Science.gov (United States)

    Feltz, Deborah L.; Schneider, Richard; Hwang, Seunghyun; Skogsberg, Nikolaus J.

    2013-01-01

    The present investigation sought to determine the extent to which collegiate student-athletes are susceptible to stereotype threat and the factors that predict it. We proposed a structural equation model (SEM) by which a perceived coach's positive regard for an athlete's academic ability, athletic identity, and academic identity predicts the…

  11. From Crayons to Perfume: Getting beyond Contrived Collegiality

    Science.gov (United States)

    Beatty, Brenda

    2011-01-01

    Based on reflections from over a decade of research, scholarship, and programmatic applications, this article provides evidence of impact from the work of Professor Andy Hargreaves with a specific focus on his concept of contrived collegiality. Explorations into matters of emotion provided an entry point through which the author has addressed the…

  12. Tales of the Unexpected: Coping among Female Collegiate Volleyball Players

    Science.gov (United States)

    Holt, Nicholas L.; Berg, Kylie-Joy; Tamminen, Katherine A.

    2007-01-01

    The purpose of this study was to examine patterns of appraisal, coping, and coping effectiveness in sport. Ten players from a collegiate female volleyball team were interviewed on two occasions, first in the week before a provincial final playoff tournament and in the week following the tournament. Data were transcribed verbatim and subjected to…

  13. Development of a Rubric for Collegiate Jazz Improvisation Performance Assessment

    Science.gov (United States)

    Moore, Kendall Ryan

    2016-01-01

    The purpose of this study was to develop a jazz improvisation rubric for the evaluation of collegiate jazz improvisation. To create this measure, research objectives were devised to investigate the aurally-observed performer-controlled components of improvisation, which aurally-observed components should be evaluated in an improvisatory…

  14. Predictors of Collegiate Student-Athletes' Susceptibility to Stereotype Threat

    Science.gov (United States)

    Feltz, Deborah L.; Schneider, Richard; Hwang, Seunghyun; Skogsberg, Nikolaus J.

    2013-01-01

    The present investigation sought to determine the extent to which collegiate student-athletes are susceptible to stereotype threat and the factors that predict it. We proposed a structural equation model (SEM) by which a perceived coach's positive regard for an athlete's academic ability, athletic identity, and academic identity predicts the…

  15. Quality Assurance Systems, TQM, and the New Collegialism.

    Science.gov (United States)

    Harvey, Lee

    This report discusses the application of the International Organization for Standards's ISO9000 quality assurance standard and Total Quality Management (TQM) to higher education in light of the "new collegialism." It defines the basic elements of ISO9000 and TQM, reviews the strengths and weaknesses of both approaches, and notes efforts…

  16. 38 CFR 21.4272 - Collegiate course measurement.

    Science.gov (United States)

    2010-07-01

    ... measurement. 21.4272 Section 21.4272 Pensions, Bonuses, and Veterans' Relief DEPARTMENT OF VETERANS AFFAIRS... Assessment and Pursuit of Courses § 21.4272 Collegiate course measurement. VA will measure a college level... curriculum, for which credit-hour measurement is sought, has been accepted without reservation by...

  17. Inspiring Academics to Engage in Collegial Socialization: Pedagogical Provocations

    Science.gov (United States)

    Kanuka, Heather; Braga, John

    2011-01-01

    Academics who engage in collegial socialization can benefit in a variety of ways. The challenge, however, is creating a culture which inspires, within a voluntary model, academics to participate in such activities. Teaching development programs have tended to focus on teaching competencies and problem areas through offerings of workshops. It has…

  18. Tales of the Unexpected: Coping among Female Collegiate Volleyball Players

    Science.gov (United States)

    Holt, Nicholas L.; Berg, Kylie-Joy; Tamminen, Katherine A.

    2007-01-01

    The purpose of this study was to examine patterns of appraisal, coping, and coping effectiveness in sport. Ten players from a collegiate female volleyball team were interviewed on two occasions, first in the week before a provincial final playoff tournament and in the week following the tournament. Data were transcribed verbatim and subjected to…

  19. Development of a Rubric for Collegiate Jazz Improvisation Performance Assessment

    Science.gov (United States)

    Moore, Kendall Ryan

    2016-01-01

    The purpose of this study was to develop a jazz improvisation rubric for the evaluation of collegiate jazz improvisation. To create this measure, research objectives were devised to investigate the aurally-observed performer-controlled components of improvisation, which aurally-observed components should be evaluated in an improvisatory…

  20. Concussions Among United States High School and Collegiate Athletes

    Science.gov (United States)

    Gessel, Luke M; Fields, Sarah K; Collins, Christy L; Dick, Randall W; Comstock, R. Dawn

    2007-01-01

    Context: An estimated 300 000 sport-related traumatic brain injuries, predominantly concussions, occur annually in the United States. Sports are second only to motor vehicle crashes as the leading cause of traumatic brain injury among people aged 15 to 24 years. Objective: To investigate the epidemiology of concussions in a nationally representative sample of high school athletes and to compare rates of concussion among high school and collegiate athletes. Design: Descriptive epidemiologic study Setting: 100 United States high schools and 180 US colleges. Patients or Other Participants: United States high school and collegiate athletes. Main Outcome Measure(s): Data from 2 injury surveillance systems, High School Reporting Information Online (RIO) and the National Collegiate Athletic Association Injury Surveillance System, were analyzed to calculate rates, describe patterns, and evaluate potential risk factors for sport-related concussion. Results: Concussions represented 8.9% (n = 396) of all high school athletic injuries and 5.8% (n = 482) of all collegiate athletic injuries. Among both groups, rates of concussions were highest in the sports of football and soccer. In high school sports played by both sexes, girls sustained a higher rate of concussions, and concussions represented a greater proportion of total injuries than in boys. In all sports, collegiate athletes had higher rates of concussion than high school athletes, but concussions represented a greater proportion of all injuries among high school athletes. Conclusions: Sport-related injury surveillance systems can provide scientific data to drive targeted injury-prevention projects. Developing effective sport-related concussion preventive measures depends upon increasing our knowledge of concussion rates, patterns, and risk factors. PMID:18174937

  1. High Prevalence of Hypertension Among Collegiate Football Athletes

    Science.gov (United States)

    Karpinos, Ashley Rowatt; Roumie, Christianne L.; Nian, Hui; Diamond, Alex B.; Rothman, Russell L.

    2014-01-01

    Background The prevalence of hypertension among collegiate football athletes is not well described. Methods and Results A retrospective cohort of all male athletes who participated in varsity athletics at a National Collegiate Athletic Association Division I university between 1999–2012 was examined through chart review. Mandatory annual preparticipation physical examinations included blood pressure, body mass index, medication use, and supplement use. Prevalence of hypertension was compared between football and non-football athletes. A mixed-effects linear regression model examined change in blood pressure over time. 636 collegiate athletes, including 323 football players, were identified. In the initial year of athletic participation, 19.2% of football athletes had hypertension and 61.9% had prehypertension. The prevalence of hypertension was higher among football athletes than non-football athletes in their initial (19.2% vs. 7.0%, Pfootball athletes in the initial year (AOR 2.28, 95% CI 1.21 to 4.30) but not the final year (AOR 1.25, 95% CI 0.69 to 2.28). Over the course of their collegiate career, football athletes had an annual decrease in systolic blood pressure (−0.82 mmHg, P=0.002), while non-football athletes did not (0.18 mmHg, P=0.58). Conclusions Hypertension and prehypertension were common among collegiate football athletes, and football athletes were more likely to have hypertension than male non-football athletes. This presents a potential cardiovascular risk in a young population of athletes. Strategies for increasing awareness, prevention and treatment are needed. PMID:24221829

  2. Teacher Professional Learning Communities: Going beyond Contrived Collegiality toward Challenging Debate and Collegial Learning and Professional Growth

    Science.gov (United States)

    Owen, Susanne

    2014-01-01

    Professional learning community (PLC) is a current "buzz" term in business and educational contexts, seemingly referring to anything from decision making committees to regular meeting groups or collegial learning teams. This paper explores the concept of a PLC within three significantly innovative schools, based on an examination of the…

  3. Expected Time to Return to Athletic Participation Following Stress Fracture in Division I Collegiate Athletes

    Science.gov (United States)

    Jamieson, Marissa; Everson, Sonsecharae; Siegel, Courtney; Miller, Timothy Lee

    2016-01-01

    Objectives: The objective of this study was to evaluate and determine the expected time to return to athletic participation in Division I collegiate Track and Field athletes. Methods: All stress fractures diagnosed in athletes on a single Division I collegiate men’s and women’s track and field/ cross-country team were recorded over a 4-year period. Site and severity of the injury were recorded and graded based on the Kaeding-Miller Classification System for stress fractures. Time to return to full unrestricted athletic participation was recorded for each athlete and correlated with the site and severity grade of the injury. Time to return to athletic participation was also analyzed for gender differences. Results: Fifty-seven stress fractures were diagnosed in 38 athletes over a 4-year period. Thirty-seven of these injuries occurred in women; twenty in men. Mean time to return to participation in women was 13.9 weeks and 11.2 weeks in men. There were 10 athletes who sustained recurrent or multiple stress fractures. Thirty-three stress fractures occurred in the tibia, and 10 occurred in the 2nd through 4th metatarsals. Three occurred in the 5th metatarsal, 6 in the tarsal bones (2 navicular), and 5 in the pelvis. Mean times to return to athletic activity based on site of injury and with extreme outliers removed were as follows: tibia- 13.3 weeks, 2nd through 4th metatarsals- 11.7 weeks, 5th metatarsal- 11.7 weeks, tarsals- 12.1 weeks, and pelvis- 13.0 weeks. There were 31 grade 2 stress fractures, 11 grade 3 stress fractures, and two grade 5 stress fractures that occurred bilaterally in the same patient. Mean times to return to athletic participation again with extreme outliers excluded were as follows: Grade 2- 12.3 weeks, Grade 3- 14.1 weeks, and Grade 5- 17 weeks. There were no Grade 4 (displaced) stress fractures diagnosed in this cohort of patients. Conclusion: Stress injuries to bone occur frequently in track and field athletes. Based on data collected

  4. Technical training of highly skilled hockey players on the grass in the Context of Model-purpose approach

    Directory of Open Access Journals (Sweden)

    Perepelytsya O.A.

    2013-08-01

    Full Text Available The possibilities of improving sportsmanship hockey on grass-based modeling-based approach. The aim is to study the dynamics of technical preparedness of highly qualified hockey players on grass under the influence of experimental summer system of development a training process. The experiment involved 21 athlete (average age - 23.7 years. Installed speaker technical training of highly qualified hockey players on grass during the annual macrocycle. The identified model parameters of technical preparedness of the players on each of the main stages of the annual training cycle. Reserves in terms of technical training are seen in increasing performance testing exercises on speed. It is recommended to eliminate the imbalance in the use of specific and nonspecific means.

  5. Examining the relationship between relative age, competition level, and dropout rates in male youth ice-hockey players.

    Science.gov (United States)

    Lemez, S; Baker, J; Horton, S; Wattie, N; Weir, P

    2014-12-01

    The relative age effect suggests that athletes born in the first two quartiles of a given selection year experience a selection advantage and therefore a greater opportunity for success. We describe two studies examining the relationship between relative age, competition level, and dropout rates of Ontario Minor Hockey Association male ice-hockey players from ages 10 to 15 years (n = 14 325). In Study 1, dropout was highest among players born in quartiles three and four [χ(2) (3) = 16.32, P less movement between competition levels compared to retained players. This study confirms a relationship between relative age and dropout from ice-hockey and adds further depth to our understanding of this persistent phenomenon.

  6. THE ROLE OF AEROBIC CAPACITY IN HIGH-INTENSITY INTERMITTENT EFFORTS IN ICE-HOCKEY

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    A. Stanula

    2014-08-01

    Full Text Available The primary objective of this study was to determine a relationship between aerobic capacity ( ·VO2max and fatigue from high-intensity skating in elite male hockey players. The subjects were twenty-four male members of the senior national ice hockey team of Poland who played the position of forward or defence. Each subject completed an on-ice Repeated-Skate Sprint test (RSS consisting of 6 timed 89-m sprints, with 30 s of rest between subsequent efforts, and an incremental test on a cycle ergometer in the laboratory, the aim of which was to establish their maximal oxygen uptake ( ·VO2max. The analysis of variance showed that each next repetition in the 6x89 m test was significantly longer than the previous one (F5,138=53.33, p<0.001. An analysis of the fatigue index (FI calculated from the times recorded for subsequent repetitions showed that the value of the FI increased with subsequent repetitions, reaching its maximum between repetitions 5 and 6 (3.10±1.16%. The total FI was 13.77±1.74%. The coefficient of correlation between ·VO2max and the total FI for 6 sprints on the distance of 89 m (r =–0.584 was significant (p=0.003. The variance in the index of players’ fatigue in the 6x89 m test accounted for 34% of the variance in ·VO2max. The 6x89 m test proposed in this study offers a high test-retest correlation coefficient (r=0.78. Even though the test is criticized for being too exhaustive and thereby for producing highly variable results it still seems that it was well selected for repeated sprint ability testing in hockey players.

  7. Metabolic power and energy expenditure in an international men's hockey tournament.

    Science.gov (United States)

    Polglaze, Ted; Dawson, Brian; Buttfield, Alec; Peeling, Peter

    2017-02-20

    The purpose of this study was to ascertain the typical metabolic power characteristics of elite men's hockey, and whether changes occur within matches and throughout an international tournament. National team players (n = 16), divided into 3 positional groups (strikers, midfielders, defenders), wore Global Positioning System devices in 6 matches. Energetic (metabolic power, energy expenditure) and displacement (distance, speed, acceleration) variables were determined, and intensity was classified utilising speed, acceleration and metabolic power thresholds. Midfielder's average metabolic power (11.8 ± 1.0 W · kg(-)(1)) was similar to strikers (11.1 ± 1.3 W · kg(-)(1)) and higher than defenders (10.8 ± 1.2 W · kg(-)(1), P = 0.001). Strikers (29.71 ± 3.39 kJ · kg(-)(1)) expended less energy than midfielders (32.18 ± 2.67 kJ · kg(-)(1), P = 0.014) and defenders (33.23 ± 3.96 kJ · kg(-)(1), P 20 W · kg(-)(1)). International hockey matches are intense and highly intermittent; however, intensity is maintained throughout matches and over a tournament. In isolation, displacement measures underestimate the amount of high-intensity activity, whereas the integration of instantaneous speed and acceleration provides a more comprehensive assessment of the demands for variable-speed activity typically occurring in hockey matches.

  8. Effect of bodychecking on injury rates among minor ice hockey players

    Science.gov (United States)

    Hagel, Brent E.; Marko, Josh; Dryden, Donna; Couperthwaite, Amy B.; Sommerfeldt, Joseph; Rowe, Brian H.

    2006-01-01

    Background In 2002, Hockey Canada changed the age classifications for minor ice hockey. Previously, 10- and 11-year-old children played at the Atom level (no bodychecking), and 12- and 13-year-old children played at the Peewee level (bodychecking allowed). After the policy change, 11-year-old players were placed in the Peewee division with 12-year-old players; the Atom division included 9- and 10-year-old players. The objective of this study was to examine the effect that the policy change had on injuries to 11-year-old players and compare this information with injury trends among 10- and 12-year-old players. Methods The study location was the Capital Health region, which serves the greater Edmonton area in Alberta. Capital Health maintains a database of all emergency department visits in the region. A search of the database identified 10-, 11- and 12-year-old players admitted to 7 emergency departments with hockey-related injuries during the 2 years before and the 2 years after the policy change. We also conducted a chart review for the 11-year-old players, extracting detailed information on the nature and circumstances of their injuries for the same period. Results The rate of injuries sustained by 11-year-old children playing at the Peewee level (with bodychecking) increased significantly compared with the rate among 11-year-0ld players at the Atom level (rate ratio [RR] 1.9, 95% confidence interval [CI] 1.4–2.4). The rate of severe injuries was more than 2 times greater among 11-year-old Peewee players than among 11-year-old Atom players (RR 2.4, 95% CI 1.6–3.6). Injury rates among the 10-year-old players (bodychecking never allowed) and the 12-year-old players (bodychecking always allowed) changed little over the study period. Interpretation The introduction of bodychecking to 11-year-old players was associated with a large increase in injury rates. From a public health perspective, the age at which bodychecking is introduced in minor hockey should be

  9. El entrenamiento propioceptivo como prevención del esguince de tobillo en el hockey

    OpenAIRE

    García Zangari, Lucía

    2014-01-01

    Objetivo: Considerando que los kinesiólogos, en su rol de agentes de la salud, deben desempeñarse en áreas kinefilácticas realizando tareas de prevención de lesiones desarrollando y aplicando sus conocimientos, el siguiente trabajo de investigación se centro en conocer como influye el entrenamiento propioceptivo en la estabilidad de tobillo de las jugadoras de hockey con el fin de utilizarlo como método preventivo de lesiones. Los objetivos planteados permiten conocer la estabilidad de tobill...

  10. El entrenamiento propioceptivo como prevención del esguince de tobillo en el hockey

    OpenAIRE

    García Zangari, Lucía

    2014-01-01

    Objetivo: Considerando que los kinesiólogos, en su rol de agentes de la salud, deben desempeñarse en áreas kinefilácticas realizando tareas de prevención de lesiones desarrollando y aplicando sus conocimientos, el siguiente trabajo de investigación se centro en conocer como influye el entrenamiento propioceptivo en la estabilidad de tobillo de las jugadoras de hockey con el fin de utilizarlo como método preventivo de lesiones. Los objetivos planteados permiten conocer la estabilidad de tobill...

  11. Internet dependence in the collegiate population: the role of shyness.

    Science.gov (United States)

    Lavin, Michael J; Yuen, C Nathalie; Weinman, Michael; Kozak, Kelly

    2004-08-01

    Low sensation seeking and loneliness have been associated with collegiate Internet dependence. In an attempt to further explicate the factors associated with collegiate Internet dependence, interpersonal shyness (both online and in face-to-face [FTF] interactions) was explored. An online questionnaire was used to assess Internet dependency and shyness. The results demonstrated the predicted interaction such that shyness level for nondependents did not differ online or in FTF interactions. However, dependents' shyness was greater in FTF interactions relative to online interpersonal exchanges. The results were discussed in terms of how various Internet resources (e.g., e-mail, chat rooms, and instant messages) can be used to ameliorate shyness and how such negatively reinforced behavior could foster dependence.

  12. Teaching public health through a pedagogy of collegiality.

    Science.gov (United States)

    Chávez, Vivian; Turalba, Ruby-Asuncion N; Malik, Savita

    2006-07-01

    Curriculum development in masters of public health programs that effectively meets the complex challenges of the 21st century is an important part of public health education and requires purposeful thinking. Current approaches to training the public health work-force do not adequately prepare professionals to be culturally competent in addressing health disparities. Principles of community-based participatory research highlight the importance of building relationships of mutual accountability and emphasize collegial teaching. We present background and theoretical foundations for a pedagogy of collegiality and describe specific teaching methods, classroom activities, and key assignments organized around 4 essential features: principles of community organizing, building community and valuing diversity, engaging the senses, and writing across the curriculum.

  13. Sex Differences and the Incidence of Concussions Among Collegiate Athletes

    Science.gov (United States)

    Swanik, C. Buz; Sachs, Michael L.

    2003-01-01

    Objective: To compare sex differences regarding the incidence of concussions among collegiate athletes during the 1997–1998, 1998–1999, and 1999–2000 seasons. Design and Setting: A cohort study of collegiate athletes using the National Collegiate Athletic Association (NCAA) Injury Surveillance System; certified athletic trainers recorded data during the 1997–2000 academic years. Subjects: Collegiate athletes participating in men's and women's soccer, lacrosse, basketball, softball, baseball, and gymnastics. Measurements: Certified athletic trainers from participating NCAA institutions recorded weekly injury and athlete-exposure data from the first day of preseason practice to the final postseason game. Injury rates and incidence density ratios were computed. Incidence density ratio is an estimate of the relative risk based on injury rates per 1000 athlete-exposures. Results: Of 14 591 reported injuries, 5.9% were classified as concussions. During the 3-year study, female athletes sustained 167 (3.6%) concussions during practices and 304 (9.5%) concussions during games, compared with male athletes, who sustained 148 (5.2%) concussions during practices and 254 (6.4%) concussions during games. Chi-square analysis revealed significant differences between male and female soccer players (χ21 = 12.99, P = .05) and basketball players (χ21 = 5.14, P = .05). Conclusions: Female athletes sustained a higher percentage of concussions during games than male athletes. Of all the sports, women's soccer and men's lacrosse were found to have the highest injury rate of concussions. Incidence density ratio was greatest for male and female soccer players. PMID:14608434

  14. Nutritional Habits & Knowledge in the Division I Collegiate Football Player

    OpenAIRE

    Hale, Mallory

    2013-01-01

    Objectives: Athlete’s nutritional habits and knowledge can directly affect their performance. The purpose of this study is to investigate the nutritional habits and knowledge of the Division I collegiate football player. Methods: The participants of this study are male Division I college football players at Utah State University. The athletes included 45 players ranging from 18-26 and include freshman through seniors. Results: Over eighty six percent of the athletes were unaware that a ...

  15. Epidemiology of Overuse and Acute Injuries Among Competitive Collegiate Athletes

    Science.gov (United States)

    Yang, Jingzhen; Tibbetts, Abigail S.; Covassin, Tracey; Cheng, Gang; Nayar, Saloni; Heiden, Erin

    2012-01-01

    Context: Although overuse injuries are gaining attention, epidemiologic studies on overuse injuries in male and female collegiate athletes are lacking. (70.7%) acute injuries were reported. The overall injury rate was Objective: To report the epidemiology of overuse injuries sustained by collegiate athletes and to compare the rates of overuse and acute injuries. Design: Descriptive epidemiology study. Setting: A National Collegiate Athletic Association Division I university. Patients or Other Participants: A total of 1317 reported injuries sustained by 573 male and female athletes in 16 collegiate sports teams during the 2005–2008 seasons. Main Outcome Measure(s): The injury and athlete-exposure (AE) data were obtained from the Sports Injury Monitoring System. An injury was coded as either overuse or acute based on the nature of injury. Injury rate was calculated as the total number of overuse (or acute) injuries during the study period divided by the total number of AEs during the same period. Results: A total of 386 (29.3%) overuse injuries and 931 63.1 per 10000 AEs. The rate ratio (RR) of acute versus overuse injuries was 2.34 (95% confidence interval [CI] = 2.05, 2.67). Football had the highest RR (RR = 8.35, 95% CI = 5.38, 12.97), and women's rowing had the lowest (RR = 0.75, 95% CI = 0.51, 1.10). Men had a higher acute injury rate than women (49.8 versus 38.6 per 10000 AEs). Female athletes had a higher rate of overuse injury than male athletes (24.6 versus 13.2 per 10000 AEs). More than half of the overuse injuries (50.8%) resulted in no time loss from sport. Conclusions: Additional studies are needed to examine why female athletes are at greater risk for overuse injuries and identify the best practices for prevention and rehabilitation of overuse injuries. PMID:22488286

  16. Practice type effects on head impact in collegiate football.

    Science.gov (United States)

    Reynolds, Bryson B; Patrie, James; Henry, Erich J; Goodkin, Howard P; Broshek, Donna K; Wintermark, Max; Druzgal, T Jason

    2016-02-01

    OBJECT IVE: This study directly compares the number and severity of subconcussive head impacts sustained during helmet-only practices, shell practices, full-pad practices, and competitive games in a National Collegiate Athletic Association (NCAA) Division I-A football team. The goal of the study was to determine whether subconcussive head impact in collegiate athletes varies with practice type, which is currently unregulated by the NCAA. Over an entire season, a cohort of 20 collegiate football players wore impact-sensing mastoid patches that measured the linear and rotational acceleration of all head impacts during a total of 890 athletic exposures. Data were analyzed to compare the number of head impacts, head impact burden, and average impact severity during helmet-only, shell, and full-pad practices, and games. Helmet-only, shell, and full-pad practices and games all significantly differed from each other (p ≤ 0.05) in the mean number of impacts for each event, with the number of impacts being greatest for games, then full-pad practices, then shell practices, and then helmet-only practices. The cumulative distributions for both linear and rotational acceleration differed between all event types (p football players.

  17. Iron status of female collegiate athletes involved in different sports.

    Science.gov (United States)

    Gropper, Sareen S; Blessing, Daniel; Dunham, Kim; Barksdale, Jeffrey M

    2006-01-01

    Iron status was assessed in 70 female athletes aged 18-25 yr participating in collegiate cross-country track, tennis, softball, swimming, soccer, basketball, and gymnastics. No significant differences in mean hemoglobin, hematocrit, serum iron, total iron-binding capacity, transferrin saturation, and ferritin were found among teams. The mean concentrations of each parameter for each of the teams were within the normal ranges. However, several athletes from different sports had suboptimal iron status indexes. Of 17 athletes with a serum ferritin concentration iron concentrations (athletes failed to consume two-thirds of the Recommended Dietary Allowance for iron and exhibited suboptimal serum concentrations of ferritin, iron, and/or transferrin saturation. Of nine athletes taking iron supplements, one exhibited suboptimal iron status. In summary, nonanemic iron depletion was present among female collegiate athletes involved in many different sports and in all years of participation (freshmen, sophomore, junior, and senior athletes). Female athletes should continue to be individually and routinely evaluated for nutritional deficiencies throughout their collegiate athletic careers.

  18. Disorders of the female athlete triad among collegiate athletes.

    Science.gov (United States)

    Beals, Katherine A; Manore, Melinda M

    2002-09-01

    This study examined the prevalence of and relationship between the disorders of the female athlete triad in collegiate athletes participating in aesthetic, endurance, or team/anaerobic sports. Participants were 425 female collegiate athletes from 7 universities across the United States. Disordered eating, menstrual dysfunction, and musculoskeletal injuries were assessed by a health/medical, dieting and menstrual history questionnaire, the Eating Attitudes Test (EAT-26), and the Eating Disorder Inventory Body Dissatisfaction Subscale (EDI-BD). The percentage of athletes reporting a clinical diagnosis of anorexia and bulimia nervosa was 3.3% and 2.3%, respectively; mean ( SD) EAT and EDI-BD scores were 10.6 9.6 and 9.8 7.6, respectively. The percentage of athletes with scores indicating "at-risk" behavior for an eating disorder were 15.2% using the EAT-26 and 32.4% using the EDI-BD. A similar percentage of athletes in aesthetic, endurance, and team/anaerobic sports reported a clinical diagnosis of anorexia or bulimia. However, athletes in aesthetic sports scored higher on the EAT-26 (13.5 10.9) than athletes in endurance (10.0 9.3) or team/anaerobic sports (9.9 9.0, p athletes in aesthetic versus endurance or team/anaerobic sports scored above the EAT-26 cut-off score of 20 (p athletes not using oral contraceptives, and there were no group differences in the prevalence of self-reported menstrual irregularity. Muscle and bone injuries sustained during the collegiate career were reported by 65.9% and 34.3% of athletes, respectively, and more athletes in aesthetic versus endurance and team/anaerobic sports reported muscle (p =.005) and/or bone injuries (p Athletes "at risk" for eating disorders more frequently reported menstrual irregularity (p =.004) and sustained more bone injuries (p =.003) during their collegiate career. These data indicate that while the prevalence of clinical eating disorders is low in female collegiate athletes, many are "at risk" for an eating

  19. Motivational climate, goal orientation, perceived sport ability, and enjoyment within Finnish junior ice hockey players.

    Science.gov (United States)

    Jaakkola, T; Ntoumanis, N; Liukkonen, J

    2016-01-01

    The aim of this study was to investigate the relations among situational motivational climate, dispositional approach and avoidance achievement goals, perceived sport ability, and enjoyment in Finnish male junior ice hockey players. The sample comprised 265 junior B-level male players with a mean age of 17.03 years (SD = 0.63). Players filled questionnaires tapping their perceptions of coach motivational climate, achievement goals, perceived sport ability, and enjoyment. For the statistical analysis, players were divided into high and low perceived sport ability groups. Multigroup structural equation modeling (SEM) revealed an indirect path from task-involving motivational climate via task-approach goal to enjoyment. Additionally, SEM demonstrated four other direct associations, which existed in both perceived ability groups: from ego-involving motivational climate to ego-approach and ego-avoidance goals; from ego-approach goal to ego-avoidance goal; and from task-avoidance goal to ego-avoidance goal. Additionally, in the high perceived sport ability group, there was an association from task-involving motivational climate to enjoyment. The results of this study reveal that motivational climate emphasizing effort, personal development and improvement, and achievement goal mastering tasks are significant elements of enjoyment in junior ice hockey. © 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  20. Moral disengagement in the legitimation and realization of aggressive behavior in soccer and ice hockey.

    Science.gov (United States)

    Traclet, Alan; Moret, Orlan; Ohl, Fabien; Clémence, Alain

    2015-03-01

    The aim of the present study was to verify that the level of tolerance for aggression is higher in a collective context than in an individual context (polarization effect), and to test the association between moral disengagement, team and self-attitudes toward aggression, and tolerance and realization of aggressive acts in Swiss male soccer and ice hockey. In individual or collective answering conditions, 104 soccer and 98 ice hockey players viewed videotaped aggressive acts and completed a questionnaire, including measures of the perceived legitimacy of videotaped aggression, of the teammates, coach, and self attitudes toward transgressions (modified TNQ), of the moral disengagement in sport (modified MDSS-S), and of self-reported aggressive behavior. A multilevel analysis confirmed a strong polarization effect on the perception of instrumental aggression, the videotaped aggressive acts appearing more tolerated in the collective than in the individual answering condition. Using a structural equation modeling, we found that the moral disengagement, which mediates the effects of perceived coach and ego attitudes toward transgressions, correlates positively with the tolerance of hostile aggression within teams, and with the level of aggressive acts reported by the participants. Aggr. Behav. Aggr. Behav. 42:123-133, 2015. © 2014 Wiley Periodicals, Inc.

  1. Effect of Short Term Balance Training on Postural Stability in Ice Hockey Players

    Directory of Open Access Journals (Sweden)

    Pavol Čech

    2015-08-01

    Full Text Available Postural stability is one of latent factors affecting game performance of an individual to a certain extent. The presented study deals with monitoring changes of postural stability in ice hockey players after eight week’s balance training. The screened sample consisted of junior category ice hockey players divided into experimental (n = 8 and reference groups (n = 8. Postural stability was measured using a stabilographic method on the AMTI AccuSwayPLUS force platform. The level of postural stability was assessed in three tests, namely bipedal stance with and without sight control and bipedal stance with reduced proprioception using the parameters of 95% confidence ellipse, path of CoP and mean velocity of CoP. The level of monitored stability parameters did not indicate any significant differences between the groups in any of the tests at the level of significance α = 0.05. Comparing postural stability of the experimental group between pre-test and post-test showed significant differences in the test without sight control and the test with reduced proprioception in lCoP and vCoP parameters (Z = 2.1004; α ˂ 0.05. Regarding the reference group, no significant changes of the level of postural stability between the pre-test and post-test were found in any of the parameters (Z = 0.3652 to 1.8257; α ˃ 0.05.

  2. Development of a hockey-specific, skate-treadmill VO2 max protocol.

    Science.gov (United States)

    Dreger, R W; Quinney, H A

    1999-12-01

    The purpose of this study was to investigate a protocol for the determination of VO2 max utilizing a motor-driven skate treadmill (ST). On separate days, 6 male hockey players completed a ST and a cycle ergometer (BK) VO2 max protocol. The results showed no significant difference between the ST and BK protocols for relative (60.4 +/- 5.09 vs. 59.0 +/- 8.31 ml.kg-1.min-1) and absolute VO2 max values (4.51 +/- 0.50 vs. 4.39 +/- 0.59 L.min-1), respectively. Significantly higher HR max was recorded during the ST protocol (202.3 +/- 4.27 vs. 200.7 +/- 4.55 b.min-1) (p < 0.05). Peak VE and VT were nonsignificant between the two conditions. However, peak f was higher for the ST protocol (63.0 +/- 7.56 vs. 60.2 +/- 7.76 breath.min-1) (p < 0.05). Although the physiological response to both protocols was similar, the ST protocol replicates a hockey stride, which may provide more applicable information for the development of training programs.

  3. RECREATIONAL ICE HOCKEY INJURIES IN ADULT NON-CHECKING LEAGUES: A UNITED STATES PERSPECTIVE

    Directory of Open Access Journals (Sweden)

    Douglas J. Mattson

    2005-03-01

    Full Text Available The purpose of this study was to analyze injuries among adult recreational ice hockey players. This was an observational prospective cohort study with data collected on injuries sustained during one season in the adult recreational ice hockey leagues of Oneida County, NY. The injury incidence rate was found to be 12.2/1000 player-exposures. The most common anatomic region injured was the head/neck/face (35%. Collisions were most often reported as the mechanism of injury (44%. Fracture was the most common diagnosis. Of players wearing face protection (full cage or shield, or partial visor/half shield, none suffered facial injuries, while all facial injuries reported were to players not wearing facial protection. The concussion rate was 1.1/1000 player-exposures. A lack of protective equipment was associated with 38% of injuries and 24% of injuries involved penalties. A history of prior injuries was found in 89% of injured players with 28% re-injuring the same body part. This study's findings suggested various strategies to address player injuries such as mandatory full facial protection and shoulder pads, strict enforcement of game rules, and game rule modifications (no body checking. Further research is needed on the role of preventive rehabilitation in players with previous injury history.

  4. High-intensity interval training has positive effects on performance in ice hockey players.

    Science.gov (United States)

    Naimo, M A; de Souza, E O; Wilson, J M; Carpenter, A L; Gilchrist, P; Lowery, R P; Averbuch, B; White, T M; Joy, J

    2015-01-01

    In spite of the well-known benefits that have been shown, few studies have looked at the practical applications of high-intensity interval training (HIIT) on athletic performance. This study investigated the effects of a HIIT program compared to traditional continuous endurance exercise training. 24 hockey players were randomly assigned to either a continuous or high-intensity interval group during a 4-week training program. The interval group (IG) was involved in a periodized HIIT program. The continuous group (CG) performed moderate intensity cycling for 45-60 min at an intensity that was 65% of their calculated heart rate reserve. Body composition, muscle thickness, anaerobic power, and on-ice measures were assessed pre- and post-training. Muscle thickness was significantly greater in IG (p=0.01) when compared to CG. The IG had greater values for both ∆ peak power (p<0.003) and ∆ mean power (p<0.02). Additionally, IG demonstrated a faster ∆ sprint (p<0.02) and a trend (p=0.08) for faster ∆ endurance test time to completion for IG. These results indicate that hockey players may utilize short-term HIIT to elicit positive effects in muscle thickness, power and on-ice performance.

  5. Estimation of safe doses: critical review of the hockey stick regression method

    Energy Technology Data Exchange (ETDEWEB)

    Yanagimoto, T.; Yamamoto, E.

    1979-10-01

    The hockey stick regression method is a convenient method to estimate safe doses, which is a kind of regression method using segmented lines. The method seems intuitively to be useful, but needs the assumption of the existence of the positive threshold value. The validity of the assumption is considered to be difficult to be shown. The alternative methods which are not based on the assumption, are given under suitable dose-response curves by introducing a risk level. Here the method using the probit model is compared with the hockey stick regression method. Computational results suggest that the alternative method is preferable. Furthermore similar problems in the case that response is measured as a continuous value are also extended. Data exemplified are concerned with relations of SO/sub 2/ to simple chronic bronchitis, relations of photochemical oxidants to eye discomfort and residual antibiotics in the lever of the chicks. These data was analyzed by the original authors under the assumption of the existence of the positive threshold values.

  6. Campo de hockey Mariñamansa. Orense (España

    Directory of Open Access Journals (Sweden)

    García Tolosana, Carlos

    2000-06-01

    Full Text Available This article concerns the construction of a Hockey Court made of artificial green and the building where is located the changing room. The arrangement of the surrounding land and the forecast of the necessary room lo allow the construction of a complementary building where the gymnasium will be located, as well as the Federation headquarters, classrooms, a center lo control drugs and some warehouses, are also foreseen.La actuación de que se trata se concreta en la construcción de un Campo de Hockey de Hierba Artificial y del edificio de vestuarios que lo apoya y complementa. También se contempla la ordenación del entorno próximo y la previsión de espacio para permitir la construcción de un edificio complementario en el que ubicar un gimnasio, los locales de la federación, aulas, un centro de control de dopaje y una dotación de almacenes.

  7. Effects of Short Term Camp Periods on Aerobic and Anaerobic Performance Parameters in Ice Hockey National Team Athletes

    Science.gov (United States)

    Eler, Serdar

    2016-01-01

    This study was conducted for determining the effects of trainings, applied to athletes during short term camp period, on their aerobic and anaerobic performance. Measurements were made by the participation of 28 volunteer male ice hockey national team players. During the 15-day camp period, 10-minute running and stretching for warming and then…

  8. Effects of Carbohydrate Intake Before and During An Ice Hockey Game on Blood and Muscle Energy Substrates.

    Science.gov (United States)

    Simard, Clermont; And Others

    1988-01-01

    Study of the effect of a supplemental carbohydrate intake for seven elite ice hockey players before and during a game demonstrated that the supplement could result in less glycogen usage per distance skated, which had important implications for athletes who may participate in more than one game a day. (Author/CB)

  9. Development and Validation of a Method for Determining Tridimensional Angular Displacements with Special Applications to Ice Hockey Motions.

    Science.gov (United States)

    Gagnon, Micheline; And Others

    1983-01-01

    A method for determining the tridimensional angular displacement of skates during the two-legged stop in ice hockey was developed and validated. The angles were measured by geometry, using a cinecamera and specially equipped skates. The method provides a new tool for kinetic analyses of skating movements. (Authors/PP)

  10. A prospective study of physician-observed concussions during junior ice hockey: implications for incidence rates.

    Science.gov (United States)

    Echlin, Paul Sean; Tator, Charles H; Cusimano, Michael D; Cantu, Robert C; Taunton, Jack E; Upshur, Ross E G; Hall, Craig R; Johnson, Andrew M; Forwell, Lorie A; Skopelja, Elaine N

    2010-11-01

    The objective of this study was to measure the incidence of concussion (scaled relative to number of athlete exposures) and recurrent concussion within 2 teams of fourth-tier junior ice hockey players (16-21 years old) during 1 regular season. A prospective cohort study called the Hockey Concussion Education Project was conducted during 1 junior ice hockey regular season (2009-2010) involving 67 male fourth-tier ice hockey players (mean age 18.2 ± 1.2 years, range 16-21 years) from 2 teams. Prior to the start of the season, every player underwent baseline assessments using the Sideline Concussion Assessment Tool 2 (SCAT2) and the Immediate Post-Concussion Assessment and Cognitive Test (ImPACT). The study protocol also required players who entered the study during the season to complete baseline SCAT2 and ImPACT testing. If the protocol was not followed, the postinjury test results of a player without true baseline test results would be compared against previously established age and gender group normative levels. Each regular season game was observed by a qualified physician and at least 1 other neutral nonphysician observer. Players who suffered a suspected concussion were evaluated at the game. If a concussion diagnosis was made, the player was subsequently examined in the physician's office for a full clinical evaluation and the SCAT2 and ImPACT were repeated. Based on these evaluations, players were counseled on the decision of when to return to play. Athlete exposure was defined as 1 game played by 1 athlete. Twenty-one concussions occurred during the 52 physician-observed games (incidence 21.5 concussions per 1000 athlete exposures). Five players experienced repeat concussions. No concussions were reported during practice sessions. A concussion was diagnosed by the physician in 19 (36.5%) of the 52 observed games. One of the 5 individuals who suffered a repeat concussion sustained his initial concussion in a regular season game that was not observed by a

  11. Individualization as one of the directions of optimization training process of hockey players at the age of 14-16 years old

    Directory of Open Access Journals (Sweden)

    Kugayevskiy S.A.

    2012-01-01

    Full Text Available Material about the level of development of training process in hockey is resulted. Directions of construction of training process of hockey players, applications of different facilities and methods of preparation are considered. Opinions of specialists in this type of sport are studied. The ways of optimization of training process are resulted. It is expounded information about the changes of indexes of D&K-test of testing of hockey players at the individual construction of seasonal preparation and in transition on the command training program. Loadings given about different influence are confirmed with one orientation on the sportsmen of different biotpower groups of D&K-test.

  12. Organizational Structure, Collegial Trust, and College Faculty Teaching Efficacy: A Case Study

    Science.gov (United States)

    Okpogba, Desmond

    2011-01-01

    The purpose of this mixed-method study was to explore the relationship between faculty self-efficacy, organizational structure, and collegial trust. The concepts of teacher self-efficacy, organizational structure, and collegial trust were used to investigate any possible empirical relationships existing between these variables in a private,…

  13. Prevalence of Overweight and Obesity in Collegiate American Football Players, by Position

    Science.gov (United States)

    Mathews, Emily Millard; Wagner, Dale R.

    2008-01-01

    Objective: The authors' purpose in this study was to determine overweight and obesity prevalence in a collegiate football team. Participants: Eighty-five National Collegiate Athletic Association (NCAA) Division I football players volunteered to participate. Methods: The authors measured height, weight, and waist circumference (WC), and estimated…

  14. Enhancing Appearance and Sports Performance: Are Female Collegiate Athletes Behaving More like Males?

    Science.gov (United States)

    Muller, Susan M.; Gorrow, Teena R.; Schneider, Sidney R.

    2009-01-01

    Objective: The authors designed this study to determine if differences exist between male and female collegiate athletes' supplement use and behaviors to modify body appearance. Participants: Collegiate athletes who participated in this study were 241 females and 210 males, aged 17 to 28 years. Method: Participants completed a questionnaire about…

  15. The Impact of Collegiality amongst Australian Accounting Academics on Work-Related Attitudes and Academic Performance

    Science.gov (United States)

    Su, Sophia; Baird, Kevin

    2017-01-01

    This study provides an insight into the collegiality of Australian accounting academics and the association of collegiality with their work-related attitudes and academic performance. Data were collected by a survey questionnaire from a random sample of 267 accounting academics within Australian universities. The results suggest a moderate level…

  16. The Necessity for Collegiality: Power, Authority and Influence in the Middle

    Science.gov (United States)

    Jarvis, Adrian

    2012-01-01

    Collegiality is often advocated as the best way in which to run a successful school subject department. This article explores this proposition in the light of power relationships within hierarchical organizations. Rather than viewing collegiality merely as a management model, it looks at the power relationships which condition the working lives of…

  17. Using Collegial Coaching and Reflection as Mechanisms for Changing School Cultures.

    Science.gov (United States)

    Delany, Judith C.; Arredondo, Daisy E.

    A research project explored the potential of collegial coaching and reflective dialogue as mechanisms for school leaders to use to significantly alter the organizational context so that cultural change might occur. The study investigated the possibility that collegial coaching, reflection, and dialogue about teaching practices may provide an…

  18. Achievement or Arrest? The Influence of the Collegiate Religious and Spiritual Climate on Students' Worldview Commitment

    Science.gov (United States)

    Mayhew, Matthew J.; Bryant, Alyssa N.

    2013-01-01

    The purpose of this study was to elucidate the relationship between the collegiate religious, spiritual, and ideological climate and worldview commitment. As part of this process, 1,071 students responded to the Collegiate Religious and Spiritual Climate Survey, an empirically validated and reliable measure designed to assess dimensions of a…

  19. The Impact of Collegiality amongst Australian Accounting Academics on Work-Related Attitudes and Academic Performance

    Science.gov (United States)

    Su, Sophia; Baird, Kevin

    2017-01-01

    This study provides an insight into the collegiality of Australian accounting academics and the association of collegiality with their work-related attitudes and academic performance. Data were collected by a survey questionnaire from a random sample of 267 accounting academics within Australian universities. The results suggest a moderate level…

  20. How Does Collegiality Survive Managerially Led Universities? Evidence from a European Survey

    Science.gov (United States)

    Marini, Giulio; Reale, Emanuela

    2016-01-01

    Today's universities are, accordingly to Clark's entrepreneurial model, sustained by managerialism, whereas collegialism may remain in contrast or work in a different way. More recent literature suggests the clash such as the potential for coexistence between managerialism and collegialism. The study analyses data from a survey of 26 universities…

  1. Organizational Structure, Collegial Trust, and College Faculty Teaching Efficacy: A Case Study

    Science.gov (United States)

    Okpogba, Desmond

    2011-01-01

    The purpose of this mixed-method study was to explore the relationship between faculty self-efficacy, organizational structure, and collegial trust. The concepts of teacher self-efficacy, organizational structure, and collegial trust were used to investigate any possible empirical relationships existing between these variables in a private,…

  2. Exploring the Feasibility of an Academic Course That Provides Nutrition Education to Collegiate Student-Athletes

    Science.gov (United States)

    Karpinski, Christine

    2012-01-01

    The purpose of this article is to explore the delivery of nutrition education to collegiate student-athletes through an academic course. Existing literature has established the need for nutrition education among collegiate athletes. This article considers the collaboration of the university and the athletic department to better serve this…

  3. Evaluation of a Hockey Deceased Organ Donation Awareness Campaign: A Population-Based Cohort Study

    Science.gov (United States)

    Naylor, Kyla L.; McKenzie, Susan; Cherry, Cindy; McArthur, Eric; Li, Alvin H.; McCallum, Megan K.; Kim, S. Joseph; Prakash, Versha; Knoll, Gregory A.; Garg, Amit X.

    2017-01-01

    Background: The Kidney Foundation of Canada developed a pilot campaign to educate persons attending junior hockey league games in London, Ontario, Canada, on deceased organ donation. Objective: To evaluate the impact of a hockey campaign on the number of new organ and tissue donor registrants. Design: Population-based retrospective cohort study. Setting: Residents of London, Ontario. Patients: We included 255 476 individuals eligible to register for organ donation with a London, Ontario postal code. Measurements: We compared the number of new deceased organ donor registrants in London, Ontario, during the campaign period (March 12 to April 16, 2015) with 3 different time periods (December 30, 2014 to February 3, 2015; February 4 to March 11, 2015; April 17 to May 22, 2015). We also compared registration rates in London with 2 Ontario cities (Kitchener-Waterloo and Hamilton) matching in a 1:1 ratio on age, sex, and income quintile. Methods: To compare registrations across time periods, we used binomial regression with an identity link function and generalized estimating equations with an independence correlation structure. We used modified Poisson regression to compare registration rates between cities. Results: During the campaign period, there were slightly more registrations (1218 registered of 252 832 unregistered individuals [0.48%]) compared with an earlier time period (risk difference: 0.09%; 95% confidence interval [CI]: 0.05%-0.12%). However, there was no significant difference compared with 2 time periods immediately before and after the campaign. London had slightly more registrations during the campaign period compared with the matched city of Hamilton (1180 registered of 236 582 unregistered individuals [0.50%] vs 490 registered of 236 582 unregistered individuals [0.21%]; risk ratio: 2.41; 95% CI: 2.17-2.68). The registration rate in London did not significantly differ from Kitchener-Waterloo. Limitations: Unable to conclude whether the minor increase

  4. On-ice sweat rate, voluntary fluid intake, and sodium balance during practice in male junior ice hockey players drinking water or a carbohydrate-electrolyte solution

    National Research Council Canada - National Science Library

    Logan, Heather M; Spriet, Lawrence L; Palmer, Matthew S

    2010-01-01

    This study evaluated the repeatability of hydration and sweat measurements taken during on-ice hockey practices with players drinking only water, and determined whether having only a carbohydrate-electrolyte solution (CES...

  5. The Impact of Competitive Trait Anxiety on Collegiate Powerlifting Performance.

    Science.gov (United States)

    Judge, Lawrence W; Urbina, Leslie J; Hoover, Donald L; Craig, Bruce W; Judge, Lani M; Leitzelar, Brianna M; Pearson, David R; Holtzclaw, Kara A; Bellar, David M

    2016-09-01

    Judge, LW, Urbina, LJ, Hoover, DL, Craig, BW, Judge, LM, Leitzelar, BM, Pearson, DR, Holtzclaw, KA, and Bellar, DM. The impact of competitive trait anxiety on collegiate powerlifting performance. J Strength Cond Res 30(9): 2399-2405, 2016-The purpose of this study was to determine the relationship between competitive trait anxiety measures and powerlifting (PL) performance. Thirty-six collegiate powerlifters on club teams from 3 universities were recruited during a competition (men = 26, women = 10; age = 19.9 ± 1.5 years; height = 172.5 ± 8.6 cm; weight = 81.4 ± 21.0 kg). The athletes were distributed across weight classes for collegiate PL (47.6 kg: 1; 51.7 kg: 1; 54.9 kg: 1; 59.8 kg: 3; 67.1 kg: 2; 74.8 kg: 7; 82.1 kg: 4; 89.8 kg: 9; 99.8 kg: 5; super heavyweight: 3). A survey containing questions about PL performance history and the 15-item Sport Competition Anxiety Test (SCAT) were administered to the participants before competing. The SCAT total was negatively correlated (r = -0.397; p = 0.02) to the athletes' percentage of best total achieved in the competition (actual performance total/best comp total × 100). Of the individual lifts, the SCAT score was negatively correlated to the personal best for bench press (r = -0.368; p = 0.03) and deadlift (r = -0.317, p = 0.05), but did not significantly correlate for squat (r = -0.182, p = 0.27). These results indicate a negative correlation between the SCAT score and athletes' personal best totals in PL. Increased SCAT scores were associated with decreased personal best PL totals. The results suggest that competitive trait anxiety may have negatively impacted performance and that some PL athletes may benefit from interventions aimed at decreasing anxiety before and during performance.

  6. Changes over time in academic dishonesty at the collegiate level.

    Science.gov (United States)

    Spiller, S; Crown, D F

    1995-06-01

    Recent assertions that collegiate cheating has risen dramatically have increased in frequency. We examine the possibility that these assertions are based on comparisons of studies of different behaviors with varied methodologies, and different opportunities to cheat. To assess the increase in cheating we identified a cheating behavior which had been empirically studied consistently from the early 1900s. When the percentages of students who cheated in these studies were compared across time periods, while controlling for methodological differences, no significant linear trend was found.

  7. Time course and dimensions of postural control changes following neuromuscular training in youth field hockey athletes

    NARCIS (Netherlands)

    Zech, Astrid; Klahn, Philipp; Hoeft, Jon; Eulenburg, Christine Zu; Steib, Simon

    2014-01-01

    Purpose Injury prevention effects of neuromuscular training have been partly attributed to postural control adaptations. Uncertainty exists regarding the magnitude of these adaptations and on how they can be adequately monitored. The objective was to determine the time course of neuromuscular traini

  8. Time course and dimensions of postural control changes following neuromuscular training in youth field hockey athletes

    NARCIS (Netherlands)

    Zech, Astrid; Klahn, Philipp; Hoeft, Jon; Eulenburg, Christine Zu; Steib, Simon

    2014-01-01

    Purpose Injury prevention effects of neuromuscular training have been partly attributed to postural control adaptations. Uncertainty exists regarding the magnitude of these adaptations and on how they can be adequately monitored. The objective was to determine the time course of neuromuscular traini

  9. Ice Hockey Lung – A Case of Mass Nitrogen Dioxide Poisoning in The Czech Republic

    Directory of Open Access Journals (Sweden)

    Kristian Brat

    2013-01-01

    Full Text Available Nitrogen dioxide (NO2 is a toxic gas, a product of combustion in malfunctioning ice-resurfacing machines. NO2 poisoning is rare but potentially lethal. The authors report a case of mass NO2 poisoning involving 15 amateur ice hockey players in the Czech Republic. All players were treated in the Department of Respiratory Diseases at Brno University Hospital in November 2010 – three as inpatients because they developed pneumonitis. All patients were followed-up until November 2011. Complete recovery in all but one patient was achieved by December 2010. None of the 15 patients developed asthma-like disease or chronic cough. Corticosteroids appeared to be useful in treatment. Electric-powered ice-resurfacing machines are preferable in indoor ice skating arenas.

  10. Ice hockey lung – a case of mass nitrogen dioxide poisoning in the Czech Republic

    Science.gov (United States)

    Brat, Kristian; Merta, Zdenek; Plutinsky, Marek; Skrickova, Jana; Ing, Miroslav Stanek

    2013-01-01

    Nitrogen dioxide (NO2) is a toxic gas, a product of combustion in malfunctioning ice-resurfacing machines. NO2 poisoning is rare but potentially lethal. The authors report a case of mass NO2 poisoning involving 15 amateur ice hockey players in the Czech Republic. All players were treated in the Department of Respiratory Diseases at Brno University Hospital in November 2010 – three as inpatients because they developed pneumonitis. All patients were followed-up until November 2011. Complete recovery in all but one patient was achieved by December 2010. None of the 15 patients developed asthma-like disease or chronic cough. Corticosteroids appeared to be useful in treatment. Electric-powered ice-resurfacing machines are preferable in indoor ice skating arenas. PMID:24032121

  11. Septic olecranon and prepatellar bursitis in hockey players: a report of three cases.

    Science.gov (United States)

    Tuff, Taylor; Chrobak, Karen

    2016-12-01

    Septic bursitis (SB) is an important differential diagnosis in athletes presenting with an acute subcutaneous swelling of the elbow or knee. Prompt recognition is essential to minimize recovery time and prevent the spread of infection. Due to the significant overlap in clinical features, it is often difficult to differentiate SB from non-septic bursitis (NSB) without bursal aspirate analysis. SB is commonly not considered unless the bursitis is accompanied by a local skin lesion or fever. This study describes two cases of septic olecranon bursitis and one case of septic prepatellar bursitis in adult hockey players presenting to a sports medicine clinic. None of the cases presented with an observable skin lesion and only one case developed a fever. It is therefore essential that clinicians maintain a high index of suspicion and monitor for signs of progression when presented with an acute bursitis even in the absence of these features.

  12. Study of structure of technical and tactical activity of high class hockey players of different line by the method of main component

    Directory of Open Access Journals (Sweden)

    Oleksiy Mikhnov

    2014-10-01

    Full Text Available Purpose: to study the factor structure of technical and tactical actions of hockey players of high qualification of different playing line of business. Material and methods: for the leadthrough of analysis of competition activity information of technical and tactical actions of hockey players was used NHL. Competition activity was in general complication analysed more than 800 hockey players of different line of business. Methods were used: pedagogical supervisions and analysis of competition activity, analysis of data of the special scientific-methodical literature, an analysis of data is the Internet, methods of mathematical statistics. Results: information is presented in relation to the specific of competition activity of hockey players of high class of different line of business in a match. The factor structure of technical and tactical activity of hockey players, executing in the command of function of extreme forward, central forward, defender and goalkeeper is set. for the players of line of attack most meaningfulness was had factors, related to the attack of gate of competitor, for defenders are power single combats, defense of gate and selection of puck, for a goalkeeper the most meaningful factor is characterized by efficiency of reflection of throws on a gate. Conclusions: the exposed features are in realization of technical and tactical actions the hockey players of high class of different playing line of business, it is necessary certainly to take into account in the process of estimation and control.

  13. Factors influencing visor use among players in the National Hockey League (NHL

    Directory of Open Access Journals (Sweden)

    Micieli R

    2014-04-01

    Full Text Available Robert Micieli,1 Jonathan A Micieli21Faculty of Science and Engineering, York University, 2Department of Ophthalmology and Vision Science, University of Toronto, Toronto, ON, CanadaAbstract: Eye, orbital, and facial injuries are significant risks to National Hockey League (NHL players, and can be mitigated by the use of a partial visor – currently optional for all non-rookie players. The goal of the current study was to determine the overall use of visors among non-rookie NHL players in the 2013–2014 season and assess factors influencing their uptake. This was an observational, cross-sectional study using active NHL rosters and demographic information obtained from the official NHL website. Visor use was determined based on in-game video or images at two different time points in the 2013–2014 season. The use of visors during the 2013–2014 season was 75.2% among non-rookie players. When rookies were included, the overall use of visors was 77.8%. Compared to Canadian-born players, European players were significantly more likely to choose to wear a visor (odds ratio [OR] 3.48, 95% confidence interval [CI] 1.96–6.17. Players in the younger age-groups, particularly those younger than 24 years (OR 5.67, 95% CI 2.52–5.76 and those between 24 and 28 years (OR 2.18, 95% CI 1.23–3.87, were more likely to wear a visor compared to older players. Overall, visor use continues to grow in the NHL independently of new legislation, and is more likely in younger players and those of European origin.Keywords: ice hockey, facial protection, professional sports, eye injuries, safety

  14. Variables determinantes del drag-flick en jugadoras de hockey hierba

    Directory of Open Access Journals (Sweden)

    Cristina López de Subijana Hernández

    2012-12-01

    Full Text Available El penalti córner es una de las situaciones de juego más importantes en el hockey hierba. Las mujeres utilizan menos el drag-flick que los hombres. Los objetivos de este estudio fueron describir los parámetros cinemáticos del drag-flick en jugadoras especialistas y hallar las variables determinantes en el rendimiento en este gesto técnico en jugadoras de hockey. Se analizaron quince lanzamientos de cinco lanzadoras con 6 cámaras del sistema de captura automática VICON registrando a 250 Hz. Para la comparación de medias se utilizó un análisis no paramétrico Kruskall Wallis de un factor (sujeto. Aquellos parámetros en los que se hallaron diferencias significativas, se compararon por pares por medio de una U de Mann Whitney. Las jugadoras 1 (22,5 ± 0,9 m/s y 3 (22,6 ± 0,7 m/s registraron velocidades de salida de la bola superiores (p < 0,001 a todas las demás jugadoras (19,1 ± 0,7 m/s jugadora 2; 20,5 ± 0,4 m/s jugadora 4 y 19,9 ± 0,4 m/s jugadora 5. La jugadora 1 basa su aceleración final en un doble apoyo largo, con una secuencia de velocidades y una distancia recorrida lo más amplia posible. Sin embargo, jugadora 3 basa su velocidad en la carrera previa, y en una secuencia de movimientos explosiva. Las características individuales de cada jugadora juegan un papel importante en la elección de una estrategia técnica u otra de lanzamiento.

  15. Flame Retardant Exposure among Collegiate U.S. Gymnasts

    Science.gov (United States)

    Carignan, Courtney C.; Heiger-Bernays, Wendy; McClean, Michael D.; Roberts, Simon C.; Stapleton, Heather M.; Sjödin, Andreas; Webster, Thomas F.

    2013-01-01

    Gymnastics training facilities contain large volumes of polyurethane foam, a material that often contains additive flame retardants such as PentaBDE. While investigations of human exposure to flame retardants have focused on the general population, potentially higher than background exposures may occur in gymnasts and certain occupational groups. Our objectives were to compare PentaBDE body burden among gymnasts to the general U.S. population and characterize flame retardants levels in gym equipment, air and dust. We recruited 11 collegiate female gymnasts (ages 18–22) from one gym in the Eastern U.S. The geometric mean (GM) concentration of BDE-153 in gymnast sera (32.5 ng/g lipid) was 4–6.5 times higher than general U.S. population groups. Median concentrations of PentaBDE, TBB and TBPH in paired handwipe samples were 2–3 times higher after practice compared to before, indicating the gymnasts contacted these flame retardants during practice. GM concentrations of PentaBDE, TBB and TBPH were 1-3 orders of magnitude higher in gym air and dust than in residences. Our findings suggest that these collegiate gymnasts experienced higher exposures to PentaBDE flame retardants compared to the general U.S. population and that gymnasts may also have increased exposure to other additive flame retardants used in polyurethane foam such as TBB and TBPH. PMID:24195753

  16. Flame retardant exposure among collegiate United States gymnasts.

    Science.gov (United States)

    Carignan, Courtney C; Heiger-Bernays, Wendy; McClean, Michael D; Roberts, Simon C; Stapleton, Heather M; Sjödin, Andreas; Webster, Thomas F

    2013-12-03

    Gymnastics training facilities contain large volumes of polyurethane foam, a material that often contains additive flame retardants such as PentaBDE. While investigations of human exposure to flame retardants have focused on the general population, potentially higher than background exposures may occur in gymnasts and certain occupational groups. Our objectives were to compare PentaBDE body burden among gymnasts to the general United States population and characterize flame retardants levels in gym equipment, air, and dust. We recruited 11 collegiate female gymnasts (ages 18-22) from one gym in the eastern United States. The geometric mean (GM) concentration of BDE-153 in gymnast sera (32.5 ng/g lipid) was 4-6.5 times higher than in the general United States population groups. Median concentrations of PentaBDE, TBB, and TBPH in paired handwipe samples were 2-3 times higher after practice compared to before, indicating the gymnasts contacted these flame retardants during practice. GM concentrations of PentaBDE, TBB, and TBPH were 1-3 orders of magnitude higher in gym air and dust than in residences. Our findings suggest that these collegiate gymnasts experienced higher exposures to PentaBDE flame retardants compared to the general United States population and that gymnasts may also have increased exposure to other additive flame retardants used in polyurethane foam such as TBB and TBPH.

  17. Y-balance normative data for female collegiate volleyball players.

    Science.gov (United States)

    Hudson, Christy; Garrison, J Craig; Pollard, Kalyssa

    2016-11-01

    The Lower Quarter Y Balance (YBT-LQ) Test performance varies depending on competitive level, sport, gender, and age; therefore, determining normative scores specific to a population may be helpful in identifying injury-risk thresholds and return-to-play criteria following an injury. The purpose of this study was to determine normative YBT-LQ scores by assessing a subset of female, Division I volleyball players. A descriptive analysis cohort study. Ninety healthy (19.6 ± 1.2 y/o), collegiate female volleyball players. YBT-LQ was measured in 3 distinct directions of anterior (ANT), posteromedial (PM) and posterolateral (PL) on both the dominant and non-dominant limbs. In addition, a one way ANOVA was performed to determine mean group differences of YBT-LQ dominant and non-dominant limb composite score across position. Baseline values for this population were 94.1 ± 6.6% on the dominant limb and 93.9 ± 6.2% on the non-dominant limb. There were no significant differences for YBT-LQ composite scores on dominant (P = 0.867) and non-dominant (P = 0.989) limbs between position. This study identified normative YBT-LQ composite scores for healthy, female, collegiate volleyball players. Participants performed similarly despite their position. Copyright © 2016 Elsevier Ltd. All rights reserved.

  18. Postactivation potentiation enhances swim performance in collegiate swimmers.

    Science.gov (United States)

    Hancock, Andrew P; Sparks, Kenneth E; Kullman, Emily L

    2015-04-01

    This study examined postactivation potentiation (PAP) and its effect on performance during sprint swimming. After maximal muscular contraction, the muscles are in both a potentiated and fatigued state. However, fatigue dissipates faster than potentiation, creating a window of opportunity for possible performance enhancement. We observed 30 collegiate swimmers (15 men and 15 women) performing 2 swim trials in a randomized order. The control trial involved a standard swim warm-up, followed by a 6-minute rest and by a maximal 100-m freestyle swim effort. The PAP trial involved the same protocol; however, a PAP loading protocol involved the subjects completing 4 maximal 10-m swims at a 1-minute interval while attached to a resistive power rack and was completed before the 6-minute rest. Fifty-meter splits and blood lactates were also analyzed. There was a significant improvement in 100-m freestyle swim time (0.54 seconds) for the PAP trial vs. the control trial (p = 0.029). Both men and women improved during the PAP trial compared with the control trial, and there was no significant gender interaction. We conclude that PAP substantially enhances 100-m freestyle performance in collegiate swimmers and presents a valid technique for competitive performance enhancement.

  19. Elite collegiate tennis athletes have lower 2D: 4D ratios than those of nonathlete controls.

    Science.gov (United States)

    Hsu, Cheng-Chen; Su, Borcherng; Kan, Nai-Wen; Lai, Su-Ling; Fong, Tsorng-Harn; Chi, Chung-Pu; Chang, Ching-Chyuan; Hsu, Mei-Chich

    2015-03-01

    The ratio of the length of the second finger (index finger) to the fourth finger (ring finger) (2D:4D ratio) is a putative marker for prenatal hormones. Physiological research has suggested a low 2D:4D ratio correlates with high athletic ability. Athletes of specific sports (e.g., American football) have lower 2D:4D ratios than those of nonathletes, whereas athletes of some sports (e.g., rowing, gymnastics, and soccer) do not. This study investigated the 2D:4D ratios among collegiate tennis athletes, elite collegiate tennis athletes, and nonelite collegiate tennis athletes and compared them with nonathletes of both sexes. The participants included 43 elite collegiate tennis athletes (Level I intercollegiate athletes in Taiwan; 27 males and 16 females), 107 nonelite collegiate tennis athletes (Level II athletes; 55 males and 52 females), and 166 nonathlete college students (80 males and 86 females). The principle findings suggest that (a) regardless of sex, collegiate tennis athletes have lower 2D:4D values than those of nonathletes; (b) elite collegiate tennis athletes have lower 2D:4D values than those of nonathletes; (c) among females but not males, athletes and nonelite athletes have lower 2D:4D values than those of nonathletes; and (d) males have lower 2D:4D values than those of females.

  20. Tsunami Hockey

    Science.gov (United States)

    Weinstein, S.; Becker, N. C.; Wang, D.; Fryer, G. J.

    2013-12-01

    An important issue that vexes tsunami warning centers (TWCs) is when to cancel a tsunami warning once it is in effect. Emergency managers often face a variety of pressures to allow the public to resume their normal activities, but allowing coastal populations to return too quickly can put them at risk. A TWC must, therefore, exercise caution when cancelling a warning. Kim and Whitmore (2013) show that in many cases a TWC can use the decay of tsunami oscillations in a harbor to forecast when its amplitudes will fall to safe levels. This technique should prove reasonably robust for local tsunamis (those that are potentially dangerous within only 100 km of their source region) and for regional tsunamis (whose danger is limited to within 1000km of the source region) as well. For ocean-crossing destructive tsunamis such as the 11 March 2011 Tohoku tsunami, however, this technique may be inadequate. When a tsunami propagates across the ocean basin, it will encounter topographic obstacles such as seamount chains or coastlines, resulting in coherent reflections that can propagate great distances. When these reflections reach previously-impacted coastlines, they can recharge decaying tsunami oscillations and make them hazardous again. Warning center scientists should forecast sea-level records for 24 hours beyond the initial tsunami arrival in order to observe any potential reflections that may pose a hazard. Animations are a convenient way to visualize reflections and gain a broad geographic overview of their impacts. The Pacific Tsunami Warning Center has developed tools based on tsunami simulations using the RIFT tsunami forecast model. RIFT is a linear, parallelized numerical tsunami propagation model that runs very efficiently on a multi-CPU system (Wang et al, 2012). It can simulate 30-hours of tsunami wave propagation in the Pacific Ocean at 4 arc minute resolution in approximately 6 minutes of real time on a 12-CPU system. Constructing a 30-hour animation using 1 minute simulated time steps takes approximately 50 minutes on the same system. These animations are generated quickly enough to provide decision support for emergency managers whose coastlines may be impacted by the tsunami several hours later. Tsunami reflections can also aid in determining the source region for those tsunamis generated by non-seismic mechanisms without a clear source such as meteotsunamis, tsunamis generated by meteorological phenomena. A derecho that crossed the New Jersey coast and entered the Atlantic Ocean at approximately 1500 UTC June 13, 2013 generated a meteotsunami that struck the northeast coast of the US causing several injuries. A DART sensor off Montauk, NY, recorded tsunami waves approximately 200 minutes apart. We show how the arrival times of the tsunamis recorded by this DART can help to constrain the source region of the meteotsunami. We also examine other reflections produced by the Haida Gwaii 2012, Tohoku 2011, and other tsunamis.

  1. Epidemiology of Sports-Related Concussions in National Collegiate Athletic Association Athletes From 2009-2010 to 2013-2014: Symptom Prevalence, Symptom Resolution Time, and Return-to-Play Time.

    Science.gov (United States)

    Wasserman, Erin B; Kerr, Zachary Y; Zuckerman, Scott L; Covassin, Tracey

    2016-01-01

    Limited data exist among collegiate student-athletes on the epidemiology of sports-related concussion (SRC) outcomes, such as symptoms, symptom resolution time, and return-to-play time. This study used the National Collegiate Athletic Association (NCAA) Injury Surveillance Program (ISP) to describe the epidemiology of SRC outcomes in 25 collegiate sports. Descriptive epidemiology study. SRC data from the NCAA ISP during the 2009-2010 to 2013-2014 academic years were analyzed regarding symptoms, time to resolution of symptoms, and time to return to play. Findings were also stratified by sex in sex-comparable sports (ie, ice hockey, soccer, basketball, lacrosse, baseball/softball) and whether SRCs were reported as recurrent. Of the 1670 concussions reported during the 2009-2010 to 2013-2014 academic years, an average (±SD) of 5.29 ± 2.94 concussion symptoms were reported, with the most common being headache (92.2%) and dizziness (68.9%). Most concussions had symptoms resolve within 1 week (60.1%); however, 6.2% had a symptom resolution time of over 4 weeks. Additionally, 8.9% of concussions required over 4 weeks before return to play. The proportion of SRCs that required at least 1 week before return to play increased from 42.7% in 2009-2010 to 70.2% in 2013-2014 (linear trend, P concussions in male athletes included amnesia and disorientation; a larger proportion of concussions in female athletes included headache, excess drowsiness, and nausea/vomiting. A total of 151 SRCs (9.0%) were reported as recurrent. The average number of symptoms reported with recurrent SRCs (5.99 ± 3.43) was greater than that of nonrecurrent SRCs (5.22 ± 2.88; P = .01). A greater proportion of recurrent SRCs also resulted in a long symptom resolution time (14.6% vs 5.4%, respectively; P concussion management practices in which team medical staff members withhold players from participation longer to ensure symptom resolution. Concussion symptoms may differ by sex and recurrence. Future

  2. Weaving meanings from the deliberative process of collegiate management in nursing.

    Science.gov (United States)

    Higashi, Giovana Dorneles Callegaro; Erdmann, Alacoque Lorenzini

    2014-01-01

    to understand the meanings of the collegiate deliberations attributed by its members on an undergraduate nursing course. Grounded Theory, interviews being held with 30 participants, making up 4 sample groups, between January and June 2012, in a public higher education institution. 5 categories emerged, indicating the phenomenon and weaving the paradigmatic model: Understanding the experience of the complex relationships and interactions in the deliberations of collegiate management in nursing: intertwining divergences, convergences, dialogs, collectivities and diversities. This deliberative process presents various meanings involving discussion, and divergent, convergent and complementary positions, through dialog, commitment and negotiation. the deliberations in the collegiate of nursing, intertwining dialogs, collectivities and diversities, mold the complex relational fabrics.

  3. Proprioception of foot and ankle complex in young regular practitioners of ice hockey, ballet dancing and running.

    Science.gov (United States)

    Li, Jing Xian; Xu, Dong Qing; Hoshizaki, Blaine

    2009-01-01

    This study examined the proprioception of the foot and ankle complex in regular ice hockey practitioners, runners, and ballet dancers. A total of 45 young people with different exercise habits formed four groups: the ice hockey, ballet dancing, running, and sedentary groups. Kinesthesia of the foot and ankle complex was measured in plantarflexion (PF), dorsiflexion (DF), inversion (IV), and eversion (EV) at 0.4 degrees /s using a custom-made device. The results showed the following: (1) significantly better perceived passive motion sense in PF/DF was found as compared with the measurements in IV/EV within each group (P ballet groups perceived significantly better passive motion sense in IV/EV than the running (P ballet dancing on proprioception may be associated with their movement characteristics.

  4. From Fact to Fiction – An Introduction to the Mythology of Ice Hockey in Canadian Life and Literature

    Directory of Open Access Journals (Sweden)

    Jason Blake

    2004-12-01

    Full Text Available The title of Alice Munro’s Who do you think you are? could just as easily be asked of Canada, without eliciting an easy answer. In ethnic, linguistic, even geographical terms, Canada is hardly homogeneous. Because of this, we can only dream of a unified identity; we are, as Leonard Cohen writes in Beautiful Losers, condemned to “nightmares of identity.” If Canada is too complex for a uniform national identity, one derived from a convenient mythology and distilled into simple symbols, it often seems we have yet to realize it. We long for a mythology, even a modern, and blatantly constructed one. In contemporary Canadian society, ice hockey has filled that symbolic role, serving as a mythology that binds a fragmented people. This paper examines the role of ice hockey as a mythologized symbol of Canadian unity in literature, and questions the appropriateness of that usage.

  5. A prospective study of concussions among National Hockey League players during regular season games: the NHL-NHLPA Concussion Program.

    Science.gov (United States)

    Benson, Brian W; Meeuwisse, Willem H; Rizos, John; Kang, Jian; Burke, Charles J

    2011-05-17

    In 1997, the National Hockey League (NHL) and NHL Players' Association (NHLPA) launched a concussion program to improve the understanding of this injury. We explored initial postconcussion signs, symptoms, physical examination findings and time loss (i.e., time between the injury and medical clearance by the physician to return to competitive play), experienced by male professional ice-hockey players, and assessed the utility of initial postconcussion clinical manifestations in predicting time loss among hockey players. We conducted a prospective case series of concussions over seven NHL regular seasons (1997-2004) using an inclusive cohort of players. The primary outcome was concussion and the secondary outcome was time loss. NHL team physicians documented post-concussion clinical manifestations and recorded the date when a player was medically cleared to return to play. Team physicians reported 559 concussions during regular season games. The estimated incidence was 1.8 concussions per 1000 player-hours. The most common postconcussion symptom was headache (71%). On average, time loss (in days) increased 2.25 times (95% confidence interval [CI] 1.41-3.62) for every subsequent (i.e., recurrent) concussion sustained during the study period. Controlling for age and position, significant predictors of time loss were postconcussion headache (p < 0.001), low energy or fatigue (p = 0.01), amnesia (p = 0.02) and abnormal neurologic examination (p = 0.01). Using a previously suggested time loss cut-point of 10 days, headache (odds ratio [OR] 2.17, 95% CI 1.33-3.54) and low energy or fatigue (OR 1.72, 95% CI 1.04-2.85) were significant predictors of time loss of more than 10 days. Postconcussion headache, low energy or fatigue, amnesia and abnormal neurologic examination were significant predictors of time loss among professional hockey players.

  6. A prospective study of concussions among National Hockey League players during regular season games: the NHL-NHLPA Concussion Program

    Science.gov (United States)

    Benson, Brian W.; Meeuwisse, Willem H.; Rizos, John; Kang, Jian; Burke, Charles J.

    2011-01-01

    Background In 1997, the National Hockey League (NHL) and NHL Players’ Association (NHLPA) launched a concussion program to improve the understanding of this injury. We explored initial postconcussion signs, symptoms, physical examination findings and time loss (i.e., time between the injury and medical clearance by the physician to return to competitive play), experienced by male professional ice-hockey players, and assessed the utility of initial postconcussion clinical manifestations in predicting time loss among hockey players. Methods We conducted a prospective case series of concussions over seven NHL regular seasons (1997–2004) using an inclusive cohort of players. The primary outcome was concussion and the secondary outcome was time loss. NHL team physicians documented post-concussion clinical manifestations and recorded the date when a player was medically cleared to return to play. Results Team physicians reported 559 concussions during regular season games. The estimated incidence was 1.8 concussions per 1000 player-hours. The most common postconcussion symptom was headache (71%). On average, time loss (in days) increased 2.25 times (95% confidence interval [CI] 1.41–3.62) for every subsequent (i.e., recurrent) concussion sustained during the study period. Controlling for age and position, significant predictors of time loss were postconcussion headache (p < 0.001), low energy or fatigue (p = 0.01), amnesia (p = 0.02) and abnormal neurologic examination (p = 0.01). Using a previously suggested time loss cut-point of 10 days, headache (odds ratio [OR] 2.17, 95% CI 1.33–3.54) and low energy or fatigue (OR 1.72, 95% CI 1.04–2.85) were significant predictors of time loss of more than 10 days. Interpretation Postconcussion headache, low energy or fatigue, amnesia and abnormal neurologic examination were significant predictors of time loss among professional hockey players. PMID:21502355

  7. Youth sports & public health: framing risks of mild traumatic brain injury in american football and ice hockey.

    Science.gov (United States)

    Bachynski, Kathleen E; Goldberg, Daniel S

    2014-01-01

    The framing of the risks of experiencing mild traumatic brain injury in American football and ice hockey has an enormous impact in defining the scope of the problem and the remedies that are prioritized. According to the prevailing risk frame, an acceptable level of safety can be maintained in these contact sports through the application of technology, rule changes, and laws. An alternative frame acknowledging that these sports carry significant risks would produce very different ethical, political, and social debates.

  8. Effectiveness of competitive activity of high class hockey players accounting a level of their self-esteem

    OpenAIRE

    Mikhnov A.P.

    2015-01-01

    Purpose : study the effect of increasing the level of self-esteem on the efficiency of competitive activity of high class players. Material : the study involved sixteen athletes (Atlanta, Moscow region. - Continental Hockey League). Results : it was found that the application of special training self-esteem increases the level of implementation of technical and tactical action games. Number of goals increased by 8.92%, assists - 21.5%, the total number of shots on goal - to 20.02%. Conclusion...

  9. A systematic video analysis of National Hockey League (NHL) concussions, part I: who, when, where and what?

    Science.gov (United States)

    Hutchison, Michael G; Comper, Paul; Meeuwisse, Willem H; Echemendia, Ruben J

    2015-04-01

    Although there is a growing understanding of the consequences of concussions in hockey, very little is known about the precipitating factors associated with this type of injury. To describe player characteristics and situational factors associated with concussions in the National Hockey League (NHL). Case series of medically diagnosed concussions for regular season games over a 3.5-year period during the 2006-2010 seasons using an inclusive cohort of professional hockey players. Digital video records were coded and analysed using the Heads Up Checklist. Of 197 medically diagnosed concussions, 88% involved contact with an opponent. Forwards accounted for more concussions than expected compared with on-ice proportional representation (95% CI 60 to 73; p=0.04). Significantly more concussions occurred in the first period (47%) compared with the second and third periods (p=0.047), with the majority of concussions occurring in the defensive zone (45%). Approximately 47% of the concussions occurred in open ice, 53% occurred in the perimeter. Finally, 37% of the concussions involved injured players' heads contacting the boards or glass. This study describes several specific factors associated with concussions in the NHL, including period of the game, player position, body size, and specific locations on the ice and particular situations based on a player's position. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.

  10. Novice performance of ultrasound-guided needle advancement: standard 38-mm transducer vs 25-mm hockey stick transducer.

    Science.gov (United States)

    Davies, T; Townsley, P; Jlala, H; Dowling, M; Bedforth, N; Hardman, J G; McCahon, R A

    2012-08-01

    The optimal method to develop expertise in ultrasound-guided regional anaesthesia is unknown. Studies of laryngoscopic expertise in novices demonstrate that the choice of laryngoscope affects performance. In this study, we aimed to compare the effect of two different linear array transducers (38-mm standard vs 25-mm hockey stick) on novice performance of ultrasound-guided needle advancement. Following randomisation, participants watched a video model of expert performance of ultrasound-guided needle advancement. Recruits performed the modelled task on a turkey breast model. The median (IQR [range]) composite error score was statistically significantly larger for participants in the hockey stick transducer group compared with the standard transducer group; 10.0 (7.3-14.3 [2.5-29.0]) vs 7.5 (4.5-10.0 [2.0-28.0]) respectively, (p = 0.01). This study has demonstrated that performance of ultrasound-guided needle advancement by novice operators after simple video instruction is better (as assessed using a composite error score) with a standard 38-mm transducer than with a 25-mm hockey stick transducer. Anaesthesia © 2012 The Association of Anaesthetists of Great Britain and Ireland.

  11. Reliability, usefulness, and validity of the 30-15 Intermittent Ice Test in young elite ice hockey players.

    Science.gov (United States)

    Buchheit, Martin; Lefebvre, Benjamin; Laursen, Paul B; Ahmaidi, Said

    2011-05-01

    The purpose of this study was to examine the reliability, usefulness, and validity of the 30-15 Intermittent Ice Test (30-15(IIT)) in 17 young elite ice hockey players. For the reliability and usefulness study, players performed the 30-15(IIT) 7 days apart. For the validity study, data derived from the first 30-15(IIT) were compared with those obtained from the 30-15 Intermittent Fitness Test (30-15(IFT), the running version of this test used as a reference marker for its ability to assess cardiovascular fitness in the field, that is, VO₂peak). Maximal speed, heart rate at exhaustion (HR(peak)) and postexercise blood-lactate levels ([La](b)) were collected for all tests, whereas submaximal HR was taken at stages 4 and 8 (HR(stage4) and HR(stage8)) during the 30-15(IIT). All intra-class correlation coefficients were >0.94. Coefficients of variation were 1.6% (90% CI, 1.3-2.3), 1.7% (1.3-2.8), 1.4% (1.0-2.2), and 0.7% (0.5-1.1) for maximal skating speed, HR(stage4), HR(stage8), and HR(peak), respectively. Correlations between maximal velocities and HR(peak) obtained for the 30-15(IIT) vs. 30-15(IFT) were very large (r = 0.72) and large (r = 0.61), respectively. Maximal skating speed was also largely correlated to estimated VO₂peak (r = 0.71). There was however no correlation for [La](b) values between both tests (r = 0.42). These results highlight the specificity of the on-ice 30-15(IIT) and show it to be a reliable and valid test for assessing cardiorespiratory fitness in young elite players. Coaches could interpret a change in performance of at least 2 stages, or a change in submaximal HR of more than 8% (≈8 b·min⁻¹) during the eighth stage to be a meaningful change in skating fitness.

  12. Review of Sports Performance Research with Youth, Collegiate, and Elite Athletes

    Science.gov (United States)

    Luiselli, James K.; Woods, Kathryn E.; Reed, Derek D.

    2011-01-01

    This brief review summarizes translational and intervention research in the area of sports performance. We describe studies with youth, collegiate, and elite athletes; identify recent trends; and propose recommendations for future research.

  13. The Relationships between Collegiate DECA Commitment, Mentoring and College Students' Perceived Career Commitment

    Science.gov (United States)

    Duke, Linda

    2013-01-01

    This study investigated relationships between student's Collegiate DECA commitment, psychological capital, mentoring, and perceived career commitment. Proposed relationships were supported with several psychological theories and frameworks including Organizational Commitment, Psychological Capital, and Social Identity Theory. Data was…

  14. Applying the Multi-Institutional Study of Leadership Findings to Collegiate Recreation and Athletics.

    Science.gov (United States)

    Nesbitt, Gordon M; Grant, Anthony

    2015-01-01

    This chapter describes ways to implement key findings of the Multi-Institutional Study of Leadership in collegiate recreation and athletic programs. Lessons from NCAA and the NIRSA Leadership Commission are also presented.

  15. Superolateral Hoffa's Fat Pad Edema in Collegiate Volleyball Players.

    Science.gov (United States)

    Mehta, Kaushal; Wissman, Robert; England, Eric; Dʼheurle, Albert; Newton, Keith; Kenter, Keith

    2015-01-01

    Superolateral Hoffa's fat pad (SHFP) edema is a previously described magnetic resonance (MR) finding located between the patellar tendon and the lateral femoral condyle. The purpose of our study was to determine the prevalence and clinical significance of SHFP edema in female collegiate volleyball players. Sixteen female collegiate volleyball players were consented for bilateral knee evaluations which consisted of history, physical examination and MR imaging. Each MR study was reviewed for the presence of SHFP edema, and 6 patellar maltracking measurements were done. These were tibial tuberosity-trochlear groove distance, patellar translation, lateral patellofemoral angle, trochlear depth, trochlear sulcus angle, and lateral trochlear inclination angle. A total of 16 athletes, 32 knees (16 girls; age range, 18-22 years; mean, 19.9) were enrolled in the study. Sixteen knees (50%) in 8 athletes had SHFP edema, with 100% bilaterality; 16 knees in 8 athletes had no evidence of SHFP edema (50%). Functional outcomes and physical examination findings were within normal limits for all athletes with no difference noted between SHFP edema-positive and -negative individuals. There was a statistically significant difference in the tibial tuberosity-trochlear groove distance, patellar translation, and patellofemoral angle (P value of volleyball athletes have a very high prevalence of SHFP edema, which is always bilateral. Although the exact etiology of SHFP edema remains inconclusive, it could potentially be a sensitive indicator of subtle patellar maltracking which cannot be distinguished by history and physical examination findings. Given the very high prevalence of SHFP edema and this being an asymptomatic finding, there is likely little clinical significance of this in majority of high-performance athletes.

  16. Physical fitness and performance of polish ice-hockey players competing at different sports levels

    Directory of Open Access Journals (Sweden)

    Roczniok Robert

    2016-06-01

    Full Text Available The study aimed to determine the values of selected aerobic and anaerobic capacity variables, physical profiles, and to analyze the results of on-ice tests performed by ice-hockey players relegated to a lower league. Performance of 24 ice-hockey players competing in the top league in the 2012/2013 season was analysed to this end. In the 2013/2014 season, 14 of them still played in the top league (the control group, while 10 played in the first league (the experimental group. The study was conducted one week after the end of the playoffs in the seasons under consideration. The results revealed that only in the experimental group the analysed variables changed significantly between the seasons. In the Wingate test, significant changes were only noted in mean relative power (a decrease from 9.91 to 9.14 W/kg; p=0.045 and relative total work (a decrease from 299.17 to 277.22 J/kg; p=0.048. The ramp test indicated significantly lower power output in its final stages (364 compared with 384 W; p=0.034, as well as a significant decrease in relative VO2max (from 52.70 to 48.30 ml/min/kg. Blood lactate concentrations were recorded at the 3rd, 6th, 9th and 12th min of recovery after the ramp test. The rate of post-exercise recovery, ∆LA, recorded after the ramp test turned out to be significantly lower. The times recorded in the on-ice “6x30 m stop” test increased from 32.18 to 33.10 s (p=0.047. The study showed that playing in a lower league where games were less intensive, training sessions shorter and less frequent, had an adverse effect on the performance level of the investigated players. Lower VO2max recorded in the study participants slowed down their rates of post-exercise recovery and led to a significantly worse performance in the 6x30 m stop test, as well as lower relative power and relative total work in the Wingate test.

  17. Present Situation and Countermeasures Study on our Country Hockey Sports Development%我国冰球运动发展现状与对策研究

    Institute of Scientific and Technical Information of China (English)

    王安洪; 孙玉巍; 李阳; 王丽颖; 王福全; 姜淼淼; 刘春华

    2011-01-01

    Through analysis on the 11th world hockey movement development direction of winter,standing in the analysis of the jiff hockey development height,the jiff hockey development situation of our country,the author discovers that exist in the reserve forces hockey sports game,less poor less chance,insufficient training effect by increasing government departments,the value,the reform of training mechanism,reasonable arrangement of the training,promote the further development of the hockey movement.%采用文献资料对第21届冬奥会世界冰球运动发展方向进行分析,站在世界冰球发展的高度,对我国冰球发展状况进行分析,发现我国冰球运动存在着后备力量少、比赛机会少、训练效果差等不足,通过加大政府等部门的重视,改革训练机制,合理安排训练,推动我国冰球运动的进一步发展。

  18. Does fair play reduce concussions? A prospective, comparative analysis of competitive youth hockey tournaments.

    Science.gov (United States)

    Smith, Aynsley M; Gaz, Daniel V; Larson, Dirk; Jorgensen, Janelle K; Eickhoff, Chad; Krause, David A; Fenske, Brooke M; Aney, Katie; Hansen, Ashley A; Nanos, Stephanie M; Stuart, Michael J

    2016-01-01

    To determine if Boys Bantam and Peewee and Girls U14 sustain fewer concussions, head hits, 'other injuries' and penalties in hockey tournaments governed by intensified fair play (IFP) than non-intensified fair play (NIFP). A prospective comparison of IFP, a behaviour modification programme that promotes sportsmanship, versus control (non-intensified, NIFP) effects on numbers of diagnosed concussions, head hits without diagnosed concussion (HHWDC), 'other injuries', number of penalties and fair play points (FPPs). 1514 players, ages 11-14 years, in 6 IFP (N=950) and 5 NIFP (N=564) tournaments were studied. Two diagnosed concussions, four HHWDC, and six 'other injuries' occurred in IFP tournaments compared to one concussion, eight HHWDC and five 'other injuries' in NIFP. There were significantly fewer HHWDC in IFP than NIFP (p=0.018). However, diagnosed concussions, 'other injuries', penalties and FPPs did not differ significantly between conditions. In IFP, a minority of teams forfeited the majority of FPPs. Most diagnosed concussions, HHWDC, and other injuries occurred to Bantam B players and usually in penalised teams that forfeited their FPPs. In response to significant differences in HHWDC between IFP and NIFP tournaments, the following considerations are encouraged: mandatory implementation of fair play in regular season and tournaments, empowering tournament directors to not accept heavily penalised teams, and introducing 'no body checking' in Bantam.

  19. Defining the effective impact mass of elbow and shoulder strikes in ice hockey.

    Science.gov (United States)

    Rousseau, Philippe; Hoshizaki, Thomas B

    2015-03-01

    Reconstruction of real-life events can be used to investigate the relationship between the mechanical parameters of the impact and concussion risk. Striking mass has typically been approximated as being the mass of the body part coming into contact with the head without accounting for the force applied by the striking athlete. Thus, the purpose of this study was to measure the effective impact mass of three common striking techniques in ice hockey. Fifteen participants were instructed to strike a suspended 50th percentile Hybrid III headform at least three times with their elbow or shoulder. Effective impact mass was calculated by measuring the change in velocity of the player and the headform. Mean effective impact mass for the extended elbow, tucked-in elbow, and shoulder check conditions were 4.8, 3.0, and 12.9 kg, respectively. Peak linear accelerations were lower than the values associated with concussion in American football which could be a reflection of the methodology used in this study as well as inherent differences between both sports.

  20. The Development of Expert Male National Collegiate Athletic Association Division I Certified Athletic Trainers.

    Science.gov (United States)

    Malasarn, Ruemruk; Bloom, Gordon A; Crumpton, Rebecca

    2002-03-01

    OBJECTIVE: To identify the major influences in the development of expert male National Collegiate Athletic Association (NCAA) Division I certified athletic trainers. DESIGN AND SETTING: The participants were individually interviewed, and the data were transcribed and coded. SUBJECTS: Seven male NCAA Division I certified athletic trainers, who averaged 29 years of experience in the profession and 20 years at the Division I level. RESULTS: We found 3 higher-order categories that explained the development of the certified athletic trainers and labeled these meaningful experiences, personal attributes, and mentoring. The growth and development of the athletic trainers were influenced by a variety of meaningful experiences that began during their time as students and continued throughout their careers. These experiences involved dealing with challenging job conditions, educational conditions, and attempts to promote and improve the profession. The personal attributes category encompassed the importance of a caring and service-oriented attitude, building relationships with athletes, and maintaining strong bonds within their own families. Mentoring of these individuals occurred both inside and outside the athletic training profession. CONCLUSION: We provide a unique view of the development of athletic trainers that should be of interest to those in the field, regardless of years of experience.

  1. Early Single-Sport Specialization: A Survey of 3090 High School, Collegiate, and Professional Athletes

    Science.gov (United States)

    Buckley, Patrick S.; Bishop, Meghan; Kane, Patrick; Ciccotti, Michael C.; Selverian, Stephen; Exume, Dominique; Emper, William; Freedman, Kevin B.; Hammoud, Sommer; Cohen, Steven B.; Ciccotti, Michael G.

    2017-01-01

    Background: Youth participation in organized sports in the United States is rising, with many athletes focusing on a single sport at an increasingly younger age. Purpose: To retrospectively compare single-sport specialization in current high school (HS), collegiate, and professional athletes with regard to the rate and age of specialization, the number of months per year of single-sport training, and the athlete’s perception of injury related to specialization. Study Design: Cross-sectional study; Level of evidence, 3. Methods: A survey was distributed to HS, collegiate, and professional athletes prior to their yearly preparticipation physical examination. Athletes were asked whether they had chosen to specialize in only 1 sport, and data were then collected pertaining to this decision. Results: A total of 3090 athletes completed the survey (503 HS, 856 collegiate, and 1731 professional athletes). A significantly greater percentage of current collegiate athletes specialized to play a single sport during their childhood/adolescence (45.2% of HS athletes, 67.7% of collegiate athletes, and 46.0% of professional athletes; P sport specialization differed between groups and occurred at a mean age of 12.7 ± 2.4 (HS), 14.8 ± 2.5 (collegiate), and 14.1 ± 2.8 years (professional) (P sport-related injury than current professional athletes (25.4%) (P sport during childhood/adolescence. Conclusion: This study provides a foundation for understanding current trends in single-sport specialization in all athletic levels. Current HS athletes specialized, on average, 2 years earlier than current collegiate and professional athletes surveyed. These data challenge the notion that success at an elite level requires athletes to specialize in 1 sport at a very young age. PMID:28812031

  2. Early Single-Sport Specialization: A Survey of 3090 High School, Collegiate, and Professional Athletes.

    Science.gov (United States)

    Buckley, Patrick S; Bishop, Meghan; Kane, Patrick; Ciccotti, Michael C; Selverian, Stephen; Exume, Dominique; Emper, William; Freedman, Kevin B; Hammoud, Sommer; Cohen, Steven B; Ciccotti, Michael G

    2017-07-01

    Youth participation in organized sports in the United States is rising, with many athletes focusing on a single sport at an increasingly younger age. To retrospectively compare single-sport specialization in current high school (HS), collegiate, and professional athletes with regard to the rate and age of specialization, the number of months per year of single-sport training, and the athlete's perception of injury related to specialization. Cross-sectional study; Level of evidence, 3. A survey was distributed to HS, collegiate, and professional athletes prior to their yearly preparticipation physical examination. Athletes were asked whether they had chosen to specialize in only 1 sport, and data were then collected pertaining to this decision. A total of 3090 athletes completed the survey (503 HS, 856 collegiate, and 1731 professional athletes). A significantly greater percentage of current collegiate athletes specialized to play a single sport during their childhood/adolescence (45.2% of HS athletes, 67.7% of collegiate athletes, and 46.0% of professional athletes; P sport specialization differed between groups and occurred at a mean age of 12.7 ± 2.4 (HS), 14.8 ± 2.5 (collegiate), and 14.1 ± 2.8 years (professional) (P sport-related injury than current professional athletes (25.4%) (P child to specialize to play only 1 sport during childhood/adolescence. This study provides a foundation for understanding current trends in single-sport specialization in all athletic levels. Current HS athletes specialized, on average, 2 years earlier than current collegiate and professional athletes surveyed. These data challenge the notion that success at an elite level requires athletes to specialize in 1 sport at a very young age.

  3. 从2014年世界女子冰球锦标赛看中国女冰现状%Analyzing the Current Situation of Chinese Female Ice Hockey from 2014 World Ice Hockey Championships

    Institute of Scientific and Technical Information of China (English)

    张志男

    2014-01-01

    通过对2014年世界女子冰球锦标赛B组各队比赛成绩、技战术进行统计,对目前中国女子冰球队的状态进行分析,深刻总结训练和比赛中存在的问题。中国女冰在技战术的综合能力上与世界强队相比具有较大差距,尤其是在攻区抢断、回追阻截、射门得分、防守反击等方面的问题较为突出。提出加强个人技战术的培养,结合比赛提高对抗能力,培养多变的战术体系,形成自己的技战术风格等对策和建议,旨在提高女冰的技战术水平,对中国女冰重返世界强队取得冬奥会参赛资格显得尤为重要。%By counting the performance,techniques and tactics of Group B in 2014 World Female Ice Hockey Championships,technical analyze the current situation of Chinese female ice hockey team, deeply summarize the existing problems in training and competitions. The comprehensive ability of techniques and tactics of Chinese female ice hockey team compared with the strong power list of the world with a large gap,especially on stealing in attacking zone,back up and trackles,scoring and defencing and fighting back. Put forward to strengthen the cultivation of individual techniques and tactics,improve counterforce,cultivate variable tactics system,form their own technical and tactical style,in order to improve the technical and tactical level of female ice hocky team,it is extremely important for Chinese female ice hockey team returning the world strong team to get qualification for Winter Olympics.

  4. Study on Operating Mode American Professional Ice Hockey League%北美职业冰球联赛运营模式的研究

    Institute of Scientific and Technical Information of China (English)

    申利军

    2014-01-01

    借鉴国外职业冰球联赛的成功经验对我国冰球运动的普及与冰球俱乐部的商业化运作具有重要的参考价值。北美职业冰球联赛商业运营收入的主要来源为门票和电视转播,主要支出为球员工资。领导层的相对稳定性与媒体意识,冰球文化的全球推广战略,俱乐部私有化、商业化经营模式与多元化的经营理念是实现了冰球职业俱乐部的快速发展的成功管理经验和经营理念。%It is an important reference for popularization of Chinese ice hockey and commercial operation of ice hockey clubs by using international successful experience of Professional Ice Hockey League. The main source of American Professional Ice Hockey League’s business income is the tickets and television broadcast,the main expenditure is wages of players. The relative stability and media consciousness of the leadership,global promotion strategies of ice hockey culture,the club privatization,business model and diversification management idea is the realization of the the successful management experience and business idea of the rapid development of ice hockey clubs.

  5. Commission d'evaluation de l'enseignement collegial Rapport annuel, 1993-1994 (Commisssion on the Evaluation of Collegiate Teaching Annual Report, 1993-1994).

    Science.gov (United States)

    Quebec Commission on the Evaluation of Collegiate Teaching (Quebec).

    The Commission on the Evaluation of Collegiate Teaching (CETE) was established in July 1993 by the Quebec (Canada) government to assess methods in place at province community colleges for evaluating instruction and make recommendations for improvements. This report reviews the Commission's activities, organization, and financial resources for its…

  6. Conceptual Challenges in Learning Ozone Formation for Collegiate Students

    Science.gov (United States)

    Howard, K. E.; Chung, S. H.; Jobson, B. T.; Vanreken, T. M.; Brown, S. A.

    2010-12-01

    Atmospheric chemistry in general, and tropospheric ozone formation in particular, are complex processes that to be understood require students to learn several interrelated concepts. These systems are particularly difficult to grasp because they are inherently nonlinear and because they are abstract- students do not have an obvious tangible model for how gases behave in an unbounded atmosphere. To address perceived shortfalls in our students’ conceptualizations of atmospheric chemical processes, we have endeavored to develop, implement, and assess curricular materials that can be used from the freshmen to graduate level. Our goal was to both improve student understanding of the fundamental concepts of atmospheric chemistry while simultaneously reinforcing the scientific method and what it means to do science. Our approach for achieving this was to build student-friendly interfaces to adapt existing research models for use in the classroom and thereby provide students with a means of exploring the evolution of pollutants in the atmosphere. A major focus of the project was student understanding of ozone formation. In this presentation we provide insight regarding collegiate students’ conceptions of ozone formation and discuss possible explanations for student misconceptions in this and related environmental topics of concern. In order to extract student understanding and conceptions of ozone formation, qualitative interview and analysis methodologies were implemented. These qualitative procedures allowed us to gain a rich and detailed understanding of the specific nature of students’ mental models of these concepts. Forty-five participants were included in the study, all of which were collegiate students enrolled in a junior-level Introduction to Environmental Engineering course at Washington State University. Our results show that the students seemed to comprehend many individual concepts within ozone production cycle to some extent. However, there were very

  7. ELBOW BUT NOT KNEE JOINT KINEMATICS CAN BE ASSESED USING PHOTOGRAMMETRIC METHODS DURING A NON-STATIONARY SLAP SHOT IN ICE HOCKEY

    Directory of Open Access Journals (Sweden)

    Ayhan GOKTEPE

    2009-08-01

    Full Text Available In this study, elbow and knee joint kinematics of the non stationary ice hockey slap shot was investigated using photogrammetric methods. 4 right handed elite Turkish ice hockey players from various teams participated in the study in order to scientifically obtain a general description of elbow and knee joint kinematics during a non-stationary slap shot. The loading, contact and follow through phases were analyzed using a dual camera and Pictran software system. The results showed an elbow angle pattern consistent with previous studies however a general knee angle strategy could not be obtained.

  8. 冰球守门员防守能力的提高%Improvement of Ice Hockey Goalkeeper's Defensive Ability

    Institute of Scientific and Technical Information of China (English)

    赵玉珩; 林然

    2012-01-01

      The performance of ice hockey goalkeeper plays a decisive role of winning a competition .With the method of documental information , the paper has an analysis on the defensive ability of ice hockey goal -keeper.The results show that the influencing factors relate to physical quality , specialized skills, competi-tive consciousness, psychological quality.It suggests enhancing the goalkeeper 'physical training, improving the specialized basis skills, reinforcing the competitive consciousness , improving the psychological quality . As a theoretical reference for developing the whole level of ice hockey , the above means may effectively ad-vance the goalkeeper's defensive ability.%  冰球守门员在比赛中的表现对整个比赛的胜负具有决定性的作用。通过文献资料法对冰球守门员的防守能力进行研究、分析,结果表明:影响冰球守门员防守能力的因素有身体素质、专项技术、赛场意识和心理素质,并提出加强守门员身体素质训练、提高专项基础技术、强化赛场意识和增强心理素质等提高冰球守门员防守能力的有效措施,为提高冰球运动整体水平提供理论支持

  9. 女子曲棍球项目体能训练研究现状与展望%A Review of the Studies on Women's Hockey Program of Fitness Training

    Institute of Scientific and Technical Information of China (English)

    张利锋

    2015-01-01

    团队项目体能训练是近年来世界范围内研究的热点之一,随着国外训练理念的普及和训练模式的推广,我国也逐渐开始此领域的探索性研究。中国女子曲棍球队曾在2008年奥运会中夺得亚军,但是近年来由于队员体能不足等因素的影响成绩出现了下滑。根据对我国女子曲棍球项目体能训练相关研究和训练实际情况的调查,结合当今世界身体功能训练的观点进行分析,发现目前我国女曲项目体能训练研究和实践中存在的不足,指出今后研究的方向。%Physical training of the team events has been one of the hot research subjects and China is now following suit to launch its exploratory research in this field. Chinese women's hockey team won the silver medal at the 2008 Olympic Games, but the performance has been unsatisfactory in recent years due to physical strength fail-ures and other factors. This paper investigates and analyzes the research and actual situation of the physical training of Chinese women's hockey to find out the drawbacks in physical training researches and practice.

  10. Intervención psicológica con el equipo nacional olímpico de hockey hierba femenino

    OpenAIRE

    Blanco, Isabel; Buceta, José M.

    1993-01-01

    El equipo nacional olímpico de hockey hierba femenino de España ha llevado a cabo un intenso y completo plan de preparación con vistas a su participación en los Juegos Olímpicos de Barcelona. Entre las parcelas de trabajo que ha contemplado el plan, la intervención psicológica ha ocupado un destacado lugar, con un psicólogo, el primer autor, formando parte, permanentemente, del cuadro técnico bajo la responsabilidad global del entrenador principal y otro especialista, el segundo autor, actuan...

  11. A Comparison of Somatic Variables of Elite Ice Hockey Players from the Czech ELH and Russian KHL

    Directory of Open Access Journals (Sweden)

    Kutáč Petr

    2015-03-01

    Full Text Available The goals of this study were to evaluate the basic morphological variables of contemporary elite ice hockey players, compare the parameters of players in the top Russian ice hockey league (KHL with those of the top Czech ice hockey league (ELH, and to evaluate the parameters of players according to their position in the game. The research participants included 30 KHL players (mean age: 27.1 ± 5.1 years and 25 ELH players (mean age: 26.4 ± 5.8 years. We determined body height, body mass, and body composition (body fat, fat-free mass, segmental fat analysis. All measurements were performed at the end of preseason training. The KHL players had the following anthropometric characteristics: body height 182.97 ± 5.61 cm (forward and 185.72 ± 3.57 cm (defenseman, body mass 89.70 ± 5.28 kg (forward and 92.52 ± 4.01 kg (defenseman, body fat 10.76 ± 0.63 kg (forward and 11.10 ± 0.48 kg (defenseman, fatfree mass 78.94 ± 4.65 kg (forward and 81.42 ± 3.52 kg (defenseman. The values for ELH players were as follows: body height 182.06 ± 5.93 cm (forward and 185.88 ± 7.13 cm (defenseman, body mass 88.47 ± 7.06 kg (forward and 89.36 ± 10.91 kg (defenseman, body fat 12.57 ± 2.89 kg (forward and 11.91 ± 3.10 kg (defenseman, fat-free mass 75.93 ± 6.54 kg (forward and 77.46 ± 7.89 kg (defenseman. The results indicate that it is beneficial to ice hockey players to have increased body mass and lower body fat, which leads to higher muscle mass, thus enabling a player to perform at the highest level and meet the specific challenges of the game.

  12. Variations in Star Excursion Balance Test Performance Between High School and Collegiate Football Players.

    Science.gov (United States)

    McCann, Ryan S; Kosik, Kyle B; Beard, Megan Q; Terada, Masafumi; Pietrosimone, Brian G; Gribble, Phillip A

    2015-10-01

    The Star Excursion Balance Test (SEBT) is a reliable inexpensive tool used to assess dynamic postural control deficits and efficacy in the prediction of musculoskeletal injuries, but with little previous consideration for performance differences across age and skill levels. The purpose of this study was to examine differences in SEBT scores between high school and collegiate football players. Three-hundred eighteen high school football players and 180 National Collegiate Athletic Association Division I collegiate football players volunteered to participate. Star Excursion Balance Test scores were obtained bilaterally for anterior (ANT), posterolateral (PL), and posteromedial (PM) directions, and for an overall composite (COMP) score. The mean of 3 trials from each leg was normalized to stance leg length and presented as a percentage score. Bilaterally averaged scores were compared between high school and collegiate football players using separate independent t-tests. A multiple linear backward regression determined the amount of variance in SEBT scores explained by age, mass, and height. Compared with collegiate athletes, high school athletes had lower PL (72.8 ± 11.4% vs. 77.1 ± 10.2%; p football players.

  13. Collegial relationship breakdown: a qualitative exploration of nurses in acute care settings.

    Science.gov (United States)

    Cowin, Leanne S

    2013-01-01

    Poor collegial relations can cause communication breakdown, staff attrition and difficulties attracting new nursing staff. Underestimating the potential power of nursing team relationships means that opportunities to create better working environments and increase the quality of nursing care can be missed. Previous research on improving collegiality indicates that professionalism and work satisfaction increases and that staff attrition decreases. This study explores challenges, strengths and strategies used in nursing team communication in order to build collegial relationships. A qualitative approach was employed to gather nurses experiences and discussion of communication within their nursing teams and a constant comparison method was utilised for data analysis. A convenience sampling technique was employed to access both Registered Nurses and Enrolled Nurses to partake in six focus groups. Thirty mostly female nurses (ratio of 5:1) participated in the study. Inclusion criteria consisted of being a nurse currently working in acute care settings and the exclusion criteria included nursing staff currently working in closed specialty units (i.e. intensive care units). Results revealed three main themes: (1) externalisation and internalisation of nursing team communication breakdown, (2) the importance of collegiality for retention of nurses and (3) loss of respect, and civility across the healthcare workplace. A clear division between hierarchies of nurses was apparent in how nursing team communication was delivered and managed. Open, respectful and collegial communication is essential in today's dynamic and complex health environments. The nurses in this study highlighted how important nursing communication can be to work motivation and how leadership fosters teamwork.

  14. An analysis of high-performing science students' preparation for collegiate science courses

    Science.gov (United States)

    Walter, Karen

    This mixed-method study surveyed first year high-performing science students who participated in high-level courses such as International Baccalaureate (IB), Advanced Placement (AP), and honors science courses in high school to determine their perception of preparation for academic success at the collegiate level. The study used 52 students from an honors college campus and surveyed the students and their professors. The students reported that they felt better prepared for academic success at the collegiate level by taking these courses in high school (pstudent GPA with honors science courses (n=55 and Pearson's r=-0.336), while AP courses (n=47 and Pearson's r=0.0016) and IB courses (n=17 and Pearson's r=-0.2716) demonstrated no correlation between perception of preparation and GPA. Students reported various themes that helped or hindered their perception of academic success once at the collegiate level. Those themes that reportedly helped students were preparedness, different types of learning, and teacher qualities. Students reported in a post-hoc experience that more lab time, rigorous coursework, better teachers, and better study techniques helped prepare them for academic success at the collegiate level. Students further reported on qualities of teachers and teaching that helped foster their academic abilities at the collegiate level, including teacher knowledge, caring, teaching style, and expectations. Some reasons for taking high-level science courses in high school include boosting GPA, college credit, challenge, and getting into better colleges.

  15. National Survey Results: Retention of Women in Collegiate Aviation

    Science.gov (United States)

    Turney, Mary Ann; Bishop, James C.; Karp, Merrill R.; Niemczyk, Mary; Sitler, Ruth L.; Green, Mavis F.

    2002-01-01

    Since the numbers of women pursuing technical careers in aviation continues to remain very low, a study on retention of women was undertaken by a team of university faculty from Embry Riddle Aeronautical University, Arizona State University, and Kent State University. The study was initiated to discover the factors that influence women once they have already selected an aviation career and to ascertain what could be done to support those women who have demonstrated a serious interest in an aviation career by enrolling in a collegiate aviation program. This paper reports preliminary results of data collected in the first and second years of the study. The data was collected from surveys of 390 college students (195 women and 195 men) majoring in aviation programs in nine colleges and universities, representing widely varied geographic areas and including both two- and four-year institutions. Results revealed significant areas of concern among women in pilot training. When queried about these concerns, differences were evident in the responses of the male and female groups. These differences were expected. However, a surprising finding was that women in early stages of pilot training responded differently from women in more experienced stages, These response differences did not occur among the men surveyed. The results, therefore, suggest that women in experienced stages of training may have gone through an adaptation process and reflect more male-like attitudes about a number of objects, including social issues, confidence, family, and career.

  16. Lumbar lordosis in female collegiate dancers and gymnasts.

    Science.gov (United States)

    Ambegaonkar, Jatin P; Caswell, Amanda M; Kenworthy, Kristen L; Cortes, Nelson; Caswell, Shane V

    2014-12-01

    Postural deviations can predispose an individual to increased injury risk. Specifically, lumbar deviations are related to increased low back pain and injury. Dancers and gymnasts are anecdotally suggested to have exaggerated lumbar lordosis and subsequently may be at increased risk of lumbar pathologies. Our objective was to examine lumbar lordosis levels in dancers and gymnasts. We examined lumbar lordosis in 47 healthy collegiate females (17 dancers, 29 gymnasts; mean age 20.2 ± 1.6 yrs) using 2-dimensional sagittal plane photographs and the Watson MacDonncha Posture Analysis instrument. Participants' lordosis levels were cross-tabulated and a Mann-Whitney U-test compared lumbar lordosis between groups (plordosis deviations. The distribution of lordosis was similar across groups (p=0.22). Most dancers and gymnasts had moderate or marked lumbar lordosis. The extreme ranges of motion required during dancing and gymnastics may contribute to the participants' high lumbar lordosis. Instructors should be aware that there may be links between repetitive hyperextension activities and lumbar lordosis levels in dancers and gymnasts. Thus, they should proactively examine lumbar lordosis in their dancers and gymnasts. How much age of training onset, regimens, survivor bias, or other factors influence lumbar lordosis requires study. Longitudinal studies are also needed to determine if lumbar lordosis levels influence lumbar injury incidence in dancers and gymnasts.

  17. Lateral Squats Significantly Decrease Sprint Time in Collegiate Baseball Athletes

    Directory of Open Access Journals (Sweden)

    Jason B. White

    2016-03-01

    Full Text Available The purpose was to examine the effect of prior performance of dumbbell lateral squats (DBLS on an agility movement-into-a-sprint (AMS test. Twelve collegiate, resistance-trained, baseball athletes participated in three sessions separated by three days. Session One consisted of AMS baseline test, DBLS 5-RM test, and experimental protocol familiarization. Subjects were randomly assigned the protocol order for Sessions Two and Three, which consisted of warm up followed by 1-min sitting (no-DBLS or performing the DBLS for 1 × 5 repetitions @ 5RM for each leg. Four minutes of slow recovery walking preceded the AMS test, which consisted of leading off a base and waiting for a visual stimulus. In reaction to stimulus, subjects exerted maximal effort while moving to the right by either pivoting or drop stepping and sprinting for 10 yards (yd. In Session Three, subjects switched protocols (DBLS, no-DBLS. Foot contact time (FCT, stride frequency (SF, stride length (SL, and 10-yd sprint time were measured. There were no differences between conditions for FCT, SF, or SL. Differences existed between DBLS (1.85 ± 0.09 s and no-DBLS (1.89 ± 0.10 s for AMS (p = 0.03. Results from the current study support the use of DBLS for performance enhancement prior to performing the AMS test.

  18. Skin Cancer Knowledge, Attitudes, and Behaviors in Collegiate Athletes

    Directory of Open Access Journals (Sweden)

    Courtney Hobbs

    2014-01-01

    Full Text Available Outdoor athletes represent an important group at risk for skin cancer because they are routinely exposed to high levels of ultraviolet radiation. The purpose of this study was to assess current skin cancer knowledge, attitudes, and behaviors among collegiate athletes. A modified version of the Melanoma Risk Behavior Survey was completed by 343 athletes attending a Southern University in the USA, generating an 87% response rate. Survey results demonstrated that the majority of the athletes do not limit their sun exposure and reported low levels of sun protective behaviors. In addition, athletes lacked knowledge about skin cancer and sun protection. Eighty-three percent of the athletes stated that tanning beds improve one’s overall health. Race was significantly associated with skin cancer knowledge, whereas, gender was found to be significantly associated with knowledge, attitudes, and behaviors towards skin cancer. Additionally, there was a significant relationship between knowledge and behavior, but not between attitude and behavior. This study highlights the need to educate athletes about the hazards of tanning to minimize UV exposure and promote sun protection habits. Moreover, athletes should be educated on the dangers of indoor tanning facilities and encouraged to avoid these facilities.

  19. Generating Interest in Soil Science through Collegiate Soils Contests

    Science.gov (United States)

    Baxter, Christopher; Valentine, Joe

    2015-04-01

    The inaugural National Collegiate Soils Contest (NCSC) was hosted by the University of Kentucky in Lexington, KY in 1961 and has been held every year since. Initially the NCSC was an open contest in which any team could participate, but due to increased interest, it became an event which only qualifying teams are invited to participate. To facilitate qualification, the U.S. was divided up into seven regions. Teams qualify for the NCSC by placing among the top teams within their regional contests, which are held in the fall prior to the NCSC. Typically 18-22 institutions and 80-100 students attend the NCSC each year. The NCSC is sponsored by the Soil Science Society of America (SSSA) and is organized by a committee of SSSA members that include previous and future hosts of the NCSC. The committee maintains the official rules for the NCSC and makes any necessary changes during an annual meeting. The NCSC host rotates among the seven regions and among teams within the respective regions. In 2014, the NCSC hosted by Delaware Valley College in Doylestown, PA served as qualifying contest for the team representing the U.S. at the inaugural International Soil Judging Contest in JeJu, South Korea.

  20. Salivary immunoglobulin A response to a collegiate rugby game.

    Science.gov (United States)

    Koch, Alexander J; Wherry, Amanda D; Petersen, Matthew C; Johnson, Jane C; Stuart, Melissa K; Sexton, William L

    2007-02-01

    Transient fluctuations in immune function after heavy exercise have been linked to an increased incidence of infection in athletes. Several parameters of immunity, including salivary immunoglobulin A (IgA), are affected by heavy exercise in the laboratory setting. However, few observations have been made during true competition. We tested the hypothesis that salivary IgA levels will be decreased after a collegiate rugby game. Saliva samples obtained from 16 men's college rugby players before and after an 80-minute regulation rugby game were analyzed for total volume, IgA, total protein content, and osmolality. Salivary IgA was expressed relative to secretion rate (s-IgA), osmolality (IgA-Osm), and total protein (IgA-Pro). No significant pregame-postgame changes in salivary IgA were observed (s-IgA: -13%, IgA-Osm: -16%, IgA-Pro: +10%). These data indicate that strenuous physical activity, such as a competitive rugby game, does not affect IgA levels. More study on the immune response to athletic competition is needed.

  1. Problems of collegial learning in psychoanalysis: narcissism and curiosity.

    Science.gov (United States)

    Poland, Warren S

    2009-04-01

    Despite clinical sensitivity when listening to patients, analysts have not fared well in hearing and talking to each other with respectful open-mindedness. Underlying factors are considered with particular focus on the interplay between self-aimed forces of narcissism and outward-aimed forces of curiosity. Included in examination of problems of collegial communication are limitations structurally inherent to the human mind (such as the need to abstract aspects of experience in order to focus attention plus the mind's tendency to categorical thinking), those derived from individual psychology (such as vulnerability of self-esteem), and those related to group dynamics (such as the problems attendant to new ideas and the allegiances they stir, parochialism and the development of radical schools, the competitiveness between schools). The contribution of cultural influences and the multiply determined uses of language are also highlighted. The core sense of smallness in the strangeness of the universe and in the presence of others is seen as a common thread.

  2. 77 FR 64980 - Collegiate Clean Energy, LLC; Supplemental Notice That Initial Market-Based Rate Filing Includes...

    Science.gov (United States)

    2012-10-24

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY Federal Energy Regulatory Commission Collegiate Clean Energy, LLC; Supplemental Notice That Initial Market-Based... above-referenced proceeding of Collegiate Clean Energy, LLC's application for market-based rate...

  3. Perceptions of Body Weight and Nutritional Practices among Male and Female National Collegiate Athletic Association Division II Athletes

    Science.gov (United States)

    Adams, Valerie J.; Goldufsky, Tatum M.; Schlaff, Rebecca A.

    2016-01-01

    Objective: This study investigated body weight and nutritional behavior perceptions among Division II collegiate athletes. Participants: The sample was composed of 155 collegiate athletes who responded to a survey. Methods: Data were self-reported by athletes via questionnaire. Independent-sample t tests were used to identify significant gender…

  4. "Law v. National Collegiate Athletic Association": A Guide To How Courts Will Treat Future Antitrust Challenges to NCAA Regulations.

    Science.gov (United States)

    Leduc, Marc R.

    1999-01-01

    Examines the application of antitrust law to National Collegiate Athletic Association (NCAA) rules and regulations through an analysis of the Tenth Circuit's decision in "Law v. National Collegiate Athletic Association." Suggests that the "Law" decision provides a useful framework for the analysis of future antitrust challenges to NCAA rules and…

  5. Racial/Ethnic Disparities in Collegiate Cognitive Gains: A Multilevel Analysis of Institutional Influences on Learning and Its Equitable Distribution

    Science.gov (United States)

    Kugelmass, Heather; Ready, Douglas D.

    2011-01-01

    Although numerous studies have examined racial/ethnic inequalities in collegiate student outcomes, serious attention to disparities in post-secondary student learning has emerged only recently. Using a national sample of 35,000 college seniors and 250 diverse institutions from the Collegiate Learning Assessment, this study investigates the role of…

  6. Weaving meanings from the deliberative process of collegiate management in nursing1

    Science.gov (United States)

    Higashi, Giovana Dorneles Callegaro; Erdmann, Alacoque Lorenzini

    2014-01-01

    Objective to understand the meanings of the collegiate deliberations attributed by its members on an undergraduate nursing course. Method Grounded Theory, interviews being held with 30 participants, making up 4 sample groups, between January and June 2012, in a public higher education institution. Result 5 categories emerged, indicating the phenomenon and weaving the paradigmatic model: Understanding the experience of the complex relationships and interactions in the deliberations of collegiate management in nursing: intertwining divergences, convergences, dialogs, collectivities and diversities. This deliberative process presents various meanings involving discussion, and divergent, convergent and complementary positions, through dialog, commitment and negotiation. Conclusion the deliberations in the collegiate of nursing, intertwining dialogs, collectivities and diversities, mold the complex relational fabrics. PMID:26107835

  7. Weaving meanings from the deliberative process of collegiate management in nursing

    Directory of Open Access Journals (Sweden)

    Giovana Dorneles Callegaro Higashi

    2014-04-01

    Full Text Available OBJECTIVE: to understand the meanings of the collegiate deliberations attributed by its members on an undergraduate nursing course.METHOD: Grounded Theory, interviews being held with 30 participants, making up 4 sample groups, between January and June 2012, in a public higher education institution.RESULT: 5 categories emerged, indicating the phenomenon and weaving the paradigmatic model: Understanding the experience of the complex relationships and interactions in the deliberations of collegiate management in nursing: intertwining divergences, convergences, dialogs, collectivities and diversities. This deliberative process presents various meanings involving discussion, and divergent, convergent and complementary positions, through dialog, commitment and negotiation.CONCLUSION: the deliberations in the collegiate of nursing, intertwining dialogs, collectivities and diversities, mold the complex relational fabrics.

  8. Collegial Support and Community with Trust in Swedish and Danish dentistry

    DEFF Research Database (Denmark)

    Berthelsen, Hanne; Söderfeldt, Björn; Harris, Rebecca

    2011-01-01

    . Demographic background factors, work factors, managerial factors and factors relating to objectives and to values characterizing climate of the practice were all introduced as blocks into the models. RESULTS: A different pattern emerged for Collegial Support than for Community with Trust, indicating different...... underlying mechanisms. The main results were: (I) Female, married/cohabitant, collegial network outside the practice, common breaks, formalized managerial education of leader and a climate characterized by professional values, which were positively associated with Collegial Support, while number of years...... as a dentist and being managerially responsible were negatively associated. (II) Common breaks, decision authority and a climate characterized by professional values were positively associated with Community with Trust. CONCLUSION: A professionally-oriented practice climate and having common breaks at work...

  9. Energy optimization in ice hockey halls I. The system COP as a multivariable function, brine and design choices

    CERN Document Server

    Ferrantelli, Andrea; Räikkönen, Miska; Viljanen, Martti

    2012-01-01

    This work is the first of a series of articles addressing the energy optimization in ice hockey halls. Here we outline an analytic method to predict in which design and operating conditions the COP of the entire cooling system (refrigerator and cooling tower) ${\\rm COP}_{sys}$ is maximum. ${\\rm COP}_{sys}$ is investigated as a function of several variables, like electric consumption and brine physical properties. With this method, the best configuration and brine choices for the system can therefore be determined in advance. We estimate the optimal design of an average-sized ice rink, including pipe diameter, depth and brine type (ethylene glycol and ammonia). We also single out an optimal brine density and show the impact of the electric consumption of the pump on ${\\rm COP}_{sys}$. Our theoretical predictions are validated with heat flow measurement data obtained at an ice hockey hall in Finland. They are also confronted with technical and cost-related constraints, and implemented by simulations with the pr...

  10. MENINGKATKAN PEMBELAJARAN HOCKEY MELALUI PERMAINAN 4 GAWANG KECIL PADA SISWA KELAS VIII 3 SMP MUHAMMADIYAH 4 SEMARANG TAHUN 2015

    Directory of Open Access Journals (Sweden)

    Muhammad Taufiq

    2016-02-01

    Full Text Available The purpose of this result the study learning of hockey games through the 4 Small Wicket Game in Grade VIII 3 students of Smp Muhammadiyah 4 Semarang. In this case the right is 4 semarang. research method. In practice consists of two cycles. Based on the results of the research, it showed the percentage of passing students study result in the first cycle, students who got pass score are 58.33% (21 students and who did not pass are 41.66% (15 students. In the second cycle students who got pass score are 88.88% (34 students and students who did not pass are 11.11% (4 students. It indicates an increase completeness of student study result is 30.55%.Based on the research’s result, it can be concluded that the use of 4 Small Wicket Game in Grade VIII 3 students is right to improve the study result of grade VIII 3 students of SMP Muhammadiyah 4 Semarang in learning hockey.

  11. Maintaining hydration with a carbohydrate-electrolyte solution improves performance, thermoregulation, and fatigue during an ice hockey scrimmage.

    Science.gov (United States)

    Linseman, Mark E; Palmer, Matthew S; Sprenger, Heather M; Spriet, Lawrence L

    2014-11-01

    Research in "stop-and-go" sports has demonstrated that carbohydrate ingestion improves performance and fatigue, and that dehydration of ∼1.5%-2% body mass (BM) loss results in decreased performance, increased fatigue, and increased core temperature. The purpose of this investigation was to assess the physiological, performance, and fatigue-related effects of maintaining hydration with a carbohydrate-electrolyte solution (CES) versus dehydrating by ∼2% BM (no fluid; NF) during a 70-min ice hockey scrimmage. Skilled male hockey players (n = 14; age, 21.3 ± 0.2 years; BM, 80.1 ± 2.5 kg; height, 182.0 ± 1.2 cm) volunteered for the study. Subjects lost 1.94% ± 0.1% BM in NF, and 0.12% ± 0.1% BM in CES. Core temperature (Tc) throughout the scrimmage (10-50 min) and peak Tc (CES: 38.69 ± 0.10 vs. NF: 38.92 ± 0.11 °C; p thermoregulation, and decreased fatigue as compared with drinking no fluid and dehydrating by ∼2%.

  12. Using Elite Athletes to Promote Drug Abstinence: Evaluation of a Single-Session School-Based Drug Use Prevention Program Delivered by Junior Hockey Players

    Science.gov (United States)

    Wong, Jennifer

    2016-01-01

    School-based substance use prevention programs are a common method to approaching drug use in youths. Project SOS is a single-session drug prevention program developed by police officers and delivered by elite junior hockey players to students in grades 6 and 7. The current study evaluates the effects of Project SOS at achieving its objectives of…

  13. Innovation Research on the Teaching of University Hockey Training Program%大学曲棍球培训项目教学方案创新研究

    Institute of Scientific and Technical Information of China (English)

    周婉峰

    2012-01-01

    On how to solve the problem of slow development of our hockey special teaching programs of the college students' hockey training study.First of all,about hockey development status of college students,then these three aspects of training and coaches of the athletes' physical fitness and skills training,athletes psychological quality of teaching styles and methods described in detail the college hockey training teaching program.%关于如何解决我国的曲棍球发展缓慢的问题,本文特别针对大学生曲棍球培训的教学方案做了研究。首先,文中谈到的是我国大学生曲棍球运动的发展现状,然后从运动员体能与技能的训练、运动员心理素质的培养和教练员的教学风格与方式这三个方面来详细地阐述大学曲棍球运动的培训教学方案。

  14. An examination of the Rosenberg Self-Esteem Scale using collegiate wheelchair basketball student athletes.

    Science.gov (United States)

    Vermillion, Mark; Dodder, Richard A

    2007-04-01

    The purpose was to examine the construct validity of the Rosenberg Self-esteem Scale (RSES). The construct validity of the scale was examined by applying it to collegiate wheelchair basketball student athletes at an NCAA sanctioned wheelchair basketball tournament at a mid-sized university in the south central United States (N=68). In accordance with previous research on the scale, Cronbach alpha was .86; confirmatory factor analysis supported a one-factor structure. The scale is useful for measuring global self-esteem in collegiate wheelchair basketball student athletes.

  15. Effect of Independent Crank Cycling Training On Running Economy In Collegiate Distance Runners

    OpenAIRE

    Smith, Aaron W.

    2012-01-01

    The purpose of this study was to examine the changes in running economy of collegiate cross-country runners with 6 weeks of training on the PowerCranks ™ independent bicycle crank. Thirteen collegiate cross-country runners completed the study. Participants were asked to perform 6 weeks of training with either the PowerCranks™ device or the standard cranks (control group). Participants trained 3 days per week with a 48-hour minimum rest time between training sessions. Pre- and post-running eco...

  16. 冰球运动员体能训练的新型方法%New Methods of Physical Training for Ice Hockey Players

    Institute of Scientific and Technical Information of China (English)

    张伟; 邓振杰; 党红

    2015-01-01

    冰球运动是世界上对抗最激烈的运动之一.良好的体能水平是冰球运动员合理发挥技术,巧妙运用战术,取得比赛胜利的关键,良好的体能训练方法对训练效果的影响是十分明显的.采用文献资料法、专家访谈法、归纳总结法、数理统计法等方法,通过对冰球运动员体能要求进行分析,提出冰球运动体能训练采用功能性训练这一新型体能训练方法.阐述了冰球运动员功能性体能训练的内容和具体训练方法.在当前的冰球运动员体能训练过程中,功能性训练是一种新型的体能训练方法,希望能尽快应用于冰球运动体能训练之中.为我国冰球运动的体能训练提供建设性参考意见.%Ice hockey is one of the most violent sports in the world. A good fitness level is the key to playing a reasonable technology, brilliantly using tactics and obtaining the victory for ice hockey players, good physical training methods obviously affect the training effect. With the methods of literature, expert interview, induction summary, mathematical statistics and other methods, by analyzing the physical requirements of ice hockey players, put forward physical training of ice hockey should use functional training which is a new type of physical training method. This paper expounds the content and specific training methods of functional physical training for ice hockey players. In the current training process, functional training is a new type of physical training method, which is hoped to be applied to the physical training of ice hockey. Provide constructive suggestions for physical training of ice hockey in our country.

  17. Upper extremity sensorimotor control among collegiate football players.

    Science.gov (United States)

    Laudner, Kevin G

    2012-03-01

    Injuries stemming from shoulder instability are very common among athletes participating in contact sports, such as football. Previous research has shown that increased laxity negatively affects the function of the sensorimotor system potentially leading to a pathological cycle of shoulder dysfunction. Currently, there are no data detailing such effects among football players. Therefore, the purpose of this study was to examine the differences in upper extremity sensorimotor control among football players compared with that of a control group. Forty-five collegiate football players and 70 male control subjects with no previous experience in contact sports participated. All the subjects had no recent history of upper extremity injury. Each subject performed three 30-second upper extremity balance trials on each arm. The balance trials were conducted in a single-arm push-up position with the test arm in the center of a force platform and the subjects' feet on a labile device. The trials were averaged, and the differences in radial area deviation between groups were analyzed using separate 1-way analyses of variance (p football players showed significantly more radial area deviation of the dominant (0.41 ± 1.23 cm2, p = 0.02) and nondominant arms (0.47 ± 1.63 cm2, p = 0.03) when compared with the control group. These results suggest that football players may have decreased sensorimotor control of the upper extremity compared with individuals with no contact sport experience. The decreased upper extremity sensorimotor control among the football players may be because of the frequent impacts accumulated during football participation. Football players may benefit from exercises that target the sensorimotor system. These findings may also be beneficial in the evaluation and treatment of various upper extremity injuries among football players.

  18. Depth Perception Improvement in Collegiate Baseball Players with Vision Training

    Directory of Open Access Journals (Sweden)

    Joseph F. Clark, PhD, ATC

    2015-04-01

    Full Text Available Background: Vision training is rapidly becoming a component of sports enhancement, but quantifiable and validated improvement in visual performance has not been clearly demonstrated in high-caliber and/or collegiate athletes. We have performed vision training for the last three seasons on the University of Cincinnati baseball team’s hitters. The goal for the work was performance enhancement, and for monitoring purposes, we measured stereopsis pre- and post-vision training. Methods: From the preseason (January 2011 through to the end of the season (May 2013, all hitters in the University of Cincinnati baseball team underwent regular vision training. Out-of-season training was 20 minutes twice per week, and in-season was 20 minutes once per week. Traditional stereopsis (Stereo Fly was performed and recorded. Vision training typically consisted of: Dynavision light board, Brock string, strobe glasses, Eyeport, saccades, and near-far. Results: The players consistently came into the season with stereopsis of 23.7 ± 1.0 mm, and six weeks of training increased this stereopsis to 36.9 ± 0.49 mm (p<0.0001. Discussion: There was a consistent and significant improvement in stereopsis measured by Stereo Fly with the baseball team after 6 weeks of vision training. Equally, the stereopsis returned to baseline out of season. Temporal benefits seemed to continue post-6 weeks of vision training. We conclude that in a population of healthy and high-caliber athletes, stereopsis can improve with training and suffer from detraining effects as well. We suggest that vision training for sports that require good stereo acuity be considered.

  19. The contribution of maximal force production to explosive movement among young collegiate athletes.

    Science.gov (United States)

    Peterson, Mark D; Alvar, Brent A; Rhea, Matthew R

    2006-11-01

    Critical to multidimensional sport conditioning is a systematic knowledge of the interactions between fitness components, as well as the transference relationships to performance. The purpose of this investigation was to examine the relationships between lower body muscular strength and several fundamental explosive performance measures. Fifty-four men and women collegiate athletes were tested to determine (a) lower-body muscular strength (1 repetition maximum barbell back squat), (b) countermovement vertical jump height and peak power output, (c) standing broad jump distance, (d) agility (cone T-test time), (e) sprint acceleration (m.s(-2)), and (f) sprint velocity (m.s(-1)). Analyses were performed using Pearson r correlations to examine these relationships. Partial correlations tested for relationships between performance measures while controlling for muscular strength. T-tests were performed to assess the difference between men and women. Correlation data demonstrated that significant (p linear relationships were indicated between muscular strength and power, as well as every sport-performance field tests. However, when controlling for strength with partial correlation, each of these relationships appreciably diminished. Significant differences (p men and women for each of the performance tests. Muscular strength, peak power output, vertical jumping ability, standing broad jump, agility, sprint acceleration, and sprint velocity were all shown to be very highly related. Further examination demonstrated that body mass-adjusted muscular strength is more highly related to performance measures than is absolute muscular strength. Current correlation data provide a quantified look at the interaction between muscular fitness components, as well as the transfer relationship to several athletic-specific performance measures.

  20. The accuracy of the body adiposity index for predicting body fat percentage in collegiate female athletes.

    Science.gov (United States)

    Esco, Michael R

    2013-06-01

    The body adiposity index (BAI) is a new simplistic method for predicting body fat percentage (BF%) via a simple equation of hip circumference to height. A scientific study of this novel method in athletic groups is warranted because of the possibility of it serving as an inexpensive field technique. The purpose of this study was to cross-validate the BAI for predicting BF% in a group of collegiate female athletes by using dual-energy x-ray absorptiometry (DXA) as the criterion variable. Thirty college-aged female athletes (age = 20.0 ± 1.3 years) participated in this study. For each participant, BF% was obtained with the BAI method and compared with DXA. The mean BF% was 27.1 ± 3.4 by the BAI and 26.7 ± 5.9 from DXA, which was not significantly different (p > 0.05). However, the BAI did not provide a significant correlation with the DXA (r = 0.28, R2 = 0.08, p > 0.05) and resulted in a standard error of estimate = 5.78% and total error = 5.84%. Bland-Altman plot showed that the limits of agreement (95% confidence intervals) between the DXA and BAI ranged between -10.2 and 11.8%, and there was a significant negative association between the difference and mean of the 2 methods (r = -0.52, p < 0.01). The results of this investigation indicate that BAI results in large individual errors when predicting BF% in female athletes and has a tendency to provide overestimated values as BF% decreases. Therefore, this method should not be used for predicting individual BF% in athletic women.

  1. 冰球守门员心理状态的调控%Regulation of Ice Hockey Goalkeeper's Psychological State

    Institute of Scientific and Technical Information of China (English)

    刘学

    2013-01-01

    冰球比赛不仅仅是体能和技术的较量,而且还是心理素质的较量,在运动员的技术动作、训练水平和身体素质相近的比赛中,往往决定比赛胜负的是心理因素。对冰球运动员心理状态调控的意义进行探讨,提出采用模拟训练法、放松训练法、表象训练法、自我暗示法、注意力集中训练法、预防Cho-king现象、克服瓦伦达心态和诱导训练法等调控方法,提高冰球守门员的感知、判断和抗干扰能力,使冰球守门员形成良好的心理素质,使其在激烈的比赛中发挥出较高水平,带领球队在比赛中获得胜利。%Ice hockey is not only physical and technical thing , but also the psychological thing .In the similar technical movements , training level and physical quality competition , psychological factor is often the key to win the competition .The paper has a research on the significance of controlling ice hockey athletes'psycho-logical state , puts forward that using the methods of simulation training , relaxation training , mental training method , self-suggestion , focused training , prevention Choking phenomenon , culturing Wallenda's psycho-logical state improve the perception , judgment and anti -interference ability to make ice hockey goalkeepers form good psychological quality , in order to perform a higher level in the gruelling competition and leading the team to win the competition .

  2. An Examination of Psychosocial Correlates of Eating Disorders among Female Collegiate Athletes

    Science.gov (United States)

    Petrie, Trent A.; Greenleaf, Christy; Reel, Justine J.; Carter, Jennifer E.

    2009-01-01

    With female collegiate athletes, we examined the relationship of eating pathology to body image concerns, weight pressures, sociocultural internalization, and mood state. Multivariate analyses revealed that the symptomatic and eating disorder groups were similar on seven of eight weight pressures, three of four mood states, on internalization, and…

  3. Social Connectedness, Self-Esteem, and Depression Symptomatology among Collegiate Athletes versus Nonathletes

    Science.gov (United States)

    Armstrong, Shelley; Oomen-Early, Jody

    2009-01-01

    Objective: The authors compared collegiate athletes and nonathletes to see whether there were significant differences in the perceived levels of social connectedness, self-esteem, and depression and if an interaction among the variables of athlete status, gender, GPA, BMI, and levels of weekly exercise and sleep were associated with depression…

  4. Perceived Benefits of Service Learning: A Comparison of Collegiate Recreation Concentrations

    Science.gov (United States)

    Fisher, Eden E.; Sharp, Ryan L.; Bradley, Michael J.

    2017-01-01

    Service learning is becoming a more utilized method of instruction in collegiate settings, and holds the potential to provide a deeper, more transferable meaning of course material for students. The purpose of this research was to examine if therapeutic recreation (TR) concentration students perceived service learning to be more personally and…

  5. Collegiate Aviation and the Community College: A Survey of Post-September 11 Issues

    Science.gov (United States)

    Bliss, Timm J.; Kutz, Mary N.

    2008-01-01

    Undoubtedly, the aviation industry has experienced turbulent times recently and may face significant restructuring in the next few years. Especially noteworthy has been the impact on collegiate flight programs, particularly those 2-year programs offered by community colleges that often bridge the gap in financial aid and flexible class schedules…

  6. Ethical Professional Identity and the Development of Moral Exemplar Collegiate Coaches

    Science.gov (United States)

    Hamilton, Maya G. B.; LaVoi, Nicole M.

    2017-01-01

    Coaches have the potential to influence athletes' moral development, especially at the collegiate level--a powerful period of growth in young adults' lives. As central agents in athlete moral education, coaches' moral development and understanding of professionalism is currently unknown. The purpose of this study was to increase understanding of…

  7. Review of the Literature Regarding Female Collegiate Athletes with Eating Disorders and Disordered Eating

    Science.gov (United States)

    Klasey, Nicole

    2009-01-01

    The primary objective of this review of literature was to examine the relationship of eating disorders and disordered eating among female collegiate athletes. Since the institution of Title IX in 1972, the Educational Amendment to the Civil Rights Act of 1964, female participation in sports has been consistently rising at all levels of…

  8. Prevalence of Musculoskeletal Injury Among Collegiate Marching Band and Color Guard Members.

    Science.gov (United States)

    Beckett, Sarah; Seidelman, Lindsey; Hanney, William J; Liu, Xinliang; Rothschild, Carey E

    2015-06-01

    To investigate the prevalence of musculoskeletal injury (MSI) in collegiate marching band and color guard members and the associated factors. An electronic survey was developed and delivered via the Qualtrics survey platform to collegiate marching band and color guard members in the United States. Information collected included demographics; years of experience; training and performance characteristics; footwear worn; instrument played/equipment used; participation in stretching/strengthening programs; injury prevalence and type; treatment sought for injury; and participation time lost due to injury. There were 1,379 (792 female, 587 male) members of 21 collegiate marching bands who completed the survey. Respondents had an average age of 19.8 yrs, height 171.9 cm, weight 72.3 kg, and BMI 24.4 kg/m2. Twenty-five percent of respondents reported sustaining a MSI as a result of participating in marching band or color guard. Females were 20% more likely to sustain a MSI and 87.7% of MSI involved the lower extremity. A significant difference in BMI was found between those who did and did not sustain a MSI (p=0.014). Members of collegiate marching band and color guard may be at risk of sustaining a MSI due to the repetitive nature of the activities performed during practice and performance. The lower extremity is more prone to injury, and a higher BMI may be a risk factor for MSI in this population.

  9. Collegiate Aviation and the Community College: A Survey of Post-September 11 Issues

    Science.gov (United States)

    Bliss, Timm J.; Kutz, Mary N.

    2008-01-01

    Undoubtedly, the aviation industry has experienced turbulent times recently and may face significant restructuring in the next few years. Especially noteworthy has been the impact on collegiate flight programs, particularly those 2-year programs offered by community colleges that often bridge the gap in financial aid and flexible class schedules…

  10. Gruel and Unusual Nourishment: The Evolving History of Collegiate Food Service

    Science.gov (United States)

    Krehbiel, Lee E.; Meabon, Dave L.

    2006-01-01

    This article focuses on the origins, evolution, and social roles played by food service at colleges and universities. It emphasizes: (1) the gradual assumption of responsibility for housing and meals by universities during the medieval period; (2) the role of food service in the "collegiate way" philosophy so influential in British and…

  11. Cohesion and Trauma: An Examination of a Collegiate Women's Volleyball Team

    Science.gov (United States)

    Fletcher, Teresa B.; Meyer, Barbara B.

    2009-01-01

    This study examined the effects of Adventure Based Counseling (i.e., a low-element challenge program) on the cohesion of a collegiate women's volleyball team. Results suggest postintervention improvements in team cohesion. The support created in the challenge experience also transferred to the players helping one another to grieve the untimely…

  12. Faculty Perceptions of Organizational Culture and Collegiality at Protestant Christian Universities in the Pacific Northwest

    Science.gov (United States)

    Johnson, Jamie R.

    2013-01-01

    This study focused on faculty perceptions of organizational culture and collegiality at denominationally affiliated Christian colleges and universities in the Pacific Northwest. It was found that while faculty members perceive tension around their experience of organizational culture, the extent of their relationships as cultivated through formal…

  13. The Importance of Agriculture Science Course Sequencing in High Schools: A View from Collegiate Agriculture Students

    Science.gov (United States)

    Wheelus, Robin P.

    2009-01-01

    The objective of this study was to investigate the importance of Agriculture Science course sequencing in high schools, as a preparatory factor for students enrolled in collegiate agriculture classes. With the variety of courses listed in the Texas Essential Knowledge and Skills (TEKS) for Agriculture Science, it has been possible for counselors,…

  14. How Stereotypes Affect Current Collegiate Female Athletes' Athletic Experiences

    Science.gov (United States)

    James, Melissa

    2017-01-01

    Stereotype discrimination affects female athletes' athletic experiences. Studies have been conducted of former collegiate female athletes' perceptions of the lesbian stereotype found that they were discriminated against because of their sport participation. These limit the recalling of thoughts and experience from the female athletes' playing…

  15. Rx for a Party: A Qualitative Analysis of Recreational Pharmaceutical Use in a Collegiate Setting

    Science.gov (United States)

    Quintero, Gilbert

    2009-01-01

    Objective: Using a qualitative methodology, the author examined the sociorecreational use of pharmaceuticals in a collegiate setting. Participants: In all, 91 college students from a public, 4-year institution for higher learning in the Southwest participated in this study. Methods: The author conducted semistructured interviews between May 2004…

  16. The Relationship between Peer Coaching, Collaboration and Collegiality, Teacher Effectiveness and Leadership

    Science.gov (United States)

    Koch, Margaret-Ann

    2014-01-01

    Professional development allows teachers to create professional knowledge and increase collaboration and collegiality to promote quality teaching and leadership. Peer coaching is frequently overlooked as a form of professional development. The purpose of this quantitative study was to examine the effect of participation in a voluntary…

  17. How the Collegiate Religious and Spiritual Climate Shapes Students' Ecumenical Orientation

    Science.gov (United States)

    Rockenbach, Alyssa Bryant; Mayhew, Matthew J.

    2013-01-01

    Using data from the collegiate religious and spiritual climate survey, this study examined the relationship between campus climate and ecumenical orientation. Space for spiritual support and expression, provocative encounters with worldview diversity, and challenging curricular experiences are associated with ecumenical orientations, but some…

  18. PRE-AND POST-ACTIVITY STRETCHING PRACTICES OF COLLEGIATE ATHLETIC TRAINERS IN THE UNITED STATES.

    Science.gov (United States)

    Popp, Jennifer K; Bellar, David; Hoover, Donald L; Craig, Bruce W; Leitzelar, Brianna N; Wanless, Elizabeth A; Judge, Lawrence W

    2015-02-14

    The aim of the study was to investigate the knowledge and practices of collegiate-certified athletic trainers (ATs) in the United States. Participants (n= 521) were provided an overview of the study, as well as a hyperlink to a web-based survey. The "Pre- and Post-Activity Practices in Athletic Training Questionnaire" consisted of demographic items and elements to measure knowledge and practices related to pre- and post-activity stretching routines. In previous studies, the survey demonstrated construct validity, α = .722. Pearson chi-square test was used to evaluate goodness of fit, and kappa was calculated to measure agreement between items. Only 32.2% of ATs recommended dynamic stretching (DS) to be performed pre-activity, whereas a larger percentage (42.2%) recommended a combination of static stretching (SS) and DS. ATs reported that only 28.0% of athletes are performing DS prior to activity. Conversely, 60.6% of collegiate ATs recommended SS post-exercise, and 61.0% of athletes agree and perform post-workout static stretching (κ=0.761, P<0.001). Collegiate ATs appear to under-utilize the current research evidence, which indicates that DS is more beneficial than SS when used pre-activity, and ATs continue to regularly incorporate SS in their pre-activity routines. However, there is evidence that collegiate ATs in the United States emphasize SS post-activity in a manner consistent with current research.

  19. Implementation of a High-Performance Cardiopulmonary Resuscitation Protocol at a Collegiate Emergency Medical Services Program

    Science.gov (United States)

    Stefos, Kathryn A.; Nable, Jose V.

    2016-01-01

    Out-of-hospital cardiac arrest (OHCA) is a significant public health issue. Although OHCA occurs relatively infrequently in the collegiate environment, educational institutions with on-campus emergency medical services (EMS) agencies are uniquely positioned to provide high-quality resuscitation care in an expedient fashion. Georgetown University's…

  20. World Percussion Approaches in Collegiate Percussion Programs: A Mixed-Methods Study

    Science.gov (United States)

    Hernly, Patrick

    2012-01-01

    As world percussion has grown in popularity in American colleges and universities, two main problems have emerged. The first problem is that no known source exists detailing how percussion instructors have incorporated world percussion into their collegiate teaching. A review of the literature has highlighted four main approaches to incorporating…

  1. Cohesion and Trauma: An Examination of a Collegiate Women's Volleyball Team

    Science.gov (United States)

    Fletcher, Teresa B.; Meyer, Barbara B.

    2009-01-01

    This study examined the effects of Adventure Based Counseling (i.e., a low-element challenge program) on the cohesion of a collegiate women's volleyball team. Results suggest postintervention improvements in team cohesion. The support created in the challenge experience also transferred to the players helping one another to grieve the untimely…

  2. The Effect of the Research Assessment Exercise on Organisational Culture in English Universities: Collegiality versus Managerialism

    Science.gov (United States)

    Yokoyama, Keiko

    2006-01-01

    The purpose of the study is to identify the effect of the research assessment exercise (RAE) on the balance between collegiality and managerialism in English universities. The article examines the institutional strategies for the 2001 RAE and its effect on organisational culture, identifying change in governance, management and leadership in…

  3. Greek Organization Membership and Collegiate Outcomes at an Elite, Private University

    Science.gov (United States)

    Walker, Jay K.; Martin, Nathan D.; Hussey, Andrew

    2015-01-01

    In this study, we use detailed survey and institutional data from a prospective panel study of students attending a highly selective, private university to examine the effects of fraternity or sorority membership on a range of collegiate outcomes. Previous research has given insufficient attention to selection issues inherent in the study of…

  4. Integrating and Analyzing Psychosocial and Stage Theories To Challenge the Development of the Injured Collegiate Athlete.

    Science.gov (United States)

    Harris, Laura L.

    2003-01-01

    Integrated a psychosocial developmental theory (the Kubler-Ross Stage Theory) and a psychological stage theory (the Ross Stage Theory) and a psychological stage theory (the Chickering and Reisser psychosocial and developmental theory) for challenging injured collegiate student-athletes' personal development. A search of online databases from…

  5. Rx for a Party: A Qualitative Analysis of Recreational Pharmaceutical Use in a Collegiate Setting

    Science.gov (United States)

    Quintero, Gilbert

    2009-01-01

    Objective: Using a qualitative methodology, the author examined the sociorecreational use of pharmaceuticals in a collegiate setting. Participants: In all, 91 college students from a public, 4-year institution for higher learning in the Southwest participated in this study. Methods: The author conducted semistructured interviews between May 2004…

  6. The Impact of Technology Integration upon Collegiate Pedagogy from the Lens of Multiple Disciplines

    Science.gov (United States)

    Swanson, Joan Ann

    2016-01-01

    Technology integration on college campuses has become both a reality and necessity to meet the demands for function and flow in an ever advancing world of learning. This study qualitatively reviewed how a multi-disciplinary sample of collegiate instructors viewed technology and how they incorporated it into their pedagogy. Results indicated a…

  7. Power Soccer: Experiences of Students Using Power Wheelchairs in a Collegiate Athletic Club

    Science.gov (United States)

    Wessel, Roger D.; Wentz, Joel; Markle, Larry L.

    2011-01-01

    Intercollegiate athletics provides an opportunity for improving the societal perceptions and overall quality of life of physically disabled persons. Athletic opportunities in the collegiate atmosphere allow such students to be socially, psychologically, and physically engaged. This study focused on how involvement in a Power Soccer collegiate…

  8. Extending Home Advantage Theory and Four Factor Theory to Men's Collegiate Basketball

    Science.gov (United States)

    Kelly, Yvan J.

    2013-01-01

    In sporting events, the home team has been found to win a disproportionate amount of games. Research into this home advantage phenomenon resulted in Courneya and Carron's framework of home advantage theory. In collegiate athletics, administrators face a competitive environment and a goal of enhancing revenues. The problem is that home…

  9. Juego, Cultura y Desarrollo en la Infancia: El caso del Palín Mapuche y el Hockey. Play, Culture and Development in Childhood: Analysis of Mapuche’s Palin and Hockey.

    Directory of Open Access Journals (Sweden)

    Garoz , Ignacio

    2006-01-01

    Full Text Available ResumenEl propósito del presente trabajo consiste en analizar los juegos de reglas, partiendo de su papel como transmisores de conocimiento sobre el mundo social (valores, creencias, normas, roles, etc., a partir del planteamiento piagetiano de la comprensión de las reglas de los juegos por los niños. Se aborda cómo se produce la evolución del conocimiento práctico y teórico de las reglas y se incorpora el estudio sobre el desarrollo del conocimiento del significado de los juegos, de sus reglas y acciones. Se utiliza un enfoque transcultural que nos permita comprender las diferencias entre el desarrollo de la regla a través de un juego deportivo como el hockey hierba en España y un juego tradicional del pueblo indígena mapuche de Chile, el palín o chueca.AbstractThe aim of this work is to analyse rule games and their importance in conveying understanding of the social world (values, beliefs, norms, roles, etc., following the Piagetian explanation of how children understand the rules of the games. Starting with the development of practical and theoretical grasp of rules the study includes children's understanding of meaning of games, their rules and play actions. A crosscultural comparison is used to explore the differences between how an understanding of rule is developed in a sporting game such as grass hockey in Spain and in a traditional game of the Mapuche indigenous tribe of Chile, such as palin (or chueca.

  10. Inicios del Hockey patines en Sevilla. El Patín Claret en la década de los 70 del siglo XX = Beginnings of Roller Hockey in Seville. Claret Skate in the Decade of the Twenthieh Century 70

    Directory of Open Access Journals (Sweden)

    Jaime Segundo Cuesta Pérez

    2013-10-01

    Full Text Available En el siguiente artículo, se trata de presentar una de las páginas más importantes de la historia del Hockey Patines en Andalucía y más concretamente en la ciudad de Sevilla. Un deporte prácticamente copado desde sus inicios por equipos catalanes y cuya implantación en el resto del país ha sido muy complicada, siendo aún hoy en día muy escasa por toda España, salvo en regiones muy localizadas como Cataluña, Madrid, o Galicia. Estos que ahora presentamos son parte de los orígenes de este deporte en la capital andaluza, de los cuales nacería, para sorpresa de muchos, un equipo que alcanzaría importantes hitos en la División de Honor Nacional de este deporte.---------------------------------------------------------------------In the next article, we try to present one of the most important papers of the roller hockey history in Andalucía, concretely in Seville. This sport has been surrounded from its beginning by teams from Cataluña, while the establishment in the rest of the country has been very difficult, being still today quite scarce all over Spain, except in some regions such as Cataluña, Madrid or Galicia. We will try to show you the origin of this sport in the capital of Andalucía, from where was born, surprising everybody, a team wich achieved great landmark in the Pride National Division of this sport.

  11. Our Country Inline Hockey Sports Present Situation and Trend of Development Research%我国陆地冰球运动现状及发展趋势研究

    Institute of Scientific and Technical Information of China (English)

    刘春华; 刘玉华

    2012-01-01

      陆地冰球运动是冰球运动的延拓,它不受时间、地点和自然条件的影响,是一个全国范围内都可推广和发展的大众群体项目。通过对我国陆地冰球运动现状的研究,探讨了陆地冰球在我国民间发展的潜力和可行性,认为我国应加强对陆地冰球的大力宣传,形成一个以赛促发展的良性循环,培养更多的陆地冰球运动员,转向冰球运动的优秀后备人才,使之成为促进我国冰球运动发展和提高的重要力量。%  The land-based hockey hockey extension and it is not the time, place and the impact of natural conditions, it is available a nationwide promotion and development of the Volkswagen group project. In this paper, the analysis of the status quo of land ice hockey seminar to explore the potential and feasibility of the land of hockey in the development of our country folk, that China should strengthen Hockey's great publicity, the formation of a tournament to promote the development of a virtuous circle, and train more land ice hockey player, outstanding reserve talents turned to ice hockey, so become an important force to promote the development of China's ice hockey and improve.

  12. Relationship of collegiate football experience and concussion with hippocampal volume and cognitive outcomes.

    Science.gov (United States)

    Singh, Rashmi; Meier, Timothy B; Kuplicki, Rayus; Savitz, Jonathan; Mukai, Ikuko; Cavanagh, LaMont; Allen, Thomas; Teague, T Kent; Nerio, Christopher; Polanski, David; Bellgowan, Patrick S F

    2014-05-14

    Concussion and subconcussive impacts have been associated with short-term disrupted cognitive performance in collegiate athletes, but there are limited data on their long-term neuroanatomic and cognitive consequences. To assess the relationships of concussion history and years of football experience with hippocampal volume and cognitive performance in collegiate football athletes. Cross-sectional study conducted between June 2011 and August 2013 at a US psychiatric research institute specializing in neuroimaging among collegiate football players with a history of clinician-diagnosed concussion (n = 25), collegiate football players without a history of concussion (n = 25), and non-football-playing, age-, sex-, and education-matched healthy controls (n = 25). History of clinician-diagnosed concussion and years of football experience. High-resolution anatomical magnetic resonance imaging was used to quantify brain volumes. Baseline scores on a computerized concussion-related cognitive battery were used for cognitive assessment in athletes. Players with and without a history of concussion had smaller hippocampal volumes relative to healthy control participants (with concussion: t48 = 7.58; P football played (t46 = -3.62; P football and reaction time (ρ42 = -0.43; 95% CI, -0.46 to -0.40; P = .005). Among a group of collegiate football athletes, there was a significant inverse relationship of concussion and years of football played with hippocampal volume. Years of football experience also correlated with slower reaction time. Further research is needed to determine the temporal relationships of these findings.

  13. A Longitudinal Examination of Work-Life Balance in the Collegiate Setting.

    Science.gov (United States)

    Mazerolle, Stephanie; Eason, Christianne

    2016-03-01

    The literature regarding work-life balance (WLB) is plentiful, particularly in the National Collegiate Athletic Association Division I collegiate setting due to its demanding nature as defined by work hours and travel. Despite the comprehensive understanding of factors contributing to WLB for athletic trainers (ATs) in this setting, the effect of time of year has yet to be investigated. To determine the influence sport season timing (ie, preseason, in-season, off-season) can have on perceptions and experiences of WLB for ATs. Qualitative, case-study design. Division I collegiate practice setting. Six ATs employed in the Division I college setting (3 women, 3 men) volunteered and completed our study over 1 year. The average age of participants was 31.0 ± 3 years, and they had 9.0 ± 3 years of experience. We conducted semistructured one-on-one phone interviews with each participant at 4 points during the year (August, November, February, June). All interviews were transcribed verbatim. Data were analyzed inductively, and we used peer review, multiple-analyst triangulation, and member checks for credibility. Time of year (eg, competitive in-season), organizational demands (eg, hours and travel), and life stage (eg, roles assumed) were factors that influenced WLB for ATs in the collegiate setting. Having a positive and adaptable mind-set; having coworker, supervisor, and personal support; and engaging in personal or family time were factors that counterbalanced the inhibitors. Our results indicate that a career as an AT in the collegiate setting can create WLB concerns; these concerns, however, seem to peak during the competitive in-season for the AT's primary coverage team. Additionally, conflict that arises for ATs seems to be stimulated by time, as work roles are often less accommodating due to the athletic atmosphere.

  14. Effectiveness of competitive activity of high class hockey players accounting a level of their self-esteem

    Directory of Open Access Journals (Sweden)

    Mikhnov A.P.

    2015-02-01

    Full Text Available Purpose : study the effect of increasing the level of self-esteem on the efficiency of competitive activity of high class players. Material : the study involved sixteen athletes (Atlanta, Moscow region. - Continental Hockey League. Results : it was found that the application of special training self-esteem increases the level of implementation of technical and tactical action games. Number of goals increased by 8.92%, assists - 21.5%, the total number of shots on goal - to 20.02%. Conclusions : it is recommended specialized program correction level of self-esteem from 10 separate studies. Classes have different target setting: habit forming positive attitudes towards themselves, develop skills of active life position, securing high self-esteem. The program is used for two weeks in the preparatory period of training.

  15. Promoting respect for the rules and injury prevention in ice hockey: evaluation of the fair-play program.

    Science.gov (United States)

    Brunelle, J P; Goulet, C; Arguin, H

    2005-09-01

    To reduce the number of transgressions to the rule, the occurrence of violent acts and to prevent injuries, Hockey Québec adopted the Fair-Play Program (FPP). The objective of the present study was to evaluate the effectiveness of the FPP. 52 Bantam (14-15 years) teams participated in this cohort study. In total, 49 games (13 with the FPP, 36 without FPP) were systematically assessed for transgressions to the rule. Body checking was allowed in all games. Transgressions to the rule data were obtained using a real time observation system in a natural setting, while injury data were collected through a self-administered questionnaire. Data were analysed using generalised linear models with generalised estimating equations accounting for potential team effect. The number of penalties per game was significantly lower (p fair play values. Moreover, this project clearly showed the importance of program evaluation and the value of direct observation in a natural setting.

  16. An observational method to code concussions in the National Hockey League (NHL): the heads-up checklist.

    Science.gov (United States)

    Hutchison, Michael G; Comper, Paul; Meeuwisse, Willem H; Echemendia, Ruben J

    2014-01-01

    Development of effective strategies for preventing concussions is a priority in all sports, including ice hockey. Digital video records of sports events contain a rich source of valuable information, and are therefore a promising resource for analysing situational factors and injury mechanisms related to concussion. To determine whether independent raters reliably agreed on the antecedent events and mechanisms of injury when using a standardised observational tool known as the heads-up checklist (HUC) to code digital video records of concussions in the National Hockey League (NHL). The study occurred in two phases. In phase 1, four raters (2 naïve and 2 expert) independently viewed and completed HUCs for 25 video records of NHL concussions randomly chosen from the pool of concussion events from the 2006-2007 regular season. Following initial analysis, three additional factors were added to the HUC, resulting in a total of 17 factors of interest. Two expert raters then viewed the remaining concussion events from the 2006-2007 season, as well as all digital video records of concussion events up to 31 December 2009 (n=174). For phase 1, the majority of the factors had a κ value of 0.6 or higher (8 of 15 factors for naïve raters; 11 of 15 factors for expert raters). For phase 2, all the factors had a total percent agreement value greater than 0.8 and κ values of >0.65 for the expert raters. HUC is an objective, reliable tool for coding the antecedent events and mechanisms of concussions in the NHL.

  17. Laboratory Determinants of Repeated-Sprint and Sport-Specific-Technique Ability in World-Class Ice Sledge Hockey Players.

    Science.gov (United States)

    Baumgart, Julia Kathrin; Sandbakk, Øyvind

    2016-03-01

    To investigate on-ice repeated-sprint and sports-specific-technique abilities and the relationships to aerobic and anaerobic off-ice capacities in world-class ice sledge hockey players. Twelve Norwegian national team players performed 8 repeated maximal 30-m sprints and a sports-specific-technique test while upper-body poling on ice, followed by 4 maximal upper-body strength tests and 8-s peak power and 3-min peak aerobic-capacity (VO2peak) tests while ergometer poling. The fastest 30-m sprint time was 6.5 ± 0.4 s, the fastest initial 10-m split-time 2.9 ± 0.2 s, and the corresponding power output 212 ± 37 W. Average 30-m time during the 8 repeated sprints was 6.7 ± 0.4 s, and the sprint-time decrement was 4.3% ± 1.8%. Time to execute the sport-specific-technique test was 25.6 ± 2.7 s. Averaged 1-repetition-maximum strength of the 4 exercises correlated with the fastest 30-m sprint time (r = -.77), the fastest initial 10-m split time (r = -.72), the corresponding power output (r = .67), and the average 30-m sprint time (r = -.84) (all P sprint test correlated with the highest initial 10-m power (r = .83, P sprint time (r = -.68, P sprint-time decrement. All off-ice variables except VO2peak correlated with technique-test time (r = -.58 to .73, all P ability to sprint fast and rapid execution of a technically complex test, whereas mode-specific endurance capacity is particularly important for maintenance of sprint ability in ice sledge hockey.

  18. Adding whole body vibration to preconditioning exercise increases subsequent on-ice sprint performance in ice-hockey players.

    Science.gov (United States)

    Rønnestad, Bent R; Slettaløkken, Gunnar; Ellefsen, Stian

    2016-04-01

    The phenomenon postactivation potentiation can possibly be used to acutely improve sprint performance. The purpose of this study was to investigate the effect of body-loaded half-squats with added whole body vibration (WBV) on subsequent 20 m on-ice sprint performance. Fifteen male ice-hockey players performed 4 test sessions on separate days and in a randomized order. Two of this test sessions were with WBV and 2 were with noWBV and the best sprint time was used to determine effectiveness. Each test session included preconditioning 30 seconds half-squat exercise, 2 of which were supplemented with 50 Hz WBV at a amplitude of 3 mm. One minute after the cessation of the preconditioning exercise, the 20 m sprint test was performed. Intermediate time was sampled after 10 m. Preconditioning exercise performed with 50 Hz WBV resulted in superior 10 m and 20 m sprint performance compared to preconditioning exercise performed without WBV (1.84 6 0.10 seconds vs. 1.89 6 0.10 seconds and 3.14 6 0.13 vs. 3.17 6 0.13 seconds, respectively, p # 0.01). There was no difference between the protocols in perceived well-being of the legs before the warm-up or after the warm up (p = 0.3). However, there was an improved well-being in the legs immediately after the preconditioning exercise with WBV (p , 0.05). In conclusion, preconditioning exercise performed with WBV at 50 Hz seems to enhance on-ice sprint performance in ice-hockey players. This suggests that coaches can incorporate such exercise into the preparation to specific sprint training to improve the quality of the training.

  19. Traumatic Hemarthrosis of the Knee Secondary to Hemophilia A in a Collegiate Soccer Player: A Case Report

    OpenAIRE

    Fiala, Kelly A; Hoffmann, Sandra J.; Ritenour, Donna M.

    2002-01-01

    Objective: To present the case of a collegiate soccer player who suffered from a traumatic knee hemarthrosis secondary to hemophilia A. This case presents an opportunity to discuss the participation status of athletes with hemophilia.

  20. A Comparison of Women's Collegiate and Girls' High School Volleyball Injury Data Collected Prospectively Over a 4-Year Period.

    Science.gov (United States)

    Reeser, Jonathan C; Gregory, Andrew; Berg, Richard L; Comstock, R Dawn

    2015-01-01

    There is a relative paucity of research examining the sport-specific injury epidemiology of high school and collegiate volleyball athletes. Moreover, differences in study methodology frequently limit our ability to compare and contrast injury data collected from selected populations. There are differences between the injury patterns characteristic of high school and collegiate female volleyball athletes. Retrospective clinical review. Level 3. We statistically analyzed injury incidence and outcome data collected over a 4-year interval (2005-2006 to 2008-2009) by 2 similar injury surveillance systems, the National Collegiate Athletic Association's Injury Surveillance System (NCAA ISS) and the High School Reporting Injuries Online (HS RIO). We compared diagnoses, anatomic distribution of injuries, mechanisms of injury, and time lost from training or competition between high school and collegiate volleyball athletes. The overall volleyball-related injury rate was significantly greater among collegiate athletes than among high school athletes during both competition (injury rate ratio, 2.9; 95% CI, 2.5-3.4) and practice (injury rate ratio, 3.5; 95% CI, 3.1-3.9). Collegiate athletes had a higher rate of ankle sprain, knee injury, and shoulder injury. Concussions represented a relatively high percentage of injuries in both populations (5.0% of total NCAA ISS injuries vs 4.8% of total HS RIO injuries, respectively). The data suggest that although similar, there were distinct differences between the injury patterns of the 2 populations. Compared with high school volleyball players, collegiate athletes have a higher rate of acute time loss injury as well as overuse time loss injury (particularly patellar tendinosis). Concussions represented a significant and worrisome component of the injury pattern for both study populations. The injury data suggest that important differences exist in the injury patterns of female high school compared with collegiate volleyball athletes

  1. Differences in hip range of motion among collegiate pitchers when compared to youth and professional baseball pitcher data

    Science.gov (United States)

    Cheatham, Scott W.; Shimamura, Kathryn Kumagai; Kolber, Morey J.

    2016-01-01

    The purpose of this study was to measure passive hip internal (IR) and external rotation (ER) range of motion (ROM) in collegiate baseball pitchers and compare to published youth and professional values. Measures were taken on the bilateral hips of 29 participants (mean age 20.0±1.4, range 18–22 years). Results identified no significant differences between the stance and stride hip in collegiate right handed pitchers for IR (p= 0.22, ES 0.23) and ER (p=.08, ES= 0.25). There was no significant difference in left handed pitchers for IR (p= 0.80, ES= 0.11) and ER (p= 0.56, ES= 0.15). When comparing youth to collegiate, IR increased in the stance (2º) and stride (5º) hip and an increase in the stance (5º) and stride (5º) hip were present for ER as well. From collegiate to professional, IR increased in the stance (4º) and stride (3º) hip whereas a decrease in the stance (9º) and stride (12º) hip was present for ER. The data suggests an increase in passive ROM from youth to collegiate and a decrease from collegiate to professional. Understanding passive hip ROM values among the different levels of pitchers may assist clinicians in developing time dependent interventions to prevent future injury and enhance performance. PMID:27713579

  2. Investigation of Positional Differences in Fitness of Male University Ice Hockey Players and the Frequency, Time Spent and Heart Rate of Movement Patterns during Competition

    Directory of Open Access Journals (Sweden)

    Joel Jackson

    2017-07-01

    Full Text Available Background:  Men’s university ice hockey has received little scientific attention over the past 30 years, a time in which the traits of the players and the demands of the game have evolved.  Objectives: This study compared the physiological characteristics of university ice hockey players and examined the frequency and duration of the different movement patterns and heart rate (HR responses during competition. Methods: Twenty male ice hockey players from the same team ( age ± SD = 22±2 years underwent a fitness evaluation and were filmed and HR monitored during regular season games. Results: Forwards and defense had similar fitness and only differed on % fatigue index and peak heart during on-ice sprinting (P<0.05. Defense stood, glided and skated backwards more than forwards and forwards skated at a moderate intensity and glided forward more than defense (P<0.05. All players spent the majority of game time gliding forward (60% of the time followed by skating forward at a moderate intensity (17% and standing with little movement (9%. Average HR during the game reached 96 and 92 % and peak HR was 100 and 96 % of maximum in forwards and defense, respectively. Conclusions: Male university hockey players present with a high level of physical fitness in a variety of categories with few differences between forwards and defense. Movement patterns during games suggest that players are performing low to moderate intensity on-ice activities the majority of the time. Paradoxically, HR continues to climb to near maximum during on ice shifts.

  3. Influencing Factors on the Cohesive Force of Ice Hockey Team%冰球项目团队凝聚力的影响因素

    Institute of Scientific and Technical Information of China (English)

    刘文; 胡江

    2011-01-01

    凝聚力对冰球运动队比赛成绩优劣,以及团队长期可持续发展前景起着重要作用。分析影响冰球项目团队凝聚力的相关因素,是积极构建冰球项目团队凝聚力地基础。冰球队的长远发展目标、比赛任务、领导方式、管理措施与激励机制等构成冰球运动队凝聚力影响的外部环境要素,冰球队内的人员沟通与交流方式、人际关系、运动员的能力表现与运动成绩、冰球队的规模与稳定性、运动员的需求等构成冰球运动队凝聚力影响的内部因素。%The cohesive force plays an important role for an ice hockey team's competitive performance and long-term sustainable development.The paper analyzes the relevant factors of influencing an ice hockey team's cohesive force,which is the base of effectively building the ice hockey team's cohesive force.The external environment factors influencing the ice hockey team's cohesive force consist of its long-term development goals,competitive mission,leadership style,management measure and incentive mechanism.The internal factors consist of the team's interpersonal communication and relationship,the players' competitive performance and results,the team size and stability,the players' requirements.

  4. Multinational outbreak of Salmonella Enteritidis infection during an international youth ice hockey competition in Riga, Latvia, preliminary report, March and April 2015.

    Science.gov (United States)

    Pesola, A K; Parn, T; Huusko, S; Perevosčikovs, J; Ollgren, J; Salmenlinna, S; Lienemann, T; Gossner, C; Danielsson, N; Rimhanen-Finne, R

    2015-05-21

    A multinational outbreak of salmonellosis linked to the Riga Cup 2015 junior ice-hockey competition was detected by the Finnish health authorities in mid-April and immediately notified at the European Union level. This prompted an international outbreak investigation supported by the European Centre for Disease Prevention and Control. As of 8 May 2015, seven countries have reported 214 confirmed and suspected cases, among which 122 from Finland. The search for the source of the outbreak is ongoing.

  5. Specific Characteristics of World Field Hockey and Its Enlightenments on Training of Chinese Field Hockey%世界曲棍球专项特征及其对我国曲棍球训练的启示

    Institute of Scientific and Technical Information of China (English)

    蔡旭旦; 陈小平

    2016-01-01

    曲棍球是一个跑量大(8 000 ~ 10 000 m)、以80%左右中低强度跑为主、以30—40次5~20 m高强度反复冲刺为核心强度的运动项目,比赛过程中的中低强度和高强度运动的比例约为1∶3 ~4.世界强队比赛的平均心率约为150次/min,心率区间位于84~ 95% HRmax次最大强度的运动时间占到比赛时间的一半以上,不同位置的运动员具有不同的比赛强度特点.世界优秀男子选手平均身高约180 cm、体重约79kg,最大摄氧量约为64 ml/kg·min;优秀女子选手平均身高约168 cm、平均体重约67 kg、最大摄氧量约为54 ml/kg·min.中长传球是攻入前场(25码区)的有效战术,弧内的短传配合以及射门后的跟进补射是取得进球的主要战术;短角球是曲棍球比赛中重要的得分手段,约占到总进球数的46.7%,拉射战术是短角球中主要的进攻手段.世界优秀男、女曲棍球运动员与我国选手的比较数据显示,我国女子运动员的跑量和短距离多次冲刺能力已达到世界优秀水平,而男子运动员的全场奔跑能力则存在明显差距.在技术上,我国运动员需要提升前场任意球进攻战术、弧内短传进攻以及射门技术的能力,在短角球的运用和成功率上我国运动员与世界优秀选手仍然存在较大的差距.

  6. Vývoj protokolu o pozorování dovedností pro sledge hokej - pilotní studie Development of a skills observation protocol for sledge ice hockey - pilot study

    Directory of Open Access Journals (Sweden)

    Yves Vanlandewijck

    2007-02-01

    Full Text Available V průběhu několika posledních let vzrostly možnosti jedinců s tělesným postiženým zapojit se do fyzických činností. Z tohoto důvodu je uznáván význam zvládnutí sportovních dovedností ještě před samotnou účastí v soutěžích. O stále oblíbenějším sledge hokeji bylo dosud provedeno málo výzkumů. Hlavní složkou výkonu je analýza dovedností. Vzhledem k její uznávané důležitosti a současnému nedostatku příslušných výzkumů na tomto poli jsme při této studii využili videozáznamů z paralympijského sledge hokejového turnaje z Turína v roce 2006, které nám poskytly možnost vytvořit protokol o pozorování s podrobnými kritérii toho, co utváří vyspělé profesionální sledge hokejové dovednosti. Proběhly konzultace s odborníky z tohoto odvětví a jejich zpětná vazba nám umožnila vytvořit tento nástroj. Po dokončení protokolu jsme provedli pilotní vyhodnocení, pro které byli hráči vybíráni na základě statistik z paralympijských her. Tito hráči byli poté pomocí našeho protokolu hodnoceni. Bylo prokázáno, že protokol dokáže úspěšně rozlišovat hráče vyšší a nižší úrovně. Over the past few years opportunities have been increasing for individuals with physical disabilities to become involved in physical activities; hence there is a recognition of the importance of mastering sport skills before participation. Currently there is little research that has been performed on the increasingly popular sport of sledge hockey. A major component of performance is skill analysis. Having recognised its importance and the current unavailability of relevant research in the area, this study used video recordings of the Torino 2006 Paralympic sledge ice hockey tournament to provide a setting in which to produce a skill observation protocol with detailed criteria of what constitutes a mature professional sledge ice hockey skill. Experts in the field were

  7. 达斡尔族传统曲棍球竞技文化探骊%Competitive culture of traditional Daur hockey

    Institute of Scientific and Technical Information of China (English)

    白志忠

    2014-01-01

    Of all the 56 peoples in China,there is only one nationality that maintains,inherits from generation to generation and develops overall hockey sport-that is Daur people. By exploring the origin of hockey culture,the interactive relationship between hockey culture and economy,politics,history,culture,education,religion is also straightened out,which is of practical significance for discovering its culture value and popularizing national culture.%在中华民族56个成员的大家庭中,有一个唯一保留和世代相传并普遍开展曲棍球运动的民族---达斡尔族。从曲棍球运动文化的起源入手,通过深入探寻达斡尔族传统曲棍球竞技文化源流,了解曲棍球竞技体育文化与经济、政治、历史、文化、教育、宗教等各领域的互动关系,对于发掘其文化价值,进一步弘扬民族文化具有一定的现实意义。

  8. Effects of Sex and Event Type on Head Impact in Collegiate Soccer

    Science.gov (United States)

    Reynolds, Bryson B.; Patrie, James; Henry, Erich J.; Goodkin, Howard P.; Broshek, Donna K.; Wintermark, Max; Druzgal, T. Jason

    2017-01-01

    Background: The effects of head impact in sports are of growing interest for clinicians, scientists, and athletes. Soccer is the most popular sport worldwide, but the burden of head impact in collegiate soccer is still unknown. Purpose: To quantify head impact associated with practicing and playing collegiate soccer using wearable accelerometers. Study Design: Descriptive epidemiological study. Methods: Mastoid patch accelerometers were used to quantify head impact in soccer, examining differences in head impact as a function of sex and event type (practice vs game). Seven female and 14 male collegiate soccer players wore mastoid patch accelerometers that measured head impacts during team events. Data were summarized for each athletic exposure, and statistical analyses evaluated the mean number of impacts, mean peak linear acceleration, mean peak rotational acceleration, and cumulative linear and rotational acceleration, each grouped by sex and event type. Results: There were no differences in the frequency or severity of head impacts between men’s and women’s soccer practices. For men’s soccer, games resulted in 285% more head impacts than practices, but there were no event-type differences in mean impact severity. Men’s soccer games resulted in more head impacts than practices across nearly all measured impact severities, which also resulted in men’s soccer games producing a greater cumulative impact burden. Conclusion: Similar to other sports, men’s soccer games have a greater impact burden when compared with practices, and this effect is driven by the quantity rather than severity of head impacts. In contrast, there were no differences in the quantity or severity of head impacts in men’s and women’s soccer practices. These data could prompt discussions of practical concern to collegiate soccer, such as understanding sex differences in head impact and whether games disproportionately contribute to an athlete’s head impact burden. PMID:28491885

  9. Relationship of Body Attitude and Personality Characteristics to Dietary Intake in Female Collegiate Athletes

    OpenAIRE

    Reiss, Tiffany Michelle

    2001-01-01

    Abstract Relationship of Body Attitude and Personality Characteristics to Dietary Intake in Female Collegiate Athletes Tiffany Michelle Reiss The purpose of this study was to compare the relationship of body attitude to both dietary intake and selected personality characteristics. The study focused on the relationship between dietary intake and both body attitude and personality characteristics as well as differences in body attitude and personality characteristics between female co...

  10. The Impact of a Food Elimination Diet on Collegiate Athletes' 300-meter Run Time and Concentration

    OpenAIRE

    Stockton, Susan; Breshears, Karen; Baker, David McA.

    2014-01-01

    Background: Optimal human function and performance through diet strategies are critical for everyone but especially for those involved in collegiate or professional athletics. Currently, individualized medicine (IM) is emerging as a more efficacious approach to health with emphasis on personalized diet strategies for the public and is common practice for elite athletes. One method for directing patient-specific foods in the diet, while concomitantly impacting physical performance, may be via ...

  11. Functional Movement Screen Factorial Validity and Measurement Invariance Across Sex Among Collegiate Student-Athletes.

    Science.gov (United States)

    Gnacinski, Stacy L; Cornell, David J; Meyer, Barbara B; Arvinen-Barrow, Monna; Earl-Boehm, Jennifer E

    2016-12-01

    Gnacinski, SL, Cornell, DJ, Meyer, BB, Arvinen-Barrow, M, and Earl-Boehm, JE. Functional Movement Screen factorial validity and measurement invariance across sex among collegiate student-athletes. J Strength Cond Res 30(12): 3388-3395, 2016-The Functional Movement Screen (FMS) is a screening tool used to evaluate functional movement quality and subsequent musculoskeletal injury risk. Despite recent research on the factorial validity of the FMS, no confirmatory factor analysis (CFA) has been conducted to examine measurement invariance across sex among student-athletes. The primary purpose of the current study was to confirm the factor structure of the FMS measurement model in a collegiate student-athlete population. It was hypothesized that the 1-factor model would demonstrate better model fit than the recently proposed 2-factor model. The secondary purpose of the study was to examine FMS measurement invariance across sex using the previously identified measurement model. It was hypothesized that FMS measurement invariance would hold across sex. Male (n = 88) and female (n = 88) collegiate student-athletes completed FMS screening during the off-season. Factorial validity was examined using CFA procedures, and model parameters were estimated using maximum likelihood estimation. Measurement invariance was examined by comparison of fit indices between hierarchically constrained models. Results revealed support for both the 1- and the 2-factor models; however, the 2-factor model failed to fit the data significantly better than the 1-factor model. Results also indicated that measurement invariance did not hold across sex, indicating that the FMS sum score construct is not measured equivalently in male and female populations. Collectively, results provide evidence for the use of the unidimensional FMS sum score among collegiate student-athletes, yet prompt caution because it relates to the evaluation of sex differences in sum or movement pattern scores.

  12. Examining the Leisure Constraints Affecting International Collegiate Students’ Participation in Intramural Sport Programs

    Directory of Open Access Journals (Sweden)

    Dongwook Cho

    2016-10-01

    Full Text Available A primary objective of United States’ higher education institutions is the production of well-balanced citizens. Aside from awarded degrees, other primary offerings include leisure opportunities, from campus recreation programs. Campus recreation through intramural sport programs offers students an opportunity to participate in sport and physical fitness activities on campus with and against other collegiate students. Recognizing the continuous increase in collegiate enrollment of international students, many of them are challenged by the various barriers they face in their collegiate experience in regard to education, social relationships, cultural and economic differences, and ethnic discrimination. The current study examines the relationship between leisure constraints (intrapersonal, interpersonal and structural and participation in intramural sport programs among 198 international students. Analyses indicate that structural constraints were the highest leisure constraint in intramural sport programs among international students. Leisure constraints in intramural sport programs were also observed by the participants based on past participation experience, sex and age. As professionals seek to increase awareness of recreation and intramural sport participation rates among international students, the current study provides insight into strategic options and marketing opportunities that can be enveloped to limit the leisure constraints that influence international students’ participation.

  13. Cortisol and stress responses during a game and practice in female collegiate soccer players.

    Science.gov (United States)

    Haneishi, Kanae; Fry, Andrew C; Moore, Christopher A; Schilling, Brian K; Li, Yuhua; Fry, Mary D

    2007-05-01

    The purpose of this study was to compare the cortisol responses from a regular season game and a typical practice session in female National Collegiate Athletic Association Division I collegiate soccer players. Eighteen players were assigned to 2 groups, 10 starters and 8 nonstarters, depending on their playing time. Salivary cortisol concentration, as well as competitive sport anxiety (somatic and cognitive anxiety, self-confidence), was monitored before and after 1 regular season game and 1 typical practice session. Although salivary cortisol levels increased postgame for both starters (+250%) and nonstarters (+140%), they increased to a greater extent for the starters. Practice salivary cortisol did not significantly change (p > 0.05). Cognitive and somatic anxiety was greater pre- and postgame when compared with the pre- and postpractice scores, respectively. These data clearly demonstrate the psychological and physiological differences between soccer competition and practice in collegiate women. It appears that both physiological and psychological variables combine to contribute to the large stress hormone response to an actual competitive game.

  14. Peer-created Motivational Climates: Variations in the Perceptions of Collegiate Intramural Sport Participants

    Directory of Open Access Journals (Sweden)

    Evan Webb

    2016-09-01

    Full Text Available Peer motivational climate (task-involved and ego-involved is often examined within youth sport contexts. This research examines this concept in a collegiate intramural sport setting and analyzes how it is affected by participants’ task- and ego-goal orientations in addition to several demographic and participation level variables. Empirical evidence supporting whether or not goal orientations can predict similar motivational climates, a component of achievement goal theory, was sought out in a collegiate recreational sport setting. Immediately following their participation in an intramural sport, students at a Canadian university (N = 315 completed a questionnaire that measured achievement goal orientations and peer motivational climates. MANOVAs revealed significant differences between three levels (high, medium, and low of task-orientation on task-involved climate and ego-orientation on ego-involved climate in addition to both their subscales. Gender was the only demographic variable that showed a significant effect when ego-involvement was the dependent variable. These results support the relationship between achievement goal orientations and similar motivational climates in collegiate intramural sports but do point towards a potential need for a more adult oriented measurement of peer motivational climate.

  15. The Sprinkler Irrigation and Rainwater Utilization Design of Jiangsu Wujin Hockey New Training Base%江苏武进曲棍球新训练基地喷灌及雨水利用设计

    Institute of Scientific and Technical Information of China (English)

    段松林

    2014-01-01

    In this paper, the author introduces the Wujin ho-ckey field water supply and drainage and rainwater utilization from five aspects of the sprinkler irrigation system and drainage system design, the rain, such as recycling, and treatment and reuse in design. The project ful y reflects the goal of saving water and rain water recycling, reduces the stress of city lack of water, and reduces the operation cost of the pitch.%本文从场地喷灌系统及排水系统设计、雨水的回收、处理及再利用等五方面,详细阐述了武进曲棍球场场地给排水和雨水利用设计。该项目充分体现了节水理念与雨水回收利用的目标,缓解了城市水缺乏的压力,降低了球场的运营成本。

  16. Collegiate Grading Practices and the Gender Pay Gap

    Directory of Open Access Journals (Sweden)

    Alicia C. Dowd

    2000-01-01

    Full Text Available Extending research findings by R. Sabot and J. Wakeman-Linn (1991, this article presents a theoretical analysis showing that relatively low grading quantitative fields and high grading verbal fields create a disincentive for college women to invest in quantitative study. Pressures on grading practices are modeled using higher education production functions.

  17. 冰球守门员心理训练模式的构建%Construction of Psychological Training Mode of Ice Hockey Goalkeeper

    Institute of Scientific and Technical Information of China (English)

    李民

    2013-01-01

    The goalkeeper is the core in ice hockey competition .Psychological changes of the goalkeeper in competition often determines the performance of the whole ice hockey team on the rink and has a decisive in-fluence on the results.Improving psychological quality is the precondition which guarantees goalkeepers ’ normal or extraordinary performance of sports skills in competition , is also the necessary way to perfect the ice hockey training system and strength athletes ’ performance.This paper discusses the important value of psychological training on ice hockey goalkeepers from the following aspects:improving ice hockey goalkeep-ers’ psychological pressure, keeping a high degree attention, enhancing the strain and response speed and controlling competition motions.It should pay attention to individual differences and the theory cognition lev-el, follow the step-by-step training concept and be targeted to effect the psychology on the goalkeeper in the construction of psychological training mode of ice hockey goalkeeper .And it proposes to start from devel-oping coaches to master basic psychological knowledge and methods , holding on long-term and short-term psychological training combined, with various psychological training methods to construct psychological train-ing mode of ice hockey goalkeeper .%  守门员在冰球运动中具有核心的作用,守门员比赛中心理变化情况往往决定了整支冰球队在场上的表现,对比赛成绩具有决定性的影响。提高守门员的心理素质是保证守门员在比赛中能正常或超常发挥运动技能的前提条件,也是完善冰球运动训练体系,增强运动员临场表现的必要途径。从改善守门员心理承压能力,保持高度注意力,提高应变反应速度,控制比赛情绪等几个方面论述了心理训练对冰球守门员的重要价值。提出冰球守门员心理训练模式构建中应注意个体差异与理论认知的水平,遵循循序

  18. Relationships between core endurance, hip strength, and balance in collegiate female athletes.

    Science.gov (United States)

    Ambegaonkar, Jatin P; Mettinger, Lindsey M; Caswell, Shane V; Burtt, Andrea; Cortes, Nelson

    2014-10-01

    Lower extremity injuries such as Anterior Cruciate Ligament (ACL) tears remain a concern in collegiate female athletes. Core endurance and hip strength reportedly influence ACL and lower extremity injury risk. Good neuromuscular control, as measured by the Star Excursion Balance Test (SEBT) test is associated with decreased lower extremity injuries. The exact relationships between core endurance, hip strength, and balance (SEBT scores), and how they impact one another in the female collegiate athlete remain unclear. Thus, the purpose of this study was to investigate relationships between core endurance, hip strength, and balance in collegiate female athletes. Forty collegiate female athletes (19.6±1.1yrs, 163.1±7.8cm, 61.3±6.5kgs) performed the SEBT in anterior, posterolateral, and posteromedial directions bilaterally (% leg length), McGill's anterior, posterior, and left and right plank core endurance tests (seconds), and hip abductor, flexor, extensor, and external rotator isometric strength tests bilaterally (N) using handheld dynamometry. Pearson's product moment correlations examined relationships between core endurance, hip strength, and balance. A linear regression analysis examined whether core endurance and hip strength influenced balance (p≤0.05). Anterior SEBT scores were fairly positively correlated with hip flexor and extensor strength. Posterolateral SEBT scores were fairly positively correlated with hip abductor, extensor, and flexor strength (p=0.02-to-0.004; r=0.26-to-0.45). Fair positive correlations existed between posterior core endurance and hip extensor strength bilaterally (right: p=0.02, r=0.37; left: p=0.003, r=0.47). Core endurance and SEBT scores were not correlated (p>0.05). Core endurance and hip strength did not influence SEBT scores (p=0.47). Overall, hip strength, but not core endurance was related to SEBT scores in collegiate female athletes. Females with greater hip flexor, extensor, and abductor strength also had better

  19. A simple video-based timing system for on-ice team testing in ice hockey: a technical report.

    Science.gov (United States)

    Larson, David P; Noonan, Benjamin C

    2014-09-01

    The purpose of this study was to describe and evaluate a newly developed on-ice timing system for team evaluation in the sport of ice hockey. We hypothesized that this new, simple, inexpensive, timing system would prove to be highly accurate and reliable. Six adult subjects (age 30.4 ± 6.2 years) performed on ice tests of acceleration and conditioning. The performance times of the subjects were recorded using a handheld stopwatch, photocell, and high-speed (240 frames per second) video. These results were then compared to allow for accuracy calculations of the stopwatch and video as compared with filtered photocell timing that was used as the "gold standard." Accuracy was evaluated using maximal differences, typical error/coefficient of variation (CV), and intraclass correlation coefficients (ICCs) between the timing methods. The reliability of the video method was evaluated using the same variables in a test-retest analysis both within and between evaluators. The video timing method proved to be both highly accurate (ICC: 0.96-0.99 and CV: 0.1-0.6% as compared with the photocell method) and reliable (ICC and CV within and between evaluators: 0.99 and 0.08%, respectively). This video-based timing method provides a very rapid means of collecting a high volume of very accurate and reliable on-ice measures of skating speed and conditioning, and can easily be adapted to other testing surfaces and parameters.

  20. Ice hockey shoulder pad design and the effect on head response during shoulder-to-head impacts.

    Science.gov (United States)

    Richards, Darrin; Ivarsson, B Johan; Scher, Irving; Hoover, Ryan; Rodowicz, Kathleen; Cripton, Peter

    2016-11-01

    Ice hockey body checks involving direct shoulder-to-head contact frequently result in head injury. In the current study, we examined the effect of shoulder pad style on the likelihood of head injury from a shoulder-to-head check. Shoulder-to-head body checks were simulated by swinging a modified Hybrid-III anthropomorphic test device (ATD) with and without shoulder pads into a stationary Hybrid-III ATD at 21 km/h. Tests were conducted with three different styles of shoulder pads (traditional, integrated and tethered) and without shoulder pads for the purpose of control. Head response kinematics for the stationary ATD were measured. Compared to the case of no shoulder pads, the three different pad styles significantly (p shoulder pads reduced linear head accelerations by an additional 18-21% beyond the other two styles of shoulder pads. The data presented here suggest that shoulder pads can be designed to help protect the head of the struck player in a shoulder-to-head check.

  1. 第29届奥运会女子曲棍球比赛短角球进攻战术特点研究%The Research of Women's Hockey Penalty Corner Goal Tactics in 29th Olympic Games

    Institute of Scientific and Technical Information of China (English)

    闫琪; 贾伟; 孙文琦; 王忠军

    2011-01-01

    对第29届奥运会女子曲棍球全部38场比赛进行了统计分析,寻找当今世界女子曲棍球比赛中短角球进攻战术的特点,发现当今世界最高水平女子曲棍球比赛中,强攻战术成为各支强队的短角球主要进攻和得分手段;各支强队在短角球强攻战术中主要应用拉射战术,同时拉射战术也是强攻战术中主要得分手段;而中国队短角球拉射战术在发球到停球时间和停球到拉射出手时间上明显长于荷兰队,这可能是导致中国队短角球拉射战术成功率过低的重要因素之一。%In this study,a statistical analysis of penalty corner goal tactics of all 38 women's hockey matches in the 29th Olympic Games,finding women's hockey penalty corner goal features of attack tactics in today's world,analyzes the development trend of attack tactics in order to provide technology support in enhancing Chinese women's field hockey attack tactics in the penalty corner goal.This research shows that the penalty corner goal of strong teams are the major attack and scoring means;the main attack tactic is drag flick used by strong teams,which is main scoring mean in the attack tactic;the Chinese's time between push-out to trap and time between the trap to the drag flick were longer than Dutch's,which may be one of important factors leading the Chinese team low successful rate of drag flick in penalty corner goal.

  2. A Crusade against Cronyism or a Breach of Collegiality?

    Science.gov (United States)

    Leatherman, Courtney

    2000-01-01

    Details the case of a third-year assistant history professor at Yale University (Connecticut) who was denied reappointment. Raises issues such as the hiring by a department of its own Ph.D.'s, cronyism within departments and fields, denial of reappointment as punishment for criticizing powerful individuals, and the undue influence of a few…

  3. Prevention of Sports Injury of Teenage Ice Hockey Players%青少年冰球运动员运动性损伤的预防

    Institute of Scientific and Technical Information of China (English)

    付振国

    2014-01-01

    Because of speed,confrontation and conflict,ice hockey becomes one of the most competitive,ornamental and confrontational events in modern athletic sports,its risk is also the event that induced sports injury,in training,actively preventing the sports injury of teenage ice hockey players has an important role in improving the popularization of Chinese ice hockey. Emotion and self-control ability,cognition of rules and standardization of technique,training arrangement and scientific training load,facilities and equipments are the main reasons of inducing sports injury. Sports injury of ice hockey players mainly occurs in the limbs,especially the lower limb injury,other parts of the minority,most injuries are the closed soft tissue injury,joint and ligament sprain. Put forward to strengthen ideological education,reasonable arrange training load and training process,strengthen the training of vulnerable parts,strengthen the healthy guidance,enhance protection and self-protection awareness,improve the quality of facilities and equipments and other measures,actively prevent to occur the sports injury of teenage ice hockey players,give physical exercise guidance,improve the sports life of ice hockey players.%冰球运动以速度、对抗和冲撞成为现代竞技体育运动中最具竞技性、观赏性和对抗性的比赛项目之一,其危险性也是诱发运动损伤较高的比赛项目,训练中积极预防少年冰球运动员的运动损伤发对提高我国冰球运动的普及率具有重要的作用。情绪状态与自我控制能力,对规则的认知与技术的规范性,训练安排与训练负荷的科学性,场地器材与护具等因素是诱发运动损伤的主要原因;冰球运动员的运动损伤主要发生在四肢,尤其以下肢损伤为多,其他部位占少数,损伤最多的是闭合性软组织损伤、关节和韧带扭伤。提出采取加强思想教育,合理、科学地安排训练负荷与训练过程,加

  4. Restricted Factors and Countermeasures for the Development of Chinese Ice Hockey Players%我国冰球运动发展的制约因素及对策

    Institute of Scientific and Technical Information of China (English)

    宁文静; 王淑华

    2013-01-01

    冰球运动是一项冬季体育运动中唯一的球类集体项目,其运动水平可以代表一个国家冬季运动的总体水平。对我国冰球运动现状进行分析,找出目前我国冰球运动存在项目普及萎缩,后备人才短缺;培养体制不完善,场地、器材匮乏;教练员教练水平低,创新意识差;科技投入少,科学化训练水平低等制约因素。提出加大冰球运动后备人才培养力度;制定、完善冰球运动员培养、输送体制;提升冰球运动教练员的整体素质;强化冰球运动科学化训练体系等解决对策,为让冰球运动重新在中国的大地上蓬勃开展起来,打造中国冰球崭新的未来提供参考。%Ice hockey is the only team ball game of winter sports , its sports level can represent the winter sports level of a country .By analyzing the status of Chinese ice hockey , this paper has found out that there are many restricted factors of Chinese ice hockey , such as project popularization declining , shortages of re-served talents;training system is not perfect , lack of venues and equipments;low level of coaches , poor in-novation consciousness;low technology input , low level of scientific training .The paper puts forward that we should strengthen the reserved talents training of ice hockey; outline and perfect the training conveying system of ice hockey players;improve the overall quality of coaches;strengthen scientific training system of ice hockey and other solutions , in order to give a reference for having a great boom in ice hockey in China and creating a new future of Chinese ice hockey .

  5. Greater circadian disadvantage during evening games for the National Basketball Association (NBA), National Hockey League (NHL) and National Football League (NFL) teams travelling westward.

    Science.gov (United States)

    Roy, Jonathan; Forest, Geneviève

    2017-06-01

    We investigated the effects of a circadian disadvantage (i.e. playing in a different time zone) on the winning percentages in three major sport leagues in North America: the National Basketball Association, the National Hockey League and the National Football League. We reviewed 5 years of regular season games in the National Basketball Association, National Hockey League and National Football League, and noted the winning percentage of the visiting team depending on the direction of travel (west, east, and same time zone) and game time (day and evening games). T-tests and analysis of variance were performed to evaluate the effects of the circadian disadvantage, its direction, the number of time zones travelled, and the game time on winning percentages in each major league. The results showed an association between the winning percentages and the number of time zones traveled for the away evening games, with a clear disadvantage for the teams travelling westward. There was a significant difference in the teams' winning percentages depending on the travelling direction in the National Basketball Association (F2,5908  = 16.12, P < 0.0001) and the National Hockey League (F2,5639  = 4.48, P = 0.011), and a trend was found in the National Football League (F2,1279  = 2.86, P = 0.058). The effect of the circadian disadvantage transcends the type of sport and needs to be addressed for greater equity among the western and eastern teams in professional sports. These results also highlight the importance of circadian rhythms in sport performance and athletic competitions. © 2017 European Sleep Research Society.

  6. CATECHOLAMINES AND β2-ADRENOCEPTOR GENE EXPRESSION BEFORE AND AFTER MAXIMAL INCREMENTAL CYCLE TEST IN YOUNG ICE HOCKEY PLAYERS: RELATION TO WORK PERFORMED

    Directory of Open Access Journals (Sweden)

    Urszula Mazurek

    2013-04-01

    Full Text Available The aim of this study was to assess the plasma adrenaline and noradrenaline concentrations as well as whole blood β2-adrenoceptor gene (ADRB2 expression in young ice hockey players before and immediately after exercise in relation to performed work. Nineteen Youth National Team ice hockey players were subjected to the maximal incremental cycloergometer exercise. The test was done in the pre-competitive phase of training. Among many parameters the plasma adrenaline and noradrenaline concentrations and ADRB2 gene expression in peripheral blood mononuclear cells (PBMC were determined before and after exercise. The average performed work was 3261.3 ± 558.3 J · kg-1 and maximal oxygen consumption (VO2max for all players was 53.85 ± 3.91 mL · kg-1 min-1. The geometric mean of the ADRB2 gene expression was statistically significantly different before and after exercise (P ≤ 0.05, while adrenaline and noradrenaline levels in plasma significantly increased after exercise. In the analysed group of athletes we found that initial level of plasma noradrenaline correlated with the performed work (r = - 0.55, P < 0.014 and normalized ADRB2 expression before the exercise correlated with the work done by them (r = 0.48, P<0.039. However, no statistically significant correlations were found between the plasma adrenaline or noradrenaline concentrations and ADRB2 gene expression in peripheral blood of the players. The performed work in the maximal incremental exercise test of regularly training young ice hockey players depends on the initial levels of noradrenaline in plasma and ADRB2 mRNA in PBMC.

  7. Injuries in a Japanese Division I Collegiate American Football Team: A 3-Season Prospective Study

    Science.gov (United States)

    Iguchi, Junta; Yamada, Yosuke; Kimura, Misaka; Fujisawa, Yoshihiko; Hojo, Tatsuya; Kuzuhara, Kenji; Ichihashi, Noriaki

    2013-01-01

    Context: Previous research on American football injuries in Japan has focused on incidence proportion in terms of the number of injuries divided by the number of players. This is the first study to examine injury rates over several seasons. Objective: To conduct a prospective study of injuries in a Japanese Division I collegiate American football team over the 2007 through 2009 seasons. Design: Cohort study. Setting: Collegiate football team at Doshisha University, Kyoto, Japan. Patients or Other Participants: All 289 athletes who played on the collegiate Division I football team during the 2007 through 2009 seasons. Main Outcome Measure(s): A certified athletic trainer kept a daily record of all practice and game injuries. Injury rates were calculated according to season, injury type, body part, severity, and mechanism. Injuries were also analyzed according to position of player, school year, and playing experience. Results: The game injury rate (GIR; 32.7 injuries/1000 athlete-exposures) was higher than the practice injury rate (PIR; 10.9 injuries/1000 athlete-exposures) over the 3 seasons (P football injury rates (5.8–7.0 injuries/1000 athlete-exposures). Ankle and foot injuries occurred more frequently during games, whereas thigh and gluteal injuries occurred more frequently during practices. Conclusions: Our data show differences between games and practices in terms of injury rates, body parts injured, and positions of players injured. The high PIR in Japan may be due to the increased contact during practices and length of practices compared with the United States. Further research involving multiple teams is recommended to validate the trends noted in this study. The expanded data set could assist in the development of safety regulations and preventive interventions for Japanese football. PMID:23944380

  8. Epidemiology of high school and collegiate football injuries in the United States, 2005-2006.

    Science.gov (United States)

    Shankar, Prasad R; Fields, Sarah K; Collins, Christy L; Dick, Randall W; Comstock, R Dawn

    2007-08-01

    Football, one of the most popular sports among male high school students in the United States, is a leading cause of sports-related injuries, with an injury rate almost twice that of basketball, the second most popular sport. Injury patterns will vary between competition and practice exposures and between levels of play (ie, high school vs. National Collegiate Athletic Association [NCAA]). Descriptive epidemiology study. Football-related injury data were collected over the 2005-2006 school year from 100 nationally representative high schools via High School RIO (Reporting Information Online) and from 55 Division I, II, and III colleges via the NCAA Injury Surveillance System. Nationally, an estimated 517,726 high school football-related injuries (1881 unweighted injuries) occurred during the 2005-2006 season. The rate of injury per 1000 athlete-exposures was greater during high school competitions (12.04) than during practices (2.56). The rate of injury per 1000 athlete-exposures was also greater during collegiate competitions (40.23) than during practices (5.77). While the overall rate of injury per 1000 athlete-exposures was greater in the NCAA (8.61) than in high school (4.36), high school football players sustained a greater proportion of fractures and concussions. Running plays were the leading cause of injury, with running backs and linebackers being the positions most commonly injured. Patterns of football injuries vary, especially by type of exposure and level of play. Future studies should continue to compare differences in injury patterns in high school and collegiate football, with particular emphasis placed on high-risk plays (running plays) and positions (running backs and linebackers).

  9. Prevalence and variance of shoulder injuries in elite collegiate football players.

    Science.gov (United States)

    Kaplan, Lee D; Flanigan, David C; Norwig, John; Jost, Patrick; Bradley, James

    2005-08-01

    Shoulder injuries are the fourth most common musculoskeletal injury encountered in American football players. There is little information in the literature on the role of playing position in the type of shoulder injuries seen. There is a high prevalence of shoulder injuries in elite collegiate American football players, with type of injury varying by playing position. Cohort study (prevalence); Level of evidence, 3. A total of 336 elite collegiate American football players were invited to the National Football League Combine for physical testing and medical evaluation. Current and historical data were evaluated for the purpose of this study, and all players underwent radiographic examinations, including plain radiographs and/or magnetic resonance imaging when necessary. All shoulder pathological conditions and shoulder surgical procedures were recorded. Players were categorized by position for the analysis of position-specific trends. Of the players, 50% had a history of shoulder injuries, with a total of 226 shoulder injuries (1.3 injuries per player injured); 56 players (34%) had a total of 73 surgeries. The most common injuries were acromioclavicular separation (41%), anterior instability (20%), rotator cuff injury (12%), clavicle fracture (4%), and posterior instability (4%). The most common surgeries performed were anterior instability reconstruction (48%), Mumford/Weaver-Dunn surgery (15%), posterior instability surgery (10%), and rotator cuff surgery (10%). Shoulder injuries were more common in quarterbacks and defensive backs. Surgery was more common in linebackers or linemen. A history of anterior instability was more common in defensive players, with surgery required 76% of the time. Linemen had more rotator cuff injuries and posterior instability than players in other positions. Shoulder injuries are common injuries in elite collegiate football players, with one-third undergoing surgical procedures. There are definitive trends in the types of injuries

  10. Injuries in a Japanese Division I collegiate american football team: a 3-season prospective study.

    Science.gov (United States)

    Iguchi, Junta; Yamada, Yosuke; Kimura, Misaka; Fujisawa, Yoshihiko; Hojo, Tatsuya; Kuzuhara, Kenji; Ichihashi, Noriaki

    2013-01-01

    Previous research on American football injuries in Japan has focused on incidence proportion in terms of the number of injuries divided by the number of players. This is the first study to examine injury rates over several seasons. To conduct a prospective study of injuries in a Japanese Division I collegiate American football team over the 2007 through 2009 seasons. Cohort study. Collegiate football team at Doshisha University, Kyoto, Japan. All 289 athletes who played on the collegiate Division I football team during the 2007 through 2009 seasons. A certified athletic trainer kept a daily record of all practice and game injuries. Injury rates were calculated according to season, injury type, body part, severity, and mechanism. Injuries were also analyzed according to position of player, school year, and playing experience. The game injury rate (GIR; 32.7 injuries/1000 athlete-exposures) was higher than the practice injury rate (PIR; 10.9 injuries/1000 athlete-exposures) over the 3 seasons (P football injury rates (5.8-7.0 injuries/1000 athlete-exposures). Ankle and foot injuries occurred more frequently during games, whereas thigh and gluteal injuries occurred more frequently during practices. Our data show differences between games and practices in terms of injury rates, body parts injured, and positions of players injured. The high PIR in Japan may be due to the increased contact during practices and length of practices compared with the United States. Further research involving multiple teams is recommended to validate the trends noted in this study. The expanded data set could assist in the development of safety regulations and preventive interventions for Japanese football.

  11. The Role of Personality in Job Satisfaction Among Collegiate Athletic Trainers

    Science.gov (United States)

    Eason, Christianne M.; Mazerolle, Stephanie M.; Monsma, Eva V.; Mensch, James M.

    2015-01-01

    Context  The degree to which an individual likes his or her job is known as job satisfaction. A person with higher job satisfaction is less likely to depart from a profession than a person with lower job satisfaction. Researchers studying job satisfaction among other allied health professionals suggest a personality component could explain why the reasons for departure can be so individual. Setting  Collegiate institutions. Objective  To determine the relationship between job satisfaction and personality among collegiate athletic trainers (ATs). Patients or Other Participants  A total of 202 ATs (68 [33.7%] men and 134 [66.3%] women), were recruited using the National Athletic Trainers' Association e-mail database. We excluded any AT from this study who worked outside of the collegiate setting. The response rate was 20.2%. Intervention(s)  Data were collected using a Web-based survey instrument consisting of 3 sections: (1) demographics, (2) job satisfaction survey, and (3) Big Five Personality Inventory. Main Outcome Measure(s)  Independent t tests were run to determine sex differences, and correlations were run to evaluate relationships between demographics and job satisfaction and between job satisfaction and personality. Results  Women reported higher levels of neuroticism than men. Extroversion and conscientiousness showed a weak positive relationship with job satisfaction. A moderate positive relationship was found between agreeableness and job satisfaction. A moderate negative relationship was noted between neuroticism and job satisfaction. Conclusions  Based on our findings, head ATs or other organizational leaders may consider using personality assessments during interview processes, or athletic training program directors may be able to better guide students interested in athletic training based on knowledge of their personalities. PMID:26599958

  12. Navigating Motherhood and the Role of the Head Athletic Trainer in the Collegiate Setting

    Science.gov (United States)

    Mazerolle, Stephanie M.; Eason, Christianne M.

    2016-01-01

    Context:  Motherhood has been identified as a barrier to the head athletic trainer (AT) position. Role models have been cited as a possible facilitator for increasing the number of women who pursue and maintain this role in the collegiate setting. Objective:  To examine the experiences of female ATs balancing motherhood and head AT positions in the National Collegiate Athletic Association Division II and III and National Association of Intercollegiate Athletics settings. Design:  Qualitative study. Setting:  National Collegiate Athletic Association Divisions II and III and National Association of Intercollegiate Athletics. Patients or Other Participants:  A total of 22 female head ATs (average age = 40 ± 8 years) who were married with children completed our study. Our participants had been certified for 15.5 ± 7.5 years and in their current positions as head ATs for 9 ± 8 years. Data Collection and Analysis:  We conducted online interviews with all participants. Participants journaled their reflections on a series of open-ended questions pertaining to their experiences as head ATs. Data were analyzed following a general inductive approach. Credibility was confirmed through peer review and researcher triangulation. Results:  We identified 3 major contributors to work-life conflict. Two speak to organizational influences on conflict: work demands and time of year. The role of motherhood, which was more of a personal contributor, also precipitated conflict for our ATs. Four themes emerged as work-life balance facilitators: planning, attitude and perspective, support networks, and workplace integration. Support was defined at both the personal and professional levels. Conclusions:  In terms of the organization, our participants juggled long work hours, travel, and administrative tasks. Individually and socioculturally, they overcame their guilt and their need to be present and an active part of the parenting process. These mothers demonstrated the

  13. Experiences with workplace bullying among athletic trainers in the collegiate setting.

    Science.gov (United States)

    Weuve, Celest; Pitney, William A; Martin, Malissa; Mazerolle, Stephanie M

    2014-01-01

    Workplace bullying (WPB) is a series of persistent negative interactions that affect a clinician's ability to perform his or her role. Although WPB has been studied in other health professions, to date, no information exists pertaining to WPB in athletic training. To determine the prevalence of WPB in the collegiate setting and examine factors that influence its occurrence. Cross-sectional study. Collegiate setting. There were 723 (329 female, 394 male) athletic trainers (ATs) aged 37.5 ± 10.4 years. We collected data via the validated and reliable online Athletic Training Environment Survey. Descriptive statistics were obtained to determine a bullying score for each AT and examine the prevalence of WPB. Chi-square analyses were performed to examine the differences between (1) sex, (2) academic degree level, (3) employment title, and (4) National Athletic Trainers' Association district. A total of 106 participants (14.7%) had a score of 2 or higher, indicating they were bullied in the athletic training setting. Of those bullied, 47 (44.3%) were women and 59 (55.7%) were men. There was no difference between women and men with respect to having experienced bullying (χ(2)1 = 0.068, P = .794). Moreover, no difference existed in the prevalence of bullying among ATs holding various degrees (χ(2)3 = 6.73, P = .081) or among ATs holding various titles within an organization (χ(2)5 = 3.55, P = .616). More (χ(2)1 = 23.77, P = Bullying was experienced by both male and female ATs in the collegiate setting, and a higher number of bullies were male. More research is necessary to explore WPB in other work settings.

  14. Cross-Validation of Age-Predicted Maximal Heart Rate Equations Among Female Collegiate Athletes.

    Science.gov (United States)

    Esco, Michael R; Chamberlain, Nik; Flatt, Andrew A; Snarr, Ronald L; Bishop, Phillip A; Williford, Henry N

    2015-11-01

    The purpose of this study was to determine the accuracy of 3 general and 2 female-specific age-predicted maximal heart rate (HRmax) prediction equations in female collegiate athletes. Thirty female collegiate athletes (age = 21.5 ± 1.9 years, height = 164.7 ± 6.6 cm, weight = 61.3 ± 8.2 kg) participated. HRmax was determined with a maximal graded exercise test and predicted with 3 general equations (Fox et al., Astrand, and Tanaka et al.) and 2 female-specific equations (Fairbarn et al. and Gulati et al.). There was no significant difference between observed HRmax (185.9 ± 5.0 b·min) and the Fairbarn (187.5 ± 1.2 b·min) and Gulati (187.1 ± 1.7 b·min) equations (p = 0.11 and 0.23, respectively). The Fox (198.5 ± 1.9 b·min), Astrand (198.1 ± 1.6 b·min), and Tanaka (193.0 ± 1.4 b·min) equations provided significantly higher estimates compared with observed HRmax (p < 0.001 for each). The standard error of the estimate was similar for all the prediction equations (between 5.0 and 5.4 b·min), but the total error was smallest for Fairbarn and Gulati (5.3 b·min for each) and largest for Fox and Astrand (13.9 and 13.3 b·min, respectively). The 95% limits of agreement of the mean error were similar for all of the prediction equations, with values varying between 9.9 and 10.5 b·min. Because of the wide limits of agreement displayed by each equation, the use of age-predicted methods for estimating HRmax in collegiate female athletes should be performed only with caution.

  15. Incidence of Concussion During Practice and Games in Youth, High School, and Collegiate American Football Players.

    Science.gov (United States)

    Dompier, Thomas P; Kerr, Zachary Y; Marshall, Stephen W; Hainline, Brian; Snook, Erin M; Hayden, Ross; Simon, Janet E

    2015-07-01

    A report by the Institute of Medicine called for comprehensive nationwide concussion incidence data across the spectrum of athletes aged 5 to 23 years. To describe the incidence of concussion in athletes participating in youth, high school, and collegiate American football. Data were collected by athletic trainers at youth, high school, and collegiate football practices and games to create multiple prospective observational cohorts during the 2012 and 2013 football seasons. Data were collected from July 1, 2012, through January 31, 2013, for the 2012 season and from July 1, 2013, through January 31, 2014, for the 2013 season. The Youth Football Surveillance System included 118 youth football teams, providing 4092 athlete-seasons. The National Athletic Treatment, Injury and Outcomes Network program included 96 secondary school football programs, providing 11 957 athlete-seasons. The National Collegiate Athletic Association Injury Surveillance Program included 24 member institutions, providing 4305 athlete-seasons. All injuries regardless of severity, including concussions, and athlete exposure information were documented by athletic trainers during practices and games. Injury rates, injury rate ratios, risks, risk ratios, and 95% CIs were calculated. Concussions comprised 9.6%, 4.0%, and 8.0% of all injuries reported in the Youth Football Surveillance System; National Athletic Treatment, Injury and Outcomes Network; and National Collegiate Athletic Association Injury Surveillance Program, respectively. The game concussion rate was higher than the practice concussion rate across all 3 competitive levels. The game concussion rate for college athletes (3.74 per 1000 athlete exposures) was higher than those for high school athletes (injury rate ratio, 1.86; 95% CI, 1.50-2.31) and youth athletes (injury rate ratio, 1.57; 95% CI, 1.17-2.10). The practice concussion rate in college (0.53 per 1000 athlete exposures) was lower than that in high school (injury rate ratio, 0

  16. Updating the Rey Dot Counting Test for Use in Collegiate Baseline Concussion Testing.

    Science.gov (United States)

    Salazar, Carlos Luis; Mulligan, Kevin; Webbe, Frank

    2017-01-01

    Athletes occasionally attempt to lower their baseline scores to mask the effects of a concussion during post-trauma assessment, a phenomenon known as sandbagging. In order to help prevent this from occurring, the Rey Dot Counting Test (DCT) was examined as a potential measure to be added to a Division II university screening battery. Investigators utilized samples of athletes at baseline and non-athlete students instructed to provide honest effort or suppressed effort, either naïvely or coached. The results support the use of the DCT as a valid measure of suboptimal performance when using modified norms established from collegiate populations.

  17. Prevention of emotional states among students from collegiate basketball and soccer teams

    Directory of Open Access Journals (Sweden)

    Malinauskas R.

    2010-10-01

    Full Text Available This article deals with the questions of the prevention of emotional states among students from collegiate basketball and football teams. The experiment involved 42 athletes aged 19-25. Two methods were used in the inquiry: Antonovsky's Sense of Coherence Scale and Stress-coping Scale (Kiseliov's Thermometer. Results have shown that higher levels of sense of coherence and stress-coping were found in student-athletes after psycho-prophylactic program against these indicators before the psycho-prophylactic program.

  18. A systematic video analysis of National Hockey League (NHL) concussions, part II: how concussions occur in the NHL.

    Science.gov (United States)

    Hutchison, Michael G; Comper, Paul; Meeuwisse, Willem H; Echemendia, Ruben J

    2015-04-01

    Concussions in sports are a growing cause of concern, as these injuries can have debilitating short-term effects and little is known about the potential long-term consequences. This work aims to describe how concussions occur in the National Hockey League. Case series of medically diagnosed concussions for regular season games over a 3.5-year period during the 2006-2010 seasons. Digital video records were coded and analysed using a standardised protocol. 88% (n=174/197) of concussions involved player-to-opponent contact. 16 diagnosed concussions were a result of fighting. Of the 158 concussions that involved player-to-opponent body contact, the most common mechanisms were direct contact to the head initiated by the shoulder 42% of the time (n=66/158), by the elbow 15% (n=24/158) and by gloves in 5% of cases (n=8/158). When the results of anatomical location are combined with initial contact, almost half of these events (n=74/158) were classified as direct contact to the lateral aspect of the head. The predominant mechanism of concussion was consistently characterised by player-to-opponent contact, typically directed to the head by the shoulder, elbow or gloves. Also, several important characteristics were apparent: (1) contact was often to the lateral aspect of the head; (2) the player who suffered a concussion was often not in possession of the puck and (3) no penalty was called on the play. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.

  19. 世界女子曲棍球项目制胜手段研究--基于2014年世界杯女子曲棍球赛%The Study of the Means of Winning the Women's Hockey Game Based on the Review Perspectives of Women's Hockey Game in the World Cup

    Institute of Scientific and Technical Information of China (English)

    秦丽梅

    2016-01-01

    Utilising the literature data, expert interviews, video analysis and mathematical statistics, based on the analysis of the development and tendency of women 's hockey, it is found that team spirit, tactical discipline, fast and effective attack, strong mind and sophisticated playing techniques are the basic means for winning the Women's Hockey Game. The use of statistics analy-sis for the 2014 Women's Hockey Game in the World Cup proves the importance of the fast and effective attack as a means of winning the Women's Hockey Game. It is also what Chinese team needs to enhance in the training. At the same time, it further proves the science and effectiveness of the training of the leading teams such as Dutch, Argentine and Australian women's hockey team.%利用文献资料法、专家访谈法、录像分析法和数理统计法,分析世界女子曲棍球项目的发展趋势,结果发现,团队精神和战术纪律、快速有效的进攻、坚强的意志品质以及精细的技术是女子曲棍球制胜的基本手段;利用统计学手段对2014年世界杯女子曲棍球赛中各队进攻数据的相关性分析证明了快速有效的进攻在女子曲棍球项目制胜手段中的重要性,这也是中国在今后训练中亟待加强的方面;同时也进一步佐证了荷兰、阿根廷以及澳大利亚等女子曲棍球强队训练的科学性与有效性。

  20. From Collegial Organization to Strategic Management of Resources

    Directory of Open Access Journals (Sweden)

    Bente Rasmussen

    2015-09-01

    Full Text Available The article looks into the consequences for recruitment of Organisation for Economic Co-Operation and Development’s recommendations that universities should manage their resources strategically to foster excellence. Using institutional ethnography as described by Dorothy Smith in a sociology department in Norway, it shows how strategic recruiting for excellence resulted in nominating candidates who were not able to teach the sociology program. Operationalizing potential for excellence as the number of (international publications in the last 5 years resulted in nominating candidates with narrow fields of expertise who had been offered favorable conditions to publish internationally. When academic quality is translated into the number of international publications in the last 5 years, it undermines the policy of gender equity in academia by ruling out women who use paid parental leave to have children during their PhD period. The focus on publications in English also threatens to marginalize sociology’s contribution to public debate and national policy.

  1. Talocrural dislocation with associated weber type C fibular fracture in a collegiate football player: a case report.

    Science.gov (United States)

    Ricci, R Daniel; Cerullo, James; Blanc, Robert O; McMahon, Patrick J; Buoncritiani, Anthony M; Stone, David A; Fu, Freddie H

    2008-01-01

    To present the case of a talocrural dislocation with a Weber type C fibular fracture in a National Collegiate Athletic Association Division I football athlete. The athlete, while attempting to make a tackle during a game, collided with an opponent, who in turn stepped on the lateral aspect of the athlete's ankle, resulting in forced ankle eversion and external rotation. On-field evaluation showed a laterally displaced talocrural dislocation. Immediate reduction was performed in the athletic training room to maintain skin integrity. Post-reduction radiographs revealed a Weber type C fibular fracture and increased medial joint clear space. A below-knee, fiberglass splint was applied to stabilize the ankle joint complex. Subtalar dislocation, Maisonneuve fracture, malleolar fracture, deltoid ligament rupture, syndesmosis disruption. The sports medicine staff immediately splinted and transported the athlete to the athletic training room to reduce the dislocation. The athlete then underwent an open reduction and internal fixation procedure to stabilize the injury: 2 syndesmosis screws and a fibular plate were placed to keep the ankle joint in an anatomically reduced position. With the guidance of the athletic training staff, the athlete underwent an accelerated physical rehabilitation protocol in an effort to return to sport as quickly and safely as possible. Most talocrural dislocations and associated Weber type C fibular fractures are due to motor vehicle accidents or falls. We are the first to describe this injury in a Division I football player and to present a general rehabilitation protocol for a high-level athlete. Sports medicine practitioners must recognize that this injury can occur in the athletic environment. Prompt reduction, early surgical intervention, sufficient resources, and an accelerated rehabilitation protocol all contributed to a successful outcome in the patient.

  2. Measurement of head impacts in collegiate football players: clinical measures of concussion after high- and low-magnitude impacts.

    Science.gov (United States)

    McCaffrey, Meghan A; Mihalik, Jason P; Crowell, Dean H; Shields, Edgar W; Guskiewicz, Kevin M

    2007-12-01

    It has been speculated that a theoretical injury threshold of 70 to 75 g may exist for concussions in football players. We aimed to investigate acute balance and neurocognitive performance after head impacts exceeding a theoretical injury threshold in the absence of both self-reported symptoms and a concussion diagnosis 24 hours before testing. Forty-three Division I collegiate football players participated in this double-blind, repeated-measures study. Subjects participated in three test sessions (baseline, low impact, and high impact) separated by at least 2 weeks. The Head Impact Telemetry System (Simbex, Lebanon, NH) recorded real-time head impacts sustained during practices and games. The Automated Neuropsychological Assessment Metrics assessed neurocognitive performance. The NeuroCom Sensory Organization Test (NeuroCom International Inc., Clackamas, OR) assessed postural stability. The Graded Symptom Checklist evaluated symptom presence and severity in our participants. After the low-impact test session (90 g) with improvements in Math Processing (F(1, 22) = 16.629; P < 0.001), Procedural Reaction Time (F(1, 22) = 14.668; P < 0.001), and the total number of symptoms reported (F(1, 22) = 10.267; P = 0.004). Neurocognitive improvements were likely attributed to a learning effect. Our findings suggest that sustaining an impact greater than 90 g does not result in acute observable balance and neurocognitive deficits within 24 hours of sustaining the impact. Although previous studies have suggested a theoretical injury threshold, none have been founded on empirical data collected on the playing field in real-time. Future studies should consider the cumulative effects of impacts of varying magnitudes.

  3. Need for and Interest in a Sports Nutrition Mobile Device Application Among Division I Collegiate Athletes.

    Science.gov (United States)

    Zuniga, Krystle E; Downey, Darcy L; McCluskey, Ryan; Rivers, Carley A

    2016-08-24

    The majority of National Collegiate Athletic Association (NCAA) programs do not have a sports nutritionist, leaving athletes to gather information from resources that vary in reputability. The objective of this study was to identify a need for the development of accessible and reputable resources of nutrition information by assessing the current use of nutrition information resources, dietary habits, and sports nutrition knowledge among Division I collegiate athletes. Seventy-two athletes across eight sports completed questionnaires concerning nutrition resources used, dietary habits, and sports nutrition knowledge. Additionally, interest levels in a mobile device application for delivery of nutrition information and tools were assessed. Primary sources for nutrition information included parents and family, athletic trainers (AT), and the internet/media, and athletes felt most comfortable discussing nutrition with parents and family, ATs, and strength and conditioning specialists. Performance on a sports nutrition knowledge questionnaire indicated a general lack of nutrition knowledge, and the high frequency of "unsure" responses suggested a lack of confidence in nutrition knowledge. Athletes conveyed a high likelihood that they would utilize a mobile device application as a nutrition resource, but were more interested in access to nutrition topics than tools such as a food log. We found that college athletes possess minimal sports nutrition knowledge, obtain nutrition information from non-professional resources, and were interested in utilizing a mobile device application as a resource. Further research is needed to explore the feasibility and effectiveness of alternative resources, such as a mobile device application, to deliver nutrition information and improve nutrition knowledge.

  4. Risk Factors for Injury Among Japanese Collegiate Players of American Football Based on Performance Test Results.

    Science.gov (United States)

    Iguchi, Junta; Watanabe, Yuya; Kimura, Misaka; Fujisawa, Yoshihiko; Hojo, Tatsuya; Yuasa, Yasuhiro; Higashi, Shinsuke; Kuzuhara, Kenji

    2016-12-01

    Iguchi, J, Watanabe, Y, Kimura, M, Fujisawa, Y, Hojo, T, Yuasa, Y, Higashi, S, and Kuzuhara, K. Risk factors for injury among Japanese collegiate players of American football based on performance test results. J Strength Cond Res 30(12): 3405-3411, 2016-The purpose of this study was to identify how risk factors for injury during American football are related to players' physical strength as determined using typical performance tests. One hundred 53 Japanese collegiate players of American football were recruited for this study. Eight potential risk factors were evaluated: position (skill vs. lineman), body mass index, back squat one-repetition maximum, vertical jump height, power, height, body weight, and previous injury. Using multivariate Cox regression, we examined how these factors were associated with knee sprain, ankle sprain, and hamstring strain. We recorded 63 injuries (17 knee sprains, 23 ankle sprains, and 23 hamstring strains). Players with higher power were at significantly greater risk for knee sprains (p = 0.04), those with low power had a significantly higher incidence of ankle sprain (p = 0.01), and vertical jump height was a significant predictor of hamstring strain (p = 0.02). We identified several independent predictors of injuries associated with American football. Our findings may contribute to the development of effective screening tests and prevention exercises.

  5. Comparison of static and dynamic balance in female collegiate soccer, basketball, and gymnastics athletes.

    Science.gov (United States)

    Bressel, Eadric; Yonker, Joshua C; Kras, John; Heath, Edward M

    2007-01-01

    How athletes from different sports perform on balance tests is not well understood. When prescribing balance exercises to athletes in different sports, it may be important to recognize performance variations. To compare static and dynamic balance among collegiate athletes competing or training in soccer, basketball, and gymnastics. A quasi-experimental, between-groups design. Independent variables included limb (dominant and nondominant) and sport played. A university athletic training facility. Thirty-four female volunteers who competed in National Collegiate Athletic Association Division I soccer (n = 11), basketball (n = 11), or gymnastics (n = 12). To assess static balance, participants performed 3 stance variations (double leg, single leg, and tandem leg) on 2 surfaces (stiff and compliant). For assessment of dynamic balance, participants performed multidirectional maximal single-leg reaches from a unilateral base of support. Errors from the Balance Error Scoring System and normalized leg reach distances from the Star Excursion Balance Test were used to assess static and dynamic balance, respectively. Balance Error Scoring System error scores for the gymnastics group were 55% lower than for the basketball group (P = .01), and Star Excursion Balance Test scores were 7% higher in the soccer group than the basketball group (P = .04). Gymnasts and soccer players did not differ in terms of static and dynamic balance. In contrast, basketball players displayed inferior static balance compared with gymnasts and inferior dynamic balance compared with soccer players.

  6. Urinary biomarkers of flame retardant exposure among collegiate U.S. gymnasts.

    Science.gov (United States)

    Carignan, Courtney C; Fang, Mingliang; Stapleton, Heather M; Heiger-Bernays, Wendy; McClean, Michael D; Webster, Thomas F

    2016-09-01

    Flame retardants are widely used in polyurethane foam materials including gymnastics safety equipment such as pit cubes and landing mats. We previously reported elevated concentrations of flame retardants in the air and dust of a U.S. gymnastics training facility and elevated PentaBDE in the serum of collegiate gymnasts. Our objective in this pilot study was to compare urinary biomarkers of exposure to other flame retardants and additives of polyurethane foam including tris(1,3-dichloro-2-propyl) phosphate (TDCIPP), triphenyl phosphate (TPHP) and 2-ethylhexyl- 2,3,4,5-tetrabromobenzoate (EH-TBB) in samples collected from 11 collegiate gymnasts before and after a gymnastics practice (n=53 urine samples total). We identified a 50% increase in the TPHP biomarker (p=0.03) from before to after practice, a non-significant 22% increase in the TDCIPP biomarker (p=0.14) and no change for the EH-TBB biomarker. These preliminary results indicate that the gymnastics training environment can be a source of recreational exposure to flame retardants. Such exposures are likely widespread, as we identified flame retardants in 89% of foam samples collected from gyms across the U.S.

  7. Gender Preference? National Collegiate Athletic Association Division I Student-Athletes and Strength and Conditioning Coaches.

    Science.gov (United States)

    Shuman, Kristin M; Appleby, Karen M

    2016-10-01

    Shuman, KM and Appleby, KM. Gender Preference? National Collegiate Athletic Association Division I Student-Athletes and Strength and Conditioning Coaches. J Strength Cond Res 30(10): 2924-2933, 2016-The purpose of this study was to examine the preferences and attitudes of National Collegiate Athletic Association (NCAA) Division I (DI) junior and senior class student-athletes toward the gender of their strength and conditioning coach (SCC). This study contributes to the empirical body of literature regarding student-athlete and strength and conditioning coach interaction specific to gender-related information and extends the efforts to increase student-athlete success. A qualitative framework was used for this study. Semistructured interviews were conducted with 10 NCAA DI junior or senior class student-athletes who had been exposed to and coached by both a male and a female SCC. The results of this study concluded that, in general, participants did not have a specific gender preference for their SCC. However, participants indicated a preference for a coaching leadership style, which conveyed (a) leadership ability, (b) professionalism,

  8. Rethinking collegiality: restratification in English general medical practice 2004-2008.

    Science.gov (United States)

    McDonald, Ruth; Checkland, Kath; Harrison, Stephen; Coleman, Anna

    2009-04-01

    For Freidson [(1985). The reorganisation of the medical profession. Medical Care Review, 42(1), 11-35], collegiality, or ostensible equal status amongst members of the medical profession, serves a dual purpose. It socialises members into an attitude of loyalty to colleagues and presents an image to those outside the profession that all its members are competent and trustworthy. However, Freidson saw the use of formal standards developed by one (knowledge) elite within medicine and enforced by another (administrative) elite as threatening collegiality and professional unity. Drawing on two studies in English primary medical care this paper reports the emergence of new strata or elites, with groups of doctors involved in surveillance of others and action to improve compliance in deficient individuals and organizations. Early indications are that these developments have not led to the consequences which Freidson predicted. The increasing acceptance of the legitimacy of professional scrutiny and accountability that we identify suggests that new norms are emerging in English primary medical care, the possibility of which Freidson's analysis fails to take account.

  9. Hang cleans and hang snatches produce similar improvements in female collegiate athletes.

    Science.gov (United States)

    Ayers, J L; DeBeliso, M; Sevene, T G; Adams, K J

    2016-09-01

    Olympic weightlifting movements and their variations are believed to be among the most effective ways to improve power, strength, and speed in athletes. This study investigated the effects of two Olympic weightlifting variations (hang cleans and hang snatches), on power (vertical jump height), strength (1RM back squat), and speed (40-yard sprint) in female collegiate athletes. 23 NCAA Division I female athletes were randomly assigned to either a hang clean group or hang snatch group. Athletes participated in two workout sessions a week for six weeks, performing either hang cleans or hang snatches for five sets of three repetitions with a load of 80-85% 1RM, concurrent with their existing, season-specific, resistance training program. Vertical jump height, 1RM back squat, and 40-yard sprint all had a significant, positive improvement from pre-training to post-training in both groups (p≤0.01). However, when comparing the gain scores between groups, there was no significant difference between the hang clean and hang snatch groups for any of the three dependent variables (i.e., vertical jump height, p=0.46; 1RM back squat, p=0.20; and 40-yard sprint, p=0.46). Short-term training emphasizing hang cleans or hang snatches produced similar improvements in power, strength, and speed in female collegiate athletes. This provides strength and conditioning professionals with two viable programmatic options in athletic-based exercises to improve power, strength, and speed.

  10. The effects of "grunting" on serve and forehand velocities in collegiate tennis players.

    Science.gov (United States)

    OʼConnell, Dennis G; Hinman, Martha R; Hearne, Kevin F; Michael, Zach S; Nixon, Sam L

    2014-12-01

    The aim of this study was to examine the effects of grunting on velocity and force production during dynamic and static tennis strokes in collegiate tennis players. Thirty-two (16 male and 16 female) division II and III collegiate tennis athletes with a mean age of 20.2 ± 1.89 years participated as subjects. Demographic and survey data were obtained before subjects completed a 10- to 15-minute warm-up of serves and ground strokes while grunting and not grunting. The subjects performed randomized sets (3 grunting and 3 nongrunting trials) of serves and forehand strokes both dynamically and isometrically. Stroke velocities and isometric forces were measured with a calibrated radar gun and calibrated dynamometer, respectively. Electromyographic (EMG) data from subjects' dominant pectoralis major and contralateral external oblique muscles were recorded and averaged for data analysis. A repeated measures multivariate analysis of variance (RM-MANOVA) compared dynamic stroke velocity, isometric muscle force, and peak EMG activity during each breathing condition at the 0.05 alpha level. The RM-MANOVA indicated that dynamic velocity and isometric force of both serves and forehand strokes were significantly greater when the subjects grunted (F = 46.572, p tennis serves and forehand strokes are significantly enhanced when athletes are allowed to grunt.

  11. Effects of commercially formulated water on the hydration status of dehydrated collegiate wrestlers.

    Science.gov (United States)

    Valiente, J Scott; Utter, Alan C; Quindry, John C; Nieman, David C

    2009-11-01

    The objective of this study was to evaluate the effects of three different drinks (commercially formulated water, bottled water, and a carbohydrate-electrolyte beverage) on blood and urinary markers of hydration after acute dehydration in collegiate wrestlers. Twenty-one athletes were recruited to perform a randomized, crossover study comparing the effectiveness of commercially formulated water, carbohydrate-electrolyte (6% or 60 g L(-1)), or regular bottled water (placebo) in promoting rehydration after a 3% reduction in body mass. Urine specific gravity (U(sg)), urine osmolarity (U(osm)), plasma osmolarity (P(osm)), and plasma volume were measured pre- and post-dehydration and at 1 hour after rehydration. Statistical analyses used a 3 (conditions) x 3 (times) repeated measures analysis of variance. Significant (p < 0.01) interactions were found for P(osm), U(osm), and U(sg). P(osm) returned to baseline levels and U(osm) remained in a lower balance after 1 hour of rehydration in the trials of the commercially formulated water and regular bottled water. No significant interactions were found for plasma volume shift. The findings of this study demonstrate that the commercially formulated water was no more effective in promoting rehydration than either a carbohydrate-electrolyte solution or plain water in collegiate wrestlers after a 3% reduction in body mass and a rehydration period of 1 hour when consuming 100% of their body weight loss.

  12. Neuropsychological functioning and recovery after mild head injury in collegiate athletes.

    Science.gov (United States)

    Macciocchi, S N; Barth, J T; Alves, W; Rimel, R W; Jane, J A

    1996-09-01

    This study prospectively examined neuropsychological functioning in 2300 collegiate football players from 10 National Collegiate Athletic Association Division A universities. The study was designed to determine the presence and duration of neuropsychological symptoms after mild head injury. A nonequivalent repeated measures control group design was used to compare the neuropsychological test scores and symptoms of injured players (n = 183) with those of gender, age, and education matched controls. A number of neuropsychological tests, including the Paced Auditory Serial Addition Test, the Digit Symbol Test, and the Trail Making Test, as well as a symptom checklist were used. Players and controls were assessed before engaging in game activity and 24 hours, 5 days, and 10 days after injury, using the standardized test battery and symptom checklist. Players with head injuries displayed impaired performance and increased symptoms in comparison to controls, but this impairment resolved within 5 days in most players. Players with head injuries showed significant improvement between 24 hours and 5 days, as well as between 5 and 10 days. Although single, uncomplicated mild head injuries do cause limited neuropsychological impairment, injured players generally experience rapid resolution of symptoms with minimal prolonged sequelae.

  13. COMPARISON OF THREE KINESIO TECHNIQUE APPLICATION ON JUMPING IN COLLEGIATE FEMALE ATHLETES

    Directory of Open Access Journals (Sweden)

    Kailash Sharma

    2015-06-01

    Full Text Available Background: Kinesio Tape (KT is a somewhat new type of taping technique gaining popularity as both treatment and performance enhancement tool. Considering the fact that KT can improve muscle performance, however, limited research has been done on the different technique of strips application of KT on functional performance. Therefore purpose of this study is to compare Comparison of three kinesio technique application on jumping in collegiate female athletes. Methods: 45 healthy collegiate female athletes were recruited based on inclusion and exclusion criteria. The subjects were randomly divided into three equal groups (group I, n=15, Group II, n=15 & group III, n=15. Group I received Y application of kinesio taping, Group II received I application of kinesio taping while, Group III underwent combined Y & I application of kinesio tape on triceps surae. Pre and post measurement of vertical jump (in terms of power average, power peak and horizontal distance were documented. Results: Statistically significant differences were found between the difference power average, difference power peak and difference horizontal jump in group I, II and III (p<0.001. Within group comparison also revealed statistically significant differences in power average, power peak and horizontal jump in all the three groups (p<0.001. Conclusion: Combined technique (Y and I application of kinesio was more effective in improving vertical jump (power average, power peak and horizontal jump as compared to Y and I application alone.

  14. Do children and adolescent ice hockey players with and without a history of concussion differ in robotic testing of sensory, motor and cognitive function?

    Science.gov (United States)

    Little, C Elaine; Emery, Carolyn; Scott, Stephen H; Meeuwisse, Willem; Palacios-Derflingher, Luz; Dukelow, Sean P

    2016-10-12

    KINARM end point robotic testing on a range of tasks evaluating sensory, motor and cognitive function in children/adolescents with no neurologic impairment has been shown to be reliable. The objective of this study was to determine whether differences in baseline performance on multiple robotic tasks could be identified between pediatric/adolescent ice hockey players (age range 10-14) with and without a history of concussion. Three hundred and eighty-five pediatric/adolescent ice hockey players (ages 10-14) completed robotic testing (94 with and 292 without a history of concussion). Five robotic tasks characterized sensorimotor and/or cognitive performance with assessment of reaching, position sense, bimanual motor function, visuospatial skills, attention and decision-making. Seventy-six performance parameters are reported across all tasks. There were no significant differences in performance demonstrated between children with a history of concussion [median number of days since last concussion: 480 (range 8-3330)] and those without across all five tasks. Performance by the children with no history of concussion was used to identify parameter reference ranges that spanned 95 % of the group. All 76 parameter means from the concussion group fell within the normative reference ranges. There are no differences in sensorimotor and/or cognitive performance across multiple parameters using KINARM end point robotic testing in children/adolescents with or without a history of concussion.

  15. Social Consciousness of Low-Income College Students in Taiwan: The Effects of Socioeconomic Status and Collegiate Involvement

    Science.gov (United States)

    Wu, Ching-Ling

    2014-01-01

    This study examined the socioeconomic status (SES), collegiate involvement, and social consciousness of low-income college students (LICSs) and higher-income college students (HICSs) in Taiwan. The study analyzed 1,453 LICSs and 1,453 HICSs from 156 colleges in Taiwan. The results showed that the two student groups exhibited different SESs and…

  16. Concepts Needed by Managerial Personnel in Automated Offices as Perceived by Office Systems Consultants and Collegiate Business Faculty.

    Science.gov (United States)

    Graves, Charlotte K.

    1985-01-01

    Office systems consultants, office administration faculty, and other collegiate business faculty (management, marketing, accounting, and finance) were asked to rate the importance of 42 concepts needed by managerial personnel in automated offices. Also, business faculty were asked to indicate which concepts were currently being taught in courses…

  17. Starting from Scratch: Greening Your Game Day--The Collegiate Football Sustainable Materials Management Toolkit. Version 1.0

    Science.gov (United States)

    Association for the Advancement of Sustainability in Higher Education, 2011

    2011-01-01

    The "Collegiate Football Sustainable Materials Management Toolkit" was researched by student interns in the Virginia Tech Office of Energy & Sustainability, developed in collaboration with the US EPA (US Environmental Protection Agency) and a national panel of technical experts from universities across the nation, and driven forward…

  18. Mission-Driven Expected Impact: Assessing Scholarly Output for 2013 Association to Advance Collegiate Schools of Business Standards

    Science.gov (United States)

    Goulet, Laurel R.; Lopes, Kevin J.; White, John Bryan

    2016-01-01

    As of the 2016-2017 academic year, all schools undergoing Association to Advance Collegiate Schools of Business accreditation will be assessed on the new standards that were ratified in 2013, which include the assessment of the impact of portfolios of intellectual contributions. The authors discuss key ideas underlying a business school's research…

  19. "Keep Pressing On": Spiritual Epistemology and Its Role in the Collegiate Lives of Black Gay and Bisexual Men

    Science.gov (United States)

    Means, Darris R.; Jaeger, Audrey J.

    2016-01-01

    This qualitative study explores how the spiritual epistemology of Black, gay and bisexual, cisgender men in college changed during their spiritual journeys and how participants used spirituality in their collegiate lives. External forces, such as family members, religious text, and church settings, initially shaped many participants' spirituality,…

  20. Diversity and Collegiate Experiences Affecting Self-Perceived Gains in Critical Thinking: Which Works, and Who Benefits?

    Science.gov (United States)

    Cole, Darnell; Zhou, Ji

    2014-01-01

    This study is grounded in the theoretical and conceptual frameworks that postulate diversity and collegiate experiences as triggers for the cognitive disequilibrium that fosters critical thinking (CT). With the assumption that CT is both a general and a discipline-specific facility, this longitudinal, single-institution study of 447 students…

  1. Assessing Intrinsic Values of a Lecture-Free High School Science Education for Collegiate Science Work: A Case Study

    Science.gov (United States)

    Dorais, Christopher James

    2012-01-01

    This case study examined the efficacy of the individualized instruction teaching methodology as it was applied within high school science classes. Also examined was how individualized instruction at the high school level prepared students to do collegiate science level work. [The dissertation citations contained here are published with the…

  2. Goal-Orientation VS. Self-Orientation: Two Perspectives Affecting Indecision About Collegiate Major and Career Choice.

    Science.gov (United States)

    Appel, Victor H.; Witzke, Donald B.

    College freshmen enter higher education at varying degrees of maturity and some are, therefore, more certain of their future career plans than are others. In the present study the investigators sought to determine the factors associated with decision and indecision regarding collegiate major and career choice. Thus, the authors developed the…

  3. "Stand by Me": A Mixed Methods Study of a Collegiate Marching Band Members' Intragroup Beliefs throughout a Performance Season

    Science.gov (United States)

    Matthews, Wendy K.

    2017-01-01

    The purpose of this mixed methods study was to investigate intragroup beliefs regarding participation in a National Collegiate Athletic Association (NCAA) Division II marching band throughout the university's American football season. Fifty-three undergraduates from an urban midwestern university elected one of two options: (1) focus group only or…

  4. Heterosexism in Sport: Attitudes toward Lesbians and Gay Men among Collegiate Varsity and Recreational Club Sport Athletes

    Science.gov (United States)

    Anderson, Austin Robert

    2011-01-01

    This study investigated attitudes toward gay men and lesbians among collegiate varsity athletes and recreational sport club participants, including an investigation of differences in attitudes across competitive levels, team and individual sport divisions, sport by sport comparisons, gender, grade level, race, contact with gay men and lesbians and…

  5. Twenty-Five Years of Collegial Management: The Dickinson College Model of Revolving Leadership and Holistic Librarianship.

    Science.gov (United States)

    McKinzie, Steve

    2000-01-01

    This case study describes the management system of Dickinson College Library. Highlights include a rotating chair instead of a director; collegiality in decision making; rotating departmental responsibilities; developing an acceptable level of expertise in both technical and public services; and an emphasis on professionalism. (Author/LRW)

  6. Keeping Faculty [Happy]: The Critical Role of a Faculty Center in Developing and Retaining Quality, Collegial Faculty

    Science.gov (United States)

    Hargis, Jace; Gilbertson, Phil

    2010-01-01

    This paper describes an innovative approach to retaining happy and healthy faculty members in a collegial, productive teaching and learning environment. A major portion of the paper shares how the Faculty Center for Teaching and Learning plays a significant role in the faculty interview process, new faculty orientation, and subsequent mentoring of…

  7. Collegiate-Based Emergency Medical Service: Impact on Alcohol-Related Emergency Department Transports at a Small Liberal Arts College

    Science.gov (United States)

    Rosen, Joshua B.; Olson, Mark H.; Kelly, Marianne

    2012-01-01

    Objective: The authors examined the impact of a collegiate-based emergency medical service (CBEMS) on the frequency of emergency department (ED) transports. Participants: Students transported to the ED for acute alcohol intoxication during the Fall 2008 and the Fall 2009 semesters (N = 50). Methods: The frequency of students receiving…

  8. How Project Management Tools Aid in Association to Advance Collegiate Schools of Business (AACSB) International Maintenance of Accreditation

    Science.gov (United States)

    Cann, Cynthia W.; Brumagim, Alan L.

    2008-01-01

    The authors present the case of one business college's use of project management techniques as tools for accomplishing Association to Advance Collegiate Schools of Business (AACSB) International maintenance of accreditation. Using these techniques provides an efficient and effective method of organizing maintenance efforts. In addition, using…

  9. Perceptions of Drinking among Hispanic College Students: How Qualitative Research Can Inform the Development of Collegiate Alcohol Abuse Prevention Programs

    Science.gov (United States)

    Quintero, Gilbert A.; Young, Kathleen J.; Mier, Nelda; Jenks, Shepard, Jr.

    2005-01-01

    Alcohol abuse on college campuses continues to be a significant public health issue and health promotion strategies are being directed at changing the culture of collegiate drinking. From a qualitative research perspective such efforts remain uniformed since this area of research is currently dominated by large-scale surveys that illuminate little…

  10. Exploring Teachers' Beliefs about Teacher Learning in Professional Learning Communities and Their Influence on Collegial Activities in Two Departments

    Science.gov (United States)

    Tam, Angela Choi Fung

    2015-01-01

    Factors leading to successful professional learning communities (PLCs) have been widely discussed in the West, but little is known about how/whether teachers' beliefs contribute to PLCs in the Chinese context. This qualitative case study aimed to investigate teachers' beliefs about teacher learning in PLCs and their influence on collegial learning…

  11. Descriptive Epidemiology of Collegiate Men's Soccer Injuries: National Collegiate Athletic Association Injury Surveillance System, 1988–1989 Through 2002–2003

    Science.gov (United States)

    Agel, Julie; Evans, Todd A; Dick, Randall; Putukian, Margot; Marshall, Stephen W

    2007-01-01

    Objective: To review 15 years of National Collegiate Athletic Association (NCAA) injury surveillance data for men's soccer and to identify potential areas for injury prevention initiatives. Background: The NCAA sanctioned its first men's soccer championship in 1959. Since then, the sport has grown to include more than 18 000 annual participants across 3 NCAA divisions. During the 15 years from 1988–1989 to 2002–2003, the NCAA Injury Surveillance System accumulated game and practice injury data for men's soccer across all 3 NCAA divisions. Main Results: The injury rate was 4 times higher in games compared with practices (18.75 versus 4.34 injuries per 1000 athlete-exposures, rate ratio = 4.3, 95% confidence interval = 4.2, 4.5), and preseason practices had a higher injury rate than in-season practices (7.98 versus 2.43 injuries per 1000 athlete-exposures, rate ratio = 3.3, 95% confidence interval = 3.1, 3.5). In both games and practices, more than two thirds of men's soccer injuries occurred to the lower extremities, followed by the head and neck in games and the trunk and back in practices. Although player-to-player contact was the primary cause of injury during games, most practice injuries occurred without direct contact to the injured body part. Ankle ligament sprains represented the most common injury during practices and games, whereas knee internal derangements were the most common type of severe injury (defined as 10+ days of time loss). Recommendations: Sprains, contusions, and strains of the lower extremities were the most common injuries in men's collegiate soccer, with player-to-player contact the primary injury mechanism during games. Preventive efforts should focus on the player-to-player contact that often leads to these injuries and greater enforcement of the rules that are in place to limit their frequency and severity. Emphasis also should be placed on addressing the high rate of first-time and recurrent ankle ligament sprains. PMID:17710176

  12. Acromioclavicular joint injuries in National Collegiate Athletic Association football: data from the 2004-2005 through 2008-2009 National Collegiate Athletic Association Injury Surveillance System.

    Science.gov (United States)

    Dragoo, Jason L; Braun, Hillary J; Bartlinski, Stephen E; Harris, Alex H S

    2012-09-01

    Injuries to the shoulder are common in collegiate football, and injuries to the acromioclavicular (AC) joint have previously accounted for up to 41% of all shoulder injuries. To determine the incidence and epidemiology of injury to the AC joint in National Collegiate Athletic Association (NCAA) football athletes. Descriptive epidemiology study. The NCAA Injury Surveillance System (ISS) men's football database was reviewed from the 2004-2009 playing seasons. The exposure data set from the same years was reviewed for the purposes of computing rates of injury per athlete exposure (AE). The injury rate (number of injuries divided by number of AEs) was computed per 10,000 AEs for competition and practice exposures. Ninety-five percent confidence intervals (95% CIs) for the incidence rates were calculated using assumptions of a Poisson distribution. According to the estimates made by the NCAA ISS, a total of 748 injuries to the AC joint occurred in NCAA football players during 2,222,155 AEs, accounting for 4.49% of all injuries sustained during this 5-year surveillance period. The overall rate of injury was 3.34 per 10,000 AEs (95% CI, 3.10-3.59). Players were 11.68 (95% CI, 10.11-13.49) times more likely to sustain an injury in games than practices. Partial sprains (types I or II) accounted for 96.4% of injuries, while complete sprains (≥type III) accounted for the remaining 3.6%. The average amount of time lost per injury was 11.61 days. Complete sprains resulted in a mean time loss of 31.9 days (95% CI, 24.4-39.6) while partial injuries resulted in 11.0 days lost (95% CI, 9.6-12.3). Overall, 2.41% of injuries underwent surgical intervention, with 22.2% of complete sprains and 1.7% of partial injuries resulting in surgery. Complete sprains of the AC joint were 13.5 (95% CI, 4.63-35.26) times more likely to result in surgical intervention than partial sprains. The majority of injuries (71.93%) resulted from contact with another player and 47.09% occurred while

  13. Main Factors Influencing the Formation of Competitive Ability of Ice Hockey Players%冰球运动员竞技能力形成的主导影响因素

    Institute of Scientific and Technical Information of China (English)

    申利军; 左斌

    2013-01-01

    The competitive ability of ice hockey players is one or the important factors for success in games . The competitive ability of ice hockey players is influenced by many factors , except the innate body shape , sports quality potential , special sports intelligence and other genetic factors;From the view of training , the coach plays an important role in the competitive ability of ice hockey players , combination scientific ability with biological technology , training arrangement in different stages , the systematicness of training plans , training load arrangement and requirement and so on is the scientific guarantee of improving the competitive ability of ice hockey;From the view of social environment , the conflict of traditional culture and the compe-tition value of ice hockey gives a negative influence on the competitive ability of players , good environment of the team has a positive influence on the competitive ability of players , ice hockey competition promotes the development of the competitive ability of ice hockey players .%冰球运动员的竞技能力是在比赛中获得胜利的关键因素之一。冰球运动员竞技能力受多种因素共同作用,除先天的身体体形、运动素质潜力、专项运动智力等遗传因素外;从训练的角度看,教练员对冰球运动员竞技能力起着关键作用,科技能力和生物科技手段相结合、冰球运动员在不同阶段的训练安排、训练计划的系统性、训练负荷安排和要求等是构成提高冰球项目竞技能力的科学保障;从社会环境的角度看,传统文化与冰球项目竞赛价值的冲突对运动员竞技能力易产生负面的影响,球队内部良好的环境对运动员竞技能力产生积极的影响,冰球竞赛促进冰球运动员竞技能力的发展。

  14. Mind the Gap. Combining Theory and Practice in a Field Experience

    Science.gov (United States)

    Turunen, Tuija A.; Tuovila, Seija

    2012-01-01

    In this article, we describe a collegial case study conducted in one Finnish university during the last field experience in a primary school teacher education program and discuss pedagogy of supervision from university supervisors' perspectives. The aim of the study was to clarify the role of university supervisors and try out a collegial…

  15. Teardrop fracture following head-first impact in an ice hockey player: Case report and analysis of injury mechanisms.

    Science.gov (United States)

    Yue, James J; Ivancic, Paul C; Scott, David L

    2016-01-01

    We report a case of a young male athlete who sustained a three column displaced teardrop fracture of the C5 vertebra due to a head-first impact in hockey, suffered neurapraxia, yet made full neurological recovery. This full recovery was in sharp contrast to multiple case series which reported permanent quadriplegia in the vast majority of teardrop fracture patients. We investigate the etiology and biomechanical mechanisms of injury. Admission imaging revealed the teardrop fracture which consisted of: a frontal plane fracture which separated an anterior quadrilateral-shaped fragment from the posterior vertebral body; a vertical fracture of the posterior vertebral body in the sagittal plane; and incomplete fractures of the neural arch that initiated superiorly at the anterior aspect of the spinous process and left lamina adjacent to the superior facet. Epidural hematoma in the region of the C5 vertebra was observed in addition to disc and ligamentous disruptions at C4-5 and C5-6. Our patient was ultimately treated surgically with anterior fusion from C4 through C6 and subsequently with bilateral posterior fusion at C5-6. The injuries were caused by high-energy axial compression with the neck in a pre-flexed posture. The first fracture event consisted of the anterior vertebral body fragment being sheared off of the posterior fragment under the compression load due in part to the sagittal plane concavity of the C5 inferior endplate. The etiology of the vertical fracture of the posterior vertebral body fragment in the sagittal plane was consistent with a previously described hypothesis of the mechanistic injury events. First, the C4-5 disc height decreased under load which increased its hoop stress. Next, this increased hoop stress transferred lateral forces to the C5 uncinate processes which caused their outward expansion. Finally, the outward expansion of the uncinate processes caused the left and right sides of the vertebral body to split and spread. Evidence in

  16. Motivations Associated With Nondisclosure of Self-Reported Concussions in Former Collegiate Athletes.

    Science.gov (United States)

    Kerr, Zachary Y; Register-Mihalik, Johna K; Kroshus, Emily; Baugh, Christine M; Marshall, Stephen W

    2016-01-01

    Previous studies examining nondisclosure among athletes in various settings have found substantial proportions of athletes with undisclosed concussions. Substantial gaps exist in our understanding of the factors influencing athletes' disclosure of sports-related concussions. To examine the prevalence of, and factors associated with, nondisclosure of recalled concussions in former collegiate athletes. Cross-sectional study; Level of evidence, 3. Former collegiate athletes (N = 797) completed an online questionnaire. Respondents recalled self-identified sports-related concussions (SISRCs) that they sustained while playing sports in high school, college, or professionally, and whether they disclosed these SISRCs to others. Respondents also recalled motivations for nondisclosure. The prevalence of nondisclosure was calculated among those who recalled SISRCs. Multivariate binomial regression estimated adjusted prevalence ratios (PRs) with 95% CIs, controlling for sex, level of contact in sports, and year the athletes began playing collegiate sports. A total of 214 respondents (26.9%) reported sustaining at least 1 SISRC. Of these, 71 (33.2%) reported not disclosing at least 1 SISRC. Former football athletes were most likely to report nondisclosure (68.3% of those recalling SISRCs); female athletes who participated in low/noncontact sports were the least likely to report nondisclosure (11.1% of those recalling SISRC). The prevalence of nondisclosure was higher among men than women in the univariate analysis (PR, 2.88; 95% CI, 1.62-5.14), multivariate analysis (PR, 2.11; 95% CI, 1.13-3.96), and multivariate analysis excluding former football athletes (PR, 2.11; 95% CI, 1.12-3.94). The most commonly reported motivations were as follows: did not want to leave the game/practice (78.9%), did not want to let the team down (71.8%), did not know it was a concussion (70.4%), and did not think it was serious enough (70.4%). Consistent with previous studies, a substantial

  17. Laboratory and Match Physiological Data From an Elite Male Collegiate Soccer Athlete.

    Science.gov (United States)

    Sapp, Ryan M; Aronhalt, Logan; Landers-Ramos, Rian Q; Spangenburg, Espen E; Wang, Min Qi; Hagberg, James M

    2017-10-01

    Sapp, RM, Aronhalt, L, Landers-Ramos, RQ, Spangenburg, EE, Wang, MQ, and Hagberg, JM. Laboratory and match physiological data from an elite male collegiate soccer athlete. J Strength Cond Res 31(10): 2645-2651, 2017-This study compared physiological data from an elite collegiate soccer player to those of his teammates over 2 seasons. The player of special interest (player A) was the winner of the MAC Hermann Trophy and was therefore considered the top player in National Collegiate Athletic Association (NCAA) division I soccer for each of the 2 seasons in which data were collected. Maximal oxygen consumption (V[Combining Dot Above]O2max) was measured during preseasons and heart rate (HR) was recorded during competitive matches. Polar Training Loads (PTL) were calculated using the Polar Team2 Pro (Polar USA) system based on time spent in HR zones. Player A had a lower V[Combining Dot Above]O2max than the team average in 2012 (56 vs. 61.5 ± 4.3 ml·kg·min) and a similar value in 2013 (54 vs. 56.9 ± 5.1 ml·kg·min). During matches, player A showed consistent significant differences from the team in percentage of time spent at 70-79% maximal heart rate (HRmax) (12.8 ± 5.5% vs. 10.1 ± 4.0%), 80-89% HRmax (54.3 ± 11.5% vs. 29.3 ± 6.8%), and 90-100% HRmax (23.1 ± 10.6% vs. 45.4 ± 8.5%). This led to a consistently lower PTL per minute accumulated by player A compared with his teammates (3.6 ± 0.4 vs. 4.4 ± 0.3), which may be beneficial over a season and may be related to his success. Thus, the ability to regulate moments of maximal exertion is useful in reducing training load and may be a characteristic of elite players, although whether our findings relate to differences in the playing style, position, or aerobic capacity of player A are unknown.

  18. Epidemiological Patterns of Initial and Subsequent Injuries in Collegiate Football Athletes.

    Science.gov (United States)

    Williams, Jacob Z; Singichetti, Bhavna; Li, Hongmei; Xiang, Henry; Klingele, Kevin E; Yang, Jingzhen

    2017-04-01

    A body of epidemiological studies has examined football injuries and associated risk factors among collegiate athletes. However, few existing studies specifically analyzed injury risk in terms of initial or subsequent injuries. To determine athlete-exposures (AEs) and rates of initial and subsequent injury among collegiate football athletes. Descriptive epidemiological study. Injury and exposure data collected from collegiate football players from two Division I universities (2007-2011) were analyzed. Rate of initial injury was calculated as the number of initial injuries divided by the total number of AEs for initial injuries, while the rate for subsequent injury was calculated as the number of subsequent injuries divided by the total number of AEs for subsequent injury. Poisson regression was used to determine injury rate ratio (subsequent vs initial injury), with adjustment for other covariates. The total AEs during the study period were 67,564, resulting in an overall injury rate of 35.2 per 10,000 AEs. Rates for initial and subsequent injuries were 31.7 and 45.3 per 10,000 AEs, respectively, with a rate ratio (RR) of 1.4 for rate of subsequent injury vs rate of initial injury (95% CI, 1.1-1.9). Rate of injury appeared to increase with each successive injury. RR during games was 1.8 (95% CI, 1.1-3.0). The rate of subsequent injuries to the head, neck, and face was 10.9 per 10,000 AEs, nearly double the rate of initial injuries to the same sites (RR = 2.0; 95% CI, 1.1-3.5). For wide receivers, the rate of subsequent injuries was 2.2 times the rate of initial injuries (95% CI, 1.3-3.8), and for defensive linemen, the rate of subsequent injuries was 2.1 times the rate of initial injuries (95% CI, 1.1-3.9). The method used in this study allows for a more accurate determination of injury risk among football players who have already been injured at least once. Further research is warranted to better identify which specific factors contribute to this increased risk

  19. Epidemiology of collegiate injuries for 15 sports: summary and recommendations for injury prevention initiatives.

    Science.gov (United States)

    Hootman, Jennifer M; Dick, Randall; Agel, Julie

    2007-01-01

    To summarize 16 years of National Collegiate Athletic Association (NCAA) injury surveillance data for 15 sports and to identify potential modifiable risk factors to target for injury prevention initiatives. In 1982, the NCAA began collecting standardized injury and exposure data for collegiate sports through its Injury Surveillance System (ISS). This special issue reviews 182 000 injuries and slightly more than 1 million exposure records captured over a 16-year time period (1988-1989 through 2003-2004). Game and practice injuries that required medical attention and resulted in at least 1 day of time loss were included. An exposure was defined as 1 athlete participating in 1 practice or game and is expressed as an athlete-exposure (A-E). Combining data for all sports, injury rates were statistically significantly higher in games (13.8 injuries per 1000 A-Es) than in practices (4.0 injuries per 1000 A-Es), and preseason practice injury rates (6.6 injuries per 1000 A-Es) were significantly higher than both in-season (2.3 injuries per 1000 A-Es) and postseason (1.4 injuries per 1000 A-Es) practice rates. No significant change in game or practice injury rates was noted over the 16 years. More than 50% of all injuries were to the lower extremity. Ankle ligament sprains were the most common injury over all sports, accounting for 15% of all reported injuries. Rates of concussions and anterior cruciate ligament injuries increased significantly (average annual increases of 7.0% and 1.3%, respectively) over the sample period. These trends may reflect improvements in identification of these injuries, especially for concussion, over time. Football had the highest injury rates for both practices (9.6 injuries per 1000 A-Es) and games (35.9 injuries per 1000 A-Es), whereas men's baseball had the lowest rate in practice (1.9 injuries per 1000 A-Es) and women's softball had the lowest rate in games (4.3 injuries per 1000 A-Es). In general, participation in college athletics is safe

  20. Comparison of Injuries in American Collegiate Football and Club Rugby: A Prospective Cohort Study.

    Science.gov (United States)

    Willigenburg, Nienke W; Borchers, James R; Quincy, Richard; Kaeding, Christopher C; Hewett, Timothy E

    2016-03-01

    American football and rugby players are at substantial risk of injury because of the full-contact nature of these sports. Methodological differences between previous epidemiological studies hamper an accurate comparison of injury rates between American football and rugby. To directly compare injury rates in American collegiate football and rugby, specified by location, type, mechanism, and severity of injury, as reported by licensed medical professionals. Cohort study; Level of evidence, 2. Licensed medical professionals (athletic trainer or physician) associated with the football and rugby teams of a National Collegiate Athletic Association Division I university reported attendance and injury details over 3 autumn seasons. Injuries were categorized by the location, type, mechanism, and severity of injury, and the injury rate was calculated per 1000 athlete-exposures (AEs). Injury rate ratios (IRRs) were calculated to compare overall, game, and practice injury rates within and between sports. The overall injury rate was 4.9/1000 AEs in football versus 15.2/1000 AEs in rugby: IRR = 3.1 (95% CI, 2.3-4.2). Game injury rates were higher than practice injury rates: IRR = 6.5 (95% CI, 4.5-9.3) in football and IRR = 5.1 (95% CI, 3.0-8.6) in rugby. Injury rates for the shoulder, wrist/hand, and lower leg and for sprains, fractures, and contusions in rugby were >4 times as high as those in football (all P ≤ 0.006). Concussion rates were 1.0/1000 AEs in football versus 2.5/1000 AEs in rugby. Most injuries occurred via direct player contact, especially during games. The rate of season-ending injuries (>3 months of time loss) was 0.8/1000 AEs in football versus 1.0/1000 AEs in rugby: IRR = 1.3 (95% CI, 0.4-3.4). Overall injury rates were substantially higher in collegiate rugby compared with football. Similarities between sports were observed in the most common injury types (sprains and concussions), locations (lower extremity and head), and mechanisms (direct player contact

  1. Descriptive Epidemiology of Collegiate Women's Gymnastics Injuries: National Collegiate Athletic Association Injury Surveillance System, 1988–1989 Through 2003–2004

    Science.gov (United States)

    Marshall, Stephen W; Covassin, Tracey; Dick, Randall; Nassar, Lawrence G; Agel, Julie

    2007-01-01

    Objective: To review 16 years of National Collegiate Athletic Association (NCAA) injury surveillance data for women's gymnastics and identify potential areas for injury prevention initiatives. Background: In the 1988–1989 academic year, 112 schools were sponsoring varsity women's gymnastics teams, with approximately 1550 participants. By 2003–2004, the number of varsity teams had decreased 23% to 86, involving 1380 participants. Significant participation reductions during this time were particularly apparent in Divisions II and III. Main Results: A significant annual average decrease was noted in competition (−4.0%, P Gymnasts with a previous history of ankle sprain should either wear an ankle brace or use prophylactic tape on their ankles to decrease the risk of recurrent injury. Preventive efforts may incorporate more neuromuscular training and core stability programs in the off-season and preseason conditioning to enhance proper landing and skill mechanics. Equipment manufacturers are encouraged to reevaluate the design of the landing mats to allow for better absorption of forces. PMID:17710171

  2. Current issues in retailing: Relationships and emerging opportunities: Introduction to the special issue from the American Collegiate Retailing Association 2005 and 2006 conferences

    National Research Council Canada - National Science Library

    Kaufman-Scarborough, Carol; Forsythe, Sandra

    2009-01-01

    .... The papers appearing in this special issue, consisting of the best papers from the Spring and Winter conferences of the American Collegiate Retailing Association held in 2005 and 2006, capture these cutting-edge issues...

  3. Organizational effectiveness: the key to accountability for collegiate schools of nursing.

    Science.gov (United States)

    Travis, L L; Higgins, P A; Mathews, M B

    1994-01-01

    This study describes the organizational effectiveness of collegiate nursing programs in terms of their ability to interact with their external environment. Nursing education administrators from 401 institutions were surveyed concerning their ability to secure resources and the degree of their system's openness and community interaction. Overall, with a response rate of 76.8 per cent, the administrators considered the availability of resources to be adequate and perceived their programs to be moderately successful in procuring resources. A categorical comparison of responses indicated that administrators in specialized/professional institutions identified a greater degree of richness in the availability of resources and perceived their programs to be more successful in procuring resources. However, a second categorical comparison found no statistically significant differences among administrators in their perception of system openness and community interaction. All administrators considered their environments cooperative, accepting, predictable, and stable.

  4. Comparison of nutritional intake, body composition, bone mineral density, and isokinetic strength in collegiate female dancers.

    Science.gov (United States)

    Lim, Se-Na; Chai, Joo-Hee; Song, Jong Kook; Seo, Myong-Won; Kim, Hyun-Bae

    2015-12-01

    This study compared nutritional intake, body composition, bone mineral density, and isokinetic strength by dance type in collegiate female dancers. The study subjects included Korean dancers (n=12), ballet dancers (n=13), contemporary dancers (n=8), and controls (n=12). Nutritional intake was estimated using the Computer Aided Nutritional Analysis Program. Body composition and bone mineral density were measured using dual-energy X-ray absorptiometry. Isokinetic knee joint strength was measured by Cybex 770-NORM. All statistical analyses were performed by SAS 9.2. Means and standard deviations were calculated using descriptive statistics. One-way analysis of variance was applied to evaluate nutritional intake, body composition, bone mineral density, and isokinetic strength differences. Duncan multiple range test was used for post hoc testing. A level of significance was set at Pcontemporary and ballet dancers had lower body fat percentages than controls (Pdance type and more scientific methods of dance training are needed.

  5. Relationship between motor skill and competition result of the collegiate badminton athletes

    Directory of Open Access Journals (Sweden)

    Sasaki Satoshi

    2011-12-01

    Full Text Available Recently, a lot of studies have investigated the talent identification in the world of sports. It is very important to get to know an elite athlete's motor skills. The present study investigated the index of talent identification for collegiate badminton athletes. Subjects were 20 badminton athletes (10 men and 10 women, from 18 to 22 years old whom belonged to the university. The men divided into the athletes who participated in intercollege badminton championship, and other athletes. The women divided into the athletes who had result best 16 and more in intercollege badminton championship, and other athletes. we measured the physique (3 items and motor skill (6 items. As a result, the positive correlation was seen between the competition result and the pro-agility test in men, and the vertical jump in women. Our findings suggest that adolescent badminton athletes with higher score have possibility to advance their career in badminton.

  6. The Effect of the "Zero Tolerance for Head Contact" Rule Change on the Risk of Concussions in Youth Ice Hockey Players.

    Science.gov (United States)

    Krolikowski, Maciej P; Black, Amanda M; Palacios-Derflingher, Luz; Blake, Tracy A; Schneider, Kathryn J; Emery, Carolyn A

    2017-02-01

    Ice hockey is a popular winter sport in Canada. Concussions account for the greatest proportion of all injuries in youth ice hockey. In 2011, a policy change enforcing "zero tolerance for head contact" was implemented in all leagues in Canada. To determine if the risk of game-related concussions and more severe concussions (ie, resulting in >10 days of time loss) and the mechanisms of a concussion differed for Pee Wee class (ages 11-12 years) and Bantam class (ages 13-14 years) players after the 2011 "zero tolerance for head contact" policy change compared with players in similar divisions before the policy change. Cohort study; Level of evidence, 3. The retrospective cohort included Pee Wee (most elite 70%, 2007-2008; n = 891) and Bantam (most elite 30%, 2008-2009; n = 378) players before the rule change and Pee Wee (2011-2012; n = 588) and Bantam (2011-2012; n = 242) players in the same levels of play after the policy change. Suspected concussions were identified by a team designate and referred to a sport medicine physician for diagnosis. Incidence rate ratios (IRRs) were estimated based on multiple Poisson regression analysis, controlling for clustering by team and other important covariates and offset by game-exposure hours. Incidence rates based on the mechanisms of a concussion were estimated based on univariate Poisson regression analysis. The risk of game-related concussions increased after the head contact rule in Pee Wee (IRR, 1.85; 95% CI, 1.20-2.86) and Bantam (IRR, 2.48; 95% CI, 1.17-5.24) players. The risk of more severe concussions increased after the head contact rule in Pee Wee (IRR, 4.12; 95% CI, 2.00-8.50) and Bantam (IRR, 7.91; 95% CI, 3.13-19.94) players. The rates of concussions due to body checking and direct head contact increased after the rule change. The "zero tolerance for head contact" policy change did not reduce the risk of game-related concussions in Pee Wee or Bantam class ice hockey players. Increased concussion awareness and

  7. 冰球运动员肱骨外上髁炎的防治%Treatment and Precaution on the Ice Hockey Players' Humeral Lateral Epicondylitis

    Institute of Scientific and Technical Information of China (English)

    高文岳; 宋克宁

    2011-01-01

    The incidence of ice hockey players'athletic injuries is high because it's not only a fierce confrontational event with heavy intensity, fast speed, high difficulty and continual body contact, but also an athletic event with high requirement of muscle strength and flexility. Humeral lateral epieondylitis is one of the ice hockey players'most common athletic injuries, which is related with their frequent swinging the stick to hit the puck in playing. Wrong or delayed treatment and precaution will badly influence their athletic life and even their future daily living. By analyzing its pathogeny and pathology, the paper indicates the ice hockey players' common symptoms physical sign and diagnosis of humeral lateral epicondylitis. It many - sidedly puts forward and demonstrates the treatment and precaution against the players'humeral lateral epicondylitis.%冰球运动是一项强度大、速度快、难度高并且身体接触频繁的激烈对抗性体育运动,也是一项对肌肉力量素质和柔韧性素质要求很高的运动项目,运动损伤的发生率较高。肱骨外上髁炎在冰球运动员群体中是最常见的运动损伤之一,主要是运动员经常挥拍击球有关,如预防和治疗不正确、不及时,不仅会严重影响运动员的运动寿命,甚至影响今后的日常生活。分析和总结了冰球运动员肱骨外上髁炎发生的病因病理,指出了冰球运动员肱骨外上髁炎的常见症状、体征和诊断要点,从多方面提出和论证了冰球运动员肱骨外上髁炎的治疗和预防措施。

  8. A Comparison of Women’s Collegiate and Girls’ High School Volleyball Injury Data Collected Prospectively Over a 4-Year Period

    Science.gov (United States)

    Reeser, Jonathan C.; Gregory, Andrew; Berg, Richard L.; Comstock, R. Dawn

    2015-01-01

    Background: There is a relative paucity of research examining the sport-specific injury epidemiology of high school and collegiate volleyball athletes. Moreover, differences in study methodology frequently limit our ability to compare and contrast injury data collected from selected populations. Hypothesis: There are differences between the injury patterns characteristic of high school and collegiate female volleyball athletes. Study Design: Retrospective clinical review. Level of Evidence: Level 3. Methods: We statistically analyzed injury incidence and outcome data collected over a 4-year interval (2005-2006 to 2008-2009) by 2 similar injury surveillance systems, the National Collegiate Athletic Association’s Injury Surveillance System (NCAA ISS) and the High School Reporting Injuries Online (HS RIO). We compared diagnoses, anatomic distribution of injuries, mechanisms of injury, and time lost from training or competition between high school and collegiate volleyball athletes. Results: The overall volleyball-related injury rate was significantly greater among collegiate athletes than among high school athletes during both competition (injury rate ratio, 2.9; 95% CI, 2.5-3.4) and practice (injury rate ratio, 3.5; 95% CI, 3.1-3.9). Collegiate athletes had a higher rate of ankle sprain, knee injury, and shoulder injury. Concussions represented a relatively high percentage of injuries in both populations (5.0% of total NCAA ISS injuries vs 4.8% of total HS RIO injuries, respectively). Conclusion: The data suggest that although similar, there were distinct differences between the injury patterns of the 2 populations. Compared with high school volleyball players, collegiate athletes have a higher rate of acute time loss injury as well as overuse time loss injury (particularly patellar tendinosis). Concussions represented a significant and worrisome component of the injury pattern for both study populations. Clinical Relevance: The injury data suggest that important

  9. Fatness mediates the influence of muscular fitness on metabolic syndrome in Colombian collegiate students

    Science.gov (United States)

    Carrillo, Hugo Alejandro; González-Ruíz, Katherine; Vivas, Andrés; Triana-Reina, Héctor Reynaldo; Martínez-Torres, Javier; Prieto-Benavidez, Daniel Humberto; Ramos-Sepúlveda, Jeison Alexander; Villa-González, Emilio

    2017-01-01

    The purpose of this study was two-fold: to analyze the association between muscular fitness (MF) and clustering of metabolic syndrome (MetS) components, and to determine if fatness parameters mediate the association between MF and MetS clustering in Colombian collegiate students. This cross-sectional study included a total of 886 (51.9% women) healthy collegiate students (21.4 ± 3.3 years old). Standing broad jump and isometric handgrip dynamometry were used as indicators of lower and upper body MF, respectively. Also, a MF score was computed by summing the standardized values of both tests, and used to classify adults as fit or unfit. We also assessed fat mass, body mass index, waist-to-height ratio, and abdominal visceral fat, and categorized individuals as low and high fat using international cut-offs. A MetS cluster score was derived by calculating the sum of the sample-specific z-scores from the triglycerides, HDL cholesterol, fasting glucose, waist circumference, and arterial blood pressure. Linear regression models were used to examine whether the association between MF and MetS cluster was mediated by the fatness parameters. Data were collected from 2013 to 2016 and the analysis was done in 2016. Findings revealed that the best profiles (fit + low fat) were associated with lower levels of the MetS clustering (p <0.001 in the four fatness parameters), compared with unfit and fat (unfit + high fat) counterparts. Linear regression models indicated a partial mediating effect for fatness parameters in the association of MF with MetS clustering. Our findings indicate that efforts to improve MF in young adults may decrease MetS risk partially through an indirect effect on improvements to adiposity levels. Thus, weight reduction should be taken into account as a complementary goal to improvements in MF within exercise programs. PMID:28296952

  10. Kinematic and Kinetic Profiles of Trunk and Lower Limbs during Baseball Pitching in Collegiate Pitchers

    Directory of Open Access Journals (Sweden)

    Masahiro Kageyama, Takashi Sugiyama, Yohei Takai, Hiroaki Kanehisa, Akira Maeda

    2014-12-01

    Full Text Available The purpose of this study was to clarify differences in the kinematic and kinetic profiles of the trunk and lower extremities during baseball pitching in collegiate baseball pitchers, in relation to differences in the pitched ball velocity. The subjects were 30 collegiate baseball pitchers aged 18 to 22 yrs, who were assigned to high- (HG, 37.4 ± 0.8 m·s-1 and low-pitched-ball-velocity groups (LG, 33.3 ± 0.8 m·s-1. Three-dimensional motion analysis with a comprehensive lower-extremity model was used to evaluate kinematic and kinetic parameters during baseball pitching. The ground-reaction forces (GRF of the pivot and stride legs during pitching were determined using two multicomponent force plates. The joint torques of hip, knee, and ankle were calculated using inverse-dynamics computation of a musculoskeletal human model. To eliminate any effect of variation in body size, kinetic and GRF data were normalized by dividing them by body mass. The maxima and minima of GRF (Fy, Fz, and resultant forces on the pivot and stride leg were significantly greater in the HG than in the LG (p < 0.05. Furthermore, Fy, Fz, and resultant forces on the stride leg at maximum shoulder external rotation and ball release were significantly greater in the HG than in the LG (p < 0.05. The hip abduction, hip internal rotation and knee extension torques of the pivot leg and the hip adduction torque of the stride leg when it contacted the ground were significantly greater in the HG than in the LG (p < 0.05. These results indicate that, compared with low-ball-velocity pitchers, high-ball-velocity pitchers can generate greater momentum of the lower limbs during baseball pitching.

  11. Spatial Awareness is Related to Moderate Intensity Running during a Collegiate Rugby Match

    Science.gov (United States)

    BEYER, KYLE S.; FUKUDA, DAVID H.; MIRAMONTI, AMELIA M.; HOFFMAN, MATTAN W.; WANG, RAN; LA MONICA, MICHAEL B.; RIFFE, JOSH J.; TANIGAWA, SATORU; STOUT, JEFFREY R.; HOFFMAN, JAY R.

    2016-01-01

    The purpose of the present study was to evaluate the relationship between spatial awareness, agility, and distance covered in global positioning system (GPS) derived velocity zone classifications during a collegiate rugby match. Twelve American collegiate rugby union players (mean±SD; age: 21.2±1.4 y; weight: 85.0±16.0 kg; 7 forwards & 5 backs) on a single team volunteered to participate in this investigation. The distances travelled at low (walking/jogging; sprinting; >5.0 m/s) were measured for each player using GPS sensors and normalized according to playing time during an official USA Rugby match. Spatial awareness was measured as visual tracking speed from one core session of a 3-dimensional multiple-object-tracking speed (3DMOTS) test (1.35±0.59 cm·sec-1). Agility was assessed utilizing the pro agility (5.05±0.28 sec) and t drill (10.62±0.39 sec). Analysis of variance revealed that athletes travelled the greatest distance during walking/jogging (39.5±4.5 m·min-1) and least distance during running/sprinting (4.9±3.5 m·min-1). Pearson product moment correlations revealed that only distance covered while cruising/striding (20.9±6.5 m·min-1) was correlated to spatial awareness (r=0.798, p=0.002). Agility did not correlate to distance covered at any velocity zone or spatial awareness. Spatial awareness, as determined by 3DMOTS, appears to be related to the moderate intensity movement patterns of rugby union athletes. PMID:27990222

  12. NUTRIENT INTAKES OF MEN AND WOMEN COLLEGIATE ATHLETES WITH DISORDERED EATING

    Directory of Open Access Journals (Sweden)

    Pamela S. Hinton

    2005-09-01

    Full Text Available The objective of this study was to assess the macro- and micronutrient intakes of men and women collegiate athletes with disordered eating behaviors and to compare the nutrient intakes of athletes with restrictive- versus binge-eating behaviors. National Collegiate Athletic Association (NCAA Division I University athletes (n = 232 were administered an anonymous, written questionnaire to compare nutrient intakes, desired weight change, and weight control behaviors in athletes with restrictive- (R and binge- (B eating behaviors to those in asymptomatic (A athletes. T-tests, χ2 statistic, and ANOVA were used to test for differences among disordered eating groups within genders (p < 0.05. Data are means ± standard error of the mean. Among men athletes, those with disordered eating consumed a smaller percentage of energy from carbohydrate compared to controls (R = 49.7 ± 1.5; B = 48.7 ± 2.3; A = 53.4 ± 0.7%. Among female athletes, those with disordered eating wanted to lose a greater percentage of their current body weight than did asymptomatic athletes (B = -6.1 ± 1.4; R = -6.7 ± 1.1; A = -3.7 ± 0.4%. Women who were classified with binge eating consumed significantly more alcohol than did controls (B = 6.8 ± 1.3; A = 3.9 ± 0.4 g alcohol per day. Athletes with disordered eating were more likely to report restricting their intake of carbohydrate and fat and using supplements to control their weight than asymptomatic athletes. Disordered eating was not associated with greater frequencies of inadequate micronutrient intake in either gender. Athletes with disordered eating may be at significantly greater risk for nutritional inadequacies than athletes who are asymptomatic due to macronutrient restriction and greater alcohol consumption

  13. Personal food systems of male collegiate football players: a grounded theory investigation.

    Science.gov (United States)

    Long, Doug; Perry, Christina; Unruh, Scott A; Lewis, Nancy; Stanek-Krogstrand, Kaye

    2011-01-01

    Factors that affect food choices include the physical and social environments, quality, quantity, perceived healthfulness, and convenience. The personal food choice process was defined as the procedures used by athletes for making food choices, including the weighing and balancing of activities of daily life, physical well-being, convenience, monetary resources, and social relationships. To develop a theoretical model explaining the personal food choice processes of collegiate football players. Qualitative study. National Collegiate Athletic Association Division II football program. Fifteen football players were purposefully sampled to represent various positions, years of athletic eligibility, and ethnic backgrounds. For text data collection, we used predetermined, open-ended questions. Data were analyzed using the constant comparison method. The athletes' words were used to label and describe their interactions and experiences with the food choice process. Member checks and an external audit were conducted by a qualitative methodologist and a nutrition specialist, and the findings were triangulated with the current literature to ensure trustworthiness of the text data. Time was the core category and yielded a cyclic graphic of a theoretical model for the food choice system. Planning hydration, macronutrient strategies, snacks, and healthful food choices emerged as themes. The athletes planned meals and snacks around their academic and athletic schedules while attempting to consume foods identified as healthful. Healthful foods were generally lower in fat but high in preferred macronutrients. High-protein foods were the players' primary goal; carbohydrate consumption was secondary. The athletes had established plans to maintain hydration. Professionals may use these findings to implement educational programs on food choices for football players.

  14. Comparison of static and dynamic balance among collegiate cricket, soccer and volleyball male players

    Directory of Open Access Journals (Sweden)

    P Ratan Khuman

    2014-01-01

    Full Text Available Background: Athletes from different sports requires balance control for their better performance depending on game type they involved. When prescribing balance exercises to athletes in different sports, it may be important to recognize performance variations. Objective: The objective of the present study was to compare the static and dynamic balance among collegiate cricket, soccer and volleyball male players. Materials and Methods: A total of 150 students, college level male players from five different colleges were requited for the study with purposive sampling. They were assigned into three different groups according to their types of sports, cricket n = 50, soccer n = 50, volleyball n = 50. The static and dynamic balance was assessed using flamingo balance test (FBT and star excursion balance test (SEBT in institutional based sports physiotherapy department. Results: Intra-group comparison for FBT and SEBT score shows no significance difference (P > 0.05. Multiple comparison of FBT and SEBT score between groups reveals significantly difference between cricket and soccer player (P = 0.000, between cricket and volleyball player (P = 0.000 and between soccer player and volleyball players (P = 0.000. FBT and SEBT score were significantly higher in soccer players than volleyball and cricketer were found to have the least score compared with soccer and volleyball players. Conclusion: There is significance difference in static and dynamic balance among collegiate cricket, soccer and volleyball male players. The soccer players demonstrate higher balance than volleyball players and the volleyball players have a higher balance than that of cricketers both statically and dynamically.

  15. Tracking changes in maximal oxygen consumption with the heart rate index in female collegiate soccer players.

    Science.gov (United States)

    Esco, Michael R; Snarr, Ronald L; Flatt, Andrew; Leatherwood, Matthew; Whittaker, Adam

    2014-09-29

    The purpose of this study was to determine if the HRindex Method (VO2max = [6 x HRindex - 5] x 3.5, where HRindex = HRmax/HRrest) was accurate for tracking changes in VO2max following 8-weeks of endurance training among collegiate female soccer players. Predicted VO2max via the HRindex Method and observed VO2max from a maximal exercise test on a treadmill were determined for a group of female soccer athletes (n = 15) before and following an 8-week endurance training protocol. The predicted (pVO2max) and observed (aVO2max) values were compared at baseline and within 1-week post-training. Change values (i.e., the difference between pre to post) for each variable were also determined and compared. There was a significant difference between aVO2max before (43.2 ± 2.8 ml·kg·min(-1)) and following (46.2 ± 2.1 ml·kg·min(-1)) the 8-week training program (p < 0.05). However, pVO2max did not significantly change following training (pre = 43.4 ± 4.6 ml·kg·min(-1), post = 42.9 ± 4.1 ml·kg·min(-1), p = 0.53). Furthermore, the correlation between the change in aVO2max and the change in pVO2max was trivial and non-significant (r = 0.30, p = 0.28). The HRindex Method does not appear to be suitable for predicting changes in VO2max following 8-weeks of endurance training in female collegiate soccer players.

  16. Monitoring changes in VO2max via the Polar FT40 in female collegiate soccer players.

    Science.gov (United States)

    Esco, Michael R; Snarr, Ronald L; Williford, Hank N

    2014-01-01

    This study was conducted to determine if the Polar FT40 could accurately track changes in maximal oxygen consumption (VO2max) in a group of female soccer players. Predicted VO2max (pVO2max) via the Polar FT40 and observed VO2max (aVO2max) from a maximal exercise test on a treadmill were determined for members of a collegiate soccer team (n = 20) before and following an 8-week endurance training protocol. Predicted (VO2max and aVO2max measures were compared at baseline and within 1 week post-training. Change values (i.e., the difference between pre to post) for each variable were also determined and compared. There was a significant difference in aVO2max (pre = 43.6 ± 2.4 ml · kg · min(-1), post = 46.2 ± 2.4 ml · kg · min(-1), P < 0.001) and pVO2max (pre = 47.3 ± 5.3 ml · kg · min(-1), post = 49.7 ± 6.2 ml · kg · min(-1), P = 0.009) following training. However, predicted values were significantly greater at each time point compared to observed values (P < 0.001 at pre and P = 0.008 at post). Furthermore, there was a weak correlation between the change in aVO2max and the change in pVO2max (r = 0.18, P = 0.45). The Polar FT40 does not appear to be a valid method for predicting changes in individual VO2max following 8 weeks of endurance training in female collegiate soccer players.

  17. Tracking Changes in Maximal Oxygen Consumption with the Heart Rate Index in Female Collegiate Soccer Players

    Directory of Open Access Journals (Sweden)

    Esco Michael R.

    2014-10-01

    Full Text Available The purpose of this study was to determine if the HRindex Method (VO2max = [6 x HRindex - 5] x 3.5, where HRindex = HRmax/HRrest was accurate for tracking changes in VO2max following 8-weeks of endurance training among collegiate female soccer players. Predicted VO2max via the HRindex Method and observed VO2max from a maximal exercise test on a treadmill were determined for a group of female soccer athletes (n = 15 before and following an 8-week endurance training protocol. The predicted (pVO2max and observed (aVO2max values were compared at baseline and within 1-week post-training. Change values (i.e., the difference between pre to post for each variable were also determined and compared. There was a significant difference between aVO2max before (43.2 ± 2.8 ml.kg.min-1 and following (46.2 ± 2.1 ml.kg.min-1 the 8-week training program (p < 0.05. However, pVO2max did not significantly change following training (pre = 43.4 ± 4.6 ml.kg.min-1, post = 42.9 ± 4.1 ml.kg.min-1, p = 0.53. Furthermore, the correlation between the change in aVO2max and the change in pVO2max was trivial and non-significant (r = 0.30, p = 0.28. The HRindex Method does not appear to be suitable for predicting changes in VO2max following 8-weeks of endurance training in female collegiate soccer players

  18. Effects of self-selected mass loss on performance and mood in collegiate wrestlers.

    Science.gov (United States)

    Marttinen, Risto H J; Judelson, Daniel A; Wiersma, Lenny D; Coburn, Jared W

    2011-04-01

    Wrestlers abruptly lose body mass before competition; however, the effects of "weight cutting" are poorly understood because of conflicting evidence. This study aimed to determine the effects of self-selected mass loss on precompetition mood, grip strength, and lower body power in collegiate wrestlers. Sixteen male collegiate wrestlers (age = 20 ± 2 years, height = 177.5 ± 7.2 cm) were weighed 10 days before (D-10) a competitive meet. Euhydrated subjects were administered the Brunel Mood Scale (BRUMS), tested on grip strength, and given a 30-second Wingate Anaerobic Power test to determine lower body power. Additional weigh-ins were conducted 6 (D-6) and 2 (D-2) days before competition. Subjects repeated the testing battery the day of competition (D-0). During the study, wrestlers self-selected the method and timing of mass loss. Wrestlers lost 0.0-8.1% of their body mass using exercise, caloric restriction, or fluid deprivation. Most mass loss occurred between D-2 and D-0 (mean ± SD, D-10 = 81.7 ± 18.2 kg, D-6 = 81.2 ± 17.8 kg, D-2 = 81.1 ± 18.5 kg, D-0 = 79.0 ± 19.2 kg). Wrestlers losing ≥ 4% body mass became significantly more confused (D-10 = 0 ± 0, D-0 = 3 ± 3); subjects losing less mass showed no difference in confusion. No significant differences existed across time for remaining BRUMS variables, grip strength, and Wingate variables. These results suggest that wrestlers self-select large, rapid mass loss that impairs aspects of psychological functioning without affecting grip strength or lower-body power.

  19. Defending Collegiality

    Science.gov (United States)

    Fischer, Michael

    2009-01-01

    In his provocatively titled recent book, "The No Asshole Rule: Building a Civilized Workplace and Surviving One That Isn't", Robert I. Sutton argues for zero tolerance of "bullies, creeps, jerks, weasels, tormentors, tyrants, serial slammers, despots, [and] unconstrained egomaniacs" in the workplace. These individuals systematically prey on their…

  20. Modificación en la composición corporal de jugadores de Hockey luego del período de preparación

    OpenAIRE

    Perrice, Constanza

    2009-01-01

    El presente estudio tiene como objetivo determinar la relación entre el tipo de alimentación y el cambio en la composición corporal en jugadores de hockey sobre césped masculino que integran el Seleccionado Bonaerense de primera división, luego del período de preparación del año 2009 y si se ve influenciado por el grado de información en el campo de la nutrición deportiva. A través del mismo se establece la variación en el porcentaje de masa magra y masa grasa, mediante medi...

  1. Evaluation of the BOD POD and leg-to-leg bioelectrical impedance analysis for estimating percent body fat in National Collegiate Athletic Association Division III collegiate wrestlers.

    Science.gov (United States)

    Dixon, Curt B; Deitrick, Ronald W; Pierce, Joseph R; Cutrufello, Paul T; Drapeau, Linda L

    2005-02-01

    The purpose of this study was to compare percent body fat (%BF) estimated by air displacement plethysmography (ADP) and leg-to-leg bioelectrical impedance analysis (LBIA) with hydrostatic weighing (HW) in a group (n = 25) of NCAA Division III collegiate wrestlers. Body composition was assessed during the preseason wrestling weight certification program (WCP) using the NCAA approved methods (HW, 3-site skinfold [SF], and ADP) and LBIA, which is currently an unaccepted method of assessment. A urine specific gravity less than 1.020, measured by refractometry, was required before all testing. Each subject had all of the assessments performed on the same day. LBIA measurements (Athletic mode) were determined using a Tanita body fat analyzer (model TBF-300A). Hydrostatic weighing, corrected for residual lung volume, was used as the criterion measurement. The %BF data (mean +/- SD) were LBIA (12.3 +/- 4.6), ADP (13.8 +/- 6.3), SF (14.2 +/- 5.3), and HW (14.5 +/- 6.0). %BF estimated by LBIA was significantly (p < 0.01) smaller than HW and SF. There were no significant differences in body density or %BF estimated by ADP, SF, and HW. All methods showed significant correlations (r = 0.80-0.96; p < 0.01) with HW. The standard errors of estimate (SEE) for %BF were 1.68, 1.87, and 3.60%; pure errors (PE) were 1.88, 1.94, and 4.16% (ADP, SF, and LBIA, respectively). Bland-Atman plots for %BF demonstrated no systematic bias for ADP, SF, and LBIA when compared with HW. These preliminary findings support the use of ADP and SF for estimating %BF during the NCAA WCP in Division III wrestlers. LBIA, which consistently underestimated %BF, is not supported by these data as a valid assessment method for this athletic group.

  2. Attitude and knowledge changes in collegiate dancers following a short-term, team-centered prevention program on eating disorders.

    Science.gov (United States)

    Torres-McGehee, Toni M; Green, James M; Leaver-Dunn, Deidre; Leeper, James D; Bishop, Phillip A; Richardson, Mark T

    2011-06-01

    Eating knowledge, nutritional knowledge, and psychological changes among female collegiate dancers were examined before and after a 4-wk. team-centered program on sport nutrition, exercise, and disordered eating consequences. Collegiate female dancers from two NCAA Division I institutions participated in a control (n = 19; M age = 19.1 yr., SD = 1.0) or intervention (n = 21; M age = 19.2 yr., SD = 1.2) group. Measures were administered to both groups before and after intervention to assess eating disorders, depression, and nutritional and disordered eating knowledge. There was a statistically significant increase in scores on nutritional and overall eating disorder knowledge in the intervention group compared to the control group. Mean scores on depression, drive for thinness, body dissatisfaction, and maturity fears decreased in the intervention group.

  3. Critical velocity: a predictor of 2000-m rowing ergometer performance in NCAA D1 female collegiate rowers.

    Science.gov (United States)

    Kendall, Kristina L; Smith, Abbie E; Fukuda, David H; Dwyer, Teddi R; Stout, Jeffrey R

    2011-06-01

    The aims of this study were to examine the use of the critical velocity test as a means of predicting 2000-m rowing ergometer performance in female collegiate rowers, and to study the relationship of selected physiological variables on performance times. Thirty-five female collegiate rowers (mean ± s: age 19.3 ± 1.3 years; height 1.70 ± 0.06 m; weight 69.5 ± 7.2 kg) volunteered to participate in the study. Rowers were divided into two categories based on rowing experience: varsity (more than 1 year collegiate experience) and novice (less than 1 year collegiate experience). All rowers performed two continuous graded maximal oxygen consumption tests (familiarization and baseline) to establish maximal oxygen uptake (VO(2max)), peak power output, and power output at ventilatory threshold. Rowers then completed a critical velocity test, consisting of four time-trials at various distances (400 m, 600 m, 800 m, and 1000 m) on two separate days, with 15 min rest between trials. Following the critical velocity test, rowers completed a 2000-m time-trial. Absolute VO(2max) was the strongest predictor of 2000-m performance (r = 0.923) in varsity rowers, with significant correlations also observed for peak power output and critical velocity (r = 0.866 and r = 0.856, respectively). In contrast, critical velocity was the strongest predictor of 2000-m performance in novice rowers (r = 0.733), explaining 54% of the variability in performance. These findings suggest the critical velocity test may be more appropriate for evaluating performance in novice rowers.

  4. A Drumming Dance: A Study on the Effects of West African Dance on Motor Performance and Motivation among Collegiate Dancers

    OpenAIRE

    Wajid-Ali, Darlisa Gloria

    2016-01-01

    Changes in cardiovascular health, balance, agility, and motivation were assessed during a 6-week West African dance and live drumming intervention with collegiate dancers. The study measured cardiovascular health with the Accelerated 3-Minute Step test, balance with the m/r Star Excursion Balance test, and agility with the Illinois Agility test. Motivation was measured using the Classroom Life Measure, Motivated Strategies Learning Questionnaire, and the Rosenberg Self-Esteem Scale. The inter...

  5. Assurance of Learning in an MBA Program: Exploration of the Value Added by the Graduate Major Field Test in Business

    Science.gov (United States)

    Kass, Darrin; Grandzol, Christian

    2014-01-01

    The use of standardized tests as a piece of outcomes assessment has risen in recent years in order to satisfy external accrediting bodies such as the Association to Advance Collegiate Schools of Business International. The authors explore the value added by the Graduate Major Field Test in Business (GMFT-B) for assurance of learning in a master of…

  6. Relationship of Two Vertical Jumping Tests to Sprint and Change of Direction Speed among Male and Female Collegiate Soccer Players

    Directory of Open Access Journals (Sweden)

    Isaiah T. McFarland

    2016-02-01

    Full Text Available In collegiate level soccer acceleration, maximal velocity and agility are essential for successful performance. Power production is believed to provide a foundation for these speed qualities. The purpose of this study was to determine the relationship of change of direction speed, acceleration, and maximal velocity to both the counter movement jump (CMJ and squat jump (SJ in collegiate soccer players. Thirty-six NCAA Division II soccer players (20 males and 16 females were tested for speed over 10 and 30 m, CODS (T-test, pro agility and power (CMJ, SJ. Independent t-tests (p ≤ 0.05 were used to derive gender differences, and Pearson’s correlations (p ≤ 0.05 calculated relationships between the different power and speed tests. Female subjects displayed moderate-to-strong correlations between 30 m, pro agility and T-test with the CMJ (r = −0.502 to −0.751, and SJ (r = −0.502 to −0.681. Moderate correlations between 10 and 30 m with CMJ (r = −0.476 and −0.570 and SJ (r = −0.443 and −0.553, respectively were observed for males. Moderate to strong relationships exist between speed and power attributes in both male and female collegiate soccer players, especially between CMJ and maximal velocity. Improving stretch shortening cycle (SSC utilization may contribute to enhanced sport-specific speed.

  7. Physical Differences Between Forwards and Backs in American Collegiate Rugby Players.

    Science.gov (United States)

    La Monica, Michael B; Fukuda, David H; Miramonti, Amelia A; Beyer, Kyle S; Hoffman, Mattan W; Boone, Carleigh H; Tanigawa, Satoru; Wang, Ran; Church, David D; Stout, Jeffrey R; Hoffman, Jay R

    2016-09-01

    La Monica, MB, Fukuda, DH, Miramonti, AA, Beyer, KS, Hoffman, MW, Boone, CH, Tanigawa, S, Wang, R, Church, DD, Stout, JR, and Hoffman, JR. Physical differences between forwards and backs in American collegiate rugby players. J Strength Cond Res 30(9): 2382-2391, 2016-This study examined the anthropometric and physical performance differences between forwards and backs in a championship-level American male collegiate rugby team. Twenty-five male rugby athletes (mean ± SD; age 20.2 ± 1.6 years) were assessed. Athletes were grouped according to position as forwards (n = 13) and backs (n = 12) and were evaluated on the basis of anthropometrics (height, weight, percent body fat [BF%]), cross-sectional area (CSA), muscle thickness (MT), and pennation angle (PA) of the vastus lateralis (VL), maximal strength (1 repetition maximum [1RM] bench press and squat), vertical jump power, midthigh pull (peak force [PF] and peak rate of force development [PRFD]), maximal aerobic capacity (V[Combining Dot Above]O2peak), agility (pro agility, T test), speed (40-m sprint), and a tethered sprint (peak velocity [PV], time to peak velocity, distance covered, and step rate and length). Comparisons between forwards and backs were analyzed using independent t-tests with Cohen's d effect size. Forwards were significantly different from backs for body weight (90.5 ± 12.4 vs. 73.7 ± 7.1 kg, p < 0.01; d = 1.60), BF% (12.6 ± 4.2 vs. 8.8 ± 2.1%, p ≤ 0.05; d = 1.10), VL CSA (38.3 ± 9.1 vs. 28.7 ± 4.7 cm, p < 0.01; d = 1.26), 1RM bench press (121.1 ± 30.3 vs. 89.5 ± 20.4 kg, p ≤ 0.05; d = 1.17), 1RM squat (164.6 ± 43.0 vs. 108.5 ± 31.5 kg, p < 0.01; d = 1.42), PF (2,244.6 ± 505.2 vs. 1,654.6 ± 338.8 N, p < 0.01; d = 1.32), PV (5.49 ± 0.25 vs. 5.14 ± 0.37 m·s, p ≤ 0.05; d = 1.04), and step length (1.2 ± 0.1 vs. 1.1 ± 0.1 m, p ≤ 0.05; d = 0.80). V[Combining Dot Above]O2peak was significantly (p ≤ 0.05, d = -1.20) higher in backs (54.9 ± 3.9 ml·kg·min) than in forwards

  8. Sonographic evaluation of supraspinatus cross-sectional area in collegiate baseball players.

    Science.gov (United States)

    Malanga, Gerard A; Chu, Samuel K; Ramirez Del Toro, Jose; Karnaugh, Ronald D; Dentico, Richard; Komaroff, Eugene

    2012-07-01

    To establish the normal thickness of the supraspinatus tendon in collegiate baseball players with the use of ultrasound and to determine whether there are any significant differences between the dominant and nondominant supraspinatus thickness. A cross-sectional observational study. An outpatient clinical setting. Twelve healthy, asymptomatic collegiate pitchers between the ages of 19 and 22 years. Sonographic evaluation of 12 asymptomatic pitchers (9 right-hand dominant and 3 left-hand dominant) between the ages of 19 and 22 years was performed in a transverse plane (short axis) and longitudinal view (long axis) of their right and left shoulders. Maximum thickness was measured in both the long- and short-axis views. On the long-axis view, measurement was taken at the point where there was maximal height observed at the footprint insertion. Mixed-model analysis of variance was used to test for differences in tendon thickness across factors. Post hoc contrasts were performed with a Tukey adjustment for the P values. The mean ± SD values, side-to-side difference, and difference between dominant and nondominant values were calculated and statistically analyzed for differences. An ultrasound examination showed a significant 3-way interaction (P = .038) for view by side of hand dominance. Post hoc contrasts revealed that supraspinatus tendon thickness for right-handed pitchers in the long-axis view on the right side showed a mean value of 8.0 ± 0.32 mm versus the long-axis view on the left side of 6.5 ± 0.34 mm (P = .006) and the short-axis view on the right of 7.4 ± 0.40 mm versus the short-axis view on the left of 6.1 ± 0.26 mm (P = .036). Supraspinatus tendon thickness for left-handed pitchers in the long-axis view on the left side showed a mean value of 7.5 ± 0.59 mm versus the long-axis view on the right side of 5.9 ± 0.56 mm (P = .137) and the short-axis view on the left of 6.5 ± 0.45 mm versus the short-axis view on the right of 6.5 ± 0.68 mm (P = .999

  9. Return to football and long-term clinical outcomes after thumb ulnar collateral ligament suture anchor repair in collegiate athletes.

    Science.gov (United States)

    Werner, Brian C; Hadeed, Michael M; Lyons, Matthew L; Gluck, Joshua S; Diduch, David R; Chhabra, A Bobby

    2014-10-01

    To evaluate return to play after complete thumb ulnar collateral ligament (UCL) injury treated with suture anchor repair for both skill position and non-skill position collegiate football athletes and report minimum 2-year clinical outcomes in this population. For this retrospective study, inclusion criteria were complete rupture of the thumb UCL and suture anchor repair in a collegiate football athlete performed by a single surgeon who used an identical technique for all patients. Data collection included chart review, determination of return to play, and Quick Disabilities of the Arm, Shoulder, and Hand (QuickDASH) outcomes. A total of 18 collegiate football athletes were identified, all of whom were evaluated for follow-up by telephone, e-mail, or regular mail at an average 6-year follow-up. Nine were skill position players; the remaining 9 played in nonskill positions. All players returned to at least the same level of play. The average QuickDASH score for the entire cohort was 1 out of 100; QuickDASH work score, 0 out of 100; and sport score, 1 out of 100. Average time to surgery for skill position players was 12 days compared with 43 for non-skill position players. Average return to play for skill position players was 7 weeks postoperatively compared with 4 weeks for non-skill position players. There was no difference in average QuickDASH overall scores or subgroup scores between cohorts. Collegiate football athletes treated for thumb UCL injuries with suture anchor repair had quick return to play, reliable return to the same level of activity, and excellent long-term clinical outcomes. Skill position players had surgery sooner after injury and returned to play later than non-skill position players, with no differences in final level of play or clinical outcomes. Management of thumb UCL injuries in collegiate football athletes can be safely and effectively tailored according to the demands of the player's football position. Therapeutic IV. Copyright © 2014

  10. Effect of compensatory acceleration training in combination with accommodating resistance on upper body strength in collegiate athletes

    Directory of Open Access Journals (Sweden)

    Jones MT

    2014-08-01

    Full Text Available Margaret T Jones Sports Medicine Assessment, Rehabilitation, and Testing Laboratory, School of Recreation, Health, and Tourism, George Mason University, Manassas, VA, USA Purpose: To determine the impact of inclusion of a band or chain compensatory acceleration training (CAT, in a 5-week training phase, on maximal upper body strength during a 14-week off-season strength and conditioning program for collegiate male athletes. Patients and methods: Twenty-four National Collegiate Athletic Association (NCAA collegiate baseball players, who were familiar with the current strength and conditioning program and had a minimum of 1 year of formal collegiate strength and conditioning experience, participated in this off-season training study. None of the men had participated in CAT before. Subjects were matched following a maximal effort (1-repetition maximum [1-RM] bench press test in week 1, then were randomly assigned into a band-based CAT group or a chain-based CAT group and participated in a 5-week training phase that included bench pressing twice per week. Upper body strength was measured by 1-RM bench press again at week 6. A 2 × 2 mixed factorial (method × time analysis of variance was calculated to compare differences across groups. The alpha level was set at P<0.05. Results: No difference (F1,22=0.04, P=0.84 existed between the band-based CAT and chain-based CAT groups. A significant difference was observed between pre- and posttests of 1-RM bench (F1,22=88.46, P=0.001. Conclusion: A 5-week band CAT or chain CAT training program used in conjunction with an off-season strength and conditioning program can increase maximal upper body strength in collegiate baseball athletes. Using band CAT and/or chain CAT as a training modality in the off-season will vary the training stimulus from the traditional and likely help to maintain the athlete's interest. Keywords: variable resistance, band, baseball, chain, resistance training

  11. Motivations associated with non-disclosure of self-reported concussions in former collegiate athletes

    Science.gov (United States)

    Kerr, Zachary Y.; Register-Mihalik, Johna K.; Kroshus, Emily; Baugh, Christine M.; Marshall, Stephen W.

    2016-01-01

    Background Previous studies examining non-disclosure among athletes in various settings have found substantial proportions of athletes with undisclosed concussions. Substantial gaps exist in our understanding of the factors influencing athletes’ disclosure of sports-related concussions. Hypothesis/Purpose This cross-sectional study examined prevalence of, and factors associated with, non-disclosure of recalled concussions in former collegiate athletes. Study Design Cross-sectional survey. Methods Former collegiate athletes (n=797) completed an online questionnaire. Respondents recalled self-identified sports-related concussions (SISRC) that they sustained while playing sports in high school, college, or professionally, and whether they disclosed these SISRC to others. Respondents also recalled motivations for non-disclosure. We computed the prevalence of non-disclosure among those who recalled SISRC. Multivariate binomial regression estimated adjusted prevalence ratios (PR) with 95% confidence intervals (CI) controlling for sex, level of contact in sport, and year began playing college sports. Results Two-hundred-and-fourteen (26.9%) respondents reported sustaining at least one SISRC. Of these, 71 (33.2%) reported not disclosing at least one SISRC. Former football athletes were most likely to report non-disclosure (68.3% of those recalling SISRC); female athletes who participated in low/non-contact sports were the least likely to report non-disclosure (11.1% of those recalling SISRC). The prevalence of non-disclosure was higher among males than females in the univariate analysis, (PR=2.88; 95%CI: 1.62, 5.14) multivariate analysis (PR=2.11; 95%CI: 1.13, 3.96), and multivariate analysis excluding former football athletes (PR=2.11; 95%CI: 1.12, 3.94). The most commonly reported motivations included: did not want to leave the game/practice (78.9)%; did not want to let the team down (71.8%); did not know it was a concussion (70.4%); and did not think it was serious

  12. Echocardiographic and Blood Pressure Characteristics of First-Year Collegiate American-Style Football Players.

    Science.gov (United States)

    Crouse, Stephen F; White, Stephanie; Erwin, John P; Meade, Thomas H; Martin, Steven E; Oliver, Jonathan M; Joubert, Dustin P; Lambert, Bradley S; Bramhall, Joe P; Gill, Kory; Weir, David

    2016-01-01

    Echocardiographic (echo) and blood pressure (BP) reference values may help identify athletes at cardiovascular risk, yet benchmarks are inadequate for collegiate American-style football (ASF) players. Our purpose was to describe echo characteristics and BP values in collegiate ASF athletes compared with normal. First-year players (n = 80, age = 18 ± 1 years, height = 186 ± 7 cm, weight = 100.1 ± 22.0 kg, body mass index = 28.7 ± 5.0), body surface area [BSA] = 2.24 ± 0.25; percentage fat = 16.5 ± 9.7%) were measured for systolic and diastolic BP, and underwent echo procedures by a certified sonographer. Data analyses included simple statistics, Pearson r, frequencies in normal ranges, and t test; α = 0.05. Selected echo measurements (and indexed by BSA) were: left ventricular (LV) internal diameter diastole = 5.3 ± 0.5 cm (2.4 ± 0.3); left atrial diameter = 3.9 ± 0.5 cm (1.8 ± 0.2): LV end-diastolic volume = 138 ± 30 ml (62 ± 11); septal wall thickness = 1.0 ± 0.2 cm (0.5 ± 0.1); LV posterior wall thickness = 1.0 ± 0.1 cm (0.5 ± 0.1), LV mass = 212 ± 46 g (95 ± 18); and relative wall thickness = 0.39 ± 0.07. Correlations between BSA and echo variables were significant (r = 0.26 to 0.50). Indexing by BSA reduced percentages above reference ranges from 36% to 7%. Septal wall thickness index was significantly greater in black (0.5 ± 0.1) than nonblack (0.4 ± 0.1) athletes. Fifty-nine athletes were hypertensive or prehypertensive, and diastolic BP was significantly greater in black (76 ± 10 mm Hg) compared with nonblack athletes (71 ± 8 mm Hg). ASF athletes demonstrated LV wall thicknesses and cavity sizes consistent with sport-training hypertrophy but which were unremarkable when indexed by BSA. Ethnicity generally did not influence echo variables. No ASF players were identified with cardiac dysfunction or disease.

  13. Influence of Rest Intervals After Assisted Sprinting on Bodyweight Sprint Times in Female Collegiate Soccer Players.

    Science.gov (United States)

    Nealer, Austyn L; Dunnick, Dustin D; Malyszek, Kylie K; Wong, Megan A; Costa, Pablo B; Coburn, Jared W; Brown, Lee E

    2017-01-01

    Nealer, AL, Dunnick, DD, Malyszek, KK, Wong, MA, Costa, PB, Coburn, JW, and Brown, LE. Influence of rest intervals after assisted sprinting on bodyweight sprint times in female collegiate soccer players. J Strength Cond Res 31(1): 88-94, 2017-Speed is a crucial element an athlete must possess to be successful. In soccer, the ability to accelerate faster than your opponent can result in being first to reach a ball on a breakaway or stopping a counter attack. A unique way to train explosive movements is to evoke postactivation potentiation (PAP) in the working muscles. Traditionally, an overload stimulus with a long rest period is used, but a model using an overspeed stimulus with shorter rest periods is less understood. Therefore, the purpose of this study was to determine the acute effects of varied rest intervals after assisted sprinting on bodyweight sprint time. Twenty-four female soccer players were split into 2 groups: recreational (n:11; age:20 ± 1.67 year; ht:162.30 ± 4.35 cm; mass:61.02 ± 8.78 kg) and collegiate athletes (n:13; age:19.76 ± 0.83 year; ht:166.85 ± 5.98 cm; mass:61.23 ± 3.77 kg). All participants attended 5 separate sessions, performed a dynamic warm up, then executed one 20 m sprint (with 5 m splits) at 30% bodyweight assistance (BWA). They then rested for 30 seconds, 1, 2, or 4 minutes in random order, followed by one bodyweight sprint with no BWA. Baseline sprint times were measured without BWA on the initial session of testing. Results revealed no difference in sprint time for the full 20 m distance in either group. However, sprint time was significantly decreased for the 0-5 m split only for the athletes after 1 minute (1.15 ± 0.06 second) and 2 minute (1.16 ± 0.06 second) rest compared with baseline (1.21 ± 0.04 second). Therefore, trained athletes should rest 1 or 2 minutes after 30% BWA supramaximal sprinting for increased bodyweight sprint speed.

  14. Epidemiology of National Collegiate Athletic Association Women's Gymnastics Injuries, 2009–2010 Through 2013–2014

    Science.gov (United States)

    Kerr, Zachary Y.; Hayden, Ross; Barr, Megan; Klossner, David A.; Dompier, Thomas P.

    2015-01-01

    Context Recent injury-surveillance data for collegiate-level women's gymnastics are limited. In addition, researchers have not captured non–time-loss injuries (ie, injuries resulting in restriction of participation gymnastics injuries during the 2009–2010 through 2013–2014 academic years. Design Descriptive epidemiology study. Setting Aggregate injury and exposure data collected from 11 women's gymnastics programs providing 28 seasons of data. Patients or Other Participants Collegiate student-athletes participating in women's gymnastics during the 2009–2010 through 2013–2014 academic years. Intervention(s) Women's gymnastics data from the NCAA Injury Surveillance Program (ISP) during the 2009–2010 through 2013–2014 academic years were analyzed. Main Outcome Measure(s) Injury rates; injury rate ratios; injury proportions by body site, diagnosis, and apparatus; and injury proportion ratios were reported with 95% confidence intervals (CIs). Results The ISP captured 418 women's gymnastics injuries, a rate of 9.22/1000 athlete-exposures (AEs; 95% CI = 8.33, 10.10). The competition injury rate (14.49/1000 AEs) was 1.67 times the practice injury rate (8.69/1000 AEs; 95% CI = 1.27, 2.19). When considering time-loss injuries only, the injury rate during this study period (3.62/1000 AEs) was lower than rates reported in earlier NCAA ISP surveillance data. Commonly injured body sites were the ankle (17.9%, n = 75), lower leg/Achilles tendon (13.6%, n = 57), trunk (13.4%, n = 56), and foot (12.4%, n = 52). Common diagnoses were ligament sprain (20.3%, n = 85) and muscle/tendon strain (18.7%, n = 78). Overall, 12.4% (n = 52) of injuries resulted in time loss of more than 3 weeks. Of the 291 injuries reported while a student-athlete used an apparatus (69.6%), most occurred during the floor exercise (41.9%, n = 122) and on the uneven bars (28.2%, n = 82). Conclusions We observed a lower time-loss injury rate for women's gymnastics than shown in earlier NCAA ISP

  15. Epidemiology of National Collegiate Athletic Association Women's Gymnastics Injuries, 2009-2010 Through 2013-2014.

    Science.gov (United States)

    Kerr, Zachary Y; Hayden, Ross; Barr, Megan; Klossner, David A; Dompier, Thomas P

    2015-08-01

    Recent injury-surveillance data for collegiate-level women's gymnastics are limited. In addition, researchers have not captured non-time-loss injuries (ie, injuries resulting in restriction of participation gymnastics injuries during the 2009-2010 through 2013-2014 academic years. Descriptive epidemiology study. Aggregate injury and exposure data collected from 11 women's gymnastics programs providing 28 seasons of data. Collegiate student-athletes participating in women's gymnastics during the 2009-2010 through 2013-2014 academic years. Women's gymnastics data from the NCAA Injury Surveillance Program (ISP) during the 2009-2010 through 2013-2014 academic years were analyzed. Injury rates; injury rate ratios; injury proportions by body site, diagnosis, and apparatus; and injury proportion ratios were reported with 95% confidence intervals (CIs). The ISP captured 418 women's gymnastics injuries, a rate of 9.22/1000 athlete-exposures (AEs; 95% CI = 8.33, 10.10). The competition injury rate (14.49/1000 AEs) was 1.67 times the practice injury rate (8.69/1000 AEs; 95% CI = 1.27, 2.19). When considering time-loss injuries only, the injury rate during this study period (3.62/1000 AEs) was lower than rates reported in earlier NCAA ISP surveillance data. Commonly injured body sites were the ankle (17.9%, n = 75), lower leg/Achilles tendon (13.6%, n = 57), trunk (13.4%, n = 56), and foot (12.4%, n = 52). Common diagnoses were ligament sprain (20.3%, n = 85) and muscle/tendon strain (18.7%, n = 78). Overall, 12.4% (n = 52) of injuries resulted in time loss of more than 3 weeks. Of the 291 injuries reported while a student-athlete used an apparatus (69.6%), most occurred during the floor exercise (41.9%, n = 122) and on the uneven bars (28.2%, n = 82). We observed a lower time-loss injury rate for women's gymnastics than shown in earlier NCAA ISP surveillance data. Safety initiatives in women's gymnastics, such as "sting mats," padded equipment, and a redesigned vault table

  16. Staffing Levels at National Collegiate Athletic Association Football Bowl Subdivision-Level Institutions

    Science.gov (United States)

    MS, Suzie Aparicio; Welch Bacon, Cailee E.; Parsons, John T.; Bay, R. Curtis; Cohen, Randy P.; DeZeeuw, Terry; McLeod, Tamara C. Valovich

    2015-01-01

    Context The “Appropriate Medical Coverage for Intercollegiate Athletics” (AMCIA) document was created to support assessment and calculation of athletic training personnel requirements. However, little is known regarding disparities between current and recommended staffing practices. Objective To identify the staffing and employment characteristics of athletic health care services at Football Bowl Subdivision-level institutions. Design Cross-sectional study. Setting Web-based survey. Patients or Other Participants Head athletic trainers and athletic training staff members who were knowledgeable about budget and staff. Main Outcome Measure(s) The survey, Assessment of Staffing Levels at National Collegiate Athletic Association Football Bowl Subdivision-Level Institutions, was used to evaluate personal, university, and staff demographics; staffing and employment topics; and AMCIA variables and use. Results The survey was accessed and partially completed by 104 individuals (response rate = 84.6%). A total of 79 athletic trainers (response rate = 76%) completed the entire survey. One-third of the respondents (34.2%, n = 26) met the recommended number of full-time equivalents (FTEs) for football, two-thirds of the respondents (65.7%, n = 50) failed to meet the recommendation, and 26.2% (n = 27) were missing data needed for FTE calculation. Among those who did not meet the recommended FTEs (n = 50), 38.0% (n = 19) were within 1 FTE of being compliant, 26.0% (n = 13) were within 2 FTEs, and 24.0% (n = 12) were within 3 FTEs. About one-third of respondents (35.9%, n = 37) reported not using the AMCIA, citing lack of funding (29.7%, n = 11), lack of administrative support (21.6%, n = 8), and other reasons (37.8%, n = 14). Conclusions The majority of institutions that used the AMCIA were able to provide justification for staffing. For most of the institutions that failed to meet their recommendation, adding 1–3 FTE athletic trainers for football would change their

  17. The relationship between Taekwondo training habits and injury: a survey of a collegiate Taekwondo population

    Directory of Open Access Journals (Sweden)

    Covarrubias N

    2015-04-01

    Full Text Available Natalia Covarrubias,1 Subir Bhatia,2 Luis F Campos,3 Dahn V Nguyen,2,3 Eric Y Chang1,4,51Department of Physical Medicine and Rehabilitation, University of California Irvine, Irvine, CA, USA; 2School of Medicine, University of California Irvine, Irvine, CA, USA; 3Institute for Clinical and Translational Science, Irvine, CA, USA; 4Department of Anesthesiology and Perioperative Care, University of California Irvine, Irvine, CA, USA; 5Reeve-Irvine Research Center, Irvine, CA, USA Objective: To correlate training habits of Taekwondo (TKD athletes to risk for injury. Background: TKD is a Korean marital art that has been growing in popularity, with nearly 2 million individuals practicing the sport in the United States. Because of the combative nature of the sport, injuries are an inherent risk. However, data on proper training habits, types of injuries sustained during training, and recommendations for athletes to avoid injury are lacking. Frequently, studies of TKD evaluate athletes’ injuries during tournaments, but most do not evaluate athletes in training. Hypothesis: Increased training would potentially create more injuries secondary to increased exposure. Methods: This is a cross-sectional observational survey of 72 collegiate TKD athletes from the Pacific West Sanctioned Taekwondo Tournaments in the 2008–2009 season. Variables analyzed during training and competitions were training sessions per week, workout habits, belt level, years of experience, and characteristics of injury (location, type, mechanism, situation, treatment, and days missed. Results: TKD training habits of individuals who practiced four or more times per week (odds ratio [OR], 4.5; P=0.005 or sparred for more than 2 hours (OR, 8.7; P=0.003 were associated with significantly increased odds (risk of sustaining an injury. Those who had more than 3 years of tournament experience were more likely to sustain an injury (OR, 0.198; P=0.020. Conclusion: Increased risk for injury

  18. Predicting maximal aerobic capacity (VO2max) from the critical velocity test in female collegiate rowers.

    Science.gov (United States)

    Kendall, Kristina L; Fukuda, David H; Smith, Abbie E; Cramer, Joel T; Stout, Jeffrey R

    2012-03-01

    The objective of this study was to examine the relationship between the critical velocity (CV) test and maximal oxygen consumption (VO2max) and develop a regression equation to predict VO2max based on the CV test in female collegiate rowers. Thirty-five female (mean ± SD; age, 19.38 ± 1.3 years; height, 170.27 ± 6.07 cm; body mass, 69.58 ± 0.3 1 kg) collegiate rowers performed 2 incremental VO2max tests to volitional exhaustion on a Concept II Model D rowing ergometer to determine VO2max. After a 72-hour rest period, each rower completed 4 time trials at varying distances for the determination of CV and anaerobic rowing capacity (ARC). A positive correlation was observed between CV and absolute VO2max (r = 0.775, p < 0.001) and ARC and absolute VO2max (r = 0.414, p = 0.040). Based on the significant correlation analysis, a linear regression equation was developed to predict the absolute VO2max from CV and ARC (absolute VO2max = 1.579[CV] + 0.008[ARC] - 3.838; standard error of the estimate [SEE] = 0.192 L·min(-1)). Cross validation analyses were performed using an independent sample of 10 rowers. There was no significant difference between the mean predicted VO2max (3.02 L·min(-1)) and the observed VO2max (3.10 L·min(-1)). The constant error, SEE and validity coefficient (r) were 0.076 L·min(-1), 0.144 L·min(-1), and 0.72, respectively. The total error value was 0.155 L·min(-1). The positive relationship between CV, ARC, and VO2max suggests that the CV test may be a practical alternative to measuring the maximal oxygen uptake in the absence of a metabolic cart. Additional studies are needed to validate the regression equation using a larger sample size and different populations (junior- and senior-level female rowers) and to determine the accuracy of the equation in tracking changes after a training intervention.

  19. Editorial Commentary: Helping Those Who Seek the Company of "Lord Stanley": Hockey Players and Hip Injuries Highlight the Current State and Future Challenges in Understanding, Treating, and Preventing Nonarthritic Hip Disease.

    Science.gov (United States)

    Christoforetti, John

    2016-09-01

    The state of the art in caring for athletic hip injuries requires comprehensive understanding of dynamic sport-specific biomechanical demands, accurate musculoskeletal diagnosis, and a mindset towards matching hip structure with functional demand at all levels of play. The sport of hockey presents a unique opportunity to review these fundamentals of modern management and illuminates the way towards future understanding of the cause of common nonarthritic hip conditions.

  20. Current health-related quality of life is lower in former Division I collegiate athletes than in non-collegiate athletes.

    Science.gov (United States)

    Simon, Janet E; Docherty, Carrie L

    2014-02-01

    College athletes participate in physical activity that may increase chronic stress and injury and induce overtraining. However, there is little known about how previous injuries that have occurred during college may limit current physical activity and/or decrease their subsequent health-related quality of life (HRQoL). To evaluate HRQoL in former United States National Collegiate Athletic Association Division I athletes and nonathletes with the Patient-Reported Outcomes Measurement Information System (PROMIS) and a demographics questionnaire. Cohort study (prognosis); Level of evidence, 2. The study sample was recruited through alumni databases at a large Midwestern university and consisted of 2 cohorts: (1) former Division I athletes and (2) nonathletes who participated in recreational activity, club sports, or intramurals while attending college. Participants answered a survey constructed with a web-based system. All individuals contacted were between the ages of 40 and 65 years. Study participants responded to the questions on the PROMIS scales for sleep, anxiety, depression, fatigue, pain interference, physical function, and satisfaction with participation in social roles. The PROMIS was developed to fill the void of HRQoL being evaluated by multiple instruments. An additional questionnaire was constructed to record demographic and exercise information. Initially, 1280 former Division I athletes and nonathletes were contacted; 638 surveys were returned (49.8%). Surveys eligible for analyses (71.6%) were completed by 232 former Division I athletes (mean age ± SD, 53.36 ± 7.11 years) and 225 nonathletes (mean age ± SD, 53.60 ± 6.79 years). Univariate analyses for the effect of group was significantly related to PROMIS scales for physical function, depression, fatigue, sleep disturbances, and pain interference (P < .05). The overall scores were significantly worse for the former Division I athletes than for the nonathletes on 5 of the 7 scales. In addition

  1. Descriptive Epidemiology of Collegiate Women's Basketball Injuries: National Collegiate Athletic Association Injury Surveillance System, 1988–1989 Through 2003–2004

    Science.gov (United States)

    Agel, Julie; Olson, David E; Dick, Randall; Arendt, Elizabeth A; Marshall, Stephen W; Sikka, Robby S

    2007-01-01

    Objective: To review 16 years of National Collegiate Athletic Association (NCAA) injury surveillance data for women's basketball and to identify potential areas for injury prevention initiatives. Background: The number of colleges participating in women's college basketball has grown over the past 25 years. The Injury Surveillance System (ISS) has enabled the NCAA to collect and report injury trends over an extended period of time. This has allowed certified athletic trainers and coaches to be more informed regarding injuries and to adjust training regimens to reduce the risk of injury. It also has encouraged administrators to make rule changes that attempt to reduce the risk of injury. Main Results: From 1988–1989 through 2003–2004, 12.4% of schools across Divisions I, II, and III that sponsor varsity women's basketball programs participated in annual ISS data collection. Game and practice injury rates exhibited significant decreases over the study period. The rate of injury in a game situation was almost 2 times higher than in a practice (7.68 versus 3.99 injuries per 1000 athlete-exposures, rate ratio = 1.9, 95% confidence interval = 1.9, 2.0). Preseason-practice injury rates were more than twice as high as regular-season practice injury rates (6.75 versus 2.84 injuries per 1000 athlete-exposures, rate ratio = 2.4, 95% confidence interval = 2.2, 2.4). More than 60% of all game and practice injuries were to the lower extremity, with the most common game injuries being ankle ligament sprains, knee injuries (internal derangements and patellar conditions), and concussions. In practices, ankle ligament sprains, knee injuries (internal derangements and patellar conditions), upper leg muscle-tendon strains, and concussions were the most common injuries. Recommendations: Appropriate preseason conditioning and an emphasis on proper training may reduce the risk of injury and can optimize performance. As both player size and the speed of the women's game continue to

  2. Descriptive Epidemiology of Collegiate Men's Football Injuries: National Collegiate Athletic Association Injury Surveillance System, 1988–1989 Through 2003–2004

    Science.gov (United States)

    Dick, Randall; Ferrara, Michael S; Agel, Julie; Courson, Ron; Marshall, Stephen W; Hanley, Michael J; Reifsteck, Fred

    2007-01-01

    Objective: To review 16 years of National Collegiate Athletic Association (NCAA) injury surveillance data for men's football and identify potential areas for injury prevention initiatives. Background: Football is a high-velocity collision sport in which injuries are expected. Football tends to have one of the highest injury rates in sports. Epidemiologic data helps certified athletic trainers and other clinicians identify injury trends and patterns to appropriately design and institute injury prevention protocols and then measure their effects. Main Results: During the 16-year reporting period, about 19% of the Division I, II, and III NCAA institutions sponsoring football participated in the Injury Surveillance System. The results from the 16-year study period show little variation in the injury rates over time: games averaged 36 injuries per 1000 athlete-exposures (A-Es); fall practice, approximately 4 injuries per 1000 A-Es; and spring practice, about 10 injuries per 1000 A-Es. The game injury rate was more than 9 times higher than the in-season practice injury rate (35.90 versus 3.80 injuries per 1000 A-Es, rate ratio = 9.1, 95% confidence interval = 9.0, 9.2), and the spring practice injury rate was more than 2 times higher than the fall practice injury rate (9.62 versus 3.80 injuries per 1000 A-Es, rate ratio = 2.5, 95% confidence interval = 2.5, 2.6). The rate ratio for games versus fall practices was greatest for upper leg contusions (18.1 per 1000 A-Es), acromioclavicular joint sprains (14.0 per 1000 A-Es), knee internal derangements (13.4 per 1000 A-Es), ankle ligament sprains (12.0 per 1000 A-Es), and concussions (11.1 per 1000 A-Es). Recommendations: Football is a complex sport that requires a range of skills performed by athletes with a wide variety of body shapes and types. Injury risks are greatest during games. Thus, injury prevention measures should focus on position-specific activities to reduce the injury rate. As equipment technology improves for

  3. Descriptive epidemiology of collegiate men's football injuries: National Collegiate Athletic Association Injury Surveillance System, 1988-1989 through 2003-2004.

    Science.gov (United States)

    Dick, Randall; Ferrara, Michael S; Agel, Julie; Courson, Ron; Marshall, Stephen W; Hanley, Michael J; Reifsteck, Fred

    2007-01-01

    To review 16 years of National Collegiate Athletic Association (NCAA) injury surveillance data for men's football and identify potential areas for injury prevention initiatives. Football is a high-velocity collision sport in which injuries are expected. Football tends to have one of the highest injury rates in sports. Epidemiologic data helps certified athletic trainers and other clinicians identify injury trends and patterns to appropriately design and institute injury prevention protocols and then measure their effects. During the 16-year reporting period, about 19% of the Division I, II, and III NCAA institutions sponsoring football participated in the Injury Surveillance System. The results from the 16-year study period show little variation in the injury rates over time: games averaged 36 injuries per 1000 athlete-exposures (A-Es); fall practice, approximately 4 injuries per 1000 A-Es; and spring practice, about 10 injuries per 1000 A-Es. The game injury rate was more than 9 times higher than the in-season practice injury rate (35.90 versus 3.80 injuries per 1000 A-Es, rate ratio = 9.1, 95% confidence interval = 9.0, 9.2), and the spring practice injury rate was more than 2 times higher than the fall practice injury rate (9.62 versus 3.80 injuries per 1000 A-Es, rate ratio = 2.5, 95% confidence interval = 2.5, 2.6). The rate ratio for games versus fall practices was greatest for upper leg contusions (18.1 per 1000 A-Es), acromioclavicular joint sprains (14.0 per 1000 A-Es), knee internal derangements (13.4 per 1000 A-Es), ankle ligament sprains (12.0 per 1000 A-Es), and concussions (11.1 per 1000 A-Es). Football is a complex sport that requires a range of skills performed by athletes with a wide variety of body shapes and types. Injury risks are greatest during games. Thus, injury prevention measures should focus on position-specific activities to reduce the injury rate. As equipment technology improves for the helmet, shoulder pads, and other protective

  4. The 'Granite' collegial mission of dialogue. Report; Mission collegiale de concertation Granite. Rapport

    Energy Technology Data Exchange (ETDEWEB)

    Boisson, P.; Huet, Ph.; Mingasson, J

    2000-06-01

    The aim of the 'Granite' collegial mission of dialogue is to inform the French authorities, associations and population about the project of construction of an underground laboratory for the study of the disposal of high level and long-life radioactive wastes in a granitic environment. The aim of the dialogue was not to select a site but to collect the public reactions and advices about such a project. However, such a dialogue has partially failed because of a misunderstanding of the population about the aims of the mission. However, the mission has collected many point of views and questions which are developed in this report. The first and second chapters recall the process of the mission and its progress, while a third chapter stresses on the questions asked by the public and which concern the fear of nuclear wastes and the incompatibility between the disposal of wastes and the socio-economical development of the region concerned. Thanks to the lessons drawn from this experience, the mission has formulated some recommendations (chapter 4) concerning the need for a better information of the population about any topic in relation with the radioactive wastes. Some complementary information is provided in appendixes. (J.S.)

  5. Frequency of head-impact-related outcomes by position in NCAA division I collegiate football players.

    Science.gov (United States)

    Baugh, Christine M; Kiernan, Patrick T; Kroshus, Emily; Daneshvar, Daniel H; Montenigro, Philip H; McKee, Ann C; Stern, Robert A

    2015-03-01

    Concussions and subconcussive impacts sustained in American football have been associated with short- and long-term neurological impairment, but differences in head impact outcomes across playing positions are not well understood. The American Medical Society for Sports Medicine has identified playing position as a key risk factor for concussion in football and one for which additional research is needed. This study examined variation in head impact outcomes across primary football playing positions in a group of 730 National Collegiate Athletic Association Division I Football Championship Series athletes, using a self-report questionnaire. Although there were no significant differences between position groups in the number of diagnosed concussions during the 2012 football season, there were significant differences between groups in undiagnosed concussions (p=0.008) and "dings" (pfootball season, with offensive linemen reporting significantly more symptoms compared to most other groups. There were also positional differences in frequency of returning to play while symptomatic (p<0.001) and frequency of participating in full-contact practice (p<0.001). Offensive linemen reported having returned to play while experiencing symptoms more frequently and participating in more full-contact practices than other groups. These findings suggest that offensive linemen, a position group that experiences frequent, but low-magnitude, head impacts, develop more postimpact symptoms than other playing positions, but do not report these symptoms as a concussion.

  6. Nutrient intake of highly competitive male and female collegiate karate players.

    Science.gov (United States)

    Teshima, Kaori; Imamura, Hiroyuki; Yoshimura, Yoshitaka; Nishimura, Seiji; Miyamoto, Noriko; Yamauchi, Yoichi; Hori, Hitoshi; Moriwaki, Chinatsu; Shirota, Tomoko

    2002-07-01

    Nutrient intake of 29 male (M Group) and 16 female (F Group) highly competitive collegiate karate players were compared. The results were also compared with the daily energy expenditure (DEE), Japanese recommended dietary allowances (RDAs) or adequate dietary intakes (ADIs). Dietary information was collected using a 3-weekday diet record. Although the M Group showed significantly higher mean %RDAs or %ADIs in iron, vitamin B1, phosphorus, magnesium, and sodium than the F Group, many of the mean %RDAs or %ADIs were below RDAs or ADIs in both groups. The subjects who skipped meals tended to show lower mean %DEE, Japanese %RDAs or %ADIs in minerals and vitamins than the subjects who did not skip in both M and F Groups. The consumption of green and other vegetables and milk and dairy products in both M and F Groups were low. It is concluded that the male and female highly competitive karate players studied in the present study may be at risk of sub-optimal nutrient intake, which increases the potential for nutrient deficiency. The subjects were advised not to skip meals, and to consume a balanced high-carbohydrate, moderate-protein, low-fat diet with increasing green and other vegetables and milk and dairy products to increase mineral, vitamin and dietary fiber intakes.

  7. Frequency of Head-Impact–Related Outcomes by Position in NCAA Division I Collegiate Football Players

    Science.gov (United States)

    Kiernan, Patrick T.; Kroshus, Emily; Daneshvar, Daniel H.; Montenigro, Philip H.; McKee, Ann C.; Stern, Robert A.

    2015-01-01

    Abstract Concussions and subconcussive impacts sustained in American football have been associated with short- and long-term neurological impairment, but differences in head impact outcomes across playing positions are not well understood. The American Medical Society for Sports Medicine has identified playing position as a key risk factor for concussion in football and one for which additional research is needed. This study examined variation in head impact outcomes across primary football playing positions in a group of 730 National Collegiate Athletic Association Division I Football Championship Series athletes, using a self-report questionnaire. Although there were no significant differences between position groups in the number of diagnosed concussions during the 2012 football season, there were significant differences between groups in undiagnosed concussions (p=0.008) and “dings” (pfootball season, with offensive linemen reporting significantly more symptoms compared to most other groups. There were also positional differences in frequency of returning to play while symptomatic (p<0.001) and frequency of participating in full-contact practice (p<0.001). Offensive linemen reported having returned to play while experiencing symptoms more frequently and participating in more full-contact practices than other groups. These findings suggest that offensive linemen, a position group that experiences frequent, but low-magnitude, head impacts, develop more postimpact symptoms than other playing positions, but do not report these symptoms as a concussion. PMID:25155288

  8. Nonfunctional overreaching during off-season training for skill position players in collegiate American football.

    Science.gov (United States)

    Moore, Christopher A; Fry, Andrew C

    2007-08-01

    The purpose of this study was to determine the performance and hormonal responses to a 15-week off-season training program for American football. Nine skill position players from a National Collegiate Athletic Association (NCAA) Division I-A football team participated as subjects in this study. Following 4 weeks of weight training (phase I), subjects performed weight training concurrently with high-volume conditioning drills (phase II). Phase III consisted of 15 spring football practice sessions executed over a 30-day period. Performance and hormonal changes were assessed prior to phase I, and following phases I, II, and III. Maximal strength was significantly increased (p Sprinting speed significantly worsened during phase I (p < 0.05), but then returned to baseline during phase III. Vertical jump and agility improved during phase I (p < 0.05), with vertical jump remaining unchanged for the duration of the study and agility returning to baseline following phase II. Testosterone levels decreased during phase II (p < 0.05) prior to returning to baseline levels during phase III. Cortisol and the testosterone/cortisol ratio remained unchanged during the course of the investigation. Even though overtraining did not occur in the current investigation, a significant maladaptation in performance did occur subsequent to phase II. For this particular athletic population, a strength and conditioning program utilizing a reduced training volume-load may prove more effective for improving performance in the future.

  9. Upper extremities flexibility comparisons of collegiate "soft" martial art practitioners with other athletes.

    Science.gov (United States)

    Huang, C-C; Yang, Y-H; Chen, C-H; Chen, T-W; Lee, C-L; Wu, C-L; Chuang, S-H; Huang, M-H

    2008-03-01

    The aim of this study was to compare the flexibility of the upper extremities in collegiate students involved in Aikido (a kind of soft martial art attracting youth) training with those involved in other sports. Fifty freshmen with a similar frequency of exercise were divided into the Aikido group (n = 18), the upper-body sports group (n = 17), and the lower-body sports group (n = 15) according to the sports that they participated in. Eight classes of range of motion in upper extremities were taken for all subjects by the same clinicians. The Aikido group had significantly better flexibility than the upper-body sports group except for range of motion in shoulder flexion (p = 0.22), shoulder lateral rotation (p > 0.99), and wrist extension (p > 0.99). The Aikido group also had significantly better flexibility than the lower-body sports group (p martial arts had good upper extremities flexibility that might not result from regular exercise alone.

  10. The effects of low fat chocolate milk on postexercise recovery in collegiate athletes.

    Science.gov (United States)

    Spaccarotella, Kim J; Andzel, Walter D

    2011-12-01

    Spaccarotella, KJ and Andzel, WD. The effects of low fat chocolate milk on postexercise recovery in collegiate athletes. J Strength Cond Res 25(12): 3456-3460, 2011-Drinking chocolate milk between exercise sessions may improve recovery. The purpose of this study was to examine the effects of low fat chocolate milk vs. a carbohydrate-electrolyte beverage (CE) on recovery between preseason practice sessions among 5 male and 8 female Division III soccer players. The study used a randomized crossover design: between morning and afternoon practices, athletes received either an amount of chocolate milk that provided 1 g carbohydrate per kilogram body weight or an equal volume of CE (mean volume of 615 ± 101 ml). After their afternoon practice, they completed a shuttle run to fatigue. Data were analyzed using the Wilcoxon paired rank-sign test (for shuttle run time) and the paired samples t-test (for dietary intake). No significant differences in run time were reported for the group. For the men only, there was a trend of increased time to fatigue with chocolate milk compared with the CE (exact p = 0.03). Low fat chocolate milk may therefore be as good as a CE at promoting recovery between training sessions during preseason.

  11. Effect of four different starting stances on sprint time in collegiate volleyball players.

    Science.gov (United States)

    Johnson, Trevor M; Brown, Lee E; Coburn, Jared W; Judelson, Daniel A; Khamoui, Andy V; Tran, Tai T; Uribe, Brandon P

    2010-10-01

    Starting stance plays an important role in influencing short-distance sprint speed and, therefore, the ability to reach a ball during sport play. The purpose of this study was to evaluate 4 different starting stances on sprint time. Twenty-six male and female collegiate volleyball players volunteered to participate in 1 testing session. Each subject performed 3 15-ft sprint trials at each of 4 different starting stances (P-parallel, FS-false step, S-staggered, and SFS-staggered false step) in random order. Analysis of variance revealed that there was no significant interaction of sex by stance, but there were main effects for sex (men were faster than women) and stance. The FS (1.18 ± 0.10 seconds), S (1.16 ± 0.07 seconds), and SFS (1.14 ± 0.06 seconds) stances were faster than the P (1.25 ± 0.09 seconds) stance, and the SFS stance was faster than the FS stance. This indicates that starting with a staggered stance (regardless of stepping back) produced the greatest sprinting velocity over the initial 15 feet. Although taking a staggered stance seems counterproductive, the resultant stretch-shortening cycle action and forward body lean likely increase force production of the push-off phase and place the total body center of mass ahead of the contacting foot, thereby, decreasing sprint time.

  12. National collegiate athletic association division I athletes' use of nonprescription medication.

    Science.gov (United States)

    Wolf, Douglas A; Miller, Thomas W; Pescatello, Linda S; Barnes, Christopher

    2011-01-01

    Athletes are known to use over-the-counter pain medication. However, the frequency of such use among National Collegiate Athletic Association (NCAA) Division I-A football athletes is unknown. NCAA Division I-A football athletes who use nonprescription analgesics for pain misuse these medications. Cross-sectional study. The football players (N, 144) who met the criteria and agreed to participate were from 8 NCAA Division I-A schools. The participants were administered the Over the Counter Drug Screen for Athletes, which measures attitudes toward the use of a spectrum of substances. Among football athletes surveyed who took nonprescription analgesics for football-related pain, 37% reported taking more than the recommended dose. This was slightly higher than the 28% of players who stated they have not taken nonprescription analgesics for football-related pain. Thirty-four percent of all athletes reported using more than the recommended dose of nonprescription analgesics. Athletes who purchased their own nonprescription analgesics communicated poorly regarding nonprescription analgesics use. Those lacking knowledge about nonprescription analgesics and those using nonprescription analgesics in anticipation of pain or to avoid missing a practice or game were most likely to misuse nonprescription analgesics. NCAA Division I-A football athletes who use nonprescription analgesics for athletic competition do not misuse nonprescription analgesics.

  13. Reactive Strength Index Modified Is a Valid Measure of Explosiveness in Collegiate Female Volleyball Players.

    Science.gov (United States)

    Kipp, Kristof; Kiely, Michael T; Geiser, Christopher F

    2016-05-01

    The purpose of this study was to investigate the validity of the reactive strength index modified (RSImod) as a measure of lower body explosiveness. Fifteen female, National Collegiate Athletic Association Division I volleyball players performed vertical countermovement jumps (CMJs) while standing on a force plate. Each player performed 3 CMJs. The vertical ground reaction forces collected during each jump were used to calculate jump height, time to take-off, time to peak force, peak force, peak rate of force development, and peak power; the latter 3 variables were all normalized to body mass. Reactive strength index modified was calculated as the ratio between jump height and time to take-off. All variables, except for jump height, were then entered a factor analysis, which reduced the input data into 2 factors: a force factor and a speed factor. Although RSImod loaded more strongly onto the force factor, further analysis showed that RSImod loaded positively onto both force and speed factors. Visual analysis of the Cartesian coordinates also showed that RSImod loaded into the quadrant of greater force and speed abilities. These results indicate that the construct of RSImod, as derived from CMJ force-time data, captures a combination of speed-force factors that can be interpreted as lower body explosiveness during the CMJ. Reactive strength index modified therefore seems to be a valid measure to study lower body explosiveness.

  14. Nutrient intake and blood iron status of male collegiate soccer players.

    Science.gov (United States)

    Noda, Yuka; Iide, Kazuhide; Masuda, Reika; Kishida, Reina; Nagata, Atsumi; Hirakawa, Fumiko; Yoshimura, Yoshitaka; Imamura, Hiroyuki

    2009-01-01

    The purpose of this study was: 1) to collect baseline data on nutrient intake in order to advise athletes about nutrition practices that might enhance performance, and 2) to evaluate the dietary iron intake and blood iron status of Japanese collegiate soccer players. The subjects were 31 soccer players and 15 controls. Dietary information was obtained with a food frequency questionnaire. The mean carbohydrate (6.9 g.kg-1 BW) and protein (1.3 g/kg) intakes of the soccer players were marginal in comparisons with recommended targets. The mean intakes of calcium, magnesium, vitamin A, B1, B2, and C were lower than the respective Japanese recommended dietary allowances (RDAs) or adequate dietary intakes in the soccer players. The mean intakes of green and other vegetables, milk and dairy products, fruits, and eggs were lower than the recommended targets. Thus, we recommended athletes to increase the intake of these foodstuffs along with slight increase in carbohydrate and lean meat. The mean intake of iron was higher than the respective RDA in the soccer players. A high prevalence of hemolysis (71%) in the soccer players was found. None of the soccer players and controls had anemia. Two soccer players had iron depletion, while none was found in the controls. In those players who had iron deficiency, the training load need to be lowered and/or iron intake may be increased.

  15. Professional collegiality and peer monitoring among nursing staff: An ethnographic study

    Science.gov (United States)

    Padgett, Stephen M.

    2013-01-01

    Background Patient safety and professional self-regulation systems both rely on professional colleagues to hold each other accountable for quality of care. Objectives To understand how staff nurses manage variations in practices within the group, and negotiate the rules-in-use for quality of care, collegiality, and accountability. Design/Methods Ethnographic case study; participant-observation, semi-structured interviews, policy analysis. Setting In-patient unit in an urban US teaching hospital. Results Explicit acknowledgement of conflicts and practice variations was perceived as risky to group cohesion. The dependence of staff on mutual assistance, and the absence of a system of group practice, led to the practice of “mutual deference”, a strategy of reciprocal tolerance and non-interference that gave wide discretion to each nurse’s decisions about care. Conclusions Efforts to improve professional accountability will need to address material constraints and the organization of nursing work, as well as communication and leadership skills. PMID:23332164

  16. Exploring relations of wellness and athletic coping skills of collegiate athletes: implications for sport performance.

    Science.gov (United States)

    von Guenthner, Shannon; Hammermeister, Jon

    2007-12-01

    In exploring the relationship between wellness and athletic performance, this study assessed the link between wellness, as defined by a high score on five wellness dimensions of emotional, social, spiritual, intellectual, and physical well-being, with psychological variables thought to be related to athletic performance as measured by athletes' self-report of specific athletic coping skills. 142 collegiate athletes completed a survey composed of the Optimal Living Profile to measure wellness dimensions and the Athletic Coping Skills Inventory to measure specific psychological variables. Analysis indicated that athletes scoring higher on the dimensions of wellness also scored significantly higher on athletic coping skills. Specifically, male athletes who scored higher on wellness also reported higher scores on coachability, concentration, goal setting/mental preparation, and peaking under pressure, and female athletes who scored higher on wellness also reported higher scores in coping with adversity, coachability, concentration, goal setting/mental preparation, and freedom from worry. Various dimensions of wellness seem related to better performance by involving the athletic coping skills of intercollegiate athletes. Implications for coaches and sport psychologists are also discussed.

  17. Comparative Study on the Training Mode of Chinese and Swedish Ice Hockey Reserve Talents%中国与瑞典冰球后备人才培养的比较研究

    Institute of Scientific and Technical Information of China (English)

    康建军

    2013-01-01

    Sweden is one of the best countries which develop ice hockey reserve talents .Its training mode of ice hockey reserve talents has positive effects on our country .The results indicate that there is a bigger gap between Chinese and Swedish ice hockey reserve talents .And the important factor is lack of strong mass ba-sis of ice hockey and a scientific and effective ice hockey reserve talents system .According to the situation, this paper puts up that Chinese ice hockey management should strengthen and improve the management sys -tem, establish the ice hockey reserve talents system which fit in with the needs of society and economic de -velopment, such as organized sports and education departments and social organizations which is investment subject with single or combinatorial properties the , and construct training system of multi -channel and dif-ferent forms.%  瑞典是冰球后备人才发展较好的国家之一,其冰球后备人才培养的模式对我国冰球后备人才的培养具有积极的借鉴作用。通过对文献、资料和相关数据的研究,从中国与瑞典两国冰球发展背景,后备人才梯队结构,后备人才培养方式,青少年运动员的储备,青少年运动员占人口的比例等几个方面分析我国与瑞典冰球后备人才的培养情况。结果表明,我国目前冰球后备人才的培养与冰球强国瑞典存在较大差距,其重要的因素在于我国缺乏雄厚冰球运动的群众基础和一个科学并行之有效的冰球后备人才培养体系。针对上述状况提出了我国冰球管理部门应加强和完善管理体制,尽快建立符合我国社会需要与经济发展的冰球后备人才培养机制。如,组织体育、教育部门及社会团体单独或组合性质的投资主体,构建多渠道、多形式的培养体系。

  18. High School Students' Understandings and Representations of the Electric Field

    CERN Document Server

    Cao, Ying

    2014-01-01

    This study investigates the understandings and representations of the electric field expressed by Chinese high school students ages 15 to 16 who have not yet received high school-level physics instruction. The literature has reported students' ideas of the electric field post-instruction as indicated by their performance on textbook-style questionnaires. However, by relying on measures such as questionnaires, previous research has inadequately captured the thinking process that led students to answer questions in the ways that they did. The present study portrays the beginning of this process by closely examining students' understandings pre-instruction. The participants in this study were asked to engage in a lesson that included informal group tasks that involved playing a Web-based hockey game that replicated an electric field and drawing comic strips that used charges as characters. The lesson was videotaped, students' work was collected, and three students were interviewed afterward to ascertain more det...

  19. ACL Injury, Return To Play And Reinjury In The Elite, Collegiate Athlete: An Analysis Of A Single, Division I NCAA Cohort

    Science.gov (United States)

    Kamath, Ganesh V.; Murphy, Timothy; Creighton, Robert A.; Taft, Timothy N.; Spang, Jeffrey T.

    2014-01-01

    Objectives: Graft survivorship, reinjury rates, and career length are poorly understood after ACL reconstruction in the elite, NCAA Division-I athlete. The purpose of this study was to examine the outcomes of ACL reconstruction in a Division-I athlete cohort. Methods: Retrospective chart review was performed of all Division-I athletes at a single, public university from 2000 to 2009 until completion of eligibility. Athletes with a Pre-collegiate (PC) and Intra-collegiate (IC) ACL reconstruction were separated into two cohorts. Graft survivorship, reoperation rates, and career length information was collected. Results: 35 athletes were identified with a pre-collegiate (PC) ACL reconstruction; 60 with an intra-collegiate (IC) reconstruction. The PC group had a 17.1% injury rate to the original graft, with a 20.0% rate of contralateral ACL injury. For the IC group, the reinjury rates were 1.9% to the ACL graft, with a 9.2% rate of contralateral ACL injury after an IntraCollegiate ACL reconstruction. The PC group used 78% of their total eligibility (avg 3.11 yrs). Athletes in the IC group used an average of 77% of their remaining NCAA eligibility. 88.3% of the IC group played an additional non-redshirt year after their injury. Reoperation rate for the PC group was 51.4% and 20.3% for the IC group. Conclusion: Reoperation and reinjury rates are high after ACL reconstruction in the Division-I athlete. Pre-collegiate ACL reconstruction is associated with a very high rate of repeat ACL reinjury to the graft or opposite knee (37.1%). The majority of athletes are able to return to play after successful reconstruction.

  20. Differential in Maximal Aerobic Capacity by Sex in Collegiate Endurance Athletes Consuming a Marginally Low Carbohydrate Diet.

    Science.gov (United States)

    Baranauskas, Marissa N; Miller, Brian; Olson, Jordan T; Boltz, Michelle; Richardson, Laura; Juravich, Matthew; Otterstetter, Ronald

    2017-07-01

    Although current sports nutrition recommendations advocate for a high carbohydrate (CHO) intake among endurance athletes, recent research has suggested that training with low CHO availability may augment adaptations to aerobic training. The purpose of this study was to observe the dietary habits of collegiate distance runners and to investigate the effects of habitual CHO intake on aerobic performance [VO2max(post)] during a competitive season. During an 8-week trial period, 12 (N = 12) collegiate track athletes recorded their self-selected dietary intake via 24-hour recall. Analysis of CHO intake was conducted by a registered dietitian. Pre [VO2max (pre)] and post [VO2max (post)] season aerobic capacity assessments were performed using a one-way analysis of covariance (ANCOVA) with 2 covariates controlling for VO2max (pre) and CHO intake compared to the variance in VO2max (pre) and VO2max (post) by sex. The average CHO was 4.11 ± 1.03 g/kg body mass (BM), with only one female athlete meeting dietary recommendations, consuming ≥ 6 g/kg BM. Male distance runners on average had a lower CHO than females. After adjusting for VO2max (pre) and CHO, there were statistically significant differences between VO2max (post) group means by sex with a difference of 12.62 ml/kg/min (95% confidence interval [CI], 2.12-23.12, p = 0.02), with CHO accounting for 18% of the variance in VO2max (post). Collegiate distance runners exhibited marked improvements in maximal aerobic capacity during the in-season while consuming a marginally low-CHO diet, with a predominant effect in males. Therefore, CHO intakes below current recommendations for endurance athletes might not be detrimental to aerobic training adaptations.