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Sample records for play amateur basketball

  1. Fluid balance in amateur female basketball players: follow-up of 10 games

    Directory of Open Access Journals (Sweden)

    Abraham Batalla-Gavalda

    2016-02-01

    Full Text Available Introduction: The aim of the present study was to understand the development of hydration needs during a playoff stint, in a match situation, for an amateur women’s basketball team. In addition, the existence of possible differences in the level of dehydration according to playing position was analyzed. Material and Methods: Pilot study with single group measurements before competition and after competition was done. Both amateur basketball players (n=10 and their personal water containers were weighted before and after every match. Weight variations were evaluated considering the ingested liquid and replenishment liquid discharged through urine. Results: Results showed that there are significant differences between body mass before and after each match (z=8.551; p<.0005. However, magnitude of dehydration was very different in each player and match, with average values between 0.63kg (0.9% body weight and 0.95kg (1.37% body weight. In addition, there were not significant differences in the level of dehydration according to the playing position (F=1.59; p=0.1929. Conclusions: These evaluations confirm high intra and interpersonal variations as per body mass loss during the 10 referred playoff stint matches. Recommendation of creation of individualized hydration protocols is suggested.

  2. Problem Solvers: Solutions--Playing Basketball

    Science.gov (United States)

    Smith, Jeffrey

    2014-01-01

    In this article, fourth grade Upper Allen Elementary School (Mechanicsburg, Pennsylvania) teacher Jeffrey Smith describes his exploration of the Playing Basketball activity. Herein he describes how he found the problem to be an effective way to review concepts associated with the measurement of elapsed time with his students. Additionally, it…

  3. Problem Solvers: Solutions--Playing Basketball

    Science.gov (United States)

    Smith, Jeffrey

    2014-01-01

    In this article, fourth grade Upper Allen Elementary School (Mechanicsburg, Pennsylvania) teacher Jeffrey Smith describes his exploration of the Playing Basketball activity. Herein he describes how he found the problem to be an effective way to review concepts associated with the measurement of elapsed time with his students. Additionally, it…

  4. Collective efficacy, cohesion and performance in spanish amateur female basketball

    OpenAIRE

    Raul Mart\\u00EDnez-Santos; Oscar Ciruelos

    2013-01-01

    El objetivo de este estudio fue el de examinar las relaciones entre la eficacia colectiva, la cohesión y el rendimiento en el baloncesto español amateur femenino. Para ello, 68 jugadoras amateurs de ocho equipos diferentes completaron las versiones españolas del Collective Efficacy Questionnaire for Sport y del Group Environment Questionnaire for Sports al final de la temporada 2011/2012. Los resultados mostraron que la eficacia colectiva declarada por las jugadoras es un potente factor de ex...

  5. Collective efficacy, cohesion and performance in spanish amateur female basketball

    Directory of Open Access Journals (Sweden)

    Raul Mart\\u00EDnez-Santos

    2013-01-01

    Full Text Available El objetivo de este estudio fue el de examinar las relaciones entre la eficacia colectiva, la cohesión y el rendimiento en el baloncesto español amateur femenino. Para ello, 68 jugadoras amateurs de ocho equipos diferentes completaron las versiones españolas del Collective Efficacy Questionnaire for Sport y del Group Environment Questionnaire for Sports al final de la temporada 2011/2012. Los resultados mostraron que la eficacia colectiva declarada por las jugadoras es un potente factor de explicación de rendimiento, a diferencia de la cohesión de grupo general. Sin embargo, y en consonancia con la primera conclusión, las jugadoras de los equipos exitosos declararon mayores niveles de atracción e integración con el grupo en relación a la tarea.

  6. INTERVALS OF ACTIVE PLAY AND BREAK IN BASKETBALL GAMES

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    Pavle Rubin

    2010-09-01

    Full Text Available The problem of the research comes from the need for decomposition of a basketball game. The aim was to determine the intervals of active game (“live ball” - term defined by rules and break (“dead ball” - term defined by rules, by analyzing basketball games. In order to obtain the relevant information, basketball games from five different competitions (top level of quality were analyzed. The sample consists of seven games played in the 2006/2007 season: NCAA Play - Off Final game, Adriatic League finals, ULEB Cup final game, Euroleague (2 games and the NBA league (2 games. The most important information gained by this research is that the average interval of active play lasts approximately 47 seconds, while the average break interval lasts approximately 57 seconds. This information is significant for coaches and should be used in planning the training process.

  7. Analysis of inside play in basketball Analysis of inside play in basketball

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    D. Pintor

    2010-09-01

    Full Text Available

    In this research a descriptive analysis about some of the parameters implied in the inside play in basketball has been studied. Data of the 16 teams of the A.C.B. league were collected: each team was studied in an official game chosen randomly. Items of observation related with the frequency of apparition of the inside play in the game, with the time expended to offence as well as the way used to finish the play, were established. Data obtained show that in the 41,61% of global possessions appears inside play while in the 37,45% of these take place a pass toward the positions near the basket. The average time expended since starting the possession of the ball until the moment in which a pass is made is 8,41 seconds. The analysis shows the considerable capacity of resolution of players who receives an inside ball, which is represented by the percentage of times in which these players finish the offence (82,78%. A bigger number of direct actions than indirect actions to finish the offence play and a very low degree of opposition to the shot have been detected, overcoat taking in account that these shots were made in areas with a big amount of players.
    KEY WORDS: Basketball, inside play, inside pass.

     

    En el presente estudio se ha realizado una análisis descriptivo de algunos parámetros que definen el juego interior en baloncesto. Se tomaron datos de cada uno de los 16 equipos que participan en la liga A.C.B.: cada equipo fue estudiado en un encuentro oficial de competición, elegido de forma aleatoria. Se establecieron conductas de observación relacionadas con la frecuencia de aparición del juego interior en los partidos, con el tiempo empleado en el ataque, así como con la forma de resolución de la jugada. Los datos obtenidos reflejan que en el 4l,61% del total de posesiones se produce juego interior, mientras que en el 37

  8. Physical Characteristics Of Female Basketball Players According To Playing Position

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    Kucsa Richard

    2015-05-01

    Full Text Available Physical characteristics play an important role in the selection of young basketball players and the progress in their playing performance. The aim of the study was to analyze differences in chosen physical characteristics of Slovak U17 female basketball players with respect to their playing positions. We assumed, that there will be statistically significant differences between playing positions in each performance tests results. Chosen characteristics were analyzed for 14 players (mean/SD, age 16.34±0.82; body height 179.72±8.04 cm; body weight 67.62±7.10 kg; body fat 16.59±2.04 %; VO2max 46.20±4.71 ml.kg−1.min−1 according to their playing positions (guard, forward, center. Five specific performance tests for each player were conducted as a 3/4 Basketball court sprint, 10 × 5m Shuttle test, Lane agility drill, No-step vertical jump and Maximum vertical jump. The differences in tests results by playing positions were evaluated by one-way ANOVA. There were no significant differences found in results of chosen performance tests between playing positions (p>.05. In spite of fact, that there were no significant differences, we found interesting results between playing positions in physical characteristics. Guards had better results in speed (3.73±0.16 s, quickness (17.43±0.56 s and both lower-body power tests (47.16±3.06 cm; 57.00±3.40 cm than forwards and centers. Forwards had the best results in agility test (12.54±0.43 s. The results of this study produce useful information about physical characteristics of young basketball players according to their playing position and help to diagnose and improve their performance.

  9. Study on Common Injuries for Basketball Amateurs in Tongren City%铜仁市篮球爱好者常见运动损伤的研究

    Institute of Scientific and Technical Information of China (English)

    赵帅; 路旭光; 何健

    2016-01-01

    篮球运动是一项普及广泛和锻炼价值极高的一项运动,深受广大运动爱好者所喜爱,随着我国篮球运动的不断普及与提高,这项风靡全国的运动在铜仁市的无论校园,还是在街头巷尾,都得到了蓬勃发展。但是,由于篮球运动的不断普及和提高,加之篮球运动的综合性极强,它是集跑、跳、投于一身,在比赛过程中的速度之快、强度之大、对抗之激烈,导致该项目的运动损伤率不断提高。本文通过访谈法、文献资料法以及问卷调查法,对铜仁市篮球爱好者进行了问卷调查,分析了篮球运动中容易发生损伤的部位以及运动损伤的原因,并提出一定的预防措施及建议指导。通过调查研究得出篮球运动的损伤原因及如何预防和损伤的对策。研究结果对铜仁市篮球爱好者运动损伤的预防有着一定的指导意义,可以减少和避免篮球运动损伤的几率,以达到铜仁市篮球爱好者能快乐、健康、顺利的进行篮球运动的目的。%Basketball is a widespread and beneficial sport which is very popular among amateurs.With the popularization and promotion of basketball in China,it is developing prosperously in every corner in Tongren city. However,as an integrated sport combining running,jumping and shooting,and a sport with high speed,intensity and competitiveness,the injury rate in basketball is raising continuously.By using interviews,literature,and questionnaire survey methods,this paper surveys amateurs in Tongren by questionnaire,analyzes injury reasons and easy injuring body parts,provides prevention measures and guidelines.Based on the survey,this paper concludes causes and countermeasures for basketball injuries.The results offer guidelines for sport injuries among Tongren basketball amateurs to reduce and prevent injuries,aims at guarantee the happy,healthy and smooth basketball play for Tongren amateurs.

  10. 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...

  11. Do field position and playing standard influence athlete performance in wheelchair basketball?

    NARCIS (Netherlands)

    de Witte, Annemarie M. H.; Hoozemans, Marco J. M.; Berger, Monique A. M.; van der Woude, Lucas H. V.; Veeger, Dirkjan (H. E. J)

    2016-01-01

    Improved understanding of mobility performance in wheelchair basketball is required to increase game performance. The aim of this study was to quantify the wheelchair-athlete activities of players in different field positions and of different playing standard during wheelchair basketball matches.

  12. Do field position and playing standard influence athlete performance in wheelchair basketball?

    NARCIS (Netherlands)

    de Witte, Annemarie M. H.; Hoozemans, Marco J. M.; Berger, Monique A. M.; van der Woude, Lucas H. V.; Veeger, Dirkjan (H. E. J)

    2016-01-01

    Improved understanding of mobility performance in wheelchair basketball is required to increase game performance. The aim of this study was to quantify the wheelchair-athlete activities of players in different field positions and of different playing standard during wheelchair basketball matches. Fr

  13. Do field position and playing standard influence athlete performance in wheelchair basketball?

    NARCIS (Netherlands)

    de Witte, Annemarie M. H.; Hoozemans, Marco J. M.; Berger, Monique A. M.; van der Woude, Lucas H. V.; Veeger, Dirkjan (H. E. J)

    2016-01-01

    Improved understanding of mobility performance in wheelchair basketball is required to increase game performance. The aim of this study was to quantify the wheelchair-athlete activities of players in different field positions and of different playing standard during wheelchair basketball matches. Fr

  14. Do field position and playing standard influence athlete performance in wheelchair basketball?

    NARCIS (Netherlands)

    de Witte, Annemarie M H; Hoozemans, Marco J M; Berger, Monique A M; van der Woude, Lucas H V; Veeger, Dirkjan H E J

    2015-01-01

    Improved understanding of mobility performance in wheelchair basketball is required to increase game performance. The aim of this study was to quantify the wheelchair-athlete activities of players in different field positions and of different playing standard during wheelchair basketball matches. Fr

  15. SHOT DIFFERENCES BETWEEN PROFESSIONAL (ACB AND AMATEUR (EBA BASKETBALL TEAMS. MULTIFACTORIAL STUDY

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    Sergio J. Ib\\u00E1\\u00F1ez

    2009-01-01

    Full Text Available The shot is the game action in which the rest of the players' actions culminate, allowing them to achieve the goal of the game, to score. In this action several factors intervene which condition its execution. The goal of this study was to analyze the shot, by executing a multifactorial study of the differences in this technical action between two competition levels, professional teams (experts and amateur teams (inexperienced players. The shots taken during 60 games from two competition levels, the ACB league (30 games and the EBA league (30 games were studied. A total of 10212 shots were studied, of which 5161 corresponded to the ACB league (174±13.23 and 5051 corresponded to the EBA league (168±19.54. After an exploratory analysis, an inferential non-parametric analysis to assess whether the two samples of shots were equivalent was used (Mann-Whitney U. Differences in free-throws between professional and amateur teams were only found in the istribution of the shots by quarter (U=7.5E+005, p=.025. The field goals taken in the two competitions are different with regard to the defensive pressure that the players receive before shooting (U=6.4E+006 p=.025, the shot value (U=7.1E+006, p=.010, and the action taken before the shot (U=6.6E+006, p=.000. The expert players (professionals have a greater command of the game than the amateurs (inexperienced players, they maintain a higher defensive intensity from the beginning of the game, they are able to find shot positions in which the defensive pressure is less, they use more collective actions to look for better shot positions (passes, and they can shoot from greater distances.

  16. Graded shuttle run performance by playing positions in elite female basketball.

    Science.gov (United States)

    Štrumbelj, Boro; Vučković, Goran; Jakovljević, Saša; Milanović, Zoran; James, Nic; Erčulj, Frane

    2015-03-01

    A graded shuttle run test was used to assess differences in physiological parameters between playing positions in elite female basketball players. Twenty-four female basketball players (8 guards, 8 forwards, and 8 centers) who played for the senior national teams of Slovenia and Serbia were tested with the 30-15 intermittent fitness test. During the shuttle run, the following physiological parameters were measured: oxygen consumption ((Equation is included in full-text article.)), carbon dioxide production ((Equation is included in full-text article.)), pulmonary ventilation (VE) breath by breath, respiratory quotient, oxygen pulse as the (Equation is included in full-text article.)vs. HR ratio and [LA]. No significant differences were found for any of the measures between the 3 playing positions. Although this finding was surprising, future studies should try to determine whether the tactics used in female basketball determine that the interpositional differences seen in male basketball are not evident.

  17. An evidence-driven approach to scrum law modifications in amateur rugby played in South Africa.

    Science.gov (United States)

    Hendricks, Sharief; Lambert, Mike I; Brown, James C; Readhead, Clint; Viljoen, Wayne

    2014-07-01

    In 2012, the South African Rugby Union (SARU) approved a new set of scrum laws for amateur rugby played in the country, to be implemented at the start of the 2013 rugby season. These law changes were primarily based on the relatively high proportion of scrum-related catastrophic injury data collected as part of the BokSmart National Rugby Safety Programme (BokSmart) over the preceding 4 years (2008-2011). To describe the scrum-related catastrophic injury data in South Africa over the past 5 years (2008-2012), and to discuss how this evidence justifies the change in the Amateur Scrum Laws to make this aspect of the game safer in South Africa. Catastrophic injury data were collected through BokSmart at amateur and professional levels, during training and matches over 5 years (2008-2012). The scrum phase accounted for 33% (n=20 of 60) of all catastrophic injuries between 2008 and 2012. Eighteen of the 20 scrum injuries (90%) were confirmed as acute spinal cord injuries, with 13 of these being permanent injuries. For the scrum injury mechanisms that were provided (n=19), 'impact on the engagement' was the most frequently reported (n=11 of 19, 58%), followed by 'collapsed scrum' (n=7 of 19, 37%) and 'popping out' (n=1 of 19, 5%). Based on these scrum-related catastrophic injury data, a change in the Amateur Scrum Laws of South African Rugby was justified. The main purpose of these scrum law changes is to reduce the number of scrum-related catastrophic injuries in the country, by minimising the opportunity for impact injury and subsequent scrum collapse in amateur rugby in South Africa, thereby making this aspect of the game of rugby safer. 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.

  18. Is Teaching a Child to Read Like Teaching a Mouse to Play Basketball?

    Science.gov (United States)

    Rycik, Jim

    1996-01-01

    Compares children's literacy learning to a mouse playing basketball--namely, that children are doing what they have been trained to do, and do not understand the rules of the game. Discusses behaviorist theory in both examples, and contrasts behaviorist theory with constructivist theory. (PA)

  19. Return to Play After Forearm and Hand Injuries in the National Basketball Association.

    Science.gov (United States)

    Morse, Kyle W; Hearns, Krystle A; Carlson, Michelle Gerwin

    2017-02-01

    Hand injuries can result in significant time away from competition for professional basketball players. Time to return to play after hand injuries in elite athletes has not been well described. To report the return to play from metacarpal fractures, phalangeal fractures, and thumb ligament tears in National Basketball Association (NBA) players over a 5-year period. Descriptive epidemiology study. The NBA transaction report was analyzed from January 2009 to May 2014. Players were identified if they were added to the inactive list (IL), missed games due to their injury, or underwent surgery as a result of hand injury. Number of games missed due to injury, days spent on the IL, and age at injury were calculated by injury type and location. One hundred thirty-seven injuries were identified: 39 injuries to the hand and 98 injuries to the finger. Three major injury patterns were identified and analyzed: metacarpal fractures (n = 26), phalangeal fractures (n = 33), and thumb ligament tears (n = 9). The type of injury sustained affected return to play (P basketball players can lead to prolonged periods of time away from competition, especially after surgery. This study provides guidelines on expected return to play in the NBA after these common hand injuries.

  20. The Effect of Ear Playing Instruction on Adult Amateur Wind Instrumentalists' Musical Self-Efficacy: An Exploratory Study

    Science.gov (United States)

    Hartz, Barry; Bauer, William

    2016-01-01

    The purpose of this mixed methods study was to examine the effect of ear playing instruction on adult amateur wind instrumentalists' musical self-efficacy. Ten volunteer members of a community band in a small town in Ohio completed the "Ear Playing Profile" both prior to and following an eight-week period of instruction in playing by ear…

  1. The Effect of Ear Playing Instruction on Adult Amateur Wind Instrumentalists' Musical Self-Efficacy: An Exploratory Study

    Science.gov (United States)

    Hartz, Barry; Bauer, William

    2016-01-01

    The purpose of this mixed methods study was to examine the effect of ear playing instruction on adult amateur wind instrumentalists' musical self-efficacy. Ten volunteer members of a community band in a small town in Ohio completed the "Ear Playing Profile" both prior to and following an eight-week period of instruction in playing by ear…

  2. Return to Play After Forearm and Hand Injuries in the National Basketball Association

    Science.gov (United States)

    Morse, Kyle W.; Hearns, Krystle A.; Carlson, Michelle Gerwin

    2017-01-01

    Background: Hand injuries can result in significant time away from competition for professional basketball players. Time to return to play after hand injuries in elite athletes has not been well described. Purpose: To report the return to play from metacarpal fractures, phalangeal fractures, and thumb ligament tears in National Basketball Association (NBA) players over a 5-year period. Study Design: Descriptive epidemiology study. Methods: The NBA transaction report was analyzed from January 2009 to May 2014. Players were identified if they were added to the inactive list (IL), missed games due to their injury, or underwent surgery as a result of hand injury. Number of games missed due to injury, days spent on the IL, and age at injury were calculated by injury type and location. Results: One hundred thirty-seven injuries were identified: 39 injuries to the hand and 98 injuries to the finger. Three major injury patterns were identified and analyzed: metacarpal fractures (n = 26), phalangeal fractures (n = 33), and thumb ligament tears (n = 9). The type of injury sustained affected return to play (P < .05). All thumb ligament tears required surgery and had the longest return to play of 67.5 ± 17.7 days (P < .05). The return to play for surgically treated metacarpal fractures (56.7 ± 26.3 days) was significantly greater than nonsurgically treated metacarpal fractures (26.3 ± 12.1 days; P < .01). Return to play for surgically repaired phalangeal fractures (46.2 ± 10.8 days) trended greater but was not significantly different than phalangeal fractures treated nonsurgically (33.3 ± 28.5 days; P = .21). Conclusion: Hand injuries in professional basketball players can lead to prolonged periods of time away from competition, especially after surgery. This study provides guidelines on expected return to play in the NBA after these common hand injuries. PMID:28251168

  3. CAREER TRANSITION FROM JUNIOR TO SENIOR IN BASKETBALL PLAYERS

    Directory of Open Access Journals (Sweden)

    Alberto Lorenzo

    2009-01-01

    Full Text Available The purpose of the study was to investigate what factors affect basketball players in the transition from junior and amateur to senior and professional sport respectively. The study was a qualitative research which uses a semi-structured interview to get the data. There were interviewed five Spanish basketball players who were starting playing in a team of Basketball Club Association (C.B.A.. The results showed that the participants face several changes both in the sport and in the life outside sport. At the same time, the results indicated the existence of several coping strategies that help the player in his career transition.

  4. Differences in performance indicators among winners and losers of group a of the spanish basketball amateur league (EBA

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    Isabel Parejo

    2013-01-01

    Full Text Available El objetivo de este estudio es identificar las diferencias existentes en los indicadores de rendimiento entre equipos ganadores y perdedores, en función del tipo de partido, en el Grupo A de la Liga Española de Baloncesto Amateur. La muestra del estudio estuvo constituida por 231 partidos (N = 462 casos disputados durante la temporada 2005/2006 por los equipos del Grupo A durante la Fase Regular de la Liga EBA (Española de Baloncesto Amateur. Las variables del estudio fueron los indicadores de rendimiento y las variables secundarias, posesiones de balón y coeficientes de eficacia ofensiva y defensiva. El análisis inferencial entre ganadores y perdedores mostró que existían diferencias significativas en varios de los indicadores de rendimiento y los coeficientes de eficacia en los tres tipos de partido, aumentando el número de indicadores que diferencian a medida que se desequilibran los encuentros. En los partidos equilibrados son los lanzamientos de 2 puntos fallados, los tiros libres anotados, los rebotes defensivos, las asistencias y las faltas personales, así como los coeficientes de eficacia, los que diferencian entre ganadores y perdedores. En los partidos desequilibrados se añaden los lanzamientos de campo anotados, las pérdidas y los tapones efectuados. En el caso de los partidos muy desequilibrados casi todos los indicadores de rendimiento excepto las recuperaciones, los rebotes ofensivos y los lanzamientos de 3 puntos fallados diferencian a los ganadores de los perdedores. Se pone de manifiesto que existen un mayor número de indicadores de rendimiento de media que diferencian a los equipos ganadores de los perdedores con respecto a otras ligas más profesionales, por lo que se puede afirmar que existe mayor heterogeneidad entre el nivel de los equipos que conforman este tipo de ligas amateur.

  5. Return to Play and Performance After Jones Fracture in National Basketball Association Athletes.

    Science.gov (United States)

    Begly, John P; Guss, Michael; Ramme, Austin J; Karia, Raj; Meislin, Robert J

    2016-07-01

    Basketball players are at risk for foot injuries, including Jones fractures. It is unknown how this injury affects the future play and performance of athletes. National Basketball Association (NBA) players who sustain Jones fractures of the base of the fifth metatarsal have high rates of return to play and do not experience a decrease in performance on return to competition when compared with preinjury and with control-matched peers. Retrospective cohort study. Level 5. Data on 26 elite basketball players with Jones fractures over 19 NBA seasons (1994-1995 to 2012-2013) were obtained from injury reports, press releases, player profiles, and online public databases. Variables included age, body mass index (BMI), player position, experience, and surgical treatment. Individual season statistics pre- and postinjury were collected. Twenty-six controls were identified by matched player position, age, and performance statistics. The mean age at the time of injury was 24.8 years, mean BMI was 24.7 kg/m(2), and the mean experience prior to injury was 4.1 NBA seasons. Return to previous level of competition was achieved by 85% of athletes. There was no change in player efficiency rating (PER) when pre- and postinjury performance was compared. When compared with controls, no decline in PER measured performance was identified. The majority of NBA players sustaining a Jones fracture return to their preinjury level of competition. These elite athletes demonstrate no decrease in performance on their return to play. Jones fractures are well-studied injuries in terms of etiology, diagnosis, and management. However, the effect of these injuries on future performance of athletes is unknown. Using the findings of our study, orthopaedic surgeons may be better prepared to counsel and educate elite athletes who sustain a Jones fracture. © 2015 The Author(s).

  6. Muscle fatigue induced by a soccer match-play simulation in amateur Black South African players.

    Science.gov (United States)

    Jones, Robert I; Ryan, Bennett; Todd, Andrew I

    2015-01-01

    The purpose of the current study was to investigate the effects of a soccer-specific fatigue protocol on the temporal changes in torque producing abilities of the thigh within African soccer players. Twenty amateur Black South African soccer players performed the SAFT(90) soccer match-play simulation protocol, while isokinetic measurements were obtained pre-exercise (T0), after the 1st half (T45), after half time (T60) and after the 2nd half (T105). During SAFT(90) performance, significant overall concentric quadriceps peak torque changes were observed (1.05 rad · s(-1) = 16.6%, 3.14 rad · s(-1) = 9.5%). Eccentric hamstring peak torque also decreased significantly over time (1.05 rad · s(-1) = 17.4%, 3.14 rad · s(-1) = 18.5%), with significant reductions occurring during both halves. The functional strength ratio (eccH:conQ) at 3.14 rad · s(-1) was observed to significantly decrease by 10.1% overall. The indicated time-dependent changes in Black South African players have implications for competitive performance and increased predisposition to hamstring muscle injuries. Because of muscle fatigue, the hamstrings may have insufficient eccentric strength during the late swing phase when sprinting, resulting in eccentric overload and damage to the muscle. The changes in strength found in the current study help explain the increased predisposition to hamstring strains during the latter stages of both halves of match-play as reported by epidemiological studies.

  7. Role of maturity timing in selection procedures and in the specialisation of playing positions in youth basketball

    NARCIS (Netherlands)

    te Wierike, Sanne Cornelia Maria; Elferink-Gemser, Marije Titia; Tromp, Eveline Jenny Yvonne; Vaeyens, Roel; Visscher, Chris

    2015-01-01

    This study investigated the role of maturity timing in selection procedures and in the specialisation of playing positions in youth male basketball. Forty-three talented Dutch players (14.66 +/- 1.09years) participated in this study. Maturity timing (age at peak height velocity), anthropometric, phy

  8. Role of maturity timing in selection procedures and in the specialisation of playing positions in youth basketball

    NARCIS (Netherlands)

    te Wierike, Sanne Cornelia Maria; Elferink-Gemser, Marije Titia; Tromp, Eveline Jenny Yvonne; Vaeyens, Roel; Visscher, Chris

    2015-01-01

    This study investigated the role of maturity timing in selection procedures and in the specialisation of playing positions in youth male basketball. Forty-three talented Dutch players (14.66 +/- 1.09years) participated in this study. Maturity timing (age at peak height velocity), anthropometric, phy

  9. 公共体育课业余篮球裁判员教学优化研究%The Optimizing Research On The Teaching Of The Amateur Basketball Referee in Public Sports

    Institute of Scientific and Technical Information of China (English)

    李加鹏

    2012-01-01

    通过对公共体育课业余篮球裁判员的有关裁判员的执法形象、心理素质、教学手段、执法实践、考核评价制度等方面的研究,旨在进一步提高大学生业余篮球裁判员比赛执法水平,丰富大学生业余体育生活,推动校园篮球文化建设,减少球场争议与球场暴力事件的发生,共同促进和谐校园体育文化建设。%This paper studies on some accepts of amateur basketball referee,such as executive image,psychological quality,means of instruction,executive practice,institution of examination and evaluation.With a view to improving the executive standard and enriching the physical activities of amateur basketball referee in university.Prompting the cultural development in university,as well as reducing the occurrence of violence and controversy in filed.Joining together to prompt the development of sports culture in university.

  10. Motivational Regulations and Goal Orientation in Division III Basketball Players: Gender and Playing Status Differences

    Directory of Open Access Journals (Sweden)

    Teri J. Hepler

    2016-04-01

    Full Text Available Objective: The purpose of this study was to examine differences in motivational regulations and goal orientation based on gender and playing status.  Method:  Two hundred and fourteen Division III basketball players (92 males, 112 females completed the Sport Motivation Scale-28 and the Task and Ego Orientation in Sport.  Based on average playing time per game, participants were classified as starters (over 20 minutes, n = 80, substitutes (6-20 minutes, n = 65, and benchwarmers (5 minutes or less, n = 63.  Results: Results indicated that males scored higher than females on external regulation, substitutes scored higher than starters on all 3 dimensions of extrinsic motivation, and benchwarmers expressed the most amotivation.  Task orientation was positively related to all types of intrinsic and extrinsic motivation. Conclusion: While coaches should strive to enhance the intrinsic motivation in all of their athletes, special emphasis should be placed on promoting intrinsic motivation of male athletes and substitutes.   Keywords:  motives, playing time, sex differences

  11. Emerging data on the incidence of concussion in football practice at all levels of amateur play.

    Science.gov (United States)

    Guthrie, Robert M

    2015-11-01

    There has been increasing concern, particularly in the US, about potential long-term neurological deterioration syndromes seen in the US football players. Recurrent concussions are a potential area of concern. The authors of this paper have used data bases from three levels of amateur US football to identify the rate and risk of concussion injury in both football games and practice at the youth, high school, and college levels. This information is very important initial data around concussion rates at these levels.

  12. [Energy requirements in adolescents playing basketball in Russian Olympic reserve team].

    Science.gov (United States)

    Martinchik, A N; Baturin, A K; Petukhov, A B; Baeva, V S; Zemlianskaia, T A; Sokolov, A I; Peskova, E V; Tysiachnaia, E M

    2003-01-01

    The energy expenditure and requirements and dietary intake were studied in basketball players aged 14-16 years during 3 week-training period. The subjects of study were 14 boys and 18 girls as of the members of reserve of Russian Olympic basketball team. The dietary intake was estimated by dietary record of all food consumed within 24 hours last 7 days of training period. The energy expenditure was estimated by registration of time on different physical activity of team and multiplication on physical activity coefficient. The decrease of body mass and body mass index were observed in boys with height 195 cm and more to the end of training period. These tall boys did not consume enough food to satisfy the estimated energy requirement. It is estimated that energy need of tall basketball players is no less then 5000 kcal for boys and 3100 kcal for girls.

  13. Role of maturity timing in selection procedures and in the specialisation of playing positions in youth basketball.

    Science.gov (United States)

    te Wierike, Sanne Cornelia Maria; Elferink-Gemser, Marije Titia; Tromp, Eveline Jenny Yvonne; Vaeyens, Roel; Visscher, Chris

    2015-01-01

    This study investigated the role of maturity timing in selection procedures and in the specialisation of playing positions in youth male basketball. Forty-three talented Dutch players (14.66 ± 1.09 years) participated in this study. Maturity timing (age at peak height velocity), anthropometric, physiological, and technical characteristics were measured. Maturity timing and height of the basketball players were compared with a matched Dutch population. One-sample t-tests showed that basketball players were taller and experienced their peak height velocity at an earlier age compared to their peers, which indicates the relation between maturity timing and selection procedures. Multivariate analysis of variance (MANOVA) showed that guards experienced their peak height velocity at a later age compared to forwards and centres (P < .01). In addition, positional differences were found for height, sitting height, leg length, body mass, lean body mass, sprint, lower body explosive strength, and dribble (P < .05). Multivariate analysis of covariance (MANCOVA) (age and age at peak height velocity as covariate) showed only a significant difference regarding the technical characteristic dribbling (P < .05). Coaches and trainers should be aware of the inter-individual differences between boys related to their maturity timing. Since technical characteristics appeared to be least influenced by maturity timing, it is recommended to focus more on technical characteristics rather than anthropometric and physiological characteristics.

  14. What Skills and Tactics Are Needed to Play Adult Pick-Up Basketball Games?

    Science.gov (United States)

    Wang, Jianyu; Liu, Wenhao; Moffit, Jeffrey

    2010-01-01

    The purpose of this study was to examine skill levels and performance patterns of regular players of pick-up basketball games. By a survey, 65 participants were identified as regular players and participated in the study. An observational instrument used to analyze game performance of the participants was developed and both content and construct…

  15. Investigation of the Running of Teenage Amateur Basketball Clubs in Nanjing and Strategy Research%南京市青少年业余篮球俱乐部运行现状调查与对策研究

    Institute of Scientific and Technical Information of China (English)

    王迪

    2015-01-01

    青少年业余篮球俱乐部作为新型的社会化青少年体育组织是学校体育、社会体育一体化的初步体现。本研究随机选取了南京市5家青少年业余篮球俱乐部的发展现状作为研究现状,采用文献法、问卷调查法、访谈法等研究方法。从俱乐部的经营模式、资金来源与运转情况、场馆设施、培训方式与培训形式四个方面研究青少年篮球俱乐部的运行现状,发现南京市青少年业余篮球俱乐部在发展过程中存在资金渠道来源单一,自身造血功能不足;培训场馆无法保证,培训质量参差不齐;体教结合落实过于片面。%As a new type of socialized teenage sports organization,teenager amateur basketball club is the initial manifestation of school sports and social sports.This study randomly selects 5 teenage amateur basketball clubs and takes their current situation of development as its research status.With methods of literature,questionnaire and interview,the study analyzes the running of the 5 clubs from aspects of management modes,resources of funding and functioning,venues and facilities,training methods and training form.The paper finds that problems existing in the development of Nanjing teenage basketball clubs include single resource and deficiency of self -supply of funding,quality of training cannot be guaranteed due to lack of training venues and one -sidedness of the combination of sports and education.

  16. Speed-strength training of young basketball players of 13-14 years old according to the playing game position

    Directory of Open Access Journals (Sweden)

    Nesterenko Natalya

    2016-06-01

    Full Text Available The technique was developed and experimentally substantiated for speed-strength training of 13-14 years old basketball players over an annual cycle at the stage of preparatory basic training that is based on the rational use of differentiated tools, depending on the specifics of competitive activity of players with different playing positions. Experimental methodology involves the total number of training hours in compliance with the current program for Children-youth sports schools from 1999 and redistribution of the content of special physical preparation. A feature of the technique was a differentiated approach to the planning of speed-strength training involving the use of block system: each of the blocks included the sets of exercises focused on the development of speed-strength qualities of players with different playing positions. Training blocks met the playing specialization of athletes and differed in content of applied exercises. The focus of training load was determined by the number of repetitions, duration of exercise and duration of rest intervals. Physical qualities evolved depending on the importance of the leading factors in the structure of the speed-strength preparedness of basketball players with different playing position.

  17. Research on Development Mode of Foreign Competitive Basketball

    Science.gov (United States)

    Xianjiang, Zhou; Bin, Zong; Xianwu, Wu

    Adopting literature material method, survey and comparative method, the paper studies foreign competitive basketball, foreign competitive basketball on behalf of the State management system model, competitive basketball reserve personnel training and development mode system. Rely on different powers of the foreign competitive basketball from amateur to professional development; different modes of foreign competitive basketball management system; foreign competitive basketball back-up personnel training mode, the model on school training in America and other countries, mainly the club training mode in European countries; foreign model of development of competitive basketball, different from social guidance, in the combination operation mode of market regulation and government administrative intervention.

  18. Amount of Minutes Played Does Not Contribute to Anterior Cruciate Ligament Injury in National Basketball Association Athletes.

    Science.gov (United States)

    Okoroha, Kelechi R; Marfo, Kojo; Meta, Fabien; Matar, Robert; Shehab, Ramsy; Thompson, Terry; Moutzouros, Vasilios; Makhni, Eric C

    2017-07-01

    There is limited information on the potential risk factors for sustaining an anterior cruciate ligament (ACL) tear in National Basketball Association (NBA) athletes. This study evaluated 83 NBA players who sustained an ACL injury between 1984 and 2015 to determine the influence of minutes played on injury risk. Minutes played in the injury game, during the season, and over their career were assessed, along with the ability to return to play, player efficiency rating, and playing time after return. Athletes in the NBA played significantly fewer minutes before sustaining an ACL injury (17.1 minutes) than their average minutes per game that season (23.5 minutes; PNBA competition the season following ACL injury. Players who were drafted as lottery picks (draft pick 1 to 15) or those who were starters played significantly more minutes the season following injury than those who were not (both PNBA game did not contribute to the risk of sustaining an ACL injury. Although there was a high rate of return to NBA competition the season following injury, those who were elite athletes played more minutes per game than those who were not. Athletes who returned to play sustained a decrease in player efficiency ratings compared with similar athletes without ACL injury. [Orthopedics. 2017; 40(4):e658-e662.]. Copyright 2017, SLACK Incorporated.

  19. Injuries in women's basketball.

    Science.gov (United States)

    Trojian, Thomas H; Ragle, Rosemary B

    2008-03-01

    Women's basketball has changed over time. It is a faster paced game than it was 30 years ago. Greatplayers, like Anne Meyers,who was the first, and only, woman to be signed to an NBA contract, would agree today's game is different. The game is played mostly "below the rim" but with players like Candice Parker, Sylvia Fowles and Maya Moore able to dunk the ball, the game is still changing. The one thing that remains constant in basketball, especially women's basketball, is injury. The majority of injuries in women's basketball are similar to those in men's basketball. Studies at the high school and college level show similar injury rates between women and men. ACL injuries are one exception, with female athletes having atwo to four times higher rate ofACL injuries. In this article, we review the common injuries in women's basketball. We discuss treatment issues and possible preventive measures.

  20. Rehabilitation of basketball injuries.

    Science.gov (United States)

    Malanga, Gerard A; Chimes, Gary P

    2006-08-01

    Basketball is one of the most popular sports in the United States and throughout the world, and therefore represents one of the most common sources of sports-related injuries. Basketball injuries should be managed by the same general rehabilitation principles as other sports injuries. Additionally, the clinician should be aware not only of general sports injuries but of those injuries most commonly seen in basketball players. By maintaining knowledge of the most common basketball injuries as well as their diagnosis and treatment, the clinician can help to optimize the athlete's return to play and enjoyment of the sport.

  1. Importance of clinical examination in diagnostics of Osgood-Schlatter Disease in boys playing soccer or basketball

    Directory of Open Access Journals (Sweden)

    Amela Halilbasic

    2012-04-01

    Full Text Available Introduction: Osgood–Schlatter disease is an irritation of the patellar tendon at the tibial tubercle. Sports with jumps, running, and repeated contractions of knee extension apparatus are considered to be importantexternal risk-factors which could cause Osgood–Schlatter disease.Objectives of the study are to draw attention to the importance of clinical examination in diagnostics of Osgood–Schlatter disease in boys playing soccer or basketball.Methods: The research included data obtained from 120 boys, average age of 14 years. Examinees were split into two groups, one with young athletes which regularly have soccer or basketball trainings and thesecond one with boys who do not participating in sports. We performed anthropological measurements and clinical examinations of both knees and hips for both groups. For the statistical analysis we used pointbiserialcorrelation coefficient.Results: Based on clinical examination, Osgood–Schlatter disease was diagnosed in 51 examinees (42.5%. In “athletic group” Osgood–Schlatter disease had 31 boys or 52%, comparing with “non-athletic group” wherewe found 20 adolescents with disease (33%. Number of boys with Osgood–Schlatter disease was higher for 19% in “athletic group” comparing with “non-athletic group”. Comparing incidence rate for boys in both groups with diagnosed II and III level of Osgood–Schlatter disease we found that rate is higher in “athletic group” 2.25 times comparing with “non-athletic group”.Conclusions: Clinical examination is critical method in the process of diagnosing Osgood–Schlatter disease especially for identifying II and III level of this disease.

  2. Special Basketball Player

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    Li Qing, the Beijing Mentally Challcngcd Basketball Tcam guard, plays under the same number as NBA star Kobe - eight. Li and his team enjoy their lives to the full, particularly playing basketball. Their favorite topics of conversation are computer games and NBA stars. Studying and playing basketball are the epicenter of Li Qing’s life. At the training ground, a two hour drive from his home, demands on Li and the rest of the team are as strict as for any sports team. The

  3. Return to play and performance after anterior cruciate ligament reconstruction in the National Basketball Association: surgeon case series and literature review.

    Science.gov (United States)

    Nwachukwu, Benedict U; Anthony, Shawn G; Lin, Kenneth M; Wang, Tim; Altchek, David W; Allen, Answorth A

    2017-09-01

    To investigate return to play (RTP) and functional performance after anterior cruciate ligament reconstruction (ACLR) in National Basketball Association (NBA) players and to perform a systematic review of the literature to understand RTP after ACLR in professional basketball. NBA players undergoing ACLR between 2008 and 2014 by two surgeons were identified. RTP and performance were assessed based on a review of publically available statistics. A systematic review of the literature was performed using the MEDLINE database. Inclusion criteria were: English language, ACL surgery outcome, professional basketball and RTP outcome. We reviewed studies for RTP rates and RTP performance. Our study included 12 professional basketball players with NBA level experience. Eleven of the 12 players returned to their prior level of play. Eight of the 9 (88.9%) players actively playing in the NBA returned to play in the NBA at a mean 9.8 months. Among players returning to NBA play, during RTP season 1, mean per game statistics decreased for the following: minutes, points, rebounds, assists, steals, blocks, turnovers and personal fouls - none of these changes reached statistical significance. Player efficiency ratings significantly declined from pre-injury (12.5) to the first RTP season (7.6) (p = 0.05). By RTP season 2, player performance metrics approximated pre-injury levels and were not significantly different. Six studies met inclusion criteria; reported RTP rates ranged from 78-86%. Identified studies similarly found a decline in functional performance after RTP. There is a high rate (89%) of return to NBA play for NBA players undergoing ACLR. After RTP, however, there is a quantitative decline in initial season 1 RTP statistics with a significant decrease in player efficiency rating. By RTP season 2, performance metrics demonstrated an improvement compared to RTP season 1 but did not reach pre-injury functional performance, though performance metrics are not significantly

  4. Concussion Incidence and Return-to-Play Time in National Basketball Association Players: Results From 2006 to 2014.

    Science.gov (United States)

    Padaki, Ajay S; Cole, Brian J; Ahmad, Christopher S

    2016-09-01

    Various research efforts have studied concussions in the National Football League, Major League Baseball, and the National Hockey League. However, no study has investigated the incidence and return-to-play trends in the National Basketball Association (NBA), which this study aims to do. Increased media scrutiny and public awareness, in addition to the institution of a league-wide concussion protocol, may have resulted in more conservative return-to-play practices. Descriptive epidemiology study. All concussions to NBA players that were publicly reported in the media from the beginning of the 2006 NBA season to the end of the 2014 season were included. The incidence and return-to-play statistics were generated by synthesizing information from publicly available records. There were 134 publicly reported concussions to NBA players from the beginning of the 2006 season to the conclusion of the 2014 season, resulting in an average of 14.9 concussions per season. The incidence has not changed significantly during this time span. The average games missed after a concussion from 2006 to 2010 was 1.6, significantly less than the 5.0 games missed from 2011 to 2014, following the institution of the NBA concussion protocol (P = .023). Although the incidence of publicly reported concussions in the NBA has not changed appreciably over the past 9 seasons, the time missed after a concussion has. While players often returned in the same game in the 2006 season, the combination of implemented policy, national coverage, medical staff awareness, and player education may have contributed to players now missing an average of 4 to 6 games after a concussion. A multitude of factors has resulted in more conservative return-to-play practices for NBA players after concussions. © 2016 The Author(s).

  5. Basketball Bowling

    Science.gov (United States)

    Mirabile, Chris; Cooper, Michael; Petrie, Heather

    2006-01-01

    Basketball bowling was developed after students in the authors' physical education class participated in a bowling unit sponsored through Bowl America. Basketball bowling is a lead-up activity for elementary-age students that incorporates basic skills from basketball and bowling. The general object of this activity is to be the first team to roll…

  6. On Situation and Prevention of College Basketball Sports

    Institute of Scientific and Technical Information of China (English)

    Baichao Xu

    2015-01-01

    Basketball is one of the favorite sports of the masses, in order to allow a more efficient conduct of basketball for the college student sports activities, it can play a positive role in promoting to enable students to love, enjoy basketball. This paper is to study the current situation and prevent the basketball damage.

  7. Analysis of College Student's Athletic Injuries in Playing Basketball%大学生篮球运动损伤解。

    Institute of Scientific and Technical Information of China (English)

    万国华; 杨小勇; 王碧怡; 宋军; 吴国平

    2012-01-01

    随机分层整群抽样了广东省9所高校105个班级,以各班中篮球人口为研究对象,对其篮球运动损伤发生场合、损伤种类及成因进行了调查与分析。结果显示:从损伤发生场合来看,课外锻炼损伤发生比例最高,达到68.6%,比赛与体育课则分别为19.3%与13.8%。从损伤种类来看,主要为擦伤、拉伤、扭伤与挫伤4类,它们的发生率分别为71.1%、33.3%、25.2%与13.8%。为预防大学生篮球损伤应对学生加强篮球规则宣传教育,增强其自我保护意识,丰富其自我保护技巧,突出护具保护教育,提高其篮球专项身体素质,加强其自我监督的知识与技能教育。%Based on the method of stratified cluster random sampling of 105 classes of 9 universities in Guangdong Province, this paper investigates and analyzes the occasions, the types and the causes of athletic injury, taking basketball population in each class as Research Object .The results show that from the injury occasions perspective, the physical injury m extra-curricular exercise reaches the highest proportion of 68.6%, competitions covering 19.3% and PE covering 13.8%. In the point of view of injury types, there are four: abrasion, pull, strain and contusion, and each respectively covers occurring rate: 71.1%, 33.3%, 25.2%, andl3.$%. To prevent college students' athletic injury in playing basketball is proposed in the following way: to strengthen the basketball rules publicity, to enhance self-protection awareness, to enrich self-protection techniques, to emphasize using protector, to improve physical quality of basketball event, and to reinforce serf-monitoring knowledge and skill education.

  8. Does the African-American-white mortality gap persist after playing professional basketball? A 59-year historical cohort study.

    Science.gov (United States)

    Lawler, Tyler; Lawler, Frank; Gibson, Jack; Murray, Rachael

    2012-06-01

    The African-American-white mortality gap for males in the United States is 6 years in favor of whites. Participation in professional sport may moderate this ethnic disparity. The historical cohort of professional basketball players, with nearly equal numbers of African-American and white players, can provide a natural experiment that may control for the classic confounders of income, education, socioeconomic status (SES), and physical factors related to mortality. The objectives of this study are to assess mortality and calculate survival for the overall study population and within ethnicity. Data were combined from several publicly available sources. The cohort was analyzed to compare longevity among all players, and for players stratified by ethnicity, with the general U.S. population. The final dataset included 3366 individuals, of whom 56.0% were African American. Results suggest white players live 18 months longer than their African-American colleagues. African-American players gained 9 years on their respective referent and live longer than white men in the general public. After controlling for covariates, we found that African-American players have a 75% increased risk of death compared with white players, a statistically significant gap (p gap for males is largely ameliorated (1.5 years vs. 6.1 years) in professional basketball but still persists. Copyright © 2012 Elsevier Inc. All rights reserved.

  9. Changes and Recovery in Fitness capacities following a series of Handball matches played in the Sub-tropical climate by Division 1 amateur players

    Directory of Open Access Journals (Sweden)

    Nouatin KB

    2015-10-01

    Full Text Available The objective of this study was to determine in amateur handball players, the changes in fitness capacities and physiological data, during a series of three consecutive matches, as well as the rates of restoration reached after a 24-hour recovery. The study sample included 17 senior players (23.5 ± 0.7 years; 176.4 ± 6.7 cm; 73.4 ± 9.2 kg. They were randomly distributed in two teams A and B, to play the series of experimental matches, 24 hours apart. The players ran a 30-m sprint and took repeated sprint ability test, before the first and at the end of the third match. We measured the squat and counter movement jump heights, the physiological parameters before and just at the end of all the matches. The performances at the 30-m sprint and jump tests decreased non-significantly (p > 0.05 between the beginning and the end of the three matches. The repeated sprint ability was reduced by 9.3% between the initial measurement and that of the end of the 3rd match. After a 24-hour recovery, the difference with the initial performance was always of the same order as that of the end of the 3rd match. In the context of this study, there was no cumulated effect of the matches on the fitness capacities measured. The results suggest that the trainers systematically integrate in the training schedules of these handball players, physical preparation and fitness work items that favor fast inter-efforts recovery.

  10. Incidence and pattern of injuries among adolescent basketball players in Nigeria

    Directory of Open Access Journals (Sweden)

    Owoeye Oluwatoyosi Babatunde

    2012-05-01

    Full Text Available Abstract Background Basketball is the second most popular sport in Nigeria after football and is commonly played by adolescents. Prospective studies on adolescent basketball players in Nigeria are lacking. Such studies will help to develop injury counter-measures. Hence, this study aimed at determining the incidence and pattern of injuries among adolescent basketball players in Nigeria. Methods A prospective observational study involving 141 adolescent basketball players (75 boys and 66 girls; with age range 15 – 18 years who participated in the 2010 National Finals of the Nigeria Nestlé Milo Basketball Competition. Basketball-related injury data were collected by an assessor during the competition using a standardized basketball injury report form. Data were analyzed using descriptive and inferential statistics. Results A total of 32 injuries were recorded with an incidence of 22.7 injuries per 100 participants same for boys and girls. This is equivalent to 1.1 injury per match for boys and 0.9 injuries per match for girls. Jumping/landing was the most common cause of injury (28.1%, N = 9. Most of the injuries were at the lower extremities (75%, N = 24; with majority at the knee joint (40.6%, N = 13. Ligament sprain was the most common types of injury. The pattern of injuries among boys did not significantly differ from that of girls (P > 0.05. Most injuries (N = 13, 41% occurred in the offensive half of the court and cryotherapy was the most frequently used treatment modality. Conclusion The overall incidence of match injury among adolescent amateur basketball players during a national competition in Nigeria was 22.7 injuries per 100 participants; equivalence of 1.0 injury per match. The pattern of injuries was similar in both genders and consistent with what has been previously reported in literature for adolescent basketball players. Exercise-based injury prevention programmes aimed at improving core strength and

  11. 探析大学生篮球运动导致的髌骨软化症%Analysis of the Causes of College Students Playing Basketball due to Chondromalacia Patella

    Institute of Scientific and Technical Information of China (English)

    阙祥勇; 李新志

    2016-01-01

    The Chondromalacia patella is a common Chronic injure disease in College Basketball games,In this article,through the anatomic characteristics of the knee,Basketball Action Feature and College Basketball own characteristics,the author analyzes biome-chanical situation of the patella when College students playing Basketball,In order to find effective treatment methods and preventive measures.%髌骨软化症是大学生篮球运动中常见的慢性损伤性疾病,本文通过篮球运动的动作特点和大学生篮球运动的自身特点分析大学生篮球运动时髌骨的生物力学情况,探析大学生篮球运动导致的髌骨软化症机制,从而寻找有效的治疗方法和预防措施。

  12. Development and Validation of the Basketball Offensive Game Performance Instrument

    Science.gov (United States)

    Chen, Weiyun; Hendricks, Kristin; Zhu, Weimo

    2013-01-01

    The purpose of this study was to design and validate the Basketball Offensive Game Performance Instrument (BOGPI) that assesses an individual player's offensive game performance competency in basketball. Twelve physical education teacher education (PETE) students playing two 10-minute, 3 vs. 3 basketball games were videotaped at end of a…

  13. Forward study on the amateur arts

    NARCIS (Netherlands)

    Andries van den Broek

    2010-01-01

    Original title: Toekomstverkenning kunstbeoefening Singing, playing an instrument, painting, sculpting, amateur dramatics, making films, writing a blog or a song…: almost half the Dutch population are engaged in artistic activity occasionally or even frequently. They give expression to this

  14. Women Basketball Pioneers in China

    Institute of Scientific and Technical Information of China (English)

    1999-01-01

    In 1931, a Chinese women’s basketball team played amatch abroad for the first time. In that tournament against theJapanese, they achieved a stellar record of nine wins and onetie. The following story is based on the recollections of WangLan, who played guard for the team 67 years ago.

  15. Safety Tips: Basketball (For Parents)

    Science.gov (United States)

    ... that he or she is playing too much basketball, work with coaches to try a reduced or modified schedule. A Few Other Reminders If it's on-court and serious, make sure a responsible adult — be it a coach, parent, or referee — is on hand. Kids probably won't need ...

  16. Basketball injuries in children

    Energy Technology Data Exchange (ETDEWEB)

    Gaca, Ana Maria [Duke University Health Systems, Division of Pediatric Radiology, Department of Radiology, Durham, NC (United States); McGovern-Davison Children' s Health Center, Division of Pediatric Radiology, Department of Radiology, Durham, NC (United States)

    2009-12-15

    Basketball is a popular, worldwide sport played outdoors and indoors year-round. Patterns of injury are related to abrupt changes in the athlete's direction, jumping, contact between athletes, the hard playing surface and paucity of protective equipment. Intensity of play and training in the quest of scholarships and professional careers is believed to contribute to an increasing occurrence of injury. Radiologists' appreciation of the breadth of injury and its relation to imaging and clinical findings should enhance the care of these children. Some of the patterns of injury are well known to radiologists but vary due to age- and size-related changes; the growing skeleton is affected by differing susceptibilities from biomechanical stresses at different sizes. Beyond screening radiographs, the accuracy of MRI and CT has improved diagnosis and treatment plans in this realm. Investigations to detect symptoms and signs in an attempt to prevent the tragedy of sudden cardiac death in basketball players may lead to MRI and CTA studies that compel radiologists to evaluate cardiac function along with myocardial and coronary artery anatomy. Worthy of mention also is the female athlete triad of disordered eating, amenorrhea, and osteoporosis that is observed in some young women participating in this and other sports. (orig.)

  17. Basketball and Poetry.

    Science.gov (United States)

    Coy, John

    2000-01-01

    Discussion of the use of movement in writing classes focuses on a poetry class for eight- to twelve-year-olds that incorporated basketball. Describes listening to the sounds of basketball, recalling memories of basketball, breathing and movement, reading aloud to others, revisions, and public reading for families and friends. (LRW)

  18. Astronomical Spectroscopy for Amateurs

    CERN Document Server

    Harrison, Ken M

    2011-01-01

    Astronomical Spectroscopy for Amateurs is a complete guide for amateur astronomers who are looking for a new challenge beyond astrophotography. The book provides a brief overview of the history and development of the spectroscope, then a short introduction to the theory of stellar spectra, including details on the necessary reference spectra required for instrument testing and spectral comparison. The various types of spectroscopes available to the amateur are then described. Later sections cover all aspects of setting up and using various types of commercially available and home-built spectroscopes, starting with basic transmission gratings and going through more complex models, all the way to the sophisticated Littrow design. The final part of the text is about practical spectroscope design and construction. This book uniquely brings together a collection of observing, analyzing, and processing hints and tips that will allow the amateur to build skills in preparing scientifically acceptable spectra data. It...

  19. Recognition accuracy by experienced men and women players of basketball.

    Science.gov (United States)

    Millslagle, Duane G

    2002-08-01

    This study examined 30 experienced basketball players' recognition accuracy by sex, playing position (guard, forward, and center), and situations in the game of basketball. The study used a perceptual cognitive paradigm in which subjects viewed slides of structured and unstructured game situations and accurately recognized the presence or absence of the basketball. A significant difference in recognition accuracy by sex, players' position, and structure of the game situation was found. Male players' recognition accuracy was better than the female players'. The recognition accuracy of subjects who played guard was better than that of subjects who played forward or center. The players' recognition accuracy was more accurate when observing structured plays versus unstructured plays. The conclusion of this study suggested that experienced basketball players differ in their cognitive and visual searching processes by sex and player position within the sport of basketball.

  20. FAQs about practising the amateur arts

    NARCIS (Netherlands)

    Andries van den Broek

    2010-01-01

    Original title: FAQs over kunstbeoefening in de vrije tijd Singing, playing an instrument, painting, sculpting, amateur dramatics, making films, writing a blog or a song…: almost half the Dutch population are engaged in artistic activity occasionally or even frequently. They give expression to

  1. Opportunities for practising the amateur arts

    NARCIS (Netherlands)

    Andries van den Broek

    2010-01-01

    Original title: Mogelijkheden tot kunstbeoefening in de vrije tijd Singing, playing an instrument, painting, sculpting, amateur dramatics, making films, writing a blog or a song…: almost half the Dutch population are engaged in artistic activity occasionally or even frequently. They give

  2. Physics of basketball

    Science.gov (United States)

    Brancazio, Peter J.

    1981-04-01

    Does a knowledge of physics help to improve one's basketball skills? Several applications of physical principles to the game of basketball are examined. The kinematics of a basketball shot is studied, and criteria are established for determining the best shooting angle at any given distance from the basket. It is found that there is an optimum shooting angle which requires the smallest launching force and provides the greatest margin for error. Some simple classroom illustrations of Newtonian mechanics based on basketball are also suggested.

  3. Study on the Playing Style of WCBA Teams and the Offence Strategy Characteristics of Bayi Women's Basketball Team%WCBA球队打法风格和八一女篮进攻战术特点研究

    Institute of Scientific and Technical Information of China (English)

    袁靓; 杨跃青; 陶小岗

    2011-01-01

    历经十多年的不断改革与发展,我国女子篮球职业联赛(WCBA)已经逐步走向成熟。联盟的参赛队伍也逐渐形成了各自独特的风格和打法特点。作为WCBA的领军队伍之一,八一女篮更是凭借自身优秀的运动人才和科学有效的战术打法,长期以来一直占据着联盟中的霸主地位。结合多年WCBA征战经验以及在八一女篮的随队训练、比赛实践,综合运用文献资料法,录像观察法,数理统计法等方法,对WCBA参赛队伍的技战术风格进行了概括总结,对八一女篮进攻战术的特点进行了深入分析,是八一女篮未来科学训练,进一步提高进攻技战术水平的重要参考。同时也可作为WCBA其它各队深入了解八一女篮进攻战术特点的重要参考。%WCBA in China has experienced lots of reforms and developments during the past decade, and its teams have gradually formed their own characteristics in the way they offense. As one of the top teams in the league, Bayi Women' s Basketball team has many advantages such as its talented players and effective strate- gies, and has entitled many WCBA championships. This paper summarizes the playing style of WCBA teams as well as the offence strategy characteristics of Bayi women' s basketball team. The authors believe that this paper could help Bayi women' s basketball team to achieve more successes in the future, and be treated as an important reference for the other teams in the league.

  4. Physiological demands of competitive basketball.

    Science.gov (United States)

    Narazaki, K; Berg, K; Stergiou, N; Chen, B

    2009-06-01

    The aim of this study was to assess physiological demands of competitive basketball by measuring oxygen consumption (VO2) and other variables during practice games. Each of 12 players (20.4 +/- 1.1 years) was monitored in a 20-min practice game, which was conducted in the same way as actual games with the presence of referees and coaches. VO2 was measured by a portable system during the game and blood lactate concentration (LA) was measured in brief breaks. Subjects were also videotaped for time-motion analysis. Female and male players demonstrated respective VO2 of 33.4 +/- 4.0 and 36.9 +/- 2.6 mL/kg/min and LA of 3.2 +/- 0.9 and 4.2 +/- 1.3 mmol/L in the practice games (P>0.05). They spent 34.1% of play time running and jumping, 56.8% walking, and 9.0% standing. Pre-obtained VO(2max) was correlated to VO(2) during play (r=0.673) and to percent of duration for running and jumping (r=0.935 and 0.962 for females and males, respectively). This study demonstrated a greater oxygen uptake for competitive basketball than that estimated based on a previous compendium. The correlation between aerobic capacity and activity level suggests the potential benefit of aerobic conditioning in basketball.

  5. Random Walk Picture of Basketball Scoring

    CERN Document Server

    Gabel, Alan

    2011-01-01

    We present evidence, based on play-by-play data from all 6087 games from the 2006/07--2009/10 seasons of the National Basketball Association (NBA), that basketball scoring is well described by a weakly-biased continuous-time random walk. The time between successive scoring events follows an exponential distribution, with little memory between different scoring intervals. Using this random-walk picture that is augmented by features idiosyncratic to basketball, we account for a wide variety of statistical properties of scoring, such as the distribution of the score difference between opponents and the fraction of game time that one team is in the lead. By further including the heterogeneity of team strengths, we build a computational model that accounts for essentially all statistical features of game scoring data and season win/loss records of each team.

  6. The price of anarchy in basketball

    Science.gov (United States)

    Skinner, Brian

    2010-03-01

    Optimizing the performance of a basketball offense may be viewed as a network problem, wherein each play represents a ``pathway'' through which the ball and players may move from origin (the in-bounds pass) to goal (the basket). Effective field goal percentages from the resulting shot attempts can be used to characterize the efficiency of each pathway. Inspired by recent discussions of the ``price of anarchy'' in traffic networks, this paper makes a formal analogy between a basketball offense and a simplified traffic network. The analysis suggests that there may be a significant difference between taking the highest-percentage shot each time down the court and playing the most efficient possible game. There may also be an analogue of Braess's Paradox in basketball, such that removing a key player from a team can result in the improvement of the team's offensive efficiency.

  7. Ιnjuries in greek amateur soccer players

    OpenAIRE

    GEORGIOS TSIGANOS

    2007-01-01

    The purpose of this study was to record retrospectivelythe epidemiology of injuries in amateur Greek soccer players. Three hundred and one (301) amateur soccer playersvoluntarily participated in the study. Participants answered aspecially-designed questionnaire that included questionsabout demographics, playing surface, division, position,hours of training plus participation, the use of stretching orprophylactic tape, the injury mechanism, the location andtype of injury. During the five years...

  8. Basketball. NAGWS Guide, July 1979 - July 1980.

    Science.gov (United States)

    Polivino, Geri; And Others

    This guidebook provides the 1979-1980 updated rules and regulations for officiating women's basketball competition. Specifications regarding equipment construction, duties of officials, scoring and timing procedures, definition of playing terms, and player eligibility are provided. Step-by-step instruction for facilitating smooth and…

  9. Lesiones en corredores amateurs

    OpenAIRE

    Natale, Vanesa

    2011-01-01

    Se realizó un estudio tomando como muestra a 100 corredores amateurs de la ciudad de Mar del Plata, en la cual el objetivo general fue determinar cuáles son las patologías más frecuentes en corredores. Correr no es solo un deporte en si mismo sino que tiene elementos de otras actividades deportivas, es decir, que las lesiones de los corredores también son comunes en otros tipos de deportes. El número de deportistas aumenta diariamente y al mismo tiempo aumentan el número de per...

  10. ANTHROPOLOGICAL PROFILE OF BASKETBALL REFEREES

    OpenAIRE

    Rupčić, Tomislav; Matković, Bojan; Knjaz, Damir

    2010-01-01

    Basketball is a very complex and dynamic sport activity characterized by qiuck and frequent exchanges of attack and defensive actions. Both the players and the referees make the integral part of the basketball game, and in the final result of a basketball match their role is of great importance, sometimes even decisive. The purpose of this research is to identify the anthropological profile of the best Croatian basketball referees. The examinees sample group consisted ...

  11. Differences in perceived competence and physical activity levels during single-gender modified basketball game play in middle school physical education

    NARCIS (Netherlands)

    Slingerland, Menno; Haerens, Leen; Cardon, Greet; Borghouts, Lars

    2013-01-01

    Creating environments in physical education (PE) that foster perceived competence and physical activity during gender-mixed game play lessons is a challenge, especially with adolescent girls. This study is a small experiment in one PE lesson that aimed to increase the perceived competence and in-cla

  12. Differences in perceived competence and physical activity levels during single-gender modified basketball game play in middle school physical education

    NARCIS (Netherlands)

    Greet Cardon; dr. Lars B. Borghouts; Leen Haerens; drs Menno Slingerland

    2013-01-01

    Creating environments in physical education (PE) that foster perceived competence and physical activity during gender-mixed game play lessons is a challenge, especially with adolescent girls. This study is a small experiment in one PE lesson that aimed to increase the perceived competence and in-cla

  13. Differences in Perceived Competence and Physical Activity Levels during Single-Gender Modified Basketball Game Play in Middle School Physical Education

    Science.gov (United States)

    Slingerland, Menno; Haerens, Leen; Cardon, Greet; Borghouts, Lars

    2014-01-01

    Creating environments in physical education (PE) that foster perceived competence and physical activity during gender-mixed game play lessons is a challenge, especially with adolescent girls. This study is a small experiment in one PE lesson that aimed to increase the perceived competence and in-class physical activity in girls, by applying a…

  14. A Random Walk Picture of Basketball

    Science.gov (United States)

    Gabel, Alan; Redner, Sidney

    2012-02-01

    We analyze NBA basketball play-by-play data and found that scoring is well described by a weakly-biased, anti-persistent, continuous-time random walk. The time between successive scoring events follows an exponential distribution, with little memory between events. We account for a wide variety of statistical properties of scoring, such as the distribution of the score difference between opponents and the fraction of game time that one team is in the lead.

  15. Cardiovascular stress on an elite basketball referee during national competition.

    Science.gov (United States)

    Leicht, A S

    2004-08-01

    This case report examined the cardiovascular stress imposed on an experienced elite basketball referee during national competition. The average heart rate was similar for all matches, approximated 73% of maximum heart rate, and was experienced for most (>63%) of the match. Similar relative exercise intensity was demonstrated regardless of match play (men's v women's) and officiating type (two v three-referee). Further study is needed to document the physiological characteristics of elite basketball referees for greater performance.

  16. 不同节奏下奥运会男篮比赛技术统计差异分析%An analysis of technical statistic differences between Olympic basketball games played at different paces

    Institute of Scientific and Technical Information of China (English)

    张学领

    2014-01-01

    通过对奥运会男篮比赛在不同节奏下获胜球队和失败球队的数据对比以及不同节奏下技术统计指标的差异分析,探索影响篮球比赛节奏的技术因素及影响比赛胜负的因素;通过中国队与对手的比较,寻找中国队在历届奥运会存在的问题,为今后的训练和比赛提供参考依据。研究结果显示:在较快节奏下胜队更能发挥出实力优势,表现出较高的绩效;在较慢的节奏中弱队能够减少与强队技术统计数据上的差距。2分投、抢断、2分中、失误决定着控球权次数,影响着比赛节奏的快慢。中国队在快节奏比赛中综合表现很差;一般节奏下2分球命中率较低,3分投篮出手机会较少,助攻较少,失误较多;在慢节奏下中国队才能正常发挥自己的水平,胜率较高。%By comparing the data of winning and losing teams in Olympic men’s basketball games played at different paces, and by analyzing technical statistic differences between the games played at different paces, the author probed into basketball game pace affecting technical factors and game outcome affecting factors; by comparing team China with its opponents, the author sought for problems which team China had in all previous Olympic Games, so as to provide a refer-ence criterion for training and competition henceforward. The author revealed the following findings: at a faster pace, the winning teams were more capable of exerting their strength advantage, showing higher performance; at a slower pace, the weak teams could reduce their differences form the strong teams in terms of technical statistic data; two-point shots, steals, two-point winners and turnovers determined the number of ball possessions, affected the pace of a game; in fast pace games, team China had very poor comprehensive performance; at an ordinary pace, team China had a low two-point win-ner rate, few three-point shooting opportunities, few assists

  17. From the Myth of Level Playing Fields to the Reality of a Finite Planet: Comment on "A Global Social Support System: What the International Community Could Learn From the United States' National Basketball Association's Scheme for Redistribution of New Talent".

    Science.gov (United States)

    Labonté, Ronald

    2015-11-19

    Despite the mythology that the global economy with its trade rules creates a 'level playing field,' international trade has never involved 'level players.' The inequalities in outcomes generated by the more powerful winning more frequently has led to innovative ideas for ex post redistribution to make the matches between the players both fairer, and in the analogy to basketball used by the authors, more interesting and even more competitive. The proposal for a Global Social Protection Fund, financed by a small tax on the winners to enhance social protection spending for the losers, presumably increasing the latter's capabilities to compete more effectively in the global market game, is one such idea. It has much to commend it. Several problems, however, stand in its way, apart from those inherent within nations themselves and to which the authors give some attention. First, much global trade is now intra-firm rather than international, making calculations of which nations win or lose exceedingly difficult. Second, tax havens persist without the transparency and global regulatory oversights that would allow a better rendering of where winnings are stashed. Third, pre-distribution inequalities (those arising from market activities before government tax and transfer measures apply) are still increasing as labour's power to wrestle global capital into some ameliorative social contract diminishes. Fourth, there are finite limits to a planet on the cusp of multiple environmental crises. These problems do not diminish the necessity of alternative policy playbooks such as the proposed Fund, but point to the need to embrace the new Sustainable Development Goals (SDGs) as a single set, such that economic growth for the bottom half of humanity includes deep structural reforms to both pre-distribution and redistribution, if the targets for environmental survival are to be met.

  18. Optimal Strategy in Basketball

    CERN Document Server

    Skinner, Brian

    2015-01-01

    This book chapter reviews some of the major principles associated with optimal strategy in basketball. In particular, we consider the principles of allocative efficiency (optimal allocation of shots between offensive options), dynamic efficiency (optimal shot selection in the face of pressure from the shot clock), and the risk/reward tradeoff (strategic manipulation of outcome variance). For each principle, we provide a simple example of a strategic problem and show how it can be described analytically. We then review general analytical results and provide an overview of existing statistical studies. A number of open challenges in basketball analysis are highlighted.

  19. Metabolic optimisation of the basketball free throw.

    Science.gov (United States)

    Padulo, Johnny; Attene, Giuseppe; Migliaccio, Gian Mario; Cuzzolin, Francesco; Vando, Stefano; Ardigò, Luca Paolo

    2015-01-01

    The free throw (FT) is a fundamental basketball skill used frequently during a match. Most of actual play occurs at about 85% of maximum heart rate (HR). Metabolic intensity, through fatigue, may influence a technically skilled move as the FT is. Twenty-eight under 17 basketball players were studied while shooting FTs on a regular indoor basketball court. We investigated FT accuracy in young male basketball players shooting at three different HRs: at rest, at 50% and at 80% of maximum experimentally obtained HR value. We found no significant FT percentage difference between rest and 50% of the maximum HR (FT percentage about 80%; P > 0.05). Differently, at 80% of the maximum HR the FT percentage decreased significantly by more than 20% (P < 0.001) down to about 60%. No preliminary warm-up is needed before entering game for the FT accuracy. Furthermore, we speculate that time-consuming, cooling-off routines usually performed by shooters before each FT may be functional to improve its accuracy.

  20. 75 FR 20951 - Amendment of the Commission's Rules Regarding Amateur Radio Service Communications During...

    Science.gov (United States)

    2010-04-22

    ... COMMISSION 47 CFR Part 97 Amendment of the Commission's Rules Regarding Amateur Radio Service Communications...-based communications for emergency responders, experience has shown that amateur radio has played an... radio communication at its disposal to provide essential communication needs in connection with...

  1. Basketballs and Mortarboards.

    Science.gov (United States)

    Flygare, Thomas J.

    1985-01-01

    Considers two lost court suits: in one, a basketball referee was sued for a "bad" call that led to a loss by the team promoted on the litigant's merchandise; in the other, a university was sued for permitting graduating students to throw their mortarboards, one of which injured the litigant. (PGD)

  2. Basketball teams as strategic networks.

    Science.gov (United States)

    Fewell, Jennifer H; Armbruster, Dieter; Ingraham, John; Petersen, Alexander; Waters, James S

    2012-01-01

    We asked how team dynamics can be captured in relation to function by considering games in the first round of the NBA 2010 play-offs as networks. Defining players as nodes and ball movements as links, we analyzed the network properties of degree centrality, clustering, entropy and flow centrality across teams and positions, to characterize the game from a network perspective and to determine whether we can assess differences in team offensive strategy by their network properties. The compiled network structure across teams reflected a fundamental attribute of basketball strategy. They primarily showed a centralized ball distribution pattern with the point guard in a leadership role. However, individual play-off teams showed variation in their relative involvement of other players/positions in ball distribution, reflected quantitatively by differences in clustering and degree centrality. We also characterized two potential alternate offensive strategies by associated variation in network structure: (1) whether teams consistently moved the ball towards their shooting specialists, measured as "uphill/downhill" flux, and (2) whether they distributed the ball in a way that reduced predictability, measured as team entropy. These network metrics quantified different aspects of team strategy, with no single metric wholly predictive of success. However, in the context of the 2010 play-offs, the values of clustering (connectedness across players) and network entropy (unpredictability of ball movement) had the most consistent association with team advancement. Our analyses demonstrate the utility of network approaches in quantifying team strategy and show that testable hypotheses can be evaluated using this approach. These analyses also highlight the richness of basketball networks as a dataset for exploring the relationships between network structure and dynamics with team organization and effectiveness.

  3. Basketball teams as strategic networks.

    Directory of Open Access Journals (Sweden)

    Jennifer H Fewell

    Full Text Available We asked how team dynamics can be captured in relation to function by considering games in the first round of the NBA 2010 play-offs as networks. Defining players as nodes and ball movements as links, we analyzed the network properties of degree centrality, clustering, entropy and flow centrality across teams and positions, to characterize the game from a network perspective and to determine whether we can assess differences in team offensive strategy by their network properties. The compiled network structure across teams reflected a fundamental attribute of basketball strategy. They primarily showed a centralized ball distribution pattern with the point guard in a leadership role. However, individual play-off teams showed variation in their relative involvement of other players/positions in ball distribution, reflected quantitatively by differences in clustering and degree centrality. We also characterized two potential alternate offensive strategies by associated variation in network structure: (1 whether teams consistently moved the ball towards their shooting specialists, measured as "uphill/downhill" flux, and (2 whether they distributed the ball in a way that reduced predictability, measured as team entropy. These network metrics quantified different aspects of team strategy, with no single metric wholly predictive of success. However, in the context of the 2010 play-offs, the values of clustering (connectedness across players and network entropy (unpredictability of ball movement had the most consistent association with team advancement. Our analyses demonstrate the utility of network approaches in quantifying team strategy and show that testable hypotheses can be evaluated using this approach. These analyses also highlight the richness of basketball networks as a dataset for exploring the relationships between network structure and dynamics with team organization and effectiveness.

  4. Concussions in wheelchair basketball.

    Science.gov (United States)

    Wessels, Karla K; Broglio, Steven P; Sosnoff, Jacob J

    2012-02-01

    To estimate the incidence rate of concussions in wheelchair basketball. Survey. Wheelchair basketball tournaments during the 2009 to 2010 season. Wheelchair basketball players (N=263) ranging in age from 18 to 60 years. Not applicable. Participants completed a survey on their concussion history including how many concussions they have sustained, how many days they refrained from physical activity because of injury, to whom they reported their injury, and reasons for not reporting an injury if they did not. Participants also provided demographic information about their disability, age, sex, and length of wheelchair use and sports participation. Within the sample of 263 wheelchair basketball players, 6.1% reported experiencing a concussion in the current season. Of those experiencing concussions during the current season, 44% did not report their concussion. Of those not reporting the incident, 67% did not because they did not want to be removed from physical activity. Analysis by sex indicated that 5.82% of the male athletes sustained a concussion during the current season, and 14.36% had sustained an injury during their athletic career. Female athletes, however, sustained concussions at a higher rate, with 6.67% having concussions during the current season and 30.6% during their athletic careers. Women were also 2.5 times more likely to sustain a concussion than men. Athletes were most likely to report their concussion to their coach (60% of concussed athletes). The current investigation was consistent with previous research in that women were more likely to sustain a concussion than men, and injury rates were similar to those in able-bodied basketball. Further work is needed in concussion assessment in persons with disability, as well as greater education concerning concussion in disability sports. Copyright © 2012 American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved.

  5. Basketball Surfaces and Coefficient of Restitution

    OpenAIRE

    Kristyn Peacock; Faith Pearson

    2015-01-01

    A basketball was released from varying drop heights to simulate the impact speeds of a typical soft, medium, and hard dribble. This was repeated across four different surfaces that students typically play on–exposed aggregate concrete, maple wood flooring, EPI Outdoor Sport flooring, and playground rubber mesh. From the measured drop and bounce heights, the coefficient of restitution(COR)was calculated. It was concluded that only playground rubber mesh had COR’s below the regula...

  6. Can you play basketball in space?

    DEFF Research Database (Denmark)

    Jacobsen, Aase Roland; Knudsen, Ole J.

    2004-01-01

    AbstractInspired by NASA’s Activity Kit “Toys in Space” a live program was conducted during World Space Week 2003 at The Steno Museum Planetarium (in collaboration with Orion Planetarium and Tycho Brahe Planetarium).Many well known toys act familiar because of a dominating force downwards caused ...

  7. Can you play basketball in space?

    DEFF Research Database (Denmark)

    Jacobsen, Aase Roland; Knudsen, Ole J.

    2004-01-01

    AbstractInspired by NASA’s Activity Kit “Toys in Space” a live program was conducted during World Space Week 2003 at The Steno Museum Planetarium (in collaboration with Orion Planetarium and Tycho Brahe Planetarium).Many well known toys act familiar because of a dominating force downwards caused...... to a qualified guess on how toys would behave in microgravity. Six toys were selected and after a hands-on demonstration in the planetarium we saw the same toys demonstrated by NASA astronauts in the Space Shuttle, so we could see if we had come to the right conclusions!...

  8. Shooting for Lithuania: Migration, national identity and men's basketball in the East of England

    DEFF Research Database (Denmark)

    Evans, Adam Brian; Piggott, David

    2016-01-01

    a figurational framework to investigate the lived experiences of basketball amongst male Lithuanian migrants in the rural east of England. Semi-structured interviews highlighted participants’ motivations to migrate, their acculturation experiences and the role that basketball played during their sojourn...

  9. The basketball problem

    Science.gov (United States)

    Schröer, H.

    In basketball there is the problem of hitting a basket at a determined distance and a determined height. The quantities that can be changed during the inclined throw are the initial velocity and the angle of throw. At first we neglect the air resistance. Then we treat the same problem in a medium (liquid, gas) with constant density. We obtain two differential equations. Then we view special cases of the retarding force. There is an english and a german edition.

  10. Amateur knowledge: public art and citizen science.

    Science.gov (United States)

    Rogers, Hannah

    2011-01-01

    The science studies literatures on amateurs and citizen science have remained largely unconnected despite similarities between the two categories. The essay connects amateur knowledge and citizen science through examples from public art. Through an analysis of the use of the term "amateur" by contemporary artists working to engage the public in critiques of science, connections in the ideals of democratic knowledge making by amateurs and citizen scientists are further explored.

  11. Teaching Physics with Basketball

    Science.gov (United States)

    Chanpichai, N.; Wattanakasiwich, P.

    2010-07-01

    Recently, technologies and computer takes important roles in learning and teaching, including physics. Advance in technologies can help us better relating physics taught in the classroom to the real world. In this study, we developed a module on teaching a projectile motion through shooting a basketball. Students learned about physics of projectile motion, and then they took videos of their classmates shooting a basketball by using the high speed camera. Then they analyzed videos by using Tracker, a video analysis and modeling tool. While working with Tracker, students learned about the relationships between three kinematics graphs. Moreover, they learned about a real projectile motion (with an air resistance) through modeling tools. Students' abilities to interpret kinematics graphs were investigated before and after the instruction by using the Test of Understanding Graphs in Kinematics (TUG-K). The maximum normalized gain or is 0.77, which indicated students' improvement in determining displacement from the velocity-time graph. The minimum is 0.20, which indicated that most students still have difficulties interpreting the change in velocity from the acceleration-time graph. Results from evaluation questionnaires revealed that students also satisfied with the instructions that related physics contents to shooting basketball.

  12. Basketball Game as Psychology Experiment.

    Science.gov (United States)

    Polyson, James A.; Blick, Kenneth A.

    1985-01-01

    To help undergraduate psychology students learn basic concepts in the experimental method, a basketball game is construed as a psychology experiment. Although no formal evaluation of the effectiveness of the basketball analogy as a learning device was conducted, students responded favorably. (RM)

  13. ‘Everyone can be a designer’: Amateurs in Contemporary Fashion Culture

    DEFF Research Database (Denmark)

    Mackinney-Valentin, Maria; Holt, Fabian

    2015-01-01

    This article offers an analytical perspective on the implications of recent media evolutions for the conventional roles of the designer, with a particular emphasis on the changing relation between amateur and professional design in fashion culture. The article builds on the recent media studies l...... educators approach and strategically manage these new relationships and distributed forms of creativity....... is the process playing out in fashion? And what are the implications of this process for designers and design education? The article argues that media have become a key context for understanding the changing dynamics between professionals and amateurs and the evolution of more distributed forms of design...... creativity. The article is a conceptual paper that begins by situating the evolution of amateur design in theories of media and modernity to offer a contemporary theorization of amateur design and to establish an analytical perspective from which core aspects of the changing amateur/industry divide...

  14. A survey of orofacial injuries among basketball players.

    Science.gov (United States)

    Azodo, Clement Chinedu; Odai, Chukwuemeka Danielson; Osazuwa-Peters, Nosayaba; Obuekwe, Ozoemene Ndubuisi

    2011-02-01

    To determine the prevalence of orofacial injuries among basketball players in Benin City, Nigeria and to survey the athletes' awareness, attitude and use of mouthguards. A cross-sectional survey of basketball players in the standard basketball arena in Benin City was conducted between November 2009 and January 2010. A self-administered questionnaire elicited information on demography, the prevalence of oral and facial injuries, distribution of site and cause of orofacial injuries, athletes' knowledge, attitudes and usage of mouthguards. Data were subjected to descriptive statistics and Chi square test. The response rate was 78%. Of the 156 respondents, 79.5% were male and 20.5% female, with a mean age of 23.1 years. The distributions was amateurs (61.5%) professionals (38.5%). The mean number of injuries in previous 12 months was 3.7 ± 1.8. The prevalence of both facial and oral injuries among the respondents was 62.8% with the lip and gingiva most commonly involved respectively. The common causes of the orofacial injury reported were from elbows of opponents, falling and collisions with other players. The prevalence of injury was not significantly associated with demography, category, competition and duration of participation. More than half had heard and seen mouthguards and the coach was the leading source of information. The reasons for non-use of mouthguard were mostly ignorance, non-availability and non-affordability. The high prevalence of orofacial injury among basketball players reported in this study justifies the need for multidisciplinary injury prevention interventional approach with emphasis on the rules of the games. © 2011 FDI World Dental Federation.

  15. Young Radio Amateurs Speak English.

    Science.gov (United States)

    Freund, Bilha

    1997-01-01

    In an Israeli elementary school program to stimulate students' development of oral English skills, students write dialogs and conversation themes in areas of interest, then practice and conduct the conversations with amateur radio operators around the world. Challenges and successes are detailed. (MSE)

  16. Amateur Community and ``Citizen Science''

    Science.gov (United States)

    Henden, Arne A.

    2012-04-01

    Citizen Science is the act of collecting or analyzing data by enlisting the help of volunteers who may have no specific scientific training. The workshop discussed how ``Citizen Science'' fits into time-domain astronomy, what the roles of such volunteers might be, and how amateur astronomers can help in the new era of surveys.

  17. Do Basketball Players Have a High Risk of Pulmonary Embolism? A Scoping Review.

    Science.gov (United States)

    Casals, Martí; Martínez, Jose A; Caylà, Joan A; Martín, Vicente

    2016-03-01

    Pulmonary embolism (PE) is a serious preventable disease that requires urgent care. In recent years, there have been several reports in the media about basketball players experiencing PE. The aim of the present study was to assess whether there is a need for in-depth studies to determine whether basketball players constitute a group particularly at risk of PE and to describe some hypotheses to be investigated. We reviewed original articles about PE among professional and amateur basketball players in the scientific literature (PubMed) and the Internet (Google search) for the seasons 2010-2011 to 2014-2015, both of which were included. We used search strategies that included some combination of PE-related terms. Rates of PE were calculated and were compared with those obtained from other studies. Of the 15 cases detected, the majority were men (66.7%), mean ages being 28.8 yr among males and 20.4 yr among females. We focused on six cases which, were detected among National Basketball Association and Asociación de Clubes de Baloncesto basketball players, resulting in an average incidence of 1.27 and 2.06 cases per 1000 players per year in the National Basketball Association and Asociación de Clubes de Baloncesto, respectively. This incidence is much higher than that observed in general population studies for the same age group. Basketball players seem to have a higher risk of PE than their peers from the general population. More studies are needed to confirm these findings and identify factors predisposing them to PE to contribute to its prevention.

  18. Anthropometric Characteristics of Spanish Professional Basketball Players

    Directory of Open Access Journals (Sweden)

    Vaquera Alejandro

    2015-06-01

    Full Text Available The study of elite basketball players’ anthropometric characteristics alongside those of body composition contributes significantly to their profiling as professional athletes and plays an important role in the selection process, as these characteristics can have a significant impact on performance. In the current study, 110 professional basketball players from a series of Spanish professional Leagues (ACB, LEB and EBA and youth level National Teams (U20 and U18 had their anthropometric profiles measured and compared to determine differences between them. Furthermore, all 110 players were divided into three different categories according to their playing position: guards, forwards and centres. The results obtained show no significant differences between players in different competitions in weight, height and the sum of skinfolds. Nonetheless, there were several differences related to body fat content (13.03% in ACB players and 10.52% in the lower categories and National Teams. There were also several differences found between the different playing positions amongst all playing levels in body mass (79.56 ± 2.41, 91.04 ± 1.51 and 104.56 ± 1.73 kg, height (182.28 ± 0.96, 195.65 ± 1.00 and 204.08 ± 0.67 cm, skinfold distribution and perimeters. However, there were no significant differences in body fat content between the different playing positions. The conclusions obtained from this study provide a better understanding to basketball specialists regarding the selection process of players at the elite level, especially on the transition from youth elite programs to men’s elite leagues.

  19. The Effects of Rule Changes on Basketball Game Results in the Men’s European Basketball Championships

    Directory of Open Access Journals (Sweden)

    Pluta Beata

    2014-12-01

    Full Text Available Purpose. The aim the study was to analyze the effects of rule changes in men’s professional basketball. Univariate analysis examined game statistics, concentrating only on points scores from selected basketball games and did not include situational variables that may have affected game dynamics. Methods. Data on the results of all games played in the men’s European Basketball Championships between 1935 and 2013 were collected and subjected to statistical analysis. Six main rule modifications which directly affected game play were identified in chronological order. Results. The number of points scored and allowed changed significantly after 1956. The greatest changes in game scores as a result of rule modifications were after rule changes in 1956 and after 1984. Conclusions. Rule changes involve processes that modify game conditions and should be validated following reflective analysis.

  20. 第30届奥运会男篮比赛的核心致胜因素分析%An analysis of core factors for winning men’s basketball games played in the 30th Olympic Games

    Institute of Scientific and Technical Information of China (English)

    郭永波; 吴泽泰

    2014-01-01

    The authors applied Spearman’s two column rank correlation analysis method to calculate the correla-tions between rankings listed for and techniques used in men’s basketball games played in the 30th London Olympic Games, used top 12 indexes arranged in the order of such correlation coefficients to compare the differences be-tween strong, medium and weak teams in order to verify various factors for winning, and therefore drew the fol-lowing conclusions:rankings were closely related to assists, 2-pointers, average points per game, misses and defen-sive rebounds;it can be known from index differences that ordinary factors for strong teams to win weak teams in group games were stronger individual offense ability, teamwork ability, defense aggressiveness and 3-point shooting ability;important factors for strong teams to win in elimination games were defense ability stronger than their op-ponents, stronger contest ability during offense, capability to make their opponents foul more and strong un-der-basket offense ability; competitions between strong teams were competitions of 3-pointers, rebounds, penalty shots and assists;core factors for strong teams to win were steady long shot technique, super strong individual of-fense ability, rebound snatching ability and inside scoring ability.%运用Spearman(斯皮尔曼)二列等级相关分析法计算第30届伦敦奥运会男篮比赛名次与技术相关关系,以此相关系数排序较高12项指标比较奥运会比赛强、中、弱3种水平队的差幅,求证获胜各种因素。因而得出,名次与助攻、2分球命中率次数及场均得分、失误、防守篮板有密切的关系。从指标差幅中可知,小组赛中强队胜弱队的一般制胜因素是较强的个人攻击能力、配合能力、防守攻击性和3分球远投能力。复赛中获胜强队的重要制胜因素是防守能力强于对手,进攻中对抗能力强,能更多地造成对方犯规和篮下攻击能力

  1. Evidence-based post-exercise recovery strategies in basketball.

    Science.gov (United States)

    Calleja-González, Julio; Terrados, Nicolás; Mielgo-Ayuso, Juan; Delextrat, Anne; Jukic, Igor; Vaquera, Alejandro; Torres, Lorena; Schelling, Xavier; Stojanovic, Marko; Ostojic, Sergej M

    2016-01-01

    Basketball can be described as a moderate-to-long duration exercise including repeated bouts of high-intensity activity interspersed with periods of low to moderate active recovery or passive rest. A match is characterized by repeated explosive activities, such as sprints, jumps, shuffles and rapid changes in direction. In top-level modern basketball, players are frequently required to play consecutive matches with limited time to recover. To ensure adequate recovery after any basketball activity (i.e., match or training), it is necessary to know the type of fatigue induced and, if possible, its underlying mechanisms. Despite limited scientific evidence to support their effectiveness in facilitating optimal recovery, certain recovery strategies are commonly utilized in basketball. It is particularly important to optimize recovery because players spend a much greater proportion of their time recovering than they do in training. Therefore, the main aim of this report is to facilitate useful information that may lead to practical application, based on the scientific evidence and applied knowledge specifically in basketball.

  2. Sports injuries in adolescents' ball games: soccer, handball and basketball.

    OpenAIRE

    Yde, J; Nielsen, A.B.

    1990-01-01

    In a prospective study of 302 adolescent players in three ball games (soccer, handball and basketball), 119 incurred injuries. The injury incidence (number of injuries per 1000 playing hours) was 5.6 in soccer, 4.1 in handball and 3.0 in basketball. Ankle sprains accounted for 25 per cent of the injuries, finger sprains 32 per cent, strains in the thigh and leg 10 per cent, and tendinitis/apophysitis 12 per cent. The most serious injuries were four fractures, one anterior cruciate ligament ru...

  3. Review of amateur meteor research

    Science.gov (United States)

    Rendtel, Jürgen

    2017-09-01

    Significant amounts of meteor astronomical data are provided by amateurs worldwide, using various methods. This review concentrates on optical data. Long-term meteor shower analyses based on consistent data are possible over decades (Orionids, Geminids, κ-Cygnids) and allow combination with modelling results. Small and weak structures related to individual stream filaments of cometary dust have been analysed in both major and minor showers (Quadrantids, September ε-Perseids), providing feedback to meteoroid ejection and stream evolution processes. Meteoroid orbit determination from video meteor networks contributes to the improvement of the IAU meteor data base. Professional-amateur cooperation also concerns observations and detailed analysis of fireball data, including meteorite ground searches.

  4. Neurochemical aftermath of amateur boxing.

    Science.gov (United States)

    Zetterberg, Henrik; Hietala, M Albert; Jonsson, Michael; Andreasen, Niels; Styrud, Ewa; Karlsson, Ingvar; Edman, Ake; Popa, Cornel; Rasulzada, Abdullah; Wahlund, Lars-Olof; Mehta, Pankaj D; Rosengren, Lars; Blennow, Kaj; Wallin, Anders

    2006-09-01

    Little solid information is available on the possible risks for neuronal injury in amateur boxing. To determine whether amateur boxing and severity of hits are associated with elevated levels of biochemical markers for neuronal injury in cerebrospinal fluid. Longitudinal study. Referral center specializing in evaluation of neurodegenerative disorders. Fourteen amateur boxers (11 men and 3 women) and 10 healthy male nonathletic control subjects. The boxers underwent lumbar puncture 7 to 10 days and 3 months after a bout. The control subjects underwent LP once. Neurofilament light protein, total tau, glial fibrillary acidic protein, phosphorylated tau, and beta-amyloid protein 1-40 (Abeta([1-40])) and 1-42 (Abeta([1-42])) concentrations in cerebrospinal fluid were measured. Increased levels after a bout compared with after 3 months of rest from boxing were found for 2 markers for neuronal and axonal injury, neurofilament light protein (mean +/- SD, 845 +/- 1140 ng/L vs 208 +/- 108 ng/L; P = .008) and total tau (mean +/- SD, 449 +/- 176 ng/L vs 306 +/- 78 ng/L; P = .006), and for the astroglial injury marker glial fibrillary acidic protein (mean +/- SD, 541 +/- 199 ng/L vs 405 +/- 138 ng/L; P = .003). The increase was significantly higher among boxers who had received many hits (>15) or high-impact hits to the head compared with boxers who reported few hits. In the boxers, concentrations of neurofilament light protein and glial fibrillary acidic protein, but not total tau, were significantly elevated after a bout compared with the nonathletic control subjects. With the exception of neurofilament light protein, there were no significant differences between boxers after 3 months of rest from boxing and the nonathletic control subjects. Amateur boxing is associated with acute neuronal and astroglial injury. If verified in longitudinal studies with extensive follow-up regarding the clinical outcome, analyses of cerebrospinal fluid may provide a scientific basis for

  5. The Role of Metaphor in the Interpretation of Basketball Jargons

    Institute of Scientific and Technical Information of China (English)

    冯伟

    2012-01-01

      Based upon Lakoff and Johnson’s theory of conventional metaphor, this paper takes some basketball jargons as a case for analysis from the cognitive perspective. The analysis verifies the indispensable role that metaphor as an important cogni⁃tive instrument plays in people’s interpreting and understanding the target domain by carrying over concepts from the source domain.

  6. Happy degrowth through more amateur economy

    DEFF Research Database (Denmark)

    Nørgaard, Jørgen

    2013-01-01

    to a brief historical overview of the role of work, including turning points in the 1930s in the United States, when work sharing was displaced by work creation through consumerism, and, in the post-war economy when GDP became the dominant economic indicator. The paper proposes the aim of a happy......This paper outlines a simple, aggregate, descriptive model of what is here termed a “whole economy”, covering all human involvement in the economy, from ultimate means or ecological sacrifices, to the ultimate ends of human satisfaction. The model embraces not only the formal “professional economy......” driven by money, but also the parallel non-paid, voluntary economy, here termed “amateur economy”, driven by peoples’ affective motivations. The input of work to the economy plays an essential role in the paper’s analysis of options for reducing ecological sacrifices. Hence, part of the paper is devoted...

  7. Basketball Surfaces and Coefficient of Restitution

    Directory of Open Access Journals (Sweden)

    Kristyn Peacock

    2015-01-01

    Full Text Available A basketball was released from varying drop heights to simulate the impact speeds of a typical soft, medium, and hard dribble. This was repeated across four different surfaces that students typically play on–exposed aggregate concrete, maple wood flooring, EPI Outdoor Sport flooring, and playground rubber mesh. From the measured drop and bounce heights, the coefficient of restitution(CORwas calculated. It was concluded that only playground rubber mesh had COR’s below the regulation range, with the other three surfaces having COR’s within regulation.

  8. “1952 amateurism event” With its reflections on the press and amateurism in Turkey

    OpenAIRE

    2011-01-01

    Sportsmanship, a profession in today's world, has its amateurism and professionalism lines intertwined. Sportsmen legally seen as amateurs in many sports fields are known to earn more than the professionals accepted to be in the high earning range. The study investigates the concept of amateurism in sports in the context of the decision taken for wrestlers and athlete whose amateur status was not approved by the Turkish National Olympics Committee since the above mentioned sportsmen had ...

  9. The relationship between physical fitness and shooting accuracy of professional basketball players

    Directory of Open Access Journals (Sweden)

    Haris Pojskić

    2014-12-01

    Full Text Available The aim of this study was to examine the relationships among physical fitness of professional Bosnian basketball players (n = 38 and shooting accuracy during one basketball season. A related, secondary aim was to examine relationships between basketball shooting assessments and competitive shooting accuracy during game play. Physical fitness components included: muscular endurance and aerobic endurance, lower and upper-body power, speed, agility, anaerobic capacity and anaerobic power. The specific basketball shooting accuracy was assessed by stationary and dynamic shooting assessments. Competitive shooting accuracy was represented by data collected during one basketball season for each player (free throw, field goal, and three-point %. Results of the regression analyses showed that there were significant positive relationships among shooting assessments and competitive shooting accuracy during game play. The relationship was stronger when the dynamic shooting tests were applied compared to the stationary tests. However, few or weak relationships existed among physical fitness components and competitive shooting accuracy. Only the power tests showed to be good predictors for shooting over longer distances. The findings support the inclusion of the dynamic basketball shooting accuracy tests in regular basketball assessment procedures as a valuable testing instrument.

  10. Visual tracking speed is related to basketball-specific measures of performance in NBA players.

    Science.gov (United States)

    Mangine, Gerald T; Hoffman, Jay R; Wells, Adam J; Gonzalez, Adam M; Rogowski, Joseph P; Townsend, Jeremy R; Jajtner, Adam R; Beyer, Kyle S; Bohner, Jonathan D; Pruna, Gabriel J; Fragala, Maren S; Stout, Jeffrey R

    2014-09-01

    The purpose of this study was to determine the relationship between visual tracking speed (VTS) and reaction time (RT) on basketball-specific measures of performance. Twelve professional basketball players were tested before the 2012-13 season. Visual tracking speed was obtained from 1 core session (20 trials) of the multiple object tracking test, whereas RT was measured by fixed- and variable-region choice reaction tests, using a light-based testing device. Performance in VTS and RT was compared with basketball-specific measures of performance (assists [AST]; turnovers [TO]; assist-to-turnover ratio [AST/TO]; steals [STL]) during the regular basketball season. All performance measures were reported per 100 minutes played. Performance differences between backcourt (guards; n = 5) and frontcourt (forward/centers; n = 7) positions were also examined. Relationships were most likely present between VTS and AST (r = 0.78; p basketball-specific performance measures. Backcourt players were most likely to outperform frontcourt players in AST and very likely to do so for VTS, TO, and AST/TO. In conclusion, VTS seems to be related to a basketball player's ability to see and respond to various stimuli on the basketball court that results in more positive plays as reflected by greater number of AST and STL and lower turnovers.

  11. Ιnjuries in greek amateur soccer players

    Directory of Open Access Journals (Sweden)

    GEORGIOS TSIGANOS

    2007-01-01

    Full Text Available The purpose of this study was to record retrospectivelythe epidemiology of injuries in amateur Greek soccer players. Three hundred and one (301 amateur soccer playersvoluntarily participated in the study. Participants answered aspecially-designed questionnaire that included questionsabout demographics, playing surface, division, position,hours of training plus participation, the use of stretching orprophylactic tape, the injury mechanism, the location andtype of injury. During the five years these soccer playerssustained a total of 1.745 injuries, that diagnosed by the orthopedist of the team. Most of injuries were strains (33%,overuse (27% and sprains (25%. The location of injurieswas the thigh (38 %, ankle (27% and knee (13%. Therewas a significant difference in the total number of injuriesamong soccer players with or without scoliosis (t=3.152,p. 0.05 and players that played on sand/dirt (gravel, whosustained more injuries than the players who played on artificial grass or on grass (t=3.413, p. 0.05. No differenceswere found in the other measurement parameters. The results of our study shows that spine deformities and groundsurfaces are the factors that causes more injuries in amateurGreek soccer players.

  12. Two amateur astronomers at Berkeley

    CERN Document Server

    Sparavigna, Amelia Carolina

    2012-01-01

    The book on Mechanics of the Physics at Berkeley, by C. Kittel, W.D. Knight and M.A. Ruderman, is proposing at the end of its first chapter some problems of simple astronomy within the solar system. The discussion begins with two amateur astronomers who set for themselves the goal of determining the diameter and mass of the Sun. Here we discuss the problems proposed by the book and some other matters on ancient and modern astronomical studies of the solar system.

  13. [Sherlock Holmes as amateur physician].

    Science.gov (United States)

    Madsen, S

    1998-03-30

    The medical literature contains numerous articles dealing with Sherlock Holmes and his companion Dr. Watson. Some of the articles are concerned with the medical and scientific aspects of his cases. Other articles adopt a more philosophical view: They compare the methods of the master detective with those of the physician--the ideal clinician should be as astute in his profession as the detective must be in his. It this article the author briefly reviews the abilities of Sherlock Holmes as an amateur physician. Often Holmes was brilliant, but sometimes he made serious mistakes. In one of his cases (The Adventure of the Lion's Mane) he misinterpreted common medical signs.

  14. Amateur Online Interculturalism in Foreign Language Education

    Science.gov (United States)

    Alm, Antonie

    2016-01-01

    This paper discusses the animated web series "Lifeswap" as an example for "amateur online interculturism" and investigates its potential for intercultural language education. Drawing on Dervin's (2015) discussion on the "amateur interculturist", I suggest that online publications of personal encounters of…

  15. Dr Valter Rukavina - amateur painter.

    Science.gov (United States)

    Glavocic, Daina

    2008-01-01

    In this essay Dr Valter Rukavina (Rijeka 1896-1972), excellent specialist in infectious diseases and professor of the Rijeka University School of Medicine, is presented as successful amateur painter. He had been refining his talent through relentless practice since the school days, complementing it with skills and advice from established painters he associated with. He favoured figurative, realistic and somewhat romantic expression for his themes such as coastal landscapes, marinas, Quarnero sceneries, still life in tempera or oil, and drawings in ink or sepia. Despite partial colour blindness, he successfully used colour. He featured in a number of group exhibitions such as that of amateur painters of Rijeka in 1950, of painters physicians of Yugoslavia (Zagreb, 1956), in the Second International Exhibition of Contemporary Art (Florence, 1964), exhibition of the Rijeka branch of the Croatian Association of Visual Artists (Belgrade, 1966), and the 1969 exhibition in Opatija. His native city hosted two one-man exhibitions, the first retrospective in 1971, while he was still alive, and the second posthumous in 2007, with a good selection of his life's work.

  16. Risk factors for patellar tendinopathy in basketball and volleyball players: a cross-sectional study.

    Science.gov (United States)

    van der Worp, H; van Ark, M; Zwerver, J; van den Akker-Scheek, I

    2012-12-01

    Patellar tendinopathy (PT) has a multifactorial etiology, and many possible risk factors have been described in the literature. The findings are conflicting, though, and most research has been conducted on elite athletes. The aim of the current study is to determine the risk factors for PT in a large representative sample of basketball and volleyball players. Separate risk factors for men and women, basketball and volleyball players, and athletes with unilateral and bilateral PT were identified. All basketball and volleyball players between ages 18 and 35 from the Dutch Basketball Association and the Dutch Volleyball Association were invited to complete an online questionnaire on knee complaints and risk factors for PT. The logistic regression analyses included 2224 subjects. The risk factors for PT were age, playing at the national level, being male and playing volleyball (compared with playing basketball). The risk factors for men and women were comparable. Among volleyball players, outside hitters and middle blockers/hitters had an increased risk compared with setters. For basketball players, no risk factors could be identified. No differences in the risk factors were found between athletes with unilateral and bilateral PT. These findings should be taken into account for prevention and rehabilitation purposes. © 2011 John Wiley & Sons A/S.

  17. Basketballs as spherical acoustic cavities

    Science.gov (United States)

    Russell, Daniel A.

    2010-06-01

    The sound field resulting from striking a basketball is found to be rich in frequency content, with over 50 partials in the frequency range of 0-12 kHz. The frequencies are found to closely match theoretical expectations for standing wave patterns inside a spherical cavity. Because of the degenerate nature of the mode shapes, explicit identification of the modes is not possible without internal investigation with a microphone probe. A basketball proves to be an interesting application of a boundary value problem involving spherical coordinates.

  18. Quantitative evaluation of trunk muscle strength in wheelchair basketball players

    Directory of Open Access Journals (Sweden)

    Sileno da Silva Santos

    2016-06-01

    Full Text Available Abstract Trunk muscle strength affects trunk controlling playing an important role in performance and to define the classes of wheelchair basketball players. Trunk control capacity differs among players and quantitative assessments of trunk muscle strength have not been investigated. The aim of this study was to identify and correlate quantitative measures of trunk muscle strength with the wheelchair basketball players' classification. Forty-two male wheelchair basketball players with spinal cord injury, amputation, post-poliomyelitis sequelae, and cerebral palsy had their trunk extension and flexion strength evaluated with isokinetic dynamometer. The classes 1.0, 2.0, 3.0, and 4.0 were considered for statistical analysis. Comparison of trunk muscle strength differed significantly between classes: 1.0 and 3.0; 1.0 and 4.0; 2.0 and 3.0; and 2.0 and 4.0. High correlation was found between the trunk muscle strength and players' classes. The findings of the present study showed a strong correlation of trunk muscle strength and wheelchair basketball classes being able to distinguish players in their classes. However, this quantitative method of evaluation of the trunk muscle strength cannot be solely used to make a decision on the full trunk control.

  19. Comparing the Age Related Mood Profile of Veteran Basketball Players

    Directory of Open Access Journals (Sweden)

    Robabeh Rostami

    2016-07-01

    Full Text Available Background: Basketball, as an exciting team sport, is very popular among athletes with disabilities. Among psychological skills, mood states as an important variable have been of special interest to researchers. Objectives: The purpose of the present study was to investigate and compare profile of mood states (BRUMS of disabled former soldiers who play basketball in different age groups. Methodology: After getting permit to conduct the research, 28 disabled basketball players completed the demographic survey and the Brunel Mood Scale (BRUMS questionnaire. BRUMS consisted of 24 items in subscales of stress, anger, depression, fatigue, confusion and vigor. The one-way analysis of variance test was used for the data analysis. The significance level was set at P≤0.05. SPSS Statistics 22.0 was used for the analysis of data. Results: The results showed that mood states become less negative with age. However, scores showed a rising trend in the 35-39 age groups (mood of anger with P=0/02 fatigue with P=0/03 and confusion with P=0/04. Conclusion: It seems that examining the psychological variables in relation to age can help develop more effective strategies in physical and mental training programs for disabled players. Keywords: Mood States, Basketball Players, veteran with disabilities, Age

  20. Kinanthropometric characteristics in teenager basketball players

    Directory of Open Access Journals (Sweden)

    Maria Abella del Campo

    2015-12-01

    Full Text Available Introduction: Basketball is a sport with a high heterogeneity anthropometric as playing position. Point guard is usually the lowest player but also the fastest. Guard is similar to point guard, faster and more agile than the others. Small forward has an intermediate height between the inside and outside players and it combines height with velocity. And center (pivot has a physical role, it has the highest and more muscle mass. The aim of this study is to describe the kinanthropometric profile of male cadet “Valencia Basket Club”. Material and Methods: A total of 20 male cadet basketball players were evaluated (15.35±0.59 years old. An anthropometrist level 1 took anthropometric measures according to the methodology of the International Society for the Advancement of Kinanthropometry (ISAK. Body composition was calculated according to the kinanthropometry consensus of the Kinanthropometry Spanish Group (GREC, somatotype with Heath-Carter’s method and adiposemuscular and cardiovascular risk index. Results: Differences in values of weight, height, skinfold and body composition from variables of sample and position were observed. Lower values were from point guard position and higher values were from center position. An increasing trend of these parameters was established in the following order: point guard, guard, small forward and center. Conclusions: The Valencia Basket Club cadet player overall somatotype is balance ectomorph. To know kinanthropometric profile may be beneficial to develop specific training and nutrition plans as well as to see evolution and characteristics for optimal performance

  1. Perfil antropométrico de las jugadoras de baloncesto españolas. Análisis en función del nivel competitivo y de la posición específica de juego. (Anthropometric profile of Spanish female basketball players. Analysis by level and by playing position.

    Directory of Open Access Journals (Sweden)

    Irene Salgado Sánchez

    2009-04-01

    Full Text Available Resumen El objetivo del estudio es determinar el perfil antropométrico de las jugadoras de baloncesto en España en función del nivel competitivo y del puesto específico de juego. La muestra se compone de 64 jugadoras de baloncesto pertenecientes a equipos federados de la Liga Femenina de Baloncesto (n=20, Liga Femenina 2 de Baloncesto (n=22 y Primera Nacional (n=22.En total se registraron 16 medidas antropométricas (masa corporal, talla, siete pliegues, tres diámetros y cuatro perímetros para posteriormente determinar la composición corporal y el somatotipo. En términos generales se observan diferencias tanto en composición corporal como en somatotipo entre diferentes niveles competitivos, diferencias que pueden considerarse favorables a las jugadoras de mayor nivel en casi todas las variables examinadas. Podemos hablar de la existencia de un perfil cineantropométrico específico en función de la posición de juego. Las pívots son las jugadoras más altas y pesadas, y con mayor porcentaje de grasa, seguidas por las aleros y por último las bases. AbstractThe purpose of this study was to identify the anthropometric profile of Spanish female basketball players by level and by playing position. The sample was formed by 64 female baskeball players who practiced basketball in collegiated teams of Liga Femenina de Baloncesto (20, Liga Femenina 2 de Baloncesto (22 and Primera Nacional (22.Sixteen body dimensions were measured (body mass, height, seven skinfolds, three diameters and four girths in order to determine body composition and somatotype. The results of the study demonstrated that body composition and somatotype were different between levels of play. Both data were favourable to the highest level in almost all the examined variables. When we analysed body composition and somatotype by playing position we realised that an specific anthropometric profile existed in all playing positions. Center were taller and heavier than forwards

  2. Using commercial amateur astronomical spectrographs

    CERN Document Server

    Hopkins, Jeffrey L

    2014-01-01

    Amateur astronomers interested in learning more about astronomical spectroscopy now have the guide they need. It provides detailed information about how to get started inexpensively with low-resolution spectroscopy, and then how to move on to more advanced  high-resolution spectroscopy. Uniquely, the instructions concentrate very much on the practical aspects of using commercially-available spectroscopes, rather than simply explaining how spectroscopes work. The book includes a clear explanation of the laboratory theory behind astronomical spectrographs, and goes on to extensively cover the practical application of astronomical spectroscopy in detail. Four popular and reasonably-priced commercially available diffraction grating spectrographs are used as examples. The first is a low-resolution transmission diffraction grating, the Star Analyser spectrograph. The second is an inexpensive fiber optic coupled bench spectrograph that can be used to learn more about spectroscopy. The third is a newcomer, the ALPY ...

  3. Boosting productivity: a framework for professional/amateur collaborative teamwork

    Science.gov (United States)

    Al-Shedhani, Saleh S.

    2002-11-01

    As technology advances, remote operation of telescopes has paved the way for joint observational projects between Astronomy clubs. Equipped with a small telescope, a standard CCD, and a networked computer, the observatory can be set up to carry out several photometric studies. However, most club members lack the basic training and background required for such tasks. A collaborative network between professionals and amateurs is proposed to utilize professional know-how and amateurs' readiness for continuous observations. Working as a team, various long-term observational projects can be carried out using small telescopes. Professionals can play an important role in raising the standards of astronomy clubs via specialized training programs for members on how to use the available technology to search/observe certain events (e.g. supernovae, comets, etc.). Professionals in return can accumulate a research-relevant database and can set up an early notification scheme based on comparative analyses of the recently-added images in an online archive. Here we present a framework for the above collaborative teamwork that uses web-based communication tools to establish remote/robotic operation of the telescope, and an online archive and discussion forum, to maximize the interactions between professionals and amateurs and to boost the productivity of small telescope observatories.

  4. Vectors on the Basketball Court

    Science.gov (United States)

    Bergman, Daniel

    2010-01-01

    An Idea Bank published in the April/May 2009 issue of "The Science Teacher" describes an experiential physics lesson on vectors and vector addition (Brown 2009). Like its football predecessor, the basketball-based investigation presented in this Idea Bank addresses National Science Education Standards Content B, Physical Science, 9-12 (NRC 1996)…

  5. Globalisation and Women's Professional Basketball

    Directory of Open Access Journals (Sweden)

    Serkan Berber

    2011-12-01

    Full Text Available Women’s basketball is a global game with professional leagues in Europe, Africa, Australia, Asia, and the Americas. The Women’s National Basketball Association (WNBA in the US is the premier league for the sport. During the off-season, over 100 players from WNBA clubs compete professionally abroad to supplement their incomes. Traveling teams and their visiting friends, relatives, and fans place demands on tourism businesses. This study examines the global migration in women’s professional basketball, including players living and traveling abroad and their tourism impacts. In-depth interviews with the foreign players participating in the Turkish Women’s Basketball League 2011 All-Star Game in Eskişehir were conducted. The foreign all-stars spent on average $US 1200 per month in Turkey for living expenses during the season; most had been visited by family and/or friends since becoming a player in the Turkish league. The implications of professional sport team travel on league sponsorship and marketing strategies, tourism businesses, and host cities are discussed.

  6. An Optimal Basketball Free Throw

    Science.gov (United States)

    Seppala-Holtzman, David

    2012-01-01

    A basketball player attempting a free throw has two parameters under his or her control: the angle of elevation and the force with which the ball is thrown. We compute upper and lower bounds for the initial velocity for suitable values of the angle of elevation, generating a subset of the configuration space of all successful free throws. A…

  7. Portable basketball rim testing device

    Science.gov (United States)

    Abbott, W. Bruce; Davis, Karl C.

    1993-01-01

    A portable basketball rim rebound testing device 10 is illustrated in two preferred embodiments for testing the rebound or energy absorption characteristics of a basketball rim 12 and its accompanying support to determine likely rebound or energy absorption charcteristics of the system. The apparatus 10 includes a depending frame 28 having a C-clamp 36 for releasably rigidly connecting the frame to the basketball rim 12. A glide weight 60 is mounted on a guide rod 52 permitting the weight 60 to be dropped against a calibrated spring 56 held on an abutment surface on the rod to generate for deflecting the basketball rim and then rebounding the weight upwardly. A photosensor 66 is mounted on the depending frame 28 to sense passage of reflective surfaces 75 on the weight to thereby obtain sufficient data to enable a processing means 26 to calculate the rebound velocity and relate it to an energy absorption percentage rate of the rim system 12. A readout is provided to display the energy absorption percentage.

  8. Leslie Peltier: The World's Greatest Amateur Astronomer

    Science.gov (United States)

    Simonsen, M.

    2014-05-01

    This paper is a brief account of the life of amateur astronomer Leslie C. Peltier, with reflections on how his astronomical accomplishments influenced the author's own involvement in variable star observing.

  9. Amateur Librarian: A Course in Critical Pedagogy

    Directory of Open Access Journals (Sweden)

    Tomislav Medak

    2017-10-01

    Full Text Available A proposal for a curriculum in amateur librarianship, developed through the activities and exigencies of the Public Library project. Drawing from a historic genealogy of public library as the institution of access to knowledge, the proletarian tradition of really useful knowledge and the amateur agency driven by technological development, the proposed curriculum covers a range of segments from immediately applicable workflows for scanning, sharing and using e-books, over politics and tactics around custodianship of online libraries, to applied media theory implicit in the practices of amateur librarianship. It situates the massive practice of amateur librarianship in the context of historic processes of disciplinary specialization and their technological amateurisation and the massive practice of commoning knowledge in in the context of uneven and combined development of the global knowledge economy. The proposal is made with further development, complexification and testing in mind during the future activities of the Public Library and affiliated organizations.

  10. Automatic Statistics Extraction for Amateur Soccer Videos

    NARCIS (Netherlands)

    van Gemert, J.C.; Schavemaker, J.G.M.; Bonenkamp, K.; Spink, A.J.; Loijens, L.W.S.; Woloszynowska-Fraser, M.; Noldus, L.P.J.J.

    2014-01-01

    Amateur soccer statistics have interesting applications such as providing insights to improve team performance, individual coaching, monitoring team progress and personal or team entertainment. Professional soccer statistics are extracted with labor intensive expensive manual effort which is not rea

  11. Automatic Statistics Extraction for Amateur Soccer Videos

    NARCIS (Netherlands)

    Gemert, J.C. van; Schavemaker, J.G.M.; Bonenkamp, C.W.B.

    2014-01-01

    Amateur soccer statistics have interesting applications such as providing insights to improve team performance, individual coaching, monitoring team progress and personal or team entertainment. Professional soccer statistics are extracted with labor intensive expensive manual effort which is not rea

  12. Research concerning the Ball Screen in Basketball

    Directory of Open Access Journals (Sweden)

    Dan Ionescu

    2017-03-01

    Full Text Available The dynamics of basketball, due to the relatively small court but also to regulations concerning the time of attack, has required finding, by the specialists in this field, new ways of collaboration and specific actions between a certain team’s players. Thus has appeared the 2 on 2 play, with its improved version called pick and roll, which has ”exploded” over the last years, becoming the most important element in many coaches’ strategy. As a description, pick and roll represents the tactic move to which participate the player in possession of the ball and a tall player, which screen him out, temporarily blocking the way of its defender. The purpose of this research is analyzing, in a national champion team, the frequency, the versions and the efficiency of these tactic moves.

  13. Analysis of teamwork in officiating in basketball

    OpenAIRE

    Smid, Pavel

    2015-01-01

    The aim of this paper is to characterise the role, activity and participation of the referees in games with a focus to basketball games. The author generally discusses these issues analysing changes in referees teamwork during the last three years, He presents referees´ individual positions on the basketball court (lead, centre, trail), places of their competences, duties and responsibilities. The method of study was direct observation of 45 basketball games during seasons 2012-2014 in mens b...

  14. South African Radio League Introduction to Amateur Radio: A study guide for the Radio Amateur Examination

    CSIR Research Space (South Africa)

    Burger, Chris

    2016-01-01

    Full Text Available recognition of amateur radio licences. South African radio amateurs can exercise their privileges in more than 80 countries and territories with minimal paperwork. In exchange, we have an obligation to ensure that all licence holders possess a minimum level...

  15. Bifurcation Adds Flavor to Basketball

    CERN Document Server

    Min, Byeong June

    2016-01-01

    We report an emergence of bifurcation in basketball, a single-particle system governed by Newtonian mechanics. When shooting the basketball, the obvious control parameters are the launch speed and the launch angle. We propose to use the three-dimensional velocity phase-space volume associated with the given launch parameters to quantify the difficulty of the shooting. The optimal launch angle that maximizes the associated phase-space volume undergoes a bifurcation as the launch speed is increased, if the shooter is farther than a critical distance away from the hoop. Thus, the bifurcation makes it very important to control the launch speed accurately. If the air resistance is removed, the bifurcation disappears and the phase-space volume distribution becomes dispersionless and shrinks in magnitude.

  16. Vitamin D Deficiency Among Professional Basketball Players.

    Science.gov (United States)

    Fishman, Matthew P; Lombardo, Stephen J; Kharrazi, F Daniel

    2016-07-01

    Vitamin D plays an important role in several systems of the human body. Various studies have linked vitamin D deficiency to stress and insufficiency fractures, muscle recovery and function, and athletic performance. The prevalence of vitamin D deficiency in the elite athletic population has not been extensively studied, and very few reports exist among professional athletes. There is a high prevalence of vitamin D deficiency or insufficiency among players attending the National Basketball Association (NBA) Combine. Cross-sectional study; Level of evidence, 3. This is a retrospective review of data previously collected as part of the routine medical evaluation of players in the NBA Combines from 2009 through 2013. Player parameters evaluated were height, weight, body mass index (BMI), and vitamin D level. Statistical analysis using t tests and analysis of variance was used to detect any correlation between the player parameters and vitamin D level. Vitamin D levels were categorized as deficient (32 ng/mL). After institutional review board approval was submitted to the NBA, the NBA released deidentified data on 279 players who participated in the combines from 2009 through 2013. There were 90 players (32.3%) who were deficient, 131 players (47.0%) who were insufficient, and 58 players (20.8%) who were sufficient. A total of 221 players (79.3%) were either vitamin D deficient or insufficient. Among all players included, the average vitamin D level was 25.6 ± 10.2 ng/mL. Among the players who were deficient, insufficient, and sufficient, the average vitamin D levels were 16.1 ± 2.1 ng/mL, 25.0 ± 3.4 ng/mL, and 41.6 ± 8.6 ng/mL, respectively. Player height and weight were significantly increased in vitamin D-sufficient players compared with players who were not sufficient (P = .0008 and .009, respectively). Player age and BMI did not significantly differ depending on vitamin D status (P = .15 and .77, respectively). There is a high prevalence of vitamin D deficiency

  17. Assessment succession of student's goes in for basketball.

    Directory of Open Access Journals (Sweden)

    Temchenko V.A.

    2012-03-01

    Full Text Available The questions of working out of the criteria for assessment the results of students by subject "Physical education" (basketball section are considered. The article focuses on variants of assessing the results physical training employment of the students under the credit and module system. It is set that at the choice of type of sport (or directions motive activity about 40% students of basic separation are given by a preference the playing types of sport. From this number 12% choose basket-ball. Norms in special physical training are given. It's emphasized that there is no common system of assessment the results of students; the model of sectional form of physical training is worked out not enough.

  18. Hand preference patterns in expert basketball players: interrelations between basketball-specific and everyday life behavior.

    Science.gov (United States)

    Stöckel, Tino; Vater, Christian

    2014-12-01

    In the present study we examined the interrelation of everyday life handedness and hand preference in basketball, as an area of expertise that requires individuals being proficient with both their non-dominant and dominant hand. A secondary aim was to elucidate the link between basketball-specific practice, hand preference in basketball and everyday life handedness. Therefore, 176 expert basketball players self-reported their hand preference for activities of daily living and for basketball-specific behavior as well as details about their basketball-specific history via questionnaire. We found that compared to the general population the one-hand bias was significantly reduced for both everyday life and basketball-specific hand preference (i.e., a higher prevalence of mixed-handed individuals), and that both concepts were significantly related. Moreover, only preference scores for lay-up and dribbling skills were significantly related to measures of basketball-specific practice. Consequently, training-induced modulations of lateral preference seem to be very specific to only a few basketball-specific skills, and do not generalize to other skills within the domain of basketball nor do they extend into everyday life handedness. The results are discussed in terms of their relevance regarding theories of handedness and their practical implications for the sport of basketball.

  19. The Massive Thermal Basketball Diagram

    CERN Document Server

    Andersen, J O; Strickland, Michael T; Andersen, Jens O.; Braaten, Eric; Strickland, Michael

    2000-01-01

    The "basketball diagram" is a three-loop vacuum diagram for a scalar fieldtheory that cannot be expressed in terms of one-loop diagrams. We calculatethis diagram for a massive scalar field at nonzero temperature, reducing it toexpressions involving three-dimensional integrals that can be easily evaluatednumerically. We use this result to calculate the free energy for a massivescalar field with a phi^4 interaction to three-loop order.

  20. Gender differences in learning basketball

    Directory of Open Access Journals (Sweden)

    Luiz Antonio Pereira da Silva

    2008-06-01

    Full Text Available Research carried out by Davisse (1986 concludes that male students presents a better performance in sports learning than females, principally at the beginning of the 5 th year in high school when children begin to have Physical Education with specialized teachers. However, Baur (1988 says that females present a good performance when they work together with males. The porpose of this study is to determine whether gender differences exist in 9-and 10-year-old children of both sexes when learning basketball. An experimental work was carried out over 21 basketball classes distributed in two mixed groups of 35 male and 26 female children AAHPERD test for basketball was applied at the beginning and at end the experimental work. The statistic “t” test showed a better performance of the females. The results at the end of the work showed this same performence in the application of the rules during the games. This was contrary to perspectives, since males presented important differences (p < 0.01 in the pre-test, in the post-test and in the application of the rules out of the games. The final conclusion is that during the games there are other factors which interfere in the learning process, besides good performance in the basic rules, the latter caused a better performance of females than of males in learning situation.

  1. Training Visual Control in Wheelchair Basketball Shooting

    Science.gov (United States)

    Oudejans, Raoul R. D.; Heubers, Sjoerd; Ruitenbeek, Jean-Rene J. A. C.; Janssen, Thomas W. J.

    2012-01-01

    We examined the effects of visual control training on expert wheelchair basketball shooting, a skill more difficult than in regular basketball, as players shoot from a seated position to the same rim height. The training consisted of shooting with a visual constraint that forced participants to use target information as late as possible.…

  2. From Casual Stargazer to Amateur Astronomer

    Science.gov (United States)

    Eagle, Dave

    The word amateur stems from the French word Amour, meaning "Lover Of". And there is a whole army of amateur astronomers around the world who just love doing astronomy. They don't get paid for the privilege of experiencing the sky in all its glory, but by making detailed observations they do make a very important contribution towards the Science. These observations are especially useful when organized as a collective effort. Citizen science has really taken off in the last few years and the GAIA project will soon be producing so much data, that the professionals just will not have enough manpower to tackle all the data. They will rely on amateurs sitting on their computers at home. But it is under a dark sky that astronomy really comes alive. The fact that you have picked up this book, must mean that you are interested in taking the hobby a step forward.

  3. Sustainable degrowth through more amateur economy

    DEFF Research Database (Denmark)

    Nørgaard, Jørgen

    2010-01-01

    By a simple descriptive model is illustrated how the role of labor input tothe economy will have to revised in a degrowth economy. A destinction is made btween the Professional (GDP) economy, driven by money, and the Amateur economy (voluntary) driven by love. Shifting some economic activities...... (back) from the prof. economy to the amateur economy will be less productive than the prof. economy in terms of output per man hour, but often more 'productive' in generating satisfaction and happiness in the process. Such a shift can create more ultimate benefit (happiness), but less product output...

  4. Performance analysis of elite men's and women's wheelchair basketball teams.

    Science.gov (United States)

    Gómez, Miguel Ángel; Pérez, Javier; Molik, Bartosz; Szyman, Robert J; Sampaio, Jaime

    2014-01-01

    The purpose of the present study was to identify which game-related statistics discriminate winning and losing teams in men's and women's elite wheelchair basketball. The sample comprised all the games played during the Beijing Paralympics 2008 and the World Wheelchair Basketball Championship 2010. The game-related statistics from the official box scores were gathered and data were analysed in 2 groups: balanced games (final score differences ≤ 12 points) and unbalanced games (final score differences >13 points). Discriminant analysis allowed identifying the successful 2-point field-goals and free-throws, the unsuccessful 3-point field-goals and free-throws, the assists and fouls received as discriminant statistics between winning and losing teams in men's balanced games. In women's games, the teams were discriminated only by the successful 2-point field-goals. Linear regression analysis showed that the quality of opposition had great effects in final point differential. The field-goals percentage and free-throws rate were the most important factors in men's games, and field-goals percentage and offensive rebounding percentage in women's games. The identified trends allow improving game understanding and helping wheelchair basketball coaches to plan accurate practice sessions and, ultimately, deciding better in competition.

  5. 47 CFR 97.407 - Radio amateur civil emergency service.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 5 2010-10-01 2010-10-01 false Radio amateur civil emergency service. 97.407... SERVICES AMATEUR RADIO SERVICE Providing Emergency Communications § 97.407 Radio amateur civil emergency service. (a) No station may transmit in RACES unless it is an FCC-licensed primary, club, or...

  6. STUDY ON THE CONTENT OF PHYSICAL TRAINING IN JUNIOR I BASKETBALL PLAYERS

    Directory of Open Access Journals (Sweden)

    Savu Cristian Florian

    2015-10-01

    Full Text Available STUDY ON THE CONTENT OF PHYSICAL TRAINING IN JUNIOR I BASKETBALL PLAYERS24 october 2015 back Current archive Domain:Sport de performanta Tags:sport training physical training physiological indicators Savu Cristian Florian Abstract Sports training must benefit from scientific progress of fundamental research, which he conducted on it considerably influence through concrete answers in getting sports performance. Sports training must be subjected to rational application of principles and objectives to ensure a successful and analysing progress in training. Research objectives: To assess the level of general and specific physical training of junior basketball players I in dependent on the objectives of the team and the game. Determine the program for general and specific physical training and operational resources necessary in the framework of the annual training and incorporation of periods of junior basketball players I. Experimental verification of the rationale and effectiveness of sports training methodology based on global and differentiated treatment of General and specific physical training of junior basketball players I. Studies and research will demonstrate that the level of physical preparation has baschetbalistilor is characterized by a rather large difference in age, the dependence of the athletes and team performance goals to which they belong. Contributing research: Investigation will show that the physical training of basketball is characterized by a pretty big difference, depending on the age of the athletes playing position and team performance objectives they belong. Today, basketball is trying to universalise game stations, where each athlete can perform tasks, skills and abilities of every post game in different situations. Our research is based on the scientific-methodical argument preparation and differentiated global players primarily in terms of physical preparation. Hypothesis paper: General and specific physical

  7. 75 FR 27272 - Amateur Service Rules

    Science.gov (United States)

    2010-05-14

    ... NPRM to amend the amateur service's SS rules to (1) eliminate the automatic power control requirement... to ``small entities.'' Rather, it applies exclusively to individuals who are the control operators of... transmit with a transmitter output exceeding 10 W PEP when the station is transmitting a SS emission type...

  8. Competencies in Amateur/Youth Coaching.

    Science.gov (United States)

    Stier, William F., Jr.

    Youth sports can be a positive experience for children if adults involved are aware of their impact on the child's development. An analysis is given of the problems and challenges that are evident in the way sports for young people are conducted. Particular emphasis is placed upon the role of the amateur coaches of team sports for children.…

  9. Chronic Traumatic Brain Injury in Amateur Boxers

    Directory of Open Access Journals (Sweden)

    M. Rahmati

    2008-04-01

    Full Text Available Introduction & objective: Despite of young and adolescence intent to the boxing sport, because of dominant aggression and direct blows contact to head, face and central nervous system, it is continuously criticize by different groups. The groups of sporting and physician conventions are distinguished boxing with physical and neuropsychological disorders and some groups believe that side effects of this sport are not more than other sports. For this base the aim of this study was to determine the chronic traumatic brain injury in a group amateur boxers.Materials & Methods: In a case-control study, three groups of sport men were considered, each group contained 20 randomly selected cases. The first group were amateur boxers with 4 years minimal activity(directly has been presented to the head blows, second group were amateur soccer players with 4 years minimal activity(has been presented to the not very severe head blows, third group were non athlete subjects .The groups were matched in weight, height, age and education .To understand brain disorder interview by medicine method has been used, then Wiskancin, Bonardele, Bender geshtalt, Kim karad visual memory, Benton and wechler memory (Alef type tests has been performed and EEG has got in the same hour and condition.Results: The homogeneity of between group variances was gained by the statistical method. Also between structural–visual abilities neuropsychological aspect in groups, significant difference has been gained (p= 0.000. In Kim karad visual memory test at the mild and long term visual memory deficit, significant differences between three groups was observed (P= 0.000, P=0.009 that least score has been belonged to the boxers. Also in boxers 6 abnormal EEGs is observed.Conclusion: It can be said that of four years amateur boxing can affect on boxers visual and memory perception and their spatial orientation. Additionally our study have showed that amateur boxing has a significant

  10. From the Myth of Level Playing Fields to the Reality of a Finite Planet; Comment on “A Global Social Support System: What the International Community Could Learn From the United States’ National Basketball Association’s Scheme for Redistribution of New Talent”

    Directory of Open Access Journals (Sweden)

    Ronald Labonté

    2016-02-01

    Full Text Available Despite the mythology that the global economy with its trade rules creates a ‘level playing field,’ international trade has never involved ‘level players.’ The inequalities in outcomes generated by the more powerful winning more frequently has led to innovative ideas for ex post redistribution to make the matches between the players both fairer, and in the analogy to basketball used by the authors, more interesting and even more competitive. The proposal for a Global Social Protection Fund, financed by a small tax on the winners to enhance social protection spending for the losers, presumably increasing the latter’s capabilities to compete more effectively in the global market game, is one such idea. It has much to commend it. Several problems, however, stand in its way, apart from those inherent within nations themselves and to which the authors give some attention. First, much global trade is now intra-firm rather than international, making calculations of which nations win or lose exceedingly difficult. Second, tax havens persist without the transparency and global regulatory oversights that would allow a better rendering of where winnings are stashed. Third, pre-distribution inequalities (those arising from market activities before government tax and transfer measures apply are still increasing as labour’s power to wrestle global capital into some ameliorative social contract diminishes. Fourth, there are finite limits to a planet on the cusp of multiple environmental crises. These problems do not diminish the necessity of alternative policy playbooks such as the proposed Fund, but point to the need to embrace the new Sustainable Development Goals (SDGs as a single set, such that economic growth for the bottom half of humanity includes deep structural reforms to both pre-distribution and redistribution, if the targets for environmental survival are to be met.

  11. The Effect of a Simulated Basketball Game on Players’ Sprint and Jump Performance, Temperature and Muscle Damage

    Directory of Open Access Journals (Sweden)

    Pliauga Vytautas

    2015-06-01

    Full Text Available Despite extensive data regarding the demands of playing basketball, the relative importance of factors that cause fatigue and muscle potentiation has been explored only tentatively and remains unclear. The aim of this experimental field study was to assess changes in leg muscle power and relate these changes to body temperature modifications and indices of exercise-induced muscle damage in response to a simulated basketball game. College-level male basketball players (n=10 were divided into two teams to play a simulated basketball game. Ten-meter sprint and vertical counter-movement jump tests, core body temperature and creatine-kinase activity were measured within 48 h after the game. The participants’ body temperatures increased after a warm-up (1.9%, p200%, p30%, p<0.05 after the game, indicating damage to the players’ muscles. The basketball players’ sprint and jump performance appear to be at least in part associated with body temperature changes, which might contribute to counteract fatigue during the larger part of a basketball game.

  12. Basketball shot types and shot success in different levels of competitive basketball.

    Directory of Open Access Journals (Sweden)

    Frane Erčulj

    Full Text Available The purpose of our research was to investigate the relative frequencies of different types of basketball shots (above head, hook shot, layup, dunk, tip-in, some details about their technical execution (one-legged, two-legged, drive, cut, …, and shot success in different levels of basketball competitions. We analysed video footage and categorized 5024 basketball shots from 40 basketball games and 5 different levels of competitive basketball (National Basketball Association (NBA, Euroleague, Slovenian 1st Division, and two Youth basketball competitions. Statistical analysis with hierarchical multinomial logistic regression models reveals that there are substantial differences between competitions. However, most differences decrease or disappear entirely after we adjust for differences in situations that arise in different competitions (shot location, player type, and attacks in transition. Differences after adjustment are mostly between the Senior and Youth competitions: more shots executed jumping or standing on one leg, more uncategorised shot types, and more dribbling or cutting to the basket in the Youth competitions, which can all be attributed to lesser technical and physical ability of developing basketball players. The two discernible differences within the Senior competitions are that, in the NBA, dunks are more frequent and hook shots are less frequent compared to European basketball, which can be attributed to better athleticism of NBA players. The effect situational variables have on shot types and shot success are found to be very similar for all competitions.

  13. Basketball shot types and shot success in different levels of competitive basketball.

    Science.gov (United States)

    Erčulj, Frane; Štrumbelj, Erik

    2015-01-01

    The purpose of our research was to investigate the relative frequencies of different types of basketball shots (above head, hook shot, layup, dunk, tip-in), some details about their technical execution (one-legged, two-legged, drive, cut, …), and shot success in different levels of basketball competitions. We analysed video footage and categorized 5024 basketball shots from 40 basketball games and 5 different levels of competitive basketball (National Basketball Association (NBA), Euroleague, Slovenian 1st Division, and two Youth basketball competitions). Statistical analysis with hierarchical multinomial logistic regression models reveals that there are substantial differences between competitions. However, most differences decrease or disappear entirely after we adjust for differences in situations that arise in different competitions (shot location, player type, and attacks in transition). Differences after adjustment are mostly between the Senior and Youth competitions: more shots executed jumping or standing on one leg, more uncategorised shot types, and more dribbling or cutting to the basket in the Youth competitions, which can all be attributed to lesser technical and physical ability of developing basketball players. The two discernible differences within the Senior competitions are that, in the NBA, dunks are more frequent and hook shots are less frequent compared to European basketball, which can be attributed to better athleticism of NBA players. The effect situational variables have on shot types and shot success are found to be very similar for all competitions.

  14. 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.

  15. Increase the level of preparedness of qualified basketball players in the preparatory period

    Directory of Open Access Journals (Sweden)

    Volodymyr Gradusov

    2017-08-01

    Full Text Available Purpose: to study the adaptation of basketball players of student teams to training loads during the preparatory period of the annual cycle of training on the parameters of motor qualities and functional readiness. Material & Methods: conducted a survey of 12 basketball players on the team (Sumy, the highest league of the Ukrainian Basketball Championship. The following research methods were used: theoretical analysis of literary sources, methods of mathematical statistics, anthropometry and pedagogical control. Result: dynamics of changes at the stage of preparation for the season is shown. It is established and observed that under the influence of training sessions in the examined basketball players, not only the optimization of the functional systems of their organism, but also the level of the functional state of the organism as a whole. Conclusion: assessment of the functional condition of the athlete's body should play an important role in the overall system of medical and biological control in connection with significant additional information on the state of their body and the possibility of timely correction of physical activity and the provision of preventive measures. It is determined that during the preparatory period the level of motor qualities and functional readiness of the basketball players increased.

  16. INVESTIGATION OF DECISION MAKING ANDPROBLEM SOLVING ABILITIES OF AMATEUR SPORTSMEN DURING THE COMPETITION

    Directory of Open Access Journals (Sweden)

    Yakup Akif

    2014-08-01

    Full Text Available In this study, it was aimed to investigate decision making and problem solving abilities of football players in super league during the competition. 101 sportsmen of 6 teams voluntarily participated in the study who finished the league as first two, middle two and last two and played football in super amateur league of 2012-2013 season in Mugla. "Melbourne Decision Making Scale I-II" developed by Mann et al. (1998 was used in order to investigate decision making ability of sportsmen during the competition and "Problem Solving Inventory" developed by Heppner and Petersen (1982 was used to determine their problem solving abilities. A negative correlation (r=.-261* was determined between problem solving abilities and avoidant levels of amateur league football players. Avoidant levels in individuals playing football in amateur leagues do not show parallelism with problem solving levels in competition or out of competition. As a result; it was found that amateur football players with high self-respect had high level of decision making and those who had inadequate self-respect and self-esteem values escaped from the events during the competition and had shy behavior.

  17. Is coaching experience associated with effective use of timeouts in basketball?

    Science.gov (United States)

    Saavedra, Serguei; Mukherjee, Satyam; Bagrow, James P.

    2012-09-01

    Experience is an important asset in almost any professional activity. In basketball, there is believed to be a positive association between coaching experience and effective use of team timeouts. Here, we analyze both the extent to which a team's change in scoring margin per possession after timeouts deviate from the team's average scoring margin per possession--what we called timeout factor, and the extent to which this performance measure is associated with coaching experience across all teams in the National Basketball Association over the 2009-2012 seasons. We find that timeout factor plays a minor role in the scoring dynamics of basketball. Surprisingly, we find that timeout factor is negatively associated with coaching experience. Our findings support empirical studies showing that, under certain conditions, mentors early in their careers can have a stronger positive impact on their teams than later in their careers.

  18. Official Basketball Rules for Girls and Women. July 1972 - July 1973. Reprint.

    Science.gov (United States)

    American Association for Health, Physical Education, and Recreation, Washington, DC. Div. for Girls and Women's Sports.

    The official American Association for Health, Physical Education, and Recreation (AAHPER) rules for girls and women's basketball, July 1972 - July 1973 are listed. Exact court measurements are given as are official scoring rules, timing procedures, duties of officials, definition of playing terms, violations and penalties, and officials' signals.…

  19. The Functional Classification and Field Test Performance in Wheelchair Basketball Players

    Directory of Open Access Journals (Sweden)

    Gil Susana María

    2015-06-01

    Full Text Available Wheelchair basketball players are classified in four classes based on the International Wheelchair Basketball Federation (IWBF system of competition. Thus, the aim of the study was to ascertain if the IWBF classification, the type of injury and the wheelchair experience were related to different performance field-based tests. Thirteen basketball players undertook anthropometric measurements and performance tests (hand dynamometry, 5 m and 20 m sprints, 5 m and 20 m sprints with a ball, a T-test, a Pick-up test, a modified 10 m Yo-Yo intermittent recovery test, a maximal pass and a medicine ball throw. The IWBF class was correlated (p<0.05 to the hand dynamometry (r= 0.84, the maximal pass (r=0.67 and the medicine ball throw (r= 0.67. Whereas the years of dependence on the wheelchair were correlated to the velocity (p<0.01: 5 m (r= −0.80 and 20 m (r= −0.77 and agility tests (r= −0.77, p<0.01. Also, the 20 m sprint with a ball (r= 0.68 and the T-test (r= −0.57 correlated (p<0.05 with the experience in playing wheelchair basketball. Therefore, in this team the correlations of the performance variables differed when they were related to the disability class, the years of dependence on the wheelchair and the experience in playing wheelchair basketball. These results should be taken into account by the technical staff and coaches of the teams when assessing performance of wheelchair basketball players.

  20. Factors associated with deep tissue injury in male wheelchair basketball players of a Japanese national team

    Directory of Open Access Journals (Sweden)

    Hirotaka Mutsuzaki

    2014-04-01

    Full Text Available Maintenance of the sporting activity of elite athletes in adapted sports can be difficult if a secondary disorder, such as a pressure ulcer, occurs. Pressure ulcers result from deep tissue injuries by external pressure. The purpose of this study was to use ultrasonography to investigate deep tissue injuries in male wheelchair basketball players of a Japanese national team, and to determine factors associated with the injuries (e.g., body mass index, class of wheelchair basketball, underlying disease, length of athletic career, and whether use of wheelchair is primarily for playing basketball. Twenty male Japanese wheelchair basketball players on the national team for the 2012 London Paralympic Games (12 representative players and eight candidate representative players participated in this study. The sacral region and bilateral ischial regions in each athlete were examined by ultrasonography to detect low-echoic lesions indicative of deep tissue injuries. Nine (45% players had low-echoic lesions, which were detected in 10 of 60 areas. Eight lesions were detected in the sacral region and two lesions were detected in the ischial region. More players with spinal cord injury had low-echoic lesions [9 (69.2% of 13 players], compared to players with skeletal system disease [0 (0% of 7 players, p = 0.002]. Players who used a wheelchair in daily life were more likely to have low-echoic lesions [8 (66.74% of 12 players], compared to players who primarily used a wheelchair for playing basketball [1 (12.5% of 8 players, p = 0.010]. Deep tissue injuries were detected in 45% of male Japanese wheelchair basketball players on the national team. Players with spinal cord injury and players who used a wheelchair in daily life were more likely to have deep tissue injuries, particularly in the sacral region. The lesions were small, but a periodic medical check should be performed to maintain athletes' sporting life.

  1. METHODOLOGICAL ANALYSIS OF TRAINING STUDENT basketball teams

    Directory of Open Access Journals (Sweden)

    Kozina Zh.L.

    2011-06-01

    Full Text Available Considered the leading position of the preparation of basketball teams in high schools. The system includes the following: reliance on top-quality players in the structure of preparedness, widespread use of visual aids, teaching movies and cartoons with a record of technology implementation of various methods by professional basketball players, the application of the methods of autogenic and ideomotor training according to our methodology. The study involved 63 students 1.5 courses from various universities of Kharkov 1.2 digits: 32 experimental group and 31 - control. The developed system of training students, basketball players used within 1 year. The efficiency of the developed system in the training process of students, basketball players.

  2. Prevention of Lower Extremity Injuries in Basketball

    OpenAIRE

    2015-01-01

    Context: Lower extremity injuries are common in basketball, yet it is unclear how prophylactic interventions affect lower extremity injury incidence rates. Objective: To analyze the effectiveness of current lower extremity injury prevention programs in basketball athletes, focusing on injury rates of (1) general lower extremity injuries, (2) ankle sprains, and (3) anterior cruciate ligament (ACL) tears. Data Sources: PubMed, MEDLINE, CINAHL, SPORTDiscus, and the Cochrane Register of Controlle...

  3. Quantum field theory for the gifted amateur

    CERN Document Server

    Lancaster, Tom

    2014-01-01

    Quantum field theory is arguably the most far-reaching and beautiful physical theory ever constructed, with aspects more stringently tested and verified to greater precision than any other theory in physics. Unfortunately, the subject has gained a notorious reputation for difficulty, with forbidding looking mathematics and a peculiar diagrammatic language described in an array of unforgiving, weighty textbooks aimed firmly at aspiring professionals. However, quantum field theory is too important, too beautiful, and too engaging to be restricted to the professionals. This book on quantum field theory is designed to be different. It is written by experimental physicists and aims to provide the interested amateur with a bridge from undergraduate physics to quantum field theory. The imagined reader is a gifted amateur, possessing a curious and adaptable mind, looking to be told an entertaining and intellectually stimulating story, but who will not feel patronised if a few mathematical niceties are spelled out in ...

  4. Space Creation Dynamics in Basketball Small-Sided Games.

    Science.gov (United States)

    Bredt, Sarah G T; Morales, Juan C P; Andrade, André G P; Torres, Juliana O; Peixoto, Gustavo H; Greco, Pablo J; Praça, Gibson M; Chagas, Mauro H

    2017-01-01

    Space creation dynamics (SCDs) describe actions players perform to create a scoring opportunity. This study compared SCDs and types of offense during three different three versus three (3vs.3) basketball small-sided games (SSGs) played in half court: 3vs.3 with man-to-man defense in half playing area (3vs.3HALF), 3vs.3 with man-to-man defense in full playing area (3vs.3FULL), and 3vs.3 with reduced shot clock (3vs.3RT). We also investigated the efficacy of SCDs in all SSGs and the reliability of SCDs in 3vs.3HALF. While the efficacy of SCDs did not differ among these SSGs, 3vs.3RT presented significantly more "space creation with ball dribbled" and "shot clock violations," and less "on ball screens." 3vs.3FULL presented no differences in the SCDs and types of offense compared with 3vs.3HALF. Reliability within 3vs.3HALF was higher for "space creation with ball dribbled," "space creation without the ball," "set offenses," "fast breaks," and "loss of ball during passing or dribbling." We concluded that 3vs.3 basketball SSGs with different rules can be used for training different tactical behaviors important to formal games, especially since the 3vs.3HALF presented good reliability for many variables related to tactical behavior.

  5. Digital literacies for amateurs and professionals

    OpenAIRE

    Koltay, Tibor; Takács, Eszter

    2010-01-01

    Information literacy education can benefit from a balanced view of different literacies and thoroughly scrutinized approaches to their relationship to amateurs and professionals. An analysis and synthesis of an interdisciplinary body of the literature shows that the most prevailing concepts are information literacy, digital literacy and media literacy. An overview of these literacies is provided. The discussion of literacies is unimaginable without taking the Web 2.0 and of the attention e...

  6. Sacral Fatigue Fracture in an Amateur Soccer Player

    Directory of Open Access Journals (Sweden)

    Georgios Tzoanos

    2013-01-01

    Full Text Available Sacral fatigue fractures represent a frequently overlooked cause of low-back and buttock pain in athletes. A high index of clinical suspicion and MRI utilization can provide the accurate diagnosis. A 38-year-old male amateur, midfielder, soccer player presented to our department with aggravating right buttock pain during the previous month, following an increase in training intensity and frequency on an artificial turf field. A point of maximal tenderness was demonstrated over the area of the right sacroiliac joint. No radiographic abnormalities were observed. MRI of the pelvis revealed the presence of a stress fracture in the right sacral ala. The patient underwent conservative treatment and resumed playing soccer 12 weeks later, with no residual or recurrent clinical complaints. Apart from the recent change in training regimen, decreased shock absorption related to the physical properties of old generation artificial turf may have also been involved in this case.

  7. Amateur astronomers in support of observing campaigns

    Science.gov (United States)

    Yanamandra-Fisher, P.

    2014-07-01

    The Pro-Am Collaborative Astronomy (PACA) project evolved from the observational campaign of C/2012 S1 or C/ISON. The success of the paradigm shift in scientific research is now implemented in other comet observing campaigns. While PACA identifies a consistent collaborative approach to pro-am collaborations, given the volume of data generated for each campaign, new ways of rapid data analysis, mining access, and storage are needed. Several interesting results emerged from the synergistic inclusion of both social media and amateur astronomers: - the establishment of a network of astronomers and related professionals that can be galvanized into action on short notice to support observing campaigns; - assist in various science investigations pertinent to the campaign; - provide an alert-sounding mechanism should the need arise; - immediate outreach and dissemination of results via our media/blogger members; - provide a forum for discussions between the imagers and modelers to help strategize the observing campaign for maximum benefit. In 2014, two new comet observing campaigns involving pro-am collaborations have been identified: (1) C/2013 A1 (C/Siding Spring) and (2) 67P/Churyumov-Gerasimenko (CG). The evolving need for individual customized observing campaigns has been incorporated into the evolution of PACA (Pro-Am Collaborative Astronomy) portal that currently is focused on comets: from supporting observing campaigns for current comets, legacy data, historical comets; interconnected with social media and a set of shareable documents addressing observational strategies; consistent standards for data; data access, use, and storage, to align with the needs of professional observers. The integration of science, observations by professional and amateur astronomers, and various social media provides a dynamic and evolving collaborative partnership between professional and amateur astronomers. The recent observation of comet 67P, at a magnitude of 21.2, from Siding

  8. Retear of anterior cruciate ligament grafts in female basketball players: a case series

    Directory of Open Access Journals (Sweden)

    Tanaka Yoshinari

    2010-03-01

    Full Text Available Abstract Background Incidence of anterior cruciate ligament (ACL injuries in young female basketball players is higher than that in male basketball players. Graft retears are more frequent with the increasing number of ACL reconstructions. The present study aimed to examine the incidence of retears in competitive female basketball players. Methods Sixty-four female basketball players (aged 12 to 29 years who underwent primary anatomic double-bundle ACL reconstruction using hamstring grafts participated in the study. We investigated incidence, mechanism, and patient characteristics of ACL graft retears. Mann-Whitney U test was used for statistical analysis, and the level of significance was determined at P Results Six patients suffered from ACL graft retear (9.4%. Mean duration between primary ACL reconstruction and incidence of retears was 11.7 months. However, there were no other postoperative graft ruptures after 24 months. Primary injury and retear mechanisms varied by patient. At six months after the primary ACL reconstruction surgery, mean quadriceps and hamstring strengths were 81% and 87%, respectively, indicating favorable recovery of muscle strength. However, preoperative quadriceps and hamstring strength in the retear group were 65% and 71%, respectively. In particular, preoperative quadriceps strength in the retear group demonstrated a lower value than that in the uninjured group (P Conclusions We observed a high incidence of ACL graft retears in competitive female basketball players, as previously reported. Considering the timing of graft retear occurrences, an early return to playing basketball should be avoided following ACL reconstruction. Closer attention should be paid to player preoperative condition, as well as muscle strength and postoperative status.

  9. Non-Linear Approach in Kinesiology Should Be Preferred to the Linear--A Case of Basketball.

    Science.gov (United States)

    Trninić, Marko; Jeličić, Mario; Papić, Vladan

    2015-07-01

    In kinesiology, medicine, biology and psychology, in which research focus is on dynamical self-organized systems, complex connections exist between variables. Non-linear nature of complex systems has been discussed and explained by the example of non-linear anthropometric predictors of performance in basketball. Previous studies interpreted relations between anthropometric features and measures of effectiveness in basketball by (a) using linear correlation models, and by (b) including all basketball athletes in the same sample of participants regardless of their playing position. In this paper the significance and character of linear and non-linear relations between simple anthropometric predictors (AP) and performance criteria consisting of situation-related measures of effectiveness (SE) in basketball were determined and evaluated. The sample of participants consisted of top-level junior basketball players divided in three groups according to their playing time (8 minutes and more per game) and playing position: guards (N = 42), forwards (N = 26) and centers (N = 40). Linear (general model) and non-linear (general model) regression models were calculated simultaneously and separately for each group. The conclusion is viable: non-linear regressions are frequently superior to linear correlations when interpreting actual association logic among research variables.

  10. Instrumental Methods for Professional and Amateur Collaborations in Planetary Astronomy

    CERN Document Server

    Mousis, O; Beaulieu, J -P; Bouley, S; Carry, B; Colas, F; Klotz, A; Pellier, C; Petit, J -M; Rousselot, P; Dib, M Ali; Beisker, W; Birlan, M; Buil, C; Delsanti, A; Frappa, E; Hammel, H B; Levasseur-Regourd, A -C; Orton, G S; Sanchez-Lavega, A; Santerne, A; Tanga, P; Vaubaillon, J; Zanda, B; Baratoux, D; Boehm, T; Boudon, V; Bouquet, A; Buzzi, L; Dauvergne, J -L; Decock, A; Delcroix, M; Drossart, P; Esseiva, N; Fischer, G; Fletcher, L N; Foglia, S; Gomez-Forrellad, J M; Guarro-Flo, J; Herald, D; Kugel, F; Lebreton, J -P; Lecacheux, J; Leroy, A; Maquet, L; Masi, G; Maury, A; Meyer, F; Pérez-Hoyos, S; Rajpurohit, A S; Rinner, C; Rogers, J H; Roques, F; Schmude,, R W; Sicardy, B; Tregon, B; Vanhuysse, M; Wesley, A; Widemann, T

    2013-01-01

    Amateur contributions to professional publications have increased exponentially over the last decades in the field of Planetary Astronomy. Here we review the different domains of the field in which collaborations between professional and amateur astronomers are effective and regularly lead to scientific publications. We discuss the instruments, detectors, softwares and methodologies typically used by amateur astronomers to collect the scientific data in the different domains of interest. Amateur contributions to the monitoring of planets and interplanetary matter, characterization of asteroids and comets, as well as the determination of the physical properties of Kuiper Belt Objects and exoplanets are discussed.

  11. Performance following a first professional concussion among National Basketball Association players.

    Science.gov (United States)

    Yengo-Kahn, Aaron M; Zuckerman, Scott L; Stotts, Jeff; Zalneraitis, Brian H; Gardner, Ryan M; Kerr, Zachary Y; Solomon, Gary S

    2016-09-01

    Basketball is a physical game played on a hardwood floor among high-jumping athletes at risk for injury. It is currently unknown how sport-related concussion (SRC) affects player performance after injury among professional basketball players. The objective of this study was to explore the impact of SRC on basketball performance among National Basketball Association (NBA) players. A retrospective, archival cohort study was performed that compared NBA player performance following concussion to pre-concussive performance. A comprehensive NBA injury database, compiled from publically available sources, was queried for NBA players who suffered concussion from 2005-06 to 2014-15 (10 seasons). Intra-and inter-player analyses were performed against a matched control group of players who missed playing time for personal reasons. Following application of inclusion/exclusion criteria and a matching process, 51 concussed players and 51 control players were included in analysis. There were no statistically significant decrements in baseline to post-concussion performance metrics in intra-player or player vs. controls after 5 return games. Our findings suggest that at the NBA level, an athlete's performance in the initial 5 games following injury does not suffer from the after-effects of concussive injury. These results may be useful in counseling professional athletes following a concussion.

  12. Physical and Physiological Demands of Experienced Male Basketball Players During a Competitive Game.

    Science.gov (United States)

    Puente, Carlos; Abián-Vicén, Javier; Areces, Francisco; López, Roberto; Del Coso, Juan

    2017-04-01

    Puente, C, Abián-Vicén, J, Areces, F, López, R, and Del Coso, J. Physical and physiological demands of experienced male basketball players during a competitive game. J Strength Cond Res 31(4): 956-962, 2017-The aim of this investigation was to analyze the physical and physiological demands of experienced basketball players during a real and competitive game. Twenty-five well-trained basketball players (8 guards, 8 forwards, and 9 centers) played a competitive game on an outdoor court. Instantaneous running speeds, the number of body impacts above 5 g, and the number of accelerations and decelerations were assessed by means of a 15-Hz global Positioning System accelerometer unit. Individual heart rate was also recorded using heart rate monitors. As a group mean, the basketball players covered 82.6 ± 7.8 m·min during the game with a mean heart rate of 89.8 ± 4.4% of maximal heart rate. Players covered 3 ± 3% of the total distance running at above 18 km·h and performed 0.17 ± 0.13 sprints per minute. The number of body impacts was 8.2 ± 1.8 per minute of play. The running pace of forwards was higher than that of centers (86.8 ± 6.2 vs. 76.6 ± 6.0 m·min; p ≤ 0.05). The maximal speed obtained during the game was significantly higher for guards than that for centers (24.0 ± 1.6 km·h vs. 21.3 ± 1.6 km·h; p ≤ 0.05). Centers performed a lower number of accelerations/decelerations than guards and forwards (p ≤ 0.05). In conclusion, the extraordinary rates of specific movements performed by these experienced basketball players indicate the high physiological demands necessary to be able to compete in this sport. The centers were the basketball players who showed lower physiological demands during a game, whereas there were no differences between guards and forwards. These results can be used by coaches to adapt basketball training programs to the specific demands of each playing position.

  13. Outcomes After Lumbar Disc Herniation in the National Basketball Association.

    Science.gov (United States)

    Minhas, Shobhit V; Kester, Benjamin S; Hsu, Wellington K

    2016-01-01

    Professional basketball players are at risk for lumbar disc herniation (LDH), yet the evidence guiding treatment after operative or nonoperative management of this condition in the National Basketball Association (NBA) is limited. NBA players with LDH will have different performance outcomes based on treatment type. Case-control study. Level 4. Athletes in the NBA with an LDH were identified through team injury reports, transaction records, and public sports archives. A 1:2 case-control study was performed in which LDH players and players without LDH were matched for player variables. Statistical analysis was employed to compare pre- and postindex season performance (games played and player efficiency rating [PER]) and career longevity between test subjects and controls in the operatively treated (OT) and nonoperatively treated (NOT) cohorts. A total of 61 NBA players with LDH were included, of whom 34 underwent discectomy and 27 were managed nonoperatively. Return-to-play (RTP) rates did not differ between NOT and OT players (77.8% vs. 79.4%). When compared with controls, OT players played significantly fewer games and had a lower PER than controls during the first postoperative season, but no difference was seen 2 and 3 years after surgery, with no difference in postoperative career length. In contrast, no difference in games played or PER was seen between NOT players and controls, although NOT players played significantly fewer postindex seasons. NBA players have a high RTP rate regardless of type of treatment for LDH; however, postindex performance differs between surgically and nonoperatively managed patients when compared with players without an LDH. However, further studies with a larger sample size are required for more definitive recommendations. There is a high RTP rate after LDH in the NBA, although postindex performance may differ based on operative versus nonoperative treatment. © 2015 The Author(s).

  14. Outcomes of microfracture in professional basketball players.

    Science.gov (United States)

    Cerynik, Douglas L; Lewullis, Gabriel E; Joves, Brian C; Palmer, Michael P; Tom, James A

    2009-09-01

    Surgical treatment for chondral defects of the knee in competitive running and jumping athletes remains controversial. This study evaluated the performance outcomes of professional basketball players in the National Basketball Association (NBA) who underwent microfracture. Data from 24 professional basketball players from 1997 to 2006 was obtained and analyzed. NBA player efficiency ratings (PER) were calculated for two seasons before and after injury. A control group of 24 players was used for comparison. Study group and control group demographics including age, NBA experience, and minutes per game demonstrated no statistical difference. Mean time to return to an NBA game was 30.0 weeks from the time of surgery. The first season after returning to competition PER and minutes per game decreased by 3.5 (P 0.05) and 3.0 min (P NBA game. On return to competition player performance and minutes per game are diminished.

  15. A review on the basketball jump shot.

    Science.gov (United States)

    Okazaki, Victor H A; Rodacki, André L F; Satern, Miriam N

    2015-06-01

    The ability to shoot an effective jump shot in the sport of basketball is critical to a player's success. In an attempt to better understand the aspects related to expert performance, researchers have investigated successful free throws and jump shots of various basketball players and identified movement variables that contribute to their success. The purpose of this study was to complete a systematic review of the scientific literature on the basketball free throw and jump shot for the purpose of revealing the critical components of shooting that coaches, teachers, and players should focus on when teaching, learning, practising, and performing a jump shot. The results of this review are presented in three sections: (a) variables that affect ball trajectory, (b) phases of the jump shot, and

  16. Biomimetics of throwing at basketball

    Science.gov (United States)

    Merticaru, E.; Budescu, E.; Iacob, R. M.

    2016-08-01

    The paper deals with the inverse dynamics of a kinematic chain of the human upper limb when throwing the ball at the basketball, aiming to calculate the torques required to put in action the technical system. The kinematic chain respects the anthropometric features regarding the length and mass of body segments. The kinematic parameters of the motion were determined by measuring the angles of body segments during a succession of filmed pictures of a throw, and the interpolation of these values and determination of the interpolating polynomials for each independent geometric coordinate. Using the Lagrange equations, there were determined the variations with time of the required torques to put in motion the kinematic chain of the type of triple physical pendulum. The obtained values show, naturally, the fact that the biggest torque is that for mimetic articulation of the shoulder, being comparable with those obtained by the brachial biceps muscle of the analyzed human subject. Using the obtained data, there can be conceived the mimetic technical system, of robotic type, with application in sports, so that to perform the motion of ball throwing, from steady position, at the basket.

  17. [Dietary behaviours of volleyball and basketball players].

    Science.gov (United States)

    Szczepańska, Elzbieta; Spałkowska, Agnieszka

    2012-01-01

    In sports, such as basketball and volleyball, players must demonstrate the speed, strength, stamina and concentration. Correct nutrition affects the strength of the muscles and the extension of capacity. It is also necessary for the proper functioning of the nervous system and determines the rate of regeneration after physical effort. The aim of this study was to assess dietary behaviours of professional volleyball and basketball players and compare the prevalence of correct behaviours in both groups. 209 professional volleyball and basketball players from sports clubs localized in six Silesian cities were survived with the mean of author questionnaire. The chi-square test was used to examine differences in the prevalence of the correct behaviours among players. Analysis of the results obtained showed that 52% of the players had 4-5 meals a day. 35% of respondents had wholemeal bread and/or groats daily. Milk and dairy products daily ate 71% of surveyed players, meat and sausages 70% respectively. 41% of respondents had cottage cheese and 28% had fish several times a week. Vegetables and fruit were eaten by 21% and respectively 23% of respondents. Sweets were eaten daily by 40% of surveyed, while fast-food were eaten several times a week by 17% of players. Nutrients for athletes were used by 32%, and vitamin supplementation by 48% of respondents. Prevalence of correct dietary behaviour in the group of professional volleyball and basketball players differed. Basketball players statistically more frequently than volleyball players had 4-5 meals a day, had wholemeal bread and/or thick groats, milk and dairy products, meat and sausages, especially poultry. They had raw vegetables and fruit several times a day. They drank more than 2.5 liters of fluids per day. They also significantly more frequently than volleyball players consumed the fast-food occasionally or never. Dietary behaviours of surveyed players were incorrect. Comparison of prevalence of proper behaviours

  18. 77 FR 50584 - Voluntary Licensing of Amateur Rocket Operations

    Science.gov (United States)

    2012-08-22

    ... are summarized below. Total Benefits and Costs The FAA does not require licensing of amateur rocket... of this rule. To the extent the licensing requirements provide a societal benefit, those benefits... Federal Aviation Administration 14 CFR Part 400 RIN 2120-AJ84 Voluntary Licensing of Amateur...

  19. An Exploration of Personality Traits in Older Adult Amateur Musicians

    Science.gov (United States)

    Coffman, Don D.

    2007-01-01

    The primary research question for the study was, "Will older adult amateur musicians' personality profiles reflect the traits found in professional musicians?" Participants (N = 58, ages 52 to 79) recruited from a New Horizons Institute "band camp" for older adult amateur musicians completed a musical background questionnaire and the Cattell…

  20. Injury in the National Basketball Association

    Science.gov (United States)

    Drakos, Mark C.; Domb, Benjamin; Starkey, Chad; Callahan, Lisa; Allen, Answorth A.

    2010-01-01

    Background: Injury patterns in elite athletes over long periods continue to evolve. The goal of this study was to review of the injuries and medical conditions afflicting athletes competing in the National Basketball Association (NBA) over a 17-year period. Design: Descriptive epidemiological study. Methods: Injuries and player demographic information were reported by each team’s athletic trainer. Criteria for reportable injuries were those that resulted in (1) physician referral, (2) a practice or game being missed, or (3) emergency care. The demographics, frequency of injury, time lost, and game exposures were tabulated, and game-related injury rates and 95% confidence intervals were calculated. Results: A total of 1094 players appeared in the database 3843 times (3.3 ± 2.6 seasons). Lateral ankle sprains were the most frequent orthopaedic injury (n, 1658; 13.2%), followed by patellofemoral inflammation (n, 1493; 11.9%), lumbar strains (n, 999; 7.9%), and hamstring strains (n, 413; 3.3%). The most games missed were related to patellofemoral inflammation (n, 10 370; 17.5%), lateral ankle sprains (n, 5223; 8.8%), knee sprains (n, 4369; 7.4%), and lumbar strains (n, 3933; 6.6%). No correlations were found between injury rate and player demographics, including age, height, weight, and NBA experience. Conclusion: Professional athletes in the NBA experience a high rate of game-related injuries. Patellofemoral inflammation is the most significant problem in terms of days lost in competition, whereas ankle sprains are the most common injury. True ligamentous injuries of the knee were surprisingly rare. Importantly, player demographics were not correlated with injury rates. Further investigation is necessary regarding the consequences and sport-specific treatment of various injuries in NBA players. Clinical Relevance: Knowledge of these injury patterns can help to guide treatments and provide more accurate guidelines for an athlete to return to play. PMID:23015949

  1. COMPARISON OF AEROBİC, ANAEROBİC POWER FEATURES BASKETBALL AND HANDBALL TEAM PLAYERS

    Directory of Open Access Journals (Sweden)

    GÜRHAN SUNA

    2016-12-01

    Full Text Available The aim of this study was to compare whether there were differences or not in aerobic and anaerobic power features of Süleyman Demirel University men’s basketball and handball team players. 24 athletes joined to the study who are players of Süleyman Demirel University basketball (n=12 and handball (n=12 team. All measurements of ahtletes who joined to the research were applied at Süleyman Demirel University Atatürk Sport Hall and Performance Testing Laboratory. Measurements of 20 m Shuttle Run and Wingate Anaerobic Power tests were taken from ahtletes. Handled datas were compared by using “Independent Samples t-Test” at SPSS 18.0 Statistic Programme. As a result of comparing lenght, weight, 20 m shuttle run test, wingate anaerobic power test absolute and relative values of basketball and handball players, differences were found to be statistically significiant (p<0.05. To conclude, differences were defined between the two branches as evaluating in terms of the results of basketball and handball players of aerobic and anaerobic power parameters. As a result of this, we are thinking that this is due to differences in playing time, different training methods and the physical differences that the branch needs

  2. VOLUME OF PHYSICAL ACTIVITY AND INJURY OCCURRENCE IN YOUNG BASKETBALL PLAYERS

    Directory of Open Access Journals (Sweden)

    Jenny Gianoudis

    2008-03-01

    Full Text Available Participation in organised, competitive physical activity by young athletes is increasing rapidly. This is concurrent with an increase in sporting injuries in the young population. This pilot study aimed to compare the weekly volume and types of physical activity in young basketball players injured and not injured during the season. Detailed physical activity and injury data were prospectively collected in 46 school-level basketball players aged 14 to 18 years. Participants completed physical activity logs which documented the type of physical activity undertaken, what the activity consisted of (i.e. training, competition and the level at which it was played on a daily basis. Allied health staff completed a weekly injury form. Results showed that injured and uninjured athletes participated in a similar volume of total weekly physical activity over the season. However, injured athletes (p = 0.04 and athletes who specifically sustained overuse injuries (p = 0.01 participated in a greater amount of basketball refereeing than uninjured athletes. Based on these findings it was concluded that greater participation in running-type physical activity such as refereeing, as an addition to training and competition, may predispose the young basketball player to increased injury risk. Future research using larger sample sizes are required to further investigate the role of participation volume and type on injury occurrence in adolescent athletes

  3. How Online Access Changed Amateur Video Editing

    Directory of Open Access Journals (Sweden)

    Eugster Benjamin

    2014-12-01

    Full Text Available Digital technology has often been discussed in relation to how it changed either the production or the reception of audiovisual cultures. This paper will consider a combination of both as a crucial part in understanding strategies of inter- and transmedial amateur creativity. Based on an experimental ethnography of the online video subgenre/subculture “YouTubePoop,” the paper will elaborate on the connection between the individual experience and the creation of digital media. The loose collective of independent amateurs behind the YouTubePoop videos makes use of already existing audiovisual material ranging from television shows to videos of other YouTube users. The re-created remixes and mash-ups are characterized by their random selection of original material and their nonsensical humour. Hence, the rapid montage of this heterogeneous content is just as much part of the intensified aesthetic expressiveness as are the applied special effects available in the digital video editing software. Both aspects highlight the strong interdependence of the rapid accessibility of online content and digital technology and the new aesthetic expressions they are fostering. The paper will show how the experience and navigation of digital interfaces (editing software, media players, or homepages affect the design and practice of these video-remixes. This will open the discussion about intertextual strategies of media appropriation to an aesthetic and praxeological analysis of media interaction.

  4. Reception and dissemination of American amateur telescope making in Sweden

    Science.gov (United States)

    Karnfelt, Johan

    2017-04-01

    This paper discusses the appropriation of the American Amateur Telescope Making (ATM) movement in Sweden in the 1940s and 1950s. A key player was the Swedish Astronomical Society, which in 1943, and inspired by the American example, launched a campaign to raise interest in ATM and disseminate the necessary knowledge amongst potential amateur astronomers. The campaign was successful and in just a few years it quadrupled the number of amateurs with access to telescopes. Swedish amateurs kept on building telescopes through the 1950s, but the activities then stalled with the introduction of cheap mass-market telescopes. The appropriation of ATM in Sweden is an important example of how technical innovations have shaped the course of amateur astronomy.

  5. The Spanish "Century XXI" academy for developing elite level basketballers: design, monitoring and training methodologies.

    Science.gov (United States)

    Calleja-González, Julio; Mielgo-Ayuso, Juan; Lekue, José Antonio; Leibar, Xabier; Erauzkin, Julen; Jukic, Igor; Ostojic, Sergej M; Delextrat, Anne; Sampaio, Jaime; Terrados, Nicolás

    2016-01-01

    The XXI Century Academy was a 6-year state-initiated intervention program that served as an alternative to basketball clubs for players in the u-14 and u-18 age groups in Spain, under guidelines established by the Spanish Basketball Federation. It was an important and unique project on talent development in basketball. To the best of the authors' knowledge, no evidence has been reported on long-term athlete development programs in basketball worldwide. The main aim of this report is to describe the design and evaluation methods used for the XXI Century Academy as a long-term intervention program in the elite Spanish Basketball Academy, aiming to prepare basketball players to compete at the elite level. The monitoring time lasted from 1996 to 2001. A total of 55 players were assigned to the intervention groups based on age, position, maturation level, and country of origin. During this process, participants competed in up to two categories in addition to playing competitive official matches worldwide in international tournaments in their categories and with the national team in the European and World Championships (u-14 - u-18). Participants included 1 NBA player, 3 national A Team players, 10 ACB (First Spanish League) players, 5 LEB (second League) players and 39 LEB-2 EBA (third League) players. Assessments took place in a High-Performance Sports Center (CPT FADURA-GETXO- Basque Government, Getxo, Vizcaya, Spain) and consisted of health questionnaires, anthropometric measures, blood parameters, maturation level, birth age, fitness tests, training volume and intensity, physical activity, technical and tactical training, dietary intake, supplementation and injuries. Each player was assessed 4 times per year (September, December, April, June) for 4 years (16 data points). This is a purely methodological paper describing the design and evaluation methods used in the XXI Century Project, which will be used as a basis for future reporting of results. Therefore, the

  6. Somatotype and size of elite female basketball players.

    Science.gov (United States)

    Carter, J E L; Ackland, T R; Kerr, D A; Stapff, A B

    2005-10-01

    The aim of this study was to compare the somatotype and size of elite female basketball players in terms of playing position and team performance. Anthropometry and somatotype data were collected on 168 players from 14 countries before the Women's World Basketball Championship, Australia, 1994. There were 64 guards (mean +/- s: age 25.4 +/- 3.3 years, height 1.72 +/- 0.06 m, mass 66.1 +/- 6.2 kg, somatotype = 2.9-3.9-2.6), 57 forwards (age 25.2 +/- 3.8 years, height 1.81 +/- 0.06 m, mass 73.3 +/- 5.9 kg, somatotype = 2.8-3.5-3.2) and 47 centres (age 24.1 +/- 3.1 years, height 1.90 +/- 0.06 m, mass 82.6 +/- 8.2 kg, somatotype = 3.2-3.1-3.4). Mean somatotypes by position were significantly different (F = 7.73, P somatotypes by position and team placing, but the combination of height, mass and ectomorphy provide the best differentiation by position.

  7. Who needs a referee? How incorrect basketball actions are automatically detected by basketball players' brain

    OpenAIRE

    Alice Mado Proverbio; Nicola Crotti; Mirella Manfredi; Roberta Adorni; Alberto Zani

    2012-01-01

    While the existence of a mirror neuron system (MNS) representing and mirroring simple purposeful actions (such as reaching) is known, neural mechanisms underlying the representation of complex actions (such as ballet, fencing, etc.) that are learned by imitation and exercise are not well understood. In this study, correct and incorrect basketball actions were visually presented to professional basketball players and naïve viewers while their EEG was recorded. The participants had to respond t...

  8. Research on the achievement motivation levels of the amateur football players

    Directory of Open Access Journals (Sweden)

    Yalçın İlimdar

    2017-01-01

    Full Text Available This study was conducted to determine the achievement motivation levels of the amateur football players based upon the importance of motivation on the athletes’ successes. The research group comprises 243 voluntary amateur football players who actively participated in the competitions during 2016-2017 season in Elazig. In the study, “Sports-Specific Achievement Motivation Scale” that was developed by Willis (1982 and adapted to Turkish by Tiryaki and Godelek (1997 was used. The collected data were analyzed through SPSS 22 programme. The margin of error was accepted as p<0.05. The cronbach alpha value was found as ,78. Consequently; when the subscales of achievement motivation of the amateur soccer players participating in the study were analyzed with some variables, it was found that there was a statistically significant difference between those aged 22-24 years and those aged 25-27 years in approach success. In the team playing year variable, the statistical significance was found between the ones who have 1 year football history in the team and those who are 5 years or more in the approach success. It was observed the approach to achievement motivation increased as the experience of playing for a team increased. As for the year of working with a trainer variable, it was found that there was a statistically significant difference between those who had 1 year past with coach and those who had 2 years past with the motivation to avoid failure.

  9. RELATIONS BETWEEN DOMESTIC AND FOREIGN BASKETBALL PLAYER IN BASKETBALL T EAM

    Directory of Open Access Journals (Sweden)

    Besnik Morina

    2012-09-01

    Full Text Available The goal of this research based on socio-metric test results, to show the relations between domestic basketball players and visitors basketball players within Trepça basketball Club from Mitrovica. The research has been made based on a sample of Kosovo Superleague in basketball, in fact with the basketball players of Trepça from Mitrovica during 2008/09. Based on this sample 16 basketball players aged 19 to 30 have been included. Relevant data about this research have been collected through a questionnaire (Paranosic and Lazareviq, 1975. Based on the socio-metric results we can come to the conclusion that there is a different socio-metric structure in the team. There are individuals who were different from the others in the team based on positive evaluation (+ so-called “star” in the team, who were the domestic players as well as individuals who were negatively (- evaluated, so-called “the negative stars”, who represent a weaker relation in the team, and the were the visitors.

  10. NBA扣篮展示的篮球文化对篮球训练起到的导向作用%NBA's Dunking Show Basketball Culture and its Guiding Role to the Improvement of China's Basketball Training

    Institute of Scientific and Technical Information of China (English)

    李向前

    2011-01-01

    NBA篮球技术层文化是以篮球核心技术——投篮为载体的,而扣篮这一独特、富有激情与想象的技术,所展现的是美国篮球的个性文化、球星文化、审美文化。NBA扣篮展示文化符合了现阶段篮球运动发展的特征、规律,引领着美国篮球乃至世界篮球的发展方向,对我国篮球训练水平的提高起着重要的导向作用。%Basketball is an upward movement.All the movements of basketball is finally for upward.NBA’s technology culture is based on basketball’s core technology — shooting,which can reflect American basketball culture such as: personality culture,star culture,aesthetic culture.NBA’s "dunking" culture accords with characteristics and laws of present basketball development,and leads the directions of American basketball development and even world basketball development.Therefore it plays an important guiding role to the improvement of China’s basketball.

  11. Exploring Game Performance in the National Basketball Association Using Player Tracking Data.

    Directory of Open Access Journals (Sweden)

    Jaime Sampaio

    Full Text Available Recent player tracking technology provides new information about basketball game performance. The aim of this study was to (i compare the game performances of all-star and non all-star basketball players from the National Basketball Association (NBA, and (ii describe the different basketball game performance profiles based on the different game roles. Archival data were obtained from all 2013-2014 regular season games (n = 1230. The variables analyzed included the points per game, minutes played and the game actions recorded by the player tracking system. To accomplish the first aim, the performance per minute of play was analyzed using a descriptive discriminant analysis to identify which variables best predict the all-star and non all-star playing categories. The all-star players showed slower velocities in defense and performed better in elbow touches, defensive rebounds, close touches, close points and pull-up points, possibly due to optimized attention processes that are key for perceiving the required appropriate environmental information. The second aim was addressed using a k-means cluster analysis, with the aim of creating maximal different performance profile groupings. Afterwards, a descriptive discriminant analysis identified which variables best predict the different playing clusters. The results identified different playing profile of performers, particularly related to the game roles of scoring, passing, defensive and all-round game behavior. Coaching staffs may apply this information to different players, while accounting for individual differences and functional variability, to optimize practice planning and, consequently, the game performances of individuals and teams.

  12. Exploring Game Performance in the National Basketball Association Using Player Tracking Data

    Science.gov (United States)

    Calleja-González, Julio; Jiménez Sáiz, Sergio; Schelling i del Alcázar, Xavi; Balciunas, Mindaugas

    2015-01-01

    Recent player tracking technology provides new information about basketball game performance. The aim of this study was to (i) compare the game performances of all-star and non all-star basketball players from the National Basketball Association (NBA), and (ii) describe the different basketball game performance profiles based on the different game roles. Archival data were obtained from all 2013-2014 regular season games (n = 1230). The variables analyzed included the points per game, minutes played and the game actions recorded by the player tracking system. To accomplish the first aim, the performance per minute of play was analyzed using a descriptive discriminant analysis to identify which variables best predict the all-star and non all-star playing categories. The all-star players showed slower velocities in defense and performed better in elbow touches, defensive rebounds, close touches, close points and pull-up points, possibly due to optimized attention processes that are key for perceiving the required appropriate environmental information. The second aim was addressed using a k-means cluster analysis, with the aim of creating maximal different performance profile groupings. Afterwards, a descriptive discriminant analysis identified which variables best predict the different playing clusters. The results identified different playing profile of performers, particularly related to the game roles of scoring, passing, defensive and all-round game behavior. Coaching staffs may apply this information to different players, while accounting for individual differences and functional variability, to optimize practice planning and, consequently, the game performances of individuals and teams. PMID:26171606

  13. Exploring Game Performance in the National Basketball Association Using Player Tracking Data.

    Science.gov (United States)

    Sampaio, Jaime; McGarry, Tim; Calleja-González, Julio; Jiménez Sáiz, Sergio; Schelling I Del Alcázar, Xavi; Balciunas, Mindaugas

    2015-01-01

    Recent player tracking technology provides new information about basketball game performance. The aim of this study was to (i) compare the game performances of all-star and non all-star basketball players from the National Basketball Association (NBA), and (ii) describe the different basketball game performance profiles based on the different game roles. Archival data were obtained from all 2013-2014 regular season games (n = 1230). The variables analyzed included the points per game, minutes played and the game actions recorded by the player tracking system. To accomplish the first aim, the performance per minute of play was analyzed using a descriptive discriminant analysis to identify which variables best predict the all-star and non all-star playing categories. The all-star players showed slower velocities in defense and performed better in elbow touches, defensive rebounds, close touches, close points and pull-up points, possibly due to optimized attention processes that are key for perceiving the required appropriate environmental information. The second aim was addressed using a k-means cluster analysis, with the aim of creating maximal different performance profile groupings. Afterwards, a descriptive discriminant analysis identified which variables best predict the different playing clusters. The results identified different playing profile of performers, particularly related to the game roles of scoring, passing, defensive and all-round game behavior. Coaching staffs may apply this information to different players, while accounting for individual differences and functional variability, to optimize practice planning and, consequently, the game performances of individuals and teams.

  14. Performance Indicators of the Top Basketball Players: Relations with Several Variables.

    Science.gov (United States)

    Sindik, Josko

    2015-09-01

    The aim of this study was to determine the differences in performance indicators for top senior male basketball players, with respect to several independent variables: position in the team, total situation-related efficiency, age, playing experience and the time spent on the court within the game and during championship season. The final sample of participants was selected from all teams in A-1 Croatian men's basketball league. Significant differences have been found according to the players': position in the team, total situation-related efficiency, and in interactions of the position in the team / total situation-related efficiency and minutes spent on the court in a game / playing experience. The differences in the situation-related efficiency between players have not been found according to the players' age and the number of games played. Further research can be directed towards deeper analysis of the influence of more complex differentiated variables playing experience and time spent on the court in a game on situation-related efficiency in basketball.

  15. Alcohol use among amateur sportsmen in Ireland.

    LENUS (Irish Health Repository)

    O'Farrell, Anne M

    2010-11-18

    ABSTRACT: BACKGROUND: The objective of this study was to establish baseline data on alcohol consumption patterns, behaviours and harms among amateur sportsmen in the Republic of Ireland. FINDINGS: The study presents findings from the baseline survey for a cluster randomised controlled trial to evaluate the effectiveness of a community intervention programme to reduce problem alcohol use among a representative sample of Gaelic Athletic Association (GAA) clubs in two counties in the Republic of Ireland. Self reported alcohol use, prevalence of binge drinking, AUDIT scores and alcohol-related harms were assessed in amateur GAA sportsmen aged 16 years and over. Nine hundred and sixty (960) players completed questionnaires (72% response rate). Mean age was 24.0 years (S.D. 5.2). Of those aged 18 years or over, 75% had post-primary education; most (864, 90%) were current drinkers and 8.2% were regular smokers. The self-reported average yearly alcohol consumption was 12.5 litres. Almost one third (31%) of current drinkers reported drinking over the recommended limit of 21 standard drinks per week and just over half (54.3 %) reported drinking 6 or more standard drinks in a row at least once a week (regular binge drinking). Of those who (self) completed the Alcohol Use Disorder Identification Test (AUDIT) questionnaire, three-quarters (74.7%) had a score of 8 or more; 11.5% had a score of 20 or above warranting referral for diagnostic evaluation and treatment. Almost all (87.6%) of the 864 drinkers reported experiencing at least one harm due to their drinking. These alcohol misuse outcomes were higher than those found in a nationally representative sample of males of a similar age. There were strong associations between regular binge drinking and reporting harms such as being in a fight (adjusted odds ratio (OR) 2.02, p<0.001), missing time from work or college (adjusted OR 1.39, p=0.04) or being in an accident (adjusted OR 1.78, p=0.04). CONCLUSIONS: These male amateur

  16. Magnitude of stress reported by basketball referees.

    Science.gov (United States)

    Rainey, D; Winterich, D

    1995-12-01

    723 basketball referees responded to a survey that assessed stress related to officiating. Mean reported ratings were between "very little" and "moderate amount"; only 4% reported high stress. Results are consistent with other accounts, suggesting that most sport officials experience low occupational stress.

  17. Requiring Competencies of Basketball Coaches in Greece

    Directory of Open Access Journals (Sweden)

    NIKOLAOS KOSTOPOULOS

    2011-01-01

    Full Text Available The purpose of this investigation was to identify the competencies of Basketball coaches in Greece. The current study is based on previous work done by Rodrigues et al, (11, and Tripolitsioti et al, (14,17, who measured competencies both in Portuguese basketball coaches and directors of indoor sport facilities in Greece. Two hundred and forty five basketball coaches of three Greek Divisions (first, second and third participated in the study and completed the scale. Exploratory factor analysis revealed 5 factors consisting of 21 competency statements: Sport science/practice (6 items, communication/leadership (5 items, first aid/risk management (2 items, computer skills (4 items, and programming 4 items. Moreover, the results demonstrated that first aid and training skills were the top rated competencies, following by management and computer skills, while facility & event management were the low rated competencies. These results validate that the successful basketball coaches didn’t only have training competencies, but management, computer skills, first aid, communication, facility management and event management.

  18. Kinematics of the free throw in basketball

    Science.gov (United States)

    Tan, A.; Miller, G.

    1981-06-01

    The kinematics of the two basic styles of free throw in basketball are discussed. It is shown that from a purely kinematic and trajectory point of view, the overhand push shot is preferable to the underhand loop shot. The advantages of the underhand shot lie in the actual execution of the shot.

  19. BASKETBALL IN THE TERRITORY OF FORMER YUGOSLAVIA FROM 1ST OF JANUARY 1942 UNTIL THE 9TH OF MAY 1945

    OpenAIRE

    Kristina Pantelić; Slobodan Simović; Petar Pavlović; Zrinko Grgić

    2011-01-01

    Development of basketball in the territory of former Yugoslavia in the time of II World War remained quite un-researched. Even though it was truly played, with almost same intensity as before the War, for a long time people were silent and wrote very little about it. During the period (1942 – 1945) several sport clubs existed in Belgrade: Sk. 1913, Bask, Bsk, Btk, Bob, Obilić, Sask, Bankarac, Izbeglice (Refugees), Vladan Matics’ club and others who cherished basketball in newly-formed teams. ...

  20. [Muscular trunk stability in professional and amateur volleyball players].

    Science.gov (United States)

    Miltner, O; Siebert, C; Tschaepe, R; Maus, U; Kieffer, O

    2010-03-01

    The aim of this study was to analyse the efficiency of muscular activity in the trunk stabilisation of professional volleyball players compared to a group of amateur hobby players. The results were compared amongst the groups as well as with a reference group consisting of asymptomatic individuals. The question to be answered was whether or not professional volleyball players possess a characteristic strength profile in their trunk musculature and if differences exist with regard to the individuals' competitive playing level. In this comparative study 12 professional volleyball players (German Bundesliga) and 18 non-professional volleyball players were analysed with regard to their isometric strength profile in all three planes. The reference group was provided by the Proxomed company, which had previously analysed healthy untrained individuals (n = 1045) of various age groups. A sports-specific profile for the musculature of volleyball players revealed a significant reduction in the flexion and rotation strength as well as a well-developed lateral flexion strength (highly significant when compared to the reference group). With reference to the level played, better strength values in flexion and lateral flexion were found among the professional athletes. Professional volleyball players present with a characteristic trunk musculature strength profile. A detailed analysis of the muscle strength of the spine as part of a sports medicine work-up could prove helpful in preventing injuries and overuse problems in professional and hobby volleyball players.

  1. Game Related Statistics Discriminating Between Starters and Nonstarters Players in Women'S National Basketball Association League (WNBA).

    Science.gov (United States)

    Gòmez, Miguel-Ángel; Lorenzo, Alberto; Ortega, Enrique; Sampaio, Jaime; Ibàñez, Sergio-José

    2009-01-01

    The aim of the present study was to identify the game-related statistics that allow discriminating between starters and nonstarter players in women's basketball when related to winning or losing games and best or worst teams. The sample comprised all 216 regular season games from the 2005 Women's National Basketball Association League (WNBA). The game-related statistics included were 2- and 3- point field-goals (both successful and unsuccessful), free-throws (both successful and unsuccessful), defensive and offensive rebounds, assists, blocks, fouls, steals, turnovers and minutes played. Results from multivariate analysis showed that when best teams won, the discriminant game-related statistics were successful 2-point field-goals (SC = 0.47), successful free-throws (SC = 0.44), fouls (SC = -0.41), assists (SC = 0.37), and defensive rebounds (SC = 0.37). When the worst teams won, the discriminant game-related statistics were successful 2-point field- goals (SC = 0.37), successful free-throws (SC = 0.45), assists (SC = 0.58), and steals (SC = 0.35). The results showed that the successful 2-point field-goals, successful free-throws and the assists were the most powerful variables discriminating between starters and nonstarters. These specific characteristics helped to point out the importance of starters' players shooting and passing ability during competitions. Key pointsThe players' game-related statistical profile varied according to team status, game outcome and team quality in women's basketball.The results of this work help to point out the different player's performance described in women's basketball compared with men's basketball.The results obtained enhance the importance of starters and nonstarters contribution to team's performance in different game contexts.Results showed the power of successful 2-point field-goals, successful free-throws and assists discriminating between starters and nonstarters in all the analyses.

  2. Time-motion analysis and physiological data of elite under-19-year-old basketball players during competition.

    Science.gov (United States)

    Ben Abdelkrim, Nidhal; El Fazaa, Saloua; El Ati, Jalila

    2007-02-01

    The physical demands of modern basketball were assessed by investigating 38 elite under-19-year-old basketball players during competition. Computerised time-motion analyses were performed on 18 players of various positions. Heart rate was recorded continuously for all subjects. Blood was sampled before the start of each match, at half time and at full time to determine lactate concentration. Players spent 8.8% (1%), 5.3% (0.8%) and 2.1% (0.3%) of live time in high "specific movements", sprinting and jumping, respectively. Centres spent significantly lower live time competing in high-intensity activities than guards (14.7% (1%) v 17.1% (1.2%); prules of basketball have slightly increased the cardiac efforts involved during competition. The game intensity may differ according to the playing position, being greatest in guards.

  3. Time–motion analysis and physiological data of elite under‐19‐year‐old basketball players during competition

    Science.gov (United States)

    Abdelkrim, Nidhal Ben; Fazaa, Saloua El; Ati, Jalila El

    2007-01-01

    The physical demands of modern basketball were assessed by investigating 38 elite under‐19‐year‐old basketball players during competition. Computerised time–motion analyses were performed on 18 players of various positions. Heart rate was recorded continuously for all subjects. Blood was sampled before the start of each match, at half time and at full time to determine lactate concentration. Players spent 8.8% (1%), 5.3% (0.8%) and 2.1% (0.3%) of live time in high “specific movements”, sprinting and jumping, respectively. Centres spent significantly lower live time competing in high‐intensity activities than guards (14.7% (1%) v 17.1% (1.2%); prules of basketball have slightly increased the cardiac efforts involved during competition. The game intensity may differ according to the playing position, being greatest in guards. PMID:17138630

  4. Mycobacterium fortuitum cutaneous infection from amateur tattoo.

    Science.gov (United States)

    Suvanasuthi, Saroj; Wongpraparut, Chanisada; Pattanaprichakul, Penvadee; Bunyaratavej, Sumanas

    2012-06-01

    A case of cutaneous Mycobacterium fortuitum infection after receiving an amateur tattoo is reported. A few days after tattooing, an otherwise healthy 25-year-old Thai male presented with multiple discrete erythematous papules confined to the tattoo area. He was initially treated with topical steroid and oral antihistamine without improvement. Skin biopsy was carried out, and the histopathology showed mixed cell granuloma with a foreign body reaction (tattoo color pigments). The acid-fast bacilli stain was positive. The tissue culture grew M. fortuitum two weeks later. He was treated with clarithromycin 1,000 mg/day and ciprofloxacin 1,000 mg/day for 10 months with complete response. From the clinical aspect, tattoo-associated rapidly growing mycobacterium infection might be difficult to differentiate from the pigment-based skin reactions. Skin biopsy for histopathology and tissue culture for Mycobacterium probably will be needed in arriving at the diagnosis.

  5. Programmatic material on perfection of competition activity of highly skilled basketball players.

    Directory of Open Access Journals (Sweden)

    Sushko Ruslana Aleksandrovna

    2011-09-01

    Full Text Available The special facilities are considered for creation of the programs of correction of training process and perfection of competitiveness activity. Basic estimations and structure of correction of technical tactical actions are resulted. It is set that programmatic material must take into account playing specialization of basketball-player, model indexes. It is also necessary to take into account optimization and modification of existent technologies of estimation of technical tactical actions.

  6. Hard Play

    Institute of Scientific and Technical Information of China (English)

    KIT GILLET

    2008-01-01

    @@ "On the day I first crossed the line from being an amateur footballer into a life obsessed with trying to prove football could be as powerful in China as it is in Brasil,I found myself investing much more than was emotionally or financially comfortable."

  7. Impact of Bony Stress Injuries on Professional Basketball Performance

    Science.gov (United States)

    Khan, Moin; Madden, Kim; Rogowski, Joseph P.; Stotts, Jeff; Burrus, Matthew Tyrrell; Samani, Marisa; Sikka, Robby Singh; Bedi, Asheesh

    2017-01-01

    Objectives: Players in the National Basketball Association (NBA) subject their lower extremities to significant repetitive loading during the season as well as during off-season training. Little is known about the incidence and impact of lower extremity bony stress injuries in these athletes. Methods: Using the player injury database maintained by the NBA Players’ Association, all bony stress injuries from 1992 to May 2016 were identified. Those not involving the lower extremity were excluded from the study. Stress fractures and stress reactions were grouped together. Number of games missed due to the injury as well as player statistics including points per game (ppg), assists per game (apg), steals per game (spg), and blocks per game (bpg) were collected from two years prior to the injury to two years after the injury. Results: 76 lower extremity bony stress injuries were identified involving 75 different NBA players with an average player age of 25.4 ± 4.1 years. 55.3% (42/76) involved the foot, 21.1% (16/76) involved the ankle or fibula, 17.1% (13/76) involved the tibia, and 6.6% (5/76) involved either the knee or patella. The majority of injuries occurred in season 82.9% (63/76) with half of the injuries occurring within the first 6 weeks of the season. 38.2% (29/76) of these injuries were managed surgically. An average of 25.1 ± 21.3 games were missed. 19.7% (15/76) of patients who sustained a stress fracture also had a subsequent injury. 29.2% (21/76) of players were not able to return to professional basketball after the season in which the injury was sustained; however, those who were able to return to the same level of play did not see a significant change in performance as measured by ppg, apg, spg, or bpg when comparing the season prior to the injury and either one or two years after the injury. Stress injuries to the foot carried the worst prognosis, 57.1% (12/21) of those unable to return to professional basketball sustained such an injury

  8. Application of Monte Carlo Simulations to Improve Basketball Shooting Strategy

    CERN Document Server

    Min, Byeong June

    2016-01-01

    The underlying physics of basketball shooting seems to be a straightforward example of the Newtonian mechanics that can easily be traced by numerical methods. However, a human basketball player does not make use of all the possible basketball trajectories. Instead, a basketball player will build up a database of successful shots and select the trajectory that has the greatest tolerance to small variations of the real world. We simulate the basketball player's shooting training as a Monte Carlo sequence to build optimal shooting strategies, such as the launch speed and angle of the basketball, and whether to take a direct shot or a bank shot, as a function of the player's court positions and height. The phase space volume that belongs to the successful launch velocities generated by Monte Carlo simulations are then used as the criterion to optimize a shooting strategy that incorporates not only mechanical, but human factors as well.

  9. Transfer of motor and perceptual skills from basketball to darts.

    Science.gov (United States)

    Rienhoff, Rebecca; Hopwood, Melissa J; Fischer, Lennart; Strauss, Bernd; Baker, Joseph; Schorer, Jörg

    2013-01-01

    The quiet eye is a perceptual skill associated with expertise and superior performance; however, little is known about the transfer of quiet eye across domains. We attempted to replicate previous skill-based differences in quiet eye and investigated whether transfer of motor and perceptual skills occurs between similar tasks. Throwing accuracy and quiet eye duration for skilled and less-skilled basketball players were examined in basketball free throw shooting and the transfer task of dart throwing. Skilled basketball players showed significantly higher throwing accuracy and longer quiet eye duration in the basketball free throw task compared to their less-skilled counterparts. Further, skilled basketball players showed positive transfer from basketball to dart throwing in accuracy but not in quiet eye duration. Our results raise interesting questions regarding the measurement of transfer between skills.

  10. Are amateur football players really amateur?: An investigation on professionalisation trend of amateur footballAmatör futbolcular gerçekten amatör mü?: Amatör futbolun profesyonelleşme eğilimi üstüne bir araştırma

    Directory of Open Access Journals (Sweden)

    Mert Kerem Zelyurt

    2014-02-01

    Full Text Available In Turkey football is the most intriguing sport branch that ensure the growing interest of active participation in amateur football player. It is seen that amateur soccer leagues in Turkey consist of Regional Amateur League (BAL, Super Amateur, First Amateur and Second Amateur leagues. Today which amateur football gains economic value and includes the element of hidden professionalism, it is seen that the concept of amateurism must come up for discussion. Altough amateurism means anti-professional, it can be seen that in amateur football leagues’ players provide income from this job. The purpose of the research; is to seek answer to the question which forms the basis question of the research “Is there the element of “income” which belongs to occupational property of professional football in amateur football?”.The research consists of two parts.  In the first part of the research the concept of amateurism were tried to discuss in relation with different concepts, profession of amateur football player as being a job was examined. In the question application which forms the second part, in 2013 Novemver-December, the data obtained from 148 people who are playing in amateur leagues in İstanbul and Edirne and were choosen by “simple random sampling” method, evaluated by SPSS 17 Statistics Program and were analysed in the form of Frequency Table and Crosstable.  The results of the research are as follows: The width of the age group that amateur football appeals is conspicuous (Table 1. % 68 of participants provide income from amateur football. It is observed that top amateur league players provide more income (Table 3 and Table 5.  It is emerged that % 66,2 of participants see football as a job (real job+exstra job; players who see football as their real job concentrated on especially in BAL League players; % 29,1 of participants see football as a hobby (Table 4.   It is observed that % 73,6 of participants train 3 days in a week

  11. CORRELATION BETWEEN ANXIETY AND AGRESSION WITH SPECIFIC BASKETBALL PRECISION

    Directory of Open Access Journals (Sweden)

    Fadil Nika

    2011-08-01

    Full Text Available The research has been conducted on 89 entities – active basketball players aged from 15 to 18. The aim of the research is to establish the level of correlation between the conative pathological factors and specific basketball precision. According to the obtained data the conclusion is that there is significant interdependence of these two sides of anthropologic status with the treated basketball players.

  12. Prediction of Basketball Shooting Ability on the Basis of Anthropometric Characteristics, Wrist Range of Motion, and Strength of Upper Extremity in Elite Female Basketball Players

    Directory of Open Access Journals (Sweden)

    Nahid Adibpour

    2016-03-01

    Full Text Available Objective: This study aims to predict basketball shooting ability on the basis of anthropometric characteristics, wrist range of motion, and strength of upper extremity in elite female basketball players. Methods: The sample of the study included 34 female basketball players invited to attend the national team trainings. 15 subjects were playing in center and 19 subjects in guard and forward positions. Measuring tapes and standard method (ISAK were used to measure the length of segments of dominant or shooting upper extremity. Digital dynamometer and goniometer were used to measure muscular strength and the wrist range of motion, respectively. Shooting ability of players was assessed by standard tests of free throw, three pointer and elbow shot. The research data was statistically analyzed using linear regression analysis. Results: Results showed that only forearm length variable is significantly effective on free throw shot. However, according to measures and regression coefficient, this effect was low. Conclusion: When choosing players for the guard and forward positions, coaches can necessarily ignore the stature and length of upper limb issue, and pay more attention to the other factors such as their shooting technique.

  13. Predicting performance and injury resilience from movement quality and fitness scores in a basketball team over 2 years.

    Science.gov (United States)

    McGill, Stuart M; Andersen, Jordan T; Horne, Arthur D

    2012-07-01

    The purpose of this study was to see if specific tests of fitness and movement quality could predict injury resilience and performance in a team of basketball players over 2 years (2 playing seasons). It was hypothesized that, in a basketball population, movement and fitness scores would predict performance scores and that movement and fitness scores would predict injury resilience. A basketball team from a major American university (N = 14) served as the test population in this longitudinal trial. Variables linked to fitness, movement ability, speed, strength, and agility were measured together with some National Basketball Association (NBA) combine tests. Dependent variables of performance indicators (such as games and minutes played, points scored, assists, rebounds, steal, and blocks) and injury reports were tracked for the subsequent 2 years. Results showed that better performance was linked with having a stiffer torso, more mobile hips, weaker left grip strength, and a longer standing long jump, to name a few. Of the 3 NBA combine tests administered here, only a faster lane agility time had significant links with performance. Some movement qualities and torso endurance were not linked. No patterns with injury emerged. These observations have implications for preseason testing and subsequent training programs in an attempt to reduce future injury and enhance playing performance.

  14. Position-Dependent Cardiovascular Response and Time-Motion Analysis During Training Drills and Friendly Matches in Elite Male Basketball Players.

    Science.gov (United States)

    Torres-Ronda, Lorena; Ric, Angel; Llabres-Torres, Ivan; de Las Heras, Bernat; Schelling I Del Alcazar, Xavi

    2016-01-01

    The purpose of this study was to measure differences in the cardiovascular workload (heart rate [HR]) and time-motion demands between positional groups, during numerous basketball training drills, and compare the results with in-game competition demands. A convenience sample of 14 top-level professional basketball players from the same club (Spanish First Division, ACB) participated in the study. A total of 146 basketball exercises per player (performed over an 8-week period in 32 team training sessions throughout the competitive season) and 7 friendly matches (FM) played during the preparatory phase were analyzed. The results reveal that HRavg and HRpeak were the highest in FM (158 ± 10; 198 ± 9 b · min(-1), respectively). Time-motion analysis showed 1v1 to be the most demanding drill (53 ± 8 and 46 ± 12 movements per minute for full and half court, respectively). During FM, players performed 33 ± 7 movements per minute. Positional differences exist for both HR and time-motion demands, ranging from moderate to very large for all basketball drills compared with FM. Constraints such as number of players, court size, work-to-rest ratios, and coach intervention are key factors influencing cardiovascular responses and time-motion demands during basketball training sessions. These results demonstrate that systematic monitoring of the physical demands and physiological responses during training and competition can inform and potentially improve coaching strategy, basketball-specific training drills, and ultimately, match performance.

  15. Finger and Palm Dynamic Pressure Monitoring for Basketball Shooting

    Directory of Open Access Journals (Sweden)

    Chiao-Fang Hung

    2017-01-01

    Full Text Available This study verified general inferences on the finger and palm pressure distribution of a basketball player in the moment before that player shoots a basketball through a scientific qualitative testing method. We mounted the sensor on the hands of college basketball players and monitored the dynamic pressure of each player’s hand while the player threw a basketball. The dynamic pressure distribution of the fingers and palm of a basketball player throwing a ball can be verified. According to the experimental results, college basketball players typically use the index finger to control the direction and power of force in the moment before shooting a basketball. This study successfully used a scientific qualitative test method to monitor the dynamic pressure of the fingers and palms of basketball players and verified the general inference that a typical basketball player mainly uses the index finger to control the direction and power of force in the moment before throwing a ball. In the future, this study, measuring the dynamic pressure distribution of the fingers and palm, can be applied to simulate hand manipulation in many biomedical and robotic applications.

  16. The Role of Amateur Astronomers in Exoplanet Research

    Science.gov (United States)

    Conti, Denns M.

    2016-05-01

    Because of recent technological advances in imaging equipment and processing software, research grade characterization of exoplanet transits is now within the realm of amateur astronomers. This paper will describe the current state of exoplanet observing by amateur astronomers and the best practices used for conducting such observations. In addition, a pipeline will be described that has proved successful in obtaining high quality, exoplanet science data from these observations. The paper will also describe a major collaboration currently underway between a world-wide network of amateur astronomers and a Hubble Space Telescope (HST) science team. Finally, the growing need for exoplanet observations by amateur astronomers will be discussed, as well as an example of their role in characterizing other "exo-objects."

  17. Improved effectiveness of performance monitoring in amateur instrumental musicians.

    Science.gov (United States)

    Jentzsch, Ines; Mkrtchian, Anahit; Kansal, Nayantara

    2014-01-01

    Here we report a cross-sectional study investigating the influence of instrumental music practice on the ability to monitor for and respond to processing conflicts and performance errors. Behavioural and electrophysiological indicators of response monitoring in amateur musicians with various skill levels were collected using simple conflict tasks. The results show that instrumental musicians are better able than non-musicians to detect conflicts and errors as indicated by systematic increases in the amplitude of the error-related negativity and the N200 with increasing levels of instrumental practice. Also, high levels of musical training were associated with more efficient and less reactive responses after experience of conflicts and errors as indicated by reduced post-error interference and post-conflict processing adjustments. Together, the present findings suggest that playing a musical instrument might improve the ability to monitor our behavior and adjust our responses effectively when needed. As these processes are amongst the first to be affected by cognitive aging, our evidence could promote musical activity as a realistic intervention to slow or even prevent age-related decline in frontal cortex mediated executive functioning. © 2013 Published by Elsevier Ltd.

  18. Injuries to Professional and Amateur Kickboxing Contestants

    Science.gov (United States)

    Lystad, Reidar P.

    2015-01-01

    Background: Kickboxing is a group of full-contact combat sports that allows both kicking and punching from a standing position. Despite its popularity, there is a scarcity of published data elucidating the injury epidemiology in kickboxing. Purpose: To determine the injury incidence, describe the injury pattern, and identify potential risk factors for injury in kickboxing. Study Design: Descriptive epidemiology study. Methods: Data describing fight outcomes and injuries sustained during professional and amateur kickboxing contests over a 15-year period were obtained from the official records of the Nevada Athletic Commission, United States. Injury incidence rates and rate ratios were calculated with 95% confidence intervals (95% CIs) per 1000 athlete-exposures (AEs) and per 1000 minutes of exposure. The injury pattern was described using frequencies and proportions of injuries by anatomic region and type of injury. In addition, Poisson mixed-effects generalized linear modeling was used to examine the multivariate relationships between injury incidence rates and potential risk factors. Results: The sample consisted of 481 unique fighters competing across 57 events, 976 AEs, 9562 minutes of exposure, and 380 injuries. The mean ± SD age of the fighters was 29.0 ± 5.3 years (range, 15-48 years). The overall injury incidence rates were 390.1 injuries (95% CI, 351.9-431.4) per 1000 AEs and 39.7 injuries (95% CI, 35.8-43.9) per 1000 minutes of exposure. The most commonly injured anatomic regions were the head (57.8%) and lower extremity (26.1%), while the most common types of injury were laceration (70.6%) and fracture (20.6%). Professional fighters were 2.5 times more likely to get injured compared with amateurs (rate ratio, 2.51; 95% CI, 1.39-4.55), while defeated fighters were 3.5 times more likely to get injured compared with winners (rate ratio, 3.48; 95% CI, 2.73-4.44). Conclusion: Injuries are frequent and often significant in kickboxing, and better injury

  19. Amateur Cleanrooms: Costs May Not Offset Benefits

    Science.gov (United States)

    Ramsey, W. Lawrence

    2005-01-01

    Contamination and Coatings Branch During my career at NASA, I have encountered a variety of cleanroom systems. With many projects, cost pressures and lack of adequate facilities have forced the managers to resort to amateur cleanrooms to manufacture spacecraft and instruments. These rooms are usually spaces that have been used for other purposes that are converted to cleanroom, usually without the assistance of a contamination control specialist. Often, scientists and engineers are successful in converting an area for experimental use. However, when the area is used for production, countless difficulties are encountered. This paper will document some of the disasters that I have personally witnessed and offer some guidelines for contamination professionals to follow if you are called upon to assist in the development of new cleanrooms. Cleanroom come in all shapes and sizes from special purpose mini-environments (such as flow benches) to large, expansive production facilities. These areas may require a variety of unit operations to be carried out within a short range of each other. The design of the cleanroom should account for compatibilities of these operations to protect the product and personnel. The level of cleanliness has traditionally been associated with the method of ventilation. However, just because and =ea has HEPA filters and greater that 20 air changes per hour does not mean that it is a cleanroom. Airflow is extremely complex; the only way to properly design a cleanroom is through the use of a computer based model. In the aerospace industry, few engineered cleanrooms are modeled. Modeling has been perceived as expensive; however, modern programs and fast computers are changing perception. It is the lack of appreciation for how air flow and location within a cleanroom affects the product that causes most of the problems I have experienced. Currently, the rules defining the best air flow design practices are based on simplistic historical data that

  20. Les images amateur sur Citizenside. Entre encadrement et uniformisation

    Directory of Open Access Journals (Sweden)

    Aurélie Aubert

    2014-04-01

    documents contraint les journalistes à ajuster leurs routines de travail et à faire évoluer le cadre strict de la définition de leurs fonctions. Does the emergence of amateur pictures in the media impact the dominant and privileged news forms? This article is a monograph on the French website, Citizenside, which sells to national and international media the work of photographers who do not hold a press card. This commercial enterprise plays a vital role in the structuring and validation of content presented as “amateur,” as well as supervising, legitimizing and uniformizing it. From a methodological standpoint, we undertook a quantitative study based on a typological classification of 221 events by users of the website, and semi-structured interviews of eight actors involved in photo circulation. First of all, this article examines the evolution of the conception of the news gathered by amateurs under specific conditions of production. It appears that the images reflect a reality programmed and circumscribed by place (France and Europe. We note, in fact, little variety in the events chronicled and a dominant Western point of view. We then broach, through a sociological perspective of trades and professional practice, the journalistic standards that play a role in the process of fact-selection and editing in the newsroom, and in so doing, analyze the diversification of journalistic activities. After observing the routes taken by documents on Citizenside, it appears the parameters of publication are still under the control of professionals. The latter rework images, add a frame and try to improve their chances of finding their rightful place in the news world. At the same time, the “non-professional” nature of these documents obliges journalists to adjust their work routines and try to change the strict framework within which their duties are defined. O advento da utilização das imagens amadoras pela mídia modifica as formas dominantes ou privilegiadas da not

  1. Individual recovery profiles in basketball players.

    Science.gov (United States)

    Moreno, Jordi; Ramos-Castro, Juan; Rodas, Gil; Tarragó, Joan R; Capdevila, Lluís

    2015-01-01

    In the sport context, recovery has been characterized as a multifactor process (physiological, psychological, behavioral, social, etc.). This study takes a multidisciplinary approach to find psychophysiological markers of the stress-recovery process. It aims to determine how athletes' specific recovery actions relate to their perceptions of recovery, and Heart Rate Variability (HRV). A total of 196 assessments were analyzed from 6 players on a men's professional basketball team within the Liga LEB Oro basketball federation (2012/2013 season). Perceptions of recovery, recovery strategies, and HRV were recorded. The results show a pattern of individual differences in behavior related to athletes' recovery actions and HRV profiles throughout the season (p < .05). Moreover, we observed that each player had different recovery needs. In light of these results, we suggest an individualistic approach to evaluating and monitoring recovery to attend more accurately to each player's recovery needs.

  2. Relationship between team assists and win-loss record in The National Basketball Association.

    Science.gov (United States)

    Melnick, M J

    2001-04-01

    Using research methodology for analysis of secondary data, statistical data for five National Basketball Association (NBA) seasons (1993-1994 to 1997-1998) were examined to test for a relationship between team assists (a behavioral measure of teamwork) and win-loss record. Rank-difference correlation indicated a significant relationship between the two variables, the coefficients ranging from .42 to .71. Team assist totals produced higher correlations with win-loss record than assist totals for the five players receiving the most playing time ("the starters"). A comparison of "assisted team points" and "unassisted team points" in relationship to win-loss record favored the former and strongly suggested that how a basketball team scores points is more important than the number of points it scores. These findings provide circumstantial support for the popular dictum in competitive team sports that "Teamwork Means Success-Work Together, Win Together."

  3. Field dependence-independence of basketball referees.

    Science.gov (United States)

    Tabernero, B; Márquez, S

    1999-06-01

    This study examined the field dependence-independence of basketball referees. A total of 205 subjects (nonathletes, athletes active in individual or team sports, and referees) completed the Group Embedded Figures Test. Analysis indicated no significant differences among referees due to age, group, or number of years officiating. Statistically significant lower scores were obtained by team-sport players and referees than by nonathletes. Mean scores of team-sport players and referees did not differ significantly.

  4. Applying Deep Learning to Basketball Trajectories

    OpenAIRE

    Shah, Rajiv; Romijnders, Rob

    2016-01-01

    One of the emerging trends for sports analytics is the growing use of player and ball tracking data. A parallel development is deep learning predictive approaches that use vast quantities of data with less reliance on feature engineering. This paper applies recurrent neural networks in the form of sequence modeling to predict whether a three-point shot is successful. The models are capable of learning the trajectory of a basketball without any knowledge of physics. For comparison, a baseline ...

  5. The Economics of Discrimination: Evidence from Basketball

    OpenAIRE

    Kahn, Lawrence M.

    2009-01-01

    This Chapter reviews evidence on discrimination in basketball, primarily examining studies on race but with some discussion of gender as well. I focus on discrimination in pay, hiring, and retention against black NBA players and coaches and pay disparities by gender among college coaches. There was much evidence for each of these forms of discrimination against black NBA players in the 1980s. However, there appears to be less evidence of racial compensation, hiring and retention discriminatio...

  6. The Commonality Between Approaches to Determine Jump Fatigue During Basketball Activity in Junior Players: In-Game Versus Across-Game Decrements.

    Science.gov (United States)

    Scanlan, Aaron T; Fox, Jordan L; Borges, Nattai R; Dalbo, Vincent J

    2017-02-01

    Declines in high-intensity activity during game play (in-game approach) and performance tests measured pre- and postgame (across-game approach) have been used to assess player fatigue in basketball. However, a direct comparison of these approaches is not available. Consequently, this study examined the commonality between in- and across-game jump fatigue during simulated basketball game play. Australian, state-level, junior male basketball players (n = 10; 16.6 ± 1.1 y, 182.4 ± 4.3 cm, 68.3 ± 10.2 kg) completed 4 × 10-min standardized quarters of simulated basketball game play. In-game jump height during game play was measured using video analysis, while across-game jump height was determined pre-, mid-, and postgame play using an in-ground force platform. Jump height was determined using the flight-time method, with jump decrement calculated for each approach across the first half, second half, and entire game. A greater jump decrement was apparent for the in-game approach than for the across-game approach in the first half (37.1% ± 11.6% vs 1.7% ± 6.2%; P = .005; d = 3.81, large), while nonsignificant, large differences were evident between approaches in the second half (d = 1.14) and entire game (d = 1.83). Nonsignificant associations were evident between in-game and across-game jump decrement, with shared variances of 3-26%. Large differences and a low commonality were observed between in- and across-game jump fatigue during basketball game play, suggesting that these approaches measure different constructs. Based on our findings, it is not recommended that basketball coaches use these approaches interchangeably to monitor player fatigue across the season.

  7. Incidence, severity, aetiology and type of neck injury in men's amateur rugby union: a prospective cohort study

    Directory of Open Access Journals (Sweden)

    Pollard Henry P

    2010-07-01

    Full Text Available Abstract Background There is a paucity of epidemiological data on neck injury in amateur rugby union populations. The objective of this study was to determine the incidence, severity, aetiology and type of neck injury in Australian men's amateur rugby union. Methods Data was collected from a cohort of 262 participants from two Australian amateur men's rugby union clubs via a prospective cohort study design. A modified version of the Rugby Union Injury Report Form for Games and Training was used by the clubs physiotherapist or chiropractor in data collection. Results The participants sustained 90 (eight recurrent neck injuries. Exposure time was calculated at 31143.8 hours of play (12863.8 hours of match time and 18280 hours of training. Incidence of neck injury was 2.9 injuries/1000 player-hours (95%CI: 2.3, 3.6. As a consequence 69.3% neck injuries were minor, 17% mild, 6.8% moderate and 6.8% severe. Neck compression was the most frequent aetiology and was weakly associated with severity. Cervical facet injury was the most frequent neck injury type. Conclusions This is the first prospective cohort study in an amateur men's rugby union population since the inception of professionalism that presents injury rate, severity, aetiology and injury type data for neck injury. Current epidemiological data should be sought when evaluating the risks associated with rugby union football.

  8. Amateur boxing: physical and physiological attributes.

    Science.gov (United States)

    Chaabène, Helmi; Tabben, Montassar; Mkaouer, Bessem; Franchini, Emerson; Negra, Yassine; Hammami, Mehrez; Amara, Samiha; Chaabène, Raja Bouguezzi; Hachana, Younés

    2015-03-01

    Boxing is one of the oldest combat sports. The aim of the current review is to critically analyze the amateur boxer's physical and physiological characteristics and to provide practical recommendations for training as well as new areas of scientific research. High-level male and female boxers show a propensity for low body fat levels. Although studies on boxer somatotypes are limited, the available information shows that elite-level male boxers are characterized by a higher proportion of mesomorphy with a well-developed muscle mass and a low body fat level. To help support the overall metabolic demands of a boxing match and to accelerate the recovery process between rounds, athletes of both sexes require a high level of cardiorespiratory fitness. International boxers show a high peak and mean anaerobic power output. Muscle strength in both the upper and lower limbs is paramount for a fighter's victory and is one of the keys to success in boxing. As boxing punches are brief actions and very dynamic, high-level boxing performance requires well-developed muscle power in both the upper and lower limbs. Albeit limited, the available studies reveal that isometric strength is linked to high-level boxing performance. Future investigations into the physical and physiological attributes of boxers are required to enrich the current data set and to help create a suitable training program.

  9. Performance outcomes of anterior cruciate ligament reconstruction in the National Basketball Association.

    Science.gov (United States)

    Busfield, Benjamin T; Kharrazi, F Daniel; Starkey, Chad; Lombardo, Stephen J; Seegmiller, Jeffrey

    2009-08-01

    The purpose of this study was to determine the rate of return to play and to quantify the effect on the basketball player's performance after surgical reconstruction of the anterior cruciate ligament (ACL). Surgical injuries involving the ACL were queried for a 10-year period (1993-1994 season through 2004-2005 season) from the database maintained by the National Basketball Association (NBA). Standard statistical categories and player efficiency rating (PER), a measure that accounts for positive and negative playing statistics, were calculated to determine the impact of the injury on player performance relative to a matched comparison group. Over the study period, 31 NBA players had 32 ACL reconstructions. Two patients were excluded because of multiple ACL injuries, one was excluded because he never participated in league play, and another was the result of nonathletic activity. Of the 27 players in the study group, 6 (22%) did not return to NBA competition. Of the 21 players (78%) who did return to play, 4 (15%) had an increase in the preinjury PER, 5 (19%) remained within 1 point of the preinjury PER, and the PER decreased by more than 1 point after return to play in 12 (44%). Although decreases occurred in most of the statistical categories for players returning from ACL surgery, the number of games played, field goal percentage, and number of turnovers per game were the only categories with a statistically significant decrease. Players in the comparison group had a statistically significant increase in the PER over their careers, whereas the study group had a marked, though not statistically significant, increase in the PER in the season after reconstruction. After ACL reconstruction in 27 basketball players, 22% did not return to a sanctioned NBA game. For those returning to play, performance decreased by more than 1 PER point in 44% of the patients, although the changes were not statistically significant relative to the comparison group. Level IV, therapeutic

  10. Profile of weekly training load in elite male professional basketball players.

    Science.gov (United States)

    Manzi, Vincenzo; D'Ottavio, Stefano; Impellizzeri, Franco M; Chaouachi, Anis; Chamari, Karim; Castagna, Carlo

    2010-05-01

    The aim of this study was to examine the training load (TL) profile of professional elite level basketball players during the crucial parts of the competitive season (pre-play-off finals). Subjects were 8 full-time professional basketball players (age 28 +/- 3.6 years, height 199 +/-7.2 cm, body mass 102 +/- 11.5 kg, and body fat 10.4 +/- 1.5%) whose heart rate (HR) was recorded during each training session and their individual response to TL monitored using the session-rate of perceived exertion (RPE) method (200 training sessions). The association between the session-RPE method and training HR was used to assess the population validity of the session-RPE method. Significant relationships were observed between individual session-RPE and all individual HR-based TL (r values from 0.69 to 0.85; p tapering phase during the competitive weeks irrespective of the number of games played during it (i.e., 1 or 2 games). The individual weekly players' TL resulted in being not significantly different from each other (p > 0.05). Elite male professional basketball imposes great physiological and psychological stress on players through training sessions and official competitions (1-2 per week). Consequently, the importance of a practical and valid method to assess individual TL is warranted. In this research, we demonstrated that session-RPE may be considered as a viable method to asses TL without the use of more sophisticated tools (i.e., HR monitors). The session-RPE method enabled the detection of periodization patterns in weekly planning in elite professional basketball during the crucial part of the competitive season (1 vs. 2 weekly fixtures model).

  11. DIFFERENCES IN MORPHOLOGICAL CHARACTERISTICS BETWEEN JUNIOR BASKETBALL PLAYERS WHO HAVE DIFFERENT LEVELS OF EXPLOSIVE STRENGTH

    Directory of Open Access Journals (Sweden)

    Nedim Sisic

    2014-06-01

    Full Text Available Introduction: The aim of this study was to determine differences in morphological characteristics between junior basketball players who have different levels of explosive strength. Methods: The study was conducted on a sample of 84 junior basketball players from (B&H Bosnia and Herzegovina (16-18 years in spring 2013th. The sample of morphological variables consited of: body height, leg length, body weight, upper arm girth in extension, calf girth, triceps skinfold, abdominal skinfold, front thigh skinfold, BMI, the relative body fat percentage. The variables of explosive strength were: vertical jump (VJ, broad jump (BJ and throwing a medicine ball from chest with 3 kg from a standing position. Ward's method of cluster analysis, based on variables of explosive strength we formed four homogeneous groups. Subsequently, using the ANOVA and post-hoc analysis, these groups are differentiated with regard to morphological characteristics. Results: Clusters differed significantly in BJ and VJ. ANOVA found significant differences between clusters in variables of skinfolds, such as the: triceps, abdomen and thigh. Discussion: Defined the influence of morphological variables on explosive strength can be regarded as expected, given that it is primarily about a negative influence of the amount of body fat on relative explosive strength type. This research has shown that junior basketball players in B&H are shorter and ligther when compared to top-level European juniors (Jelicic et al., 2002. Subjects with the lowest skinfolds of the upper limbs and body weight, achieved the best results in the manifestation of relative explosive strength, which has so far rarely been found in samples of trained subjects (Milanese et al., 2010. Possible explanations can be required in a number of training, the intensity and quality of training. Although at this point with certainty, we can't determine on which of these factors involved. This can be confirmed by the results of

  12. Peculiarities of psychical stability among basketball players of different performance level

    OpenAIRE

    Malinauskas R.; Brusokas A.

    2010-01-01

    This article deals with questions of psychical stability among basketball players of different performance level. The research was carried out in two Lithuanian basketball leagues: Lithuanian Basketball League (elite division) and the Lithuanian student's basketball league. It was established statistically significant (p

  13. Training Patterns of Wheelchair Basketball Players in Turkey

    Science.gov (United States)

    Tatar, Yasar

    2008-01-01

    The aim of this study was to analyze technical drills, warm-up and cool-down exercises used by wheelchair basketball players of the Turkish league in relation to training sessions. 33 male wheelchair basketball players participated in the study (mean age 26.6[plus or minus]5,95 years). All players reported that they used warm-up exercises before…

  14. Development of repeated sprint ability in talented youth basketball players.

    NARCIS (Netherlands)

    Wierike, S.C. te; Jong, M.C. de; Tromp, E.J.; Vuijk, P.J.; Lemmink, K.A.; Malina, R.M.; Elferink-Gemser, M.T.; Visscher, C.

    2013-01-01

    Factors affecting repeated sprint ability (RSA) were evaluated in a mixed-longitudinal sample of 48 elite basketball players 14 to 19 years of age (16.1±1.7 years). Players were observed on six occasions during the 2008-2009 and 2009-2010 seasons. Three basketball-specific field tests were administe

  15. Development of repeated sprint ability in talented youth basketball players.

    NARCIS (Netherlands)

    Koen A.P.M. Lemmink; S.C. te Wierike; E.J. Tromp; M.T. Elferink-Gemser; M.C. de Jong; R.M. Malina; P.J. Vuijk; C. Visscher

    2013-01-01

    Factors affecting repeated sprint ability (RSA) were evaluated in a mixed-longitudinal sample of 48 elite basketball players 14 to 19 years of age (16.1±1.7 years). Players were observed on six occasions during the 2008-2009 and 2009-2010 seasons. Three basketball-specific field tests were

  16. What Is the Half-Life of Basketball Teams?

    Science.gov (United States)

    Hrepic, Zdeslav

    2013-01-01

    What do basketball teams have in common with radioactive nuclei? It turns out, there is more here than first meets the eye. The National Collegiate Athletic Association (NCAA) basketball tournaments feeds fans' craving when NBA competitions are not in swing, and the college tournament time has been referred to as "March Madness" or…

  17. Labor Market Structure and Salary Determination among Professional Basketball Players.

    Science.gov (United States)

    Wallace, Michael

    1988-01-01

    The author investigates the labor market structure and determinants of salaries for professional basketball players. An expanded version of the resource perspective is used. A three-tiered model of labor market segmentation is revealed for professional basketball players, but other variables also are important in salary determination. (Author/CH)

  18. Development of repeated sprint ability in talented youth basketball players.

    NARCIS (Netherlands)

    Koen A.P.M. Lemmink; S.C. te Wierike; E.J. Tromp; M.T. Elferink-Gemser; M.C. de Jong; R.M. Malina; P.J. Vuijk; C. Visscher

    2013-01-01

    Factors affecting repeated sprint ability (RSA) were evaluated in a mixed-longitudinal sample of 48 elite basketball players 14 to 19 years of age (16.1±1.7 years). Players were observed on six occasions during the 2008-2009 and 2009-2010 seasons. Three basketball-specific field tests were administe

  19. What Is the Half-Life of Basketball Teams?

    Science.gov (United States)

    Hrepic, Zdeslav

    2013-01-01

    What do basketball teams have in common with radioactive nuclei? It turns out, there is more here than first meets the eye. The National Collegiate Athletic Association (NCAA) basketball tournaments feeds fans' craving when NBA competitions are not in swing, and the college tournament time has been referred to as "March Madness" or…

  20. Court Reconstruction for Camera Calibration in Broadcast Basketball Videos.

    Science.gov (United States)

    Wen, Pei-Chih; Cheng, Wei-Chih; Wang, Yu-Shuen; Chu, Hung-Kuo; Tang, Nick C; Liao, Hong-Yuan Mark

    2016-05-01

    We introduce a technique of calibrating camera motions in basketball videos. Our method particularly transforms player positions to standard basketball court coordinates and enables applications such as tactical analysis and semantic basketball video retrieval. To achieve a robust calibration, we reconstruct the panoramic basketball court from a video, followed by warping the panoramic court to a standard one. As opposed to previous approaches, which individually detect the court lines and corners of each video frame, our technique considers all video frames simultaneously to achieve calibration; hence, it is robust to illumination changes and player occlusions. To demonstrate the feasibility of our technique, we present a stroke-based system that allows users to retrieve basketball videos. Our system tracks player trajectories from broadcast basketball videos. It then rectifies the trajectories to a standard basketball court by using our camera calibration method. Consequently, users can apply stroke queries to indicate how the players move in gameplay during retrieval. The main advantage of this interface is an explicit query of basketball videos so that unwanted outcomes can be prevented. We show the results in Figs. 1, 7, 9, 10 and our accompanying video to exhibit the feasibility of our technique.

  1. Behavioral Momentum in Sports: A Partial Replication with Women's Basketball

    Science.gov (United States)

    Roane, Henry S.; Kelley, Michael E.; Trosclair, Nicole M.; Hauer, Lindsay S.

    2004-01-01

    Previous research has applied the behavioral momentum metaphor to men's college basketball. In the current investigation, the relative rate of reinforcement prior to and following adversities (e.g., turnovers, fouls) and periods of time-out were examined in a subset of women's college basketball games.

  2. Athletic performance and career longevity following anterior cruciate ligament reconstruction in the National Basketball Association.

    Science.gov (United States)

    Kester, Benjamin S; Behery, Omar A; Minhas, Shobhit V; Hsu, Wellington K

    2016-03-12

    To identify the impact of anterior cruciate ligament (ACL) reconstruction on performance and career longevity for National Basketball Association (NBA) players. Seventy-nine players (80 knees) with acute ACL tears in the NBA between the 1984-2014 seasons, and 112 age, height, weight, and performance-matched controls were identified. Pre- and post-injury performance outcomes including seasons played, games played, games started, minutes per game, points per game, field goals, 3-point shots, rebounds, assists, steals, blocks, turnovers, personal fouls, usage percentage and player efficiency ratings were compared between cases and controls using independent samples t tests and Fisher's exact tests. Sixty-eight of seventy-nine players (86.1 %) returned to play in the NBA following ACL reconstruction. Mean length of post-operative play was 1.84 years shorter than matched controls (P = 0.001). There was a significantly higher rate of attrition from professional basketball for players with a history of ACL reconstruction (P = 0.014). In the first full season following surgery, players started in 15.5 fewer games (P = 0.001), they played in 17.3 fewer games (P NBA following ACL reconstruction, although playing time, games played, player efficiency ratings and career lengths are significantly impacted in the post-operative period. These data should be used to manage patients' expectations regarding their abilities to return to elite levels of athletic performance.

  3. e-POP Radio Science Using Amateur Radio Transmissions

    Science.gov (United States)

    Frissell, N. A.; Perry, G. W.; Miller, E. S.; Shovkoplyas, A.; Moses, M. L.; James, H. G.; Yau, A. W.

    2015-12-01

    A major component of the enhanced Polar Outflow Probe (e-POP) Radio Receiver Instrument (RRI) mission is to utilize artificially generated radio emissions to study High Frequency (HF) radio wave propagation in the ionosphere. In the North American and European sectors, communications between amateur radio operators are a persistent and abundant source source of HF transmissions. We present the results of HF radio wave propagation experiments using amateur radio transmissions as an HF source for e-POP RRI. We detail how a distributed and autonomously operated amateur radio network can be leveraged to study HF radio wave propagation as well as the structuring and dynamics of the ionosphere over a large geographic region. In one case, the sudden disappearance of nearly two-dozen amateur radio HF sources located in the midwestern United States was used to detect a enhancement in foF2 in that same region. We compare our results to those from other more conventional radio instruments and models of the ionosphere to demonstrate the scientific merit of incorporating amateur radio networks for radio science at HF.

  4. Amateur filmmaking in the history of Brazilian cinema

    Directory of Open Access Journals (Sweden)

    Lila Silva Foster

    2016-07-01

    Full Text Available As in many national cinemas, the history of Brazilian amateur film is still in its early stages of investigation. In addition to this historiographical deficit, there are many ways in which amateur cinema is a small and less visible production: films shot in 16mm, 9.5mm and Super 8 are dispensable and Brazilian film archives and cinemateques only started cataloguing these materials in recent years. In the following paper we wish to establish a set of theoretic and historical guidelines to analyse amateur films that express different forms of amateur production. Through the collection of home movies from Alves de Lima family deposited at Cinemateca Brasileira (São Paulo, the amateur fictional films from Cinemateca Capitólio (Porto Alegre and Raymond Chauvin's  experimental films belonging to Hipólito José da Costa Communications Museum (Porto Alegre we want to give visibility to films that are not yet part of Brazilian cinema history.

  5. The development of a reliable amateur boxing performance analysis template.

    Science.gov (United States)

    Thomson, Edward; Lamb, Kevin; Nicholas, Ceri

    2013-01-01

    The aim of this study was to devise a valid performance analysis system for the assessment of the movement characteristics associated with competitive amateur boxing and assess its reliability using analysts of varying experience of the sport and performance analysis. Key performance indicators to characterise the demands of an amateur contest (offensive, defensive and feinting) were developed and notated using a computerised notational analysis system. Data were subjected to intra- and inter-observer reliability assessment using median sign tests and calculating the proportion of agreement within predetermined limits of error. For all performance indicators, intra-observer reliability revealed non-significant differences between observations (P > 0.05) and high agreement was established (80-100%) regardless of whether exact or the reference value of ±1 was applied. Inter-observer reliability was less impressive for both analysts (amateur boxer and experienced analyst), with the proportion of agreement ranging from 33-100%. Nonetheless, there was no systematic bias between observations for any indicator (P > 0.05), and the proportion of agreement within the reference range (±1) was 100%. A reliable performance analysis template has been developed for the assessment of amateur boxing performance and is available for use by researchers, coaches and athletes to classify and quantify the movement characteristics of amateur boxing.

  6. The new front in the war on doping: Amateur athletes.

    Science.gov (United States)

    Henning, April D; Dimeo, Paul

    2017-06-12

    The war on drugs is usually associated with criminal policies aimed at stemming consumption of drugs such as heroin, cocaine, and cannabis, less so with enhancement drugs like those used in sport. As drug use in sport, or doping, has become more visibly widespread, policies aimed at combating the issue have become more restrictive, intrusive, and harsh. In this article we draw new comparisons between the wider war on drugs and recent developments in sports anti-doping. We identify a growing trend towards criminalisation of traffickers and users, and associate that with another growing trend: the testing of amateur athletes. This article reviews the current anti-doping system, including the recent amateur policies, then considers of the results of one such program in amateur cycling. We then shift to consider the possible implications for amateurs of criminal doping laws and the recent debates about allowing medical exemptions for therapeutic use of banned substances. We show that drug use in sport can be understood as a new front in the war on drugs, with some extreme measures and many negative unintended consequences. To remedy this, we argue that amateur athletes require a separate anti-doping policy focused on minimising harms of use. Copyright © 2017 Elsevier B.V. All rights reserved.

  7. A Combinatorial Auction among Versatile Experts and Amateurs

    Science.gov (United States)

    Ito, Takayuki; Yokoo, Makoto; Matsubara, Shigeo

    Auctions have become an integral part of electronic commerce and a promising field for applying multi-agent technologies. Correctly judging the quality of auctioned goods is often difficult for amateurs, in particular, in Internet auctions. However, experts can correctly judge the quality of goods. In this situation, it is difficult to make experts tell the truth and attain an efficient allocation, since experts have a clear advantage over amateurs and they would not reveal their valuable information without some reward. In our previous work, we have succeeded in developing such auction protocols under the following two cases: (1) the case of a single-unit auction among experts and amateurs, and (2) the case of a combinatorial auction among single-skilled experts and amateurs. In this paper, we focus on versatile experts. Versatile experts have an interest in, and expert knowledge on the qualities of several goods. In the case of versatile experts, there would be several problems, e.g., free riding problems, if we simply extended the previous VCG-style auction protocol. Thus, in this paper, we employ PORF (price-oriented, rationing-free) protocol for designing our new protocol to realize a strategy-proof auction protocol for experts. In the protocol, the dominant strategy for experts is truth-telling. Also, for amateurs, truth-telling is the best response when two or more experts select the dominant strategy. Furthermore, the protocol is false-name-proof.

  8. 高校篮球运动中损伤原因及预防%Causes and prevention of injury in university Basketball

    Institute of Scientific and Technical Information of China (English)

    李诚浩

    2013-01-01

      篮球是具有广泛群众基础的体育项目,其极强的竞技性和娱乐性让很多人都乐于参与其中。不仅如此,随着篮球赛事的不断增多,这项球类运动也得到了越来越多人的关注。随着我国篮球事业的不断发展,我国也涌现出了很多的优秀篮球运动员,像姚明、易建联等,这些巨星也点燃了我国群众参与篮球运动的热情。然而,篮球运动是一项非常激烈的运动,这就使得很多人会在打篮球时出现身体上的损伤。本文首先对篮球运动中的损伤进行论述,其次,分析了篮球运动损伤的原因及损伤位置分析,最后分析了篮球运动损伤的预防措施。%  Basketball is a popular sport, its strong sports and entertainment characteristics to let a lot of people are willing to participate in. Not only that, along with the basketball games increasing, the ball games have been more and more people's attention. With the continuous development of China's basketball career, our country also emerges many outstanding basketball players, like Yao Ming, Yi Jian-lian and so on, these stars also ignite China's public passion to participate in basketball. However, basketball is a very intense exercise, it makes a lot of people injury while playing basketball. In this paper, the basketball sport injury is analyzed, and the injury location of basketball sports injury, finally analyzes the basketball sports injury prevention measures.

  9. Physical characteristics of elite adolescent female basketball players and their relationship to match performance

    Directory of Open Access Journals (Sweden)

    Fort-Vanmeerhaeghe Azahara

    2016-12-01

    Full Text Available There were two aims of this study: first, to investigate physical fitness and match performance differences between under-16 (U16 and under-18 (U18 female basketball players, and second, to evaluate the relationship between physical fitness and game-related performances. Twenty-three young, female, elite Spanish basketball players (16.2 1.2 years participated in the study. The sample was divided into two groups: U16 and U18 players. The average scores from pre- and post-season physical fitness measurements were used for subsequent analyses. Anthropometric variables were also measured. To evaluate game performance, game-related statistics, including the number of games and minutes played, points, rebounds, assists, steals and blocks per game, were recorded for every competitive match in one season. When anthropometric and physical performance variables were compared between groups, the U18 group demonstrated significantly (p<0.05 higher values in upper (+21.2% and lower (+27.11% limb strength compared to the U16 group. Furthermore, no significant differences between groups were observed in match performance outcomes. Only two performance variables, steals and assists per game, correlated significantly with jump capacity, speed, agility, anaerobic power, repeated sprint ability and aerobic power (p ≤ 0.005. These findings can help optimize training programs for young, elite female basketball players.

  10. DECISION-MAKING OF SPANISH FEMALE BASKETBALL TEAM PLAYERS WHILE THEY ARE COMPETING

    Directory of Open Access Journals (Sweden)

    Ana Concepci\\u00F3n Jim\\u00E9nez S\\u00E1nchez

    2009-01-01

    Full Text Available Decision-making play a very important role in basketball. While the game is taking place, players are constantly choosing what to do. In order to carry out this research work, two questions have been formulated: 1 how do high level female basketball players make a decision while they are competing? 2 which key components do they use to make the best decisions? The twelve players who make up the Spanish female basketball team have taken part in this project. They all participated in the 2008 FIBA World Olympic Qualifying Tournament, which took place in Madrid. This tournament allowed them to qualify and take part in the 2008 Olympic Games, where they finished in fifth place. A questionnaire and an interview have been used to make this research possible. The matches of the 2008 FIBA World Olympic Qualifying Tournament have also been analyzed. Those aspects in terms of the team's performance in 1x1 and 2x2 attack situations, and more specifically in pick actions, have been recorded and analyzed. In order to include these data, a system of specific categories and variables has been established. The results show that players are expert on making decisions during the competition. In order to come to this conclusion, their opinions, style of decision-making, as well as the way they move in 1x1 and 2x2 situations, were very useful. This research has also confirmed that decisions made by playmakers, forwards and centers are different.

  11. Strategies for defending a dribbler: categorisation of three defensive patterns in 1-on-1 basketball.

    Science.gov (United States)

    Fujii, Keisuke; Yamashita, Daichi; Yoshioka, Shinsuke; Isaka, Tadao; Kouzaki, Motoki

    2014-09-01

    To clarify the defending-dribbler mechanism, the interaction between the dribbler and defender should be investigated. The purposes of this study were to identify variables that explain the outcome (i.e. 'penetrating' and 'guarding') and to understand how defenders stop dribblers by categorising defensive patterns. Ten basketball players participated as 24 dribbler-defender pairs, who played a real-time, 1-on-1 sub-phase of the basketball. The trials were categorised into penetrating trials, where a dribbler invaded the defended area behind the defender, and guarding trials, where the defender stopped the dribbler's advance. Our results demonstrated that defenders in guarding trials initiated their movements earlier and moved quicker than the defenders in penetrating trials. Moreover, linear discriminant analysis revealed that the differences in initiation time and medio-lateral peak velocity between the defenders and dribblers were critical parameters for explaining the difference between penetrating and guarding trials. Lastly, guarding trials were further categorised into three process patterns during 1-on-1 basketball (i.e. 'early initiation' trials, 'quick movement' trials, and 'dribbler's stop' trials). The results suggest that there are three defending strategies and that one strategy would be insufficient to explain the defending-dribbler mechanism, because both players' anticipation and reactive movement must be considered.

  12. Drawing disability in Japanese manga: visual politics, embodied masculinity, and wheelchair basketball in Inoue Takehiko's REAL.

    Science.gov (United States)

    Wood, Andrea

    2013-12-01

    This work explores disability in the cultural context of contemporary Japanese comics. In contrast to Western comics, Japanese manga have permeated the social fabric of Japan to the extent that vast numbers of people read manga on a daily basis. It has, in fact, become such a popular medium for visual communication that the Japanese government and education systems utilize manga as a social acculturation and teaching tool. This multibillion dollar industry is incredibly diverse, and one particularly popular genre is sports manga. However, Inoue Takehiko's award-winning manga series REAL departs from more conventional sports manga, which typically focus on able-bodied characters with sometimes exaggerated superhuman physical abilities, by adopting a more realistic approach to the world of wheelchair basketball and the people who play it. At the same time REAL explores cultural attitudes toward disability in Japanese culture-where disability is at times rendered "invisible" either through accessibility problems or lingering associations of disability and shame. It is therefore extremely significant that manga, a visual medium, is rendering disability visible-the ultimate movement from margin to center. REAL devotes considerable attention to realistically illustrating the lived experiences of its characters both on and off the court. Consequently, the series not only educates readers about wheelchair basketball but also provides compelling insight into Japanese cultural notions about masculinity, family, responsibility, and identity. The basketball players-at first marginalized by their disability-join together in the unity of a sport typically characterized by its "abledness."

  13. Return to Sport and Performance After Microfracture in the Knees of National Basketball Association Players.

    Science.gov (United States)

    Harris, Joshua D; Walton, David M; Erickson, Brandon J; Verma, Nikhil N; Abrams, Geoffrey D; Bush-Joseph, Charles A; Bach, Bernard R; Cole, Brian J

    2013-11-01

    Use of microfracture in the knees of National Basketball Association (NBA) players is controversial. (1) There would be a high rate of return to sport (RTS) in NBA players following microfracture, (2) players would RTS the season following surgery, (3) preoperative player performance would not be significantly different on RTS, and (4) there would be no significant difference in RTS rate or postoperative performance in players undergoing microfracture in comparison with an age-, position-, NBA experience-, and performance-matched control group. Cohort study; Level of evidence, 3. NBA players undergoing microfracture were evaluated. Age-, body mass index-, position-, NBA experience-, and performance-matched controls were selected from the NBA during the same years as those undergoing microfracture. An index year was selected (controls) to match the number of seasons of NBA experience in microfracture cases. RTS and performance were analyzed and compared between cases and controls. Student t tests were performed for analysis of within- and between-group variables. A total of 41 NBA players underwent microfracture and were compared with 41 demographic- and performance-matched controls. Rate of RTS after microfracture was 73% in the NBA and 83% in professional basketball (NBA, D-league, and International Basketball Federation [FIBA]). Time to RTS in NBA was 9.20 ± 4.88 months. Seventy-one percent (29/41) of players RTS the season following microfracture. Length of NBA career following microfracture (4.10 ± 3.91 years) was not significantly different from controls. After microfracture, case athletes played fewer games per season and with fewer points and steals per game (relative to premicrofracture; P NBA players undergoing microfracture returned to professional basketball. Career length was not significantly different between players undergoing microfracture and controls. However, following microfracture, players competed in fewer games per season with fewer points

  14. A BALANCED TEAM WINS CHAMPIONSHIPS: 66 YEARS OF DATA FROM THE NATIONAL BASKETBALL ASSOCIATION AND THE NATIONAL FOOTBALL LEAGUE.

    Science.gov (United States)

    Otten, Mark P; Miller, Travis J

    2015-12-01

    Explicitly monitoring one's own actions has been noted as detrimental to the performance of fine motor skills under duress. Offensive skills rather than defensive skills are typically studied in this context. Defensive techniques typically require skills such as footwork and continuous movement, as opposed to more precise, hand-eye coordinated action. Explicit monitoring theory may be less relevant for defensive skills than offensive skills when playing under pressure. Archival data (66 years) for teams and for individual players was compiled from the National Basketball Association (NBA) and the National Football League (NFL). For basketball (n=778) and football (n=515) teams, regular season offensive and defensive statistics similarly predicted success in the postseason, which was assumed to create more pressure. For individual basketball players (n=5,132), nine indices of offensive (FG, free throw and three-point shooting, offensive win shares, points, and assists) and defensive (defensive win shares, steals, and blocks) production were compared; among these, three-point shooting percentage was least correlated from season to postseason, suggesting it is especially variable under pressure. A balanced basketball or football team that focuses on both offense and defense may be most successful.

  15. The Role of Amateur Astronomy to Outreach Astronomical Knowledge

    Science.gov (United States)

    Khachatryan, Vachik; Voskanyan, Tsovak

    2016-12-01

    It is known that in the educational system of republic the astronomy is not taught as a separate subject. Moreover, there are no telescopes in the vast majority of schools. "Goodricke John" NGO of amateur astronomers tries to fill this gap by organizing practical lessons of astronomy in secondary schools. NGO is equipped with high quality portable amateur telescopes and organizes periodic mass observations of planets, Moon, star clusters, nebulae in Yerevan and in regions. In addition, mass observations of rare astronomical phenomena are organized, such as the transit of Venus and Mercury across the disk of the Sun. Being the only NGO of amateur astronomers, it has a goal to contribute to publicizing astronomical knowledge and to ensure the availability of astronomical equipment, telescopes also to those segments of the society who have no opportunity to deal with them, in particular, persons with disabilities, prisoners, persons with disabilities, prisoners, soldiers, children from orphanages, school children and others.

  16. Forte Fortissimo for amateur musicians: no effect on otoacoustic emissions.

    Science.gov (United States)

    Møllerløkken, Ole J; Magerøy, Nils; Bråtveit, Magne; Lind, Ola; Moen, Bente E

    2013-03-01

    Many amateur musicians are likely to be exposed to high sound levels during rehearsals. Measuring otoacoustic emissions (OAE) is an objective technique to assess hearing ability and can be used as an early predictor of hearing loss. This study aimed to record sound levels at an amateur brass band rehearsal and to examine the cochlear function of the musicians by evaluating distortion product (DP) OAE amplitudes before and after sound exposure. Twenty-four brass band musicians and 10 office workers were examined with personal noise measurements and DPOAE tests before and after a music rehearsal or one office workday, respectively. The sound levels in the brass band ranged from 92 to 100 dBA, LaEQ 96 dBA. However, the amateur brass band members had no change in DPOAEs after this exposure compared to pre-exposure levels and compared to office workers.

  17. The National Basketball Association eye injury study.

    Science.gov (United States)

    Zagelbaum, B M; Starkey, C; Hersh, P S; Donnenfeld, E D; Perry, H D; Jeffers, J B

    1995-06-01

    To investigate the epidemiology of eye injuries sustained by professional basketball players in the National Basketball Association (NBA). A prospective study involving all NBA athletes who sustained eye injuries between February 1, 1992, and June 20, 1993, was conducted. Twenty-seven NBA team athletic trainers, physicians, and ophthalmologists were provided data forms to complete for any player examined for an eye injury. Practice and game exposures during the preseason, regular season, playoffs, and championships were included. Of the 1092 injuries sustained by NBA players during the 17-month period, 59 (5.4%) involved the eye and adnexa. Eighteen (30.5%) of the injuries occurred while the player was in the act of rebounding, and 16 (27.1%) while the player was on offense. The most common diagnoses included 30 abrasions or lacerations to the eyelid (50.9%), 17 contusions (edema and/or ecchymosis) to the eyelid or periorbital region (28.8%), and seven corneal abrasions (11.9%). There were three orbital fractures (5.1%). Most injuries were caused by fingers (35.6%) or elbows (28.8%). Nine players (15.3%) missed subsequent games because of their injury. Fifty-seven players (96.6%) were not wearing protective eyewear at the time of injury. The incidence of eye injuries in NBA players during the 17-month period was 1.44 per 1000 game exposures. Frequent physical contact in professional basketball players leaves them at great risk for sustaining eye injuries. To prevent these injuries, protective eyewear is recommended.

  18. Essence and specificity of realization rekreatsionnoimproving technologies in amateur choreographic collectives

    OpenAIRE

    Chuksin, A.

    2010-01-01

    In article the basic stages rekreatsionno-improving technologies in amateur choreographic collectives are considered, classification of kinds and organizational forms by their introduction in activity amateur choreographic collectives is given

  19. Scientific Discovery through Citizen Science via Popular Amateur Astrophotography

    Science.gov (United States)

    Nemiroff, Robert J.; Bonnell, Jerry T.; Allen, Alice

    2015-01-01

    Can popular astrophotography stimulate real astronomical discovery? Perhaps surprisingly, in some cases, the answer is yes. Several examples are given using the Astronomy Picture of the Day (APOD) site as an example venue. One reason is angular -- popular wide and deep images sometimes complement professional images which typically span a more narrow field. Another reason is temporal -- an amateur is at the right place and time to take a unique and illuminating image. Additionally, popular venues can be informational -- alerting professionals to cutting-edge amateur astrophotography about which they might not have known previously. Methods of further encouraging this unusual brand of citizen science are considered.

  20. Planificación nutricional para un nadador amateur

    OpenAIRE

    Álvarez Estévez, Antonio

    2014-01-01

    El objetivo de este trabajo es brindar una planificación sobre la correcta nutrición que debe de realizar un deportista amateur durante la temporada. Para llevar a cabo este trabajo, escogimos a un alumno de 3º de Grado de Ciencias de la Actividad Física y el Deporte de la Universidad de Huelva que compite en natación a nivel amateur como sujeto para la realización de la planificación. Para la correcta elaboración de este proyecto es preciso hacer primero un planteamiento sobre las cara...

  1. Physiological Profile of Senior and Junior England International Amateur Boxers

    OpenAIRE

    Smith, Marcus S

    2006-01-01

    Despite worldwide popularity of amateur boxing, research focussed on the physiological demands of the sport is limited. The physiological profile of Senior and Junior England international amateur boxers is presented. A gradual (8 to 21-days) and rapid (0 to 7-days) phase of body weight reduction was evident with 2.2 ± 0.3 % of the 7.0 ± 0. 8 % weight loss occurring over the final 24-hours. An increase in body weight >4% was observed following a recovery period. High urine osmolality values (...

  2. Leisure Lifestyle and Dropout: Exploring the Experience of Amateur Athletes in Competitive Sport

    Directory of Open Access Journals (Sweden)

    Bradley MacCosham

    2015-12-01

    Full Text Available This study explores the relationship between amateur athletes’ leisure lifestyle and dropout. Athletes often neglect aspects of their life outside of sport, as training, practicing, and competing takes up most of their time. Having an unbalanced leisure lifestyle can have negative effects on well-being. To examine this issue, a multiple qualitative case study approach was utilized. Participants chosen for this study were ten ex-competitive amateur athletes from Canada, who competed at a high-performance level of sport (i.e., senior level, and dropped out prior to reaching their goal of reaching higher elite levels of play. Through semi-structured interviews, participants were asked about their background in sport, their experience coping with challenges and dropout, and their leisure lifestyle when playing competitively. Results indicate that athletes had a less than optimal leisure lifestyle prior to dropping out, casual leisure was used as a coping mechanism in this stage, and they perceived their sport positively when it was better balanced with other valued activities. Elite athletes participating in casual leisure activities are able to balance sport with other important aspects in their lives, potentially leading to a more positive perceptions of their involvement in sports, putting them less at risk of dropping out.

  3. The rules and the chance in Basketball: a historical approach

    Directory of Open Access Journals (Sweden)

    António Paulo Ferreira

    2009-01-01

    Full Text Available The present paper intends to link positive influence of the evolution in rules and the rising reduction casualty with the basketball game dynamics. Throughout a metaphoric perspective it assumes that casualty factors were somehow covered up since the game invention and they were somehow sleepy during the game evolution. This metaphoric point is justified with an historical analysis to Naismith’s goals, presuming the game was created and reinforced by the evolutionary trends of his rules across the time. It was concluded that casualty role in basketball performance was controlled by an evolutionary direction, where the value of merit, ability and expertise are seen as determinants of basketball dynamics.

  4. Personality of young basketball and feasibility of improving the sport.

    Directory of Open Access Journals (Sweden)

    Artemenko T.G.

    2011-08-01

    Full Text Available The study of personal psychological features of young basketball players that influence the formation of sports skills and gain value for selection in basketball at the stage of initial training. At this stage of preparation identified personal characteristics (type of thinking, level of intellectual development, trait anxiety, volitional qualities, properties, attention, aggression, which show significant correlation between the parameters of readiness at certain time intervals during the initial training and, accordingly, at the age of young basketball players from 10 to 12 years.

  5. Investigation into the Effects of Eight Weeks of Step Aerobic Dance Practice on Static Balance, Flexibility and Selected Basketball Skills in Young Basketball Players

    Science.gov (United States)

    Bavli, Özhan

    2016-01-01

    The aim of this study was to investigate the effects of eight weeks of step aerobic exercises on static balance, flexibility and selected basketball skills in young basketball players. A total of 20 basketball players (average age 16.1 ± 0.7 years and average sporting age 4.1 ± 0.7 years) voluntarily joined the study. Participants were randomly…

  6. Neurological assessment and its relationship to CSF biomarkers in amateur boxers.

    Directory of Open Access Journals (Sweden)

    Sanna Neselius

    Full Text Available BACKGROUND: Mild traumatic brain injury (TBI or concussion is common in many sports. Today, neuropsychological evaluation is recommended in the monitoring of a concussion and in return-to-play considerations. To investigate the sensitivity of neuropsychological assessment, we tested amateur boxers post bout and compared with controls. Further the relationship between neuropsychological test results and brain injury biomarkers in the cerebrospinal fluid (CSF were investigated. METHOD: Thirty amateur boxers on high elite level with a minimum of 45 bouts and 25 non-boxing matched controls were included. Memory tests (Rey Osterrieth Complex Figure, Listening Span, Digit Span, Controlled Word Association Test, and computerized testing of episodic memory, tests of processing speed and executive functions (Trail Making, Reaction Time, and Finger Tapping were performed and related to previously published CSF biomarker results for the axonal injury marker neurofilament light (NFL. RESULTS: The neurological assessment showed no significant differences between boxers and controls, although elevated CSF NFL, as a sign of axonal injury, was detected in about 80% of the boxers 1-6 days post bout. The investigation of the relationship between neuropsychological evaluation and CSF NFL concentrations revealed that boxers with persisting NFL concentration elevation after at least 14 days resting time post bout, had a significantly poorer performance on Trail Making A (p = 0.041 and Simple Reaction Time (p = 0.042 compared to other boxers. CONCLUSION: This is the first study showing traumatic axonal brain injury can be present without measureable cognitive impairment. The repetitive, subconcussive head trauma in amateur boxing causes axonal injury that can be detected with analysis of CSF NFL, but is not sufficient to produce impairment in memory tests, tests of processing speed, or executive functions. The association of prolonged CSF NFL increase in

  7. Obstacles Facing the Iranian Basketball Academy

    Directory of Open Access Journals (Sweden)

    Hamta Hadian

    2016-10-01

    Full Text Available This study, which is a strategic study with a mixed research approach aimed to identify obstacles facing the academies of Iranian Basketball Federation. The population comprises board of directors and committees responsible for Education and Talent Spotting Association, academy administrators, physical education instructors, qualified experts, professors, coaches, referees and heads of delegations who were asked via interviews and questionnaire (exploratory manner to state internal and external obstacles facing basketball academies in following 8 components in order of importance utilizing the Delphi method: management and planning, training, human resources, financial resources, talent spotting, scientific and research and information technology, venues and infrastructures. Items were identified in 34 external and 49 internal factors. For weighting and prioritizing of items, the questionnaire was completed by 27 subjects employing AHP method based on pairwise comparisons. SPSS software version18 was utilized for descriptive statistics while AHP method in Expert Choice software was utilized for inferential statistics. At the end, a total of 11 executive strategies were proposed for removing the obstacles.

  8. The problem of shot selection in basketball.

    Science.gov (United States)

    Skinner, Brian

    2012-01-01

    In basketball, every time the offense produces a shot opportunity the player with the ball must decide whether the shot is worth taking. In this article, I explore the question of when a team should shoot and when they should pass up the shot by considering a simple theoretical model of the shot selection process, in which the quality of shot opportunities generated by the offense is assumed to fall randomly within a uniform distribution. Within this model I derive an answer to the question "how likely must the shot be to go in before the player should take it?" and I show that this lower cutoff for shot quality f depends crucially on the number n of shot opportunities remaining (say, before the shot clock expires), with larger n demanding that only higher-quality shots should be taken. The function f(n) is also derived in the presence of a finite turnover rate and used to predict the shooting rate of an optimal-shooting team as a function of time. The theoretical prediction for the optimal shooting rate is compared to data from the National Basketball Association (NBA). The comparison highlights some limitations of the theoretical model, while also suggesting that NBA teams may be overly reluctant to shoot the ball early in the shot clock.

  9. The problem of shot selection in basketball.

    Directory of Open Access Journals (Sweden)

    Brian Skinner

    Full Text Available In basketball, every time the offense produces a shot opportunity the player with the ball must decide whether the shot is worth taking. In this article, I explore the question of when a team should shoot and when they should pass up the shot by considering a simple theoretical model of the shot selection process, in which the quality of shot opportunities generated by the offense is assumed to fall randomly within a uniform distribution. Within this model I derive an answer to the question "how likely must the shot be to go in before the player should take it?" and I show that this lower cutoff for shot quality f depends crucially on the number n of shot opportunities remaining (say, before the shot clock expires, with larger n demanding that only higher-quality shots should be taken. The function f(n is also derived in the presence of a finite turnover rate and used to predict the shooting rate of an optimal-shooting team as a function of time. The theoretical prediction for the optimal shooting rate is compared to data from the National Basketball Association (NBA. The comparison highlights some limitations of the theoretical model, while also suggesting that NBA teams may be overly reluctant to shoot the ball early in the shot clock.

  10. TAU INFLUENCE ON DECISION MAKING IN BASKETBALL

    Directory of Open Access Journals (Sweden)

    Vanda Correia

    2009-01-01

    Full Text Available Decision making in sport emerges from the players' interaction with the game context (Araújo, Davids, & Hristovski, 2006. Results from studies on the one-on-one in basketball identified interpersonal distance and relative velocity as relevant variables (i.e., control parameters. These results are reinterpreted in the perspective of the General Tau Theory (Lee, 1998, in which movement is regarded as guided by controlling tau motion-gaps (time to fulfil a gap and taucouplings. Further empirical evidence for this argument, came from a recent study in a team ball sport, where the tau variable was considered and verified as significantly related to decisional behaviour. Following this, it is assumed that the focus in candidate control parameters that detach the spatial component from the temporal one, presented in previous studies, may not be sufficient to explain the decisional behaviour in basketball. In this way, the variable tau is proposed as more informative given that enfolds inextricably spatial-temporal information.

  11. Automated analysis and annotation of basketball video

    Science.gov (United States)

    Saur, Drew D.; Tan, Yap-Peng; Kulkarni, Sanjeev R.; Ramadge, Peter J.

    1997-01-01

    Automated analysis and annotation of video sequences are important for digital video libraries, content-based video browsing and data mining projects. A successful video annotation system should provide users with useful video content summary in a reasonable processing time. Given the wide variety of video genres available today, automatically extracting meaningful video content for annotation still remains hard by using current available techniques. However, a wide range video has inherent structure such that some prior knowledge about the video content can be exploited to improve our understanding of the high-level video semantic content. In this paper, we develop tools and techniques for analyzing structured video by using the low-level information available directly from MPEG compressed video. Being able to work directly in the video compressed domain can greatly reduce the processing time and enhance storage efficiency. As a testbed, we have developed a basketball annotation system which combines the low-level information extracted from MPEG stream with the prior knowledge of basketball video structure to provide high level content analysis, annotation and browsing for events such as wide- angle and close-up views, fast breaks, steals, potential shots, number of possessions and possession times. We expect our approach can also be extended to structured video in other domains.

  12. Anthropometry and Performance in Wheelchair Basketball.

    Science.gov (United States)

    Granados, Cristina; Yanci, Javier; Badiola, Aduna; Iturricastillo, Aitor; Otero, Montse; Olasagasti, Jurgi; Bidaurrazaga-Letona, Iraia; Gil, Susana M

    2015-07-01

    This study investigated whether anthropometric characteristics, generic and specific sprinting, agility, strength, and endurance capacity could differentiate between First-Division and Third-Division wheelchair basketball (WB) players. A First-Division WB team (n = 8; age = 36.05 ± 8.25 years, sitting body height = 91.38 ± 4.24 cm, body mass = 79.80 ± 12.63 kg) and a Third-Division WB team (n = 11; age = 31.10 ± 6.37 years, sitting body height = 85.56 ± 6.48 cm, body mass = 71.18 ± 17.63 kg) participated in the study. Wheelchair sprint, agility, strength, and endurance tests were performed. The First-Division team was faster (8.7%) in 20 m without the ball, more agile (13-22%), stronger (18-33%), covered more distance (20%) in the endurance test, and presented higher values of rate of perceived exertion for the exercise load (48%) than the Third-Division team. Moreover, the individual 20-m sprint time values correlated inversely with the individual strength/power values (from r = -0.54 to -0.77, p ≤ 0.05, n = 19). Wheelchair basketball coaches should structure strength and conditioning training to improve sprint and agility and evaluate players accordingly, so that they can receive appropriate training stimuli to match the physiological demands of their competitive level.

  13. The cultivation of basketball players’ basketball consciousness%浅析篮球运动员篮球意识的培养

    Institute of Scientific and Technical Information of China (English)

    梅耀尹

    2015-01-01

    Basketball is a collective project, not only requires the athletes have good physical quality and technical level, and has good basketball consciousness, only in this way, can the incentive game, reasonable dominate their own strength, and formed the tacit understanding between associates, better play to the role of the collective, to make the good physical quality and tactics to get sufficient play.%篮球运动是一项集体项目,不但要求运动员具备良好的身体素质和技术水平,而且具有良好的篮球意识,只有这样,才能在激励的比赛中,合理的支配自己的体力,与同伴间形成默契,更好地发挥集体的作用,才能使良好的身体素质与技战术得到充分的发挥。

  14. Post-concussive syndrome in a female basketball player: a case study

    Directory of Open Access Journals (Sweden)

    Str

    2013-05-01

    Full Text Available Sarah L StrandDepartment of Health and Human Sciences, Loyola Marymount University, Los Angeles, CA, USAAbstract: The objective of this case study was to identify the signs and symptoms of concussion and post-concussive syndrome in a collegiate, female basketball player, as well as her progress to becoming symptom free. The patient, a previously healthy, 21-year-old with no previous head injuries, experienced a concussion and continued to participate in her sport. Even though the athlete knew the risks of playing while symptomatic, she did not report her symptoms, and continued playing until the season ended. This case highlights that even when patients know the risks, they may be willing to overlook them to continue playing and it emphasizes the importance of further education. In addition, it shows that even when following recommended guidelines, and with normal neurocognitive testing, symptoms may come back upon return to play.Keywords: concussion, basketball, mild traumatic brain injury, female athletes

  15. Characteristics of competitive activity of qualified basketball with hearing impairment compare to qualified healthy basketball player

    Directory of Open Access Journals (Sweden)

    Sobko I. N.

    2013-08-01

    Full Text Available Purpose - the comparison of competitive activity skilled basketball players with normal hearing and impaired hearing aid. The study involved female athletes Ukrainian National Team with hearing (n = 12 and healthy female athletes (n = 12. Technical protocols processed 20 games World Cup, Europe, Ukraine among deaf athletes. Processed records 20 games of the Ukrainian Championship. Found that healthy athletes for the game significantly longer perform and get into the basket fine and three point shots, fewer mistakes, but they are inferior in rebounds. Installed insignificant differences between the number of throws, entering the basket from the middle distance, interceptions in athletes with hearing impairment and healthy athletes. Recommended to increase the coherence of group and team interactions basketball with hearing during the game to use the special visual aids.

  16. Mental hoop diaries: Emotional memories of a college basketball game in rival fans

    Science.gov (United States)

    Botzung, Anne; Rubin, David C.; Miles, Amanda; Cabeza, Roberto; LaBar, Kevin S.

    2012-01-01

    The rivalry between the men’s basketball teams of Duke University and the University of North Carolina-Chapel Hill (UNC) is one of the most storied traditions in college sports. A subculture of students at each university form social bonds with fellow fans, develop expertise in college basketball rules, team statistics, and individual players, and self-identify as a member of a fan group. The present study capitalized on the high personal investment of these fans and the strong affective tenor of a Duke-UNC basketball game to examine the neural correlates of emotional memory retrieval for a complex sporting event. Male fans watched a competitive, archived game in a social setting. During a subsequent functional magnetic resonance imaging session, participants viewed video clips depicting individual plays of the game that ended with the ball being released towards the basket. For each play, participants recalled whether or not the shot went into the basket. Hemodynamic signal changes time-locked to correct memory decisions were analyzed as a function of emotional intensity and valence, according to the fan’s perspective. Results showed intensity-modulated retrieval activity in midline cortical structures, sensorimotor cortex, the striatum, and the medial temporal lobe, including the amygdala. Positively-valent memories specifically recruited processing in dorsal frontoparietal regions, and additional activity in the insula and medial temporal lobe for positively-valent shots recalled with high confidence. This novel paradigm reveals how brain regions implicated in emotion, memory retrieval, visuomotor imagery, and social cognition contribute to the recollection of specific plays in the mind of a sports fan. PMID:20147540

  17. Mental hoop diaries: emotional memories of a college basketball game in rival fans.

    Science.gov (United States)

    Botzung, Anne; Rubin, David C; Miles, Amanda; Cabeza, Roberto; Labar, Kevin S

    2010-02-10

    The rivalry between the men's basketball teams of Duke University and the University of North Carolina-Chapel Hill (UNC) is one of the most storied traditions in college sports. A subculture of students at each university form social bonds with fellow fans, develop expertise in college basketball rules, team statistics, and individual players, and self-identify as a member of a fan group. The present study capitalized on the high personal investment of these fans and the strong affective tenor of a Duke-UNC basketball game to examine the neural correlates of emotional memory retrieval for a complex sporting event. Male fans watched a competitive, archived game in a social setting. During a subsequent functional magnetic resonance imaging session, participants viewed video clips depicting individual plays of the game that ended with the ball being released toward the basket. For each play, participants recalled whether or not the shot went into the basket. Hemodynamic signal changes time locked to correct memory decisions were analyzed as a function of emotional intensity and valence, according to the fan's perspective. Results showed intensity-modulated retrieval activity in midline cortical structures, sensorimotor cortex, the striatum, and the medial temporal lobe, including the amygdala. Positively valent memories specifically recruited processing in dorsal frontoparietal regions, and additional activity in the insula and medial temporal lobe for positively valent shots recalled with high confidence. This novel paradigm reveals how brain regions implicated in emotion, memory retrieval, visuomotor imagery, and social cognition contribute to the recollection of specific plays in the mind of a sports fan.

  18. The Japanese Amateur Textual Production Scene: Activities and Participation

    Directory of Open Access Journals (Sweden)

    Alvaro David Hernández Hernández

    2016-12-01

    Full Text Available Animation, manga (Japanese comic books, and video games are some of the most popular media in Japan. The huge community of fans and amateur creators that concentrate twice a year at the massive event called Comic Market is one expression of this popularity. In this paper I focus on the Japanese culture of amateur manga, anime or other derivative texts, and present analysis of the way in which members relate to media texts and other members, in order to reveal two different orientations towards action within this culture: one that centers on individual activities, and the other on collective participation. To do this, I focus first on the Japanese amateur culture that is often called dōjin culture to find two basic perspectives. One regards this culture as forming communities or based on social interaction, and the other denies commonality in the relationships between members and stresses individual drive. Then, I focus on a similar distinction that shapes the main discourses concerning Japanese subculture and otaku, both categories within which dōjin culture can be categorized. Here I pay particular attention to two different orientations towards the value of media texts, which provide a reference for understanding the aforementioned opposition between commonality and individuality. In my conclusions, I suggest that this amateur culture can be regarded as an institution of textual appropriation, shaped by two orientations: activities and participation. 

  19. Applications of the Petite Amateur Navy Satellite (PANSAT)

    Science.gov (United States)

    1992-09-01

    want to do a rescue!" 82 LIST OF REFERENCES [I] Hutchinson, Charles L. and Kleinman, Joel P., editors, The ARRL Handbook for the Radio Amateur, The...the US Naval Postgraduate School’s PANSAT," Oct. 1988. [24] Davidoff, Martin, The Satellite Experimenter’s Handbook , The American Radio Relay League

  20. Older Amateur Keyboard Players Learning for Self-Fulfilment

    Science.gov (United States)

    Taylor, Angela

    2011-01-01

    This article investigates self-reported music learning experiences of 21 older amateur pianists and electronic keyboard players. Significant changes in their lives and the encouragement of friends were catalysts for returning to or taking up a keyboard instrument as an adult, although not all returners had positive memories of learning a keyboard…

  1. 77 FR 67269 - Voluntary Licensing of Amateur Rocket Operations; Withdrawal

    Science.gov (United States)

    2012-11-09

    ... it received. DATES: The direct final rule published on August 22, 2012, at 77 FR 50584 is withdrawn... withdraws Amendment No. 400-4 published at 77 FR 50584 on August 22, 2012. Issued in Washington, DC, on... Federal Aviation Administration 14 CFR Part 400 RIN 2120-AK16 Voluntary Licensing of Amateur...

  2. Older Amateur Keyboard Players Learning for Self-Fulfilment

    Science.gov (United States)

    Taylor, Angela

    2011-01-01

    This article investigates self-reported music learning experiences of 21 older amateur pianists and electronic keyboard players. Significant changes in their lives and the encouragement of friends were catalysts for returning to or taking up a keyboard instrument as an adult, although not all returners had positive memories of learning a keyboard…

  3. How Do Amateur Soccer Referees Destabilize a Match?

    Science.gov (United States)

    Fruchart, Eric; Carton, Annie

    2012-01-01

    The refereeing system in amateur football is not without weakness. Some referees could be deliberately led to destabilize a match in order to demonstrate their skills in regulating a situation of potential conflict. This has posed an ethical problem to soccer institutions. Our study proposes to focus on this phenomenon by questioning seventy four…

  4. Sprint, agility, strength and endurance capacity in wheelchair basketball players

    National Research Council Canada - National Science Library

    Yanci, J; Granados, C; Otero, M; Badiola, A; Olasagasti, J; Bidaurrazaga-Letona, I; Iturricastillo, A; Gil, Sm

    ...; and secondly, to analyse the physical characteristics measured by sprint, agility, strength and endurance field tests in wheelchair basketball (WB) players. 16 WB players (33.06 ± 7.36 years, 71.89...

  5. Who needs a referee? How incorrect basketball actions are automatically detected by basketball players' brain

    Science.gov (United States)

    Proverbio, Alice Mado; Crotti, Nicola; Manfredi, Mirella; Adorni, Roberta; Zani, Alberto

    2012-01-01

    While the existence of a mirror neuron system (MNS) representing and mirroring simple purposeful actions (such as reaching) is known, neural mechanisms underlying the representation of complex actions (such as ballet, fencing, etc.) that are learned by imitation and exercise are not well understood. In this study, correct and incorrect basketball actions were visually presented to professional basketball players and naïve viewers while their EEG was recorded. The participants had to respond to rare targets (unanimated scenes). No category or group differences were found at perceptual level, ruling out the possibility that correct actions might be more visually familiar. Large, anterior N400 responses of event-related brain potentials to incorrectly performed basketball actions were recorded in skilled brains only. The swLORETA inverse solution for incorrect–correct contrast showed that the automatic detection of action ineffectiveness/incorrectness involved the fronto/parietal MNS, the cerebellum, the extra-striate body area, and the superior temporal sulcus. PMID:23181191

  6. Who needs a referee? How incorrect basketball actions are automatically detected by basketball players' brain.

    Science.gov (United States)

    Proverbio, Alice Mado; Crotti, Nicola; Manfredi, Mirella; Adorni, Roberta; Zani, Alberto

    2012-01-01

    While the existence of a mirror neuron system (MNS) representing and mirroring simple purposeful actions (such as reaching) is known, neural mechanisms underlying the representation of complex actions (such as ballet, fencing, etc.) that are learned by imitation and exercise are not well understood. In this study, correct and incorrect basketball actions were visually presented to professional basketball players and naïve viewers while their EEG was recorded. The participants had to respond to rare targets (unanimated scenes). No category or group differences were found at perceptual level, ruling out the possibility that correct actions might be more visually familiar. Large, anterior N400 responses of event-related brain potentials to incorrectly performed basketball actions were recorded in skilled brains only. The swLORETA inverse solution for incorrect-correct contrast showed that the automatic detection of action ineffectiveness/incorrectness involved the fronto/parietal MNS, the cerebellum, the extra-striate body area, and the superior temporal sulcus.

  7. Indicators of technical actions and intensity according to players’ positions in official matches of the brazilian basketball league

    Directory of Open Access Journals (Sweden)

    J.F. Daniel

    2016-12-01

    The aim of this study was to analyze indicators of technical actions (ITA and intensity according to the players positions in six official matches of the Brazilian Basketball League. Ten elite basketball male players participated in this study (27.60±5.54years. The total frequency of matches’ indicators (∑MI - sum of all matches indicators of each athlete included in the stats and the efficiency ratio (ER from matches’ official stats were the ITA considered. To check the intensity, athletes played with HR transmitter. Were produced descriptive measures; and the magnitude of difference (Δ% between ∑MI and ER second player [Δ%=(1-(ER÷∑MI*100] was calculated. It was observed that when players were classified by Δ% they were automatically classified by their respective positions in 80% of cases. Players’ positions 4 and 5 work closer to the basket and perform the safest and most efficient team play; players’ position 1 plays facing to the basket, organizes the collective game, has the largest ball possession volume which can also enable a safer game. Players' position 5 had higher Δ% between ∑MI and ER, representing safer and efficient game; older players had lower intensity; and the basketball game was developed on average slightly above the lactate threshold HR.

  8. A prospective study of injuries in basketball: a total profile and comparison by gender and standard of competition.

    Science.gov (United States)

    McKay, G D; Goldie, P A; Payne, W R; Oakes, B W; Watson, L F

    2001-06-01

    The study aimed to determine prospectively a basketball injury profile, including severity of injury, and to compare the injury profile by gender and standard of competition. Trained observers viewed basketball games, noting the occurrence of injuries, and confirmed injuries by questioning all players on site after the game. Injured players completed a questionnaire and the progress of their injury was monitored by telephone interview. A total of 10,393 basketball participations were observed. An overall injury rate was documented of 18.3 per 1,000 participations (24.7 per 1,000 playing hours), and was comparable by gender and standard of competition. Serious injuries (missing one or more weeks of play) occurred at a rate of 2.89/1,000 participations; with the ankle joint the most common serious injury (1.25/1,000 participations), followed by the calf/anterior leg (0.48/1,000 participations) and knee joint (0.29/1,000 participations). The severity of the injury was significantly associated with the body region injured, with more serious injuries incurred to the lower limb than other body regions (p games played per week, amount of training undertaken, type of injury, or the mechanism of injury (p> .05).

  9. DISTANCE LEARNING AND ATTITUDES OF GREEK BASKETBALL COACHES

    Directory of Open Access Journals (Sweden)

    E. Tsamourtzis

    2009-01-01

    Full Text Available Aim of the present research was the determination of the attitudes of Greek Basketball coaches towards their distance learning with the use of ICT in comparison with the classical learning and the examination of the perspective of their distance learning with the use of ICT. Therefore a closed questionnaire was used which included 3 different parts. 60 basketball coaches from Northern Greece comprised the sample (N=60. An interactive software was created which included the teaching of an offensive basketball system. The methodology of distance learning was used for the creation of the offensive system. The software was copied to a CD-Rom and accompanied with the questionnaires it was given to 20 Basketball coaches of Northern Greece as a pilot program. After the corrections of the primary questionnaires, the distribution of the final questionnaire accompanied with the CD-Rom followed. Multiple reciprocations were used for the data analysis. According to the results the more relaxing, easier and faster distance learning was considered in relation to the conventional one, a the fewer difficulties would the Basketball coaches face by using the distance learning method and b the friendlier and more relaxing would the distance learning method be. Also according to data research: a the more attractive the reading of software was, b the fewer the difficulties during the reading of software and c the more relaxing, easier and faster distance learning was considered in relation to the conventional one, the stronger was the perspective of Basketball coaches to believe in distance learning. In conclusion the more relaxing, easier and faster distance learning was considered in relation to the conventional one, the more positive were the attitudes of Basketball coaches towards their distance learning, while a positive perspective of Basketball coaches towards their distance learning is being formed.

  10. How to run a successful and educational basketball camp

    OpenAIRE

    Brooke LeMar; Joe Deutsch

    2015-01-01

    Camps are a great introduction to the sport of basketball for children. Universities and colleges usually offer different types of camps, typically during the summer months. Depending on the skill and maturity level of the player, basketball camps can serve a variety of purposes. Some popular types of camps include offensive skills, shooting, team, and youth camps. Regardless of the camp that is chosen, children need to have goals set for themselves before, during, and after to enhance the be...

  11. Outcomes After Lumbar Disc Herniation in the National Basketball Association

    OpenAIRE

    Minhas, Shobhit V.; Kester, Benjamin S; Hsu, Wellington K.

    2016-01-01

    Background: Professional basketball players are at risk for lumbar disc herniation (LDH), yet the evidence guiding treatment after operative or nonoperative management of this condition in the National Basketball Association (NBA) is limited. Hypothesis: NBA players with LDH will have different performance outcomes based on treatment type. Study Design: Case-control study. Level of Evidence: Level 4. Methods: Athletes in the NBA with an LDH were identified through team injury reports, transac...

  12. Performance outcomes after repair of complete achilles tendon ruptures in national basketball association players.

    Science.gov (United States)

    Amin, Nirav H; Old, Andrew B; Tabb, Loni P; Garg, Rohit; Toossi, Nader; Cerynik, Douglas L

    2013-08-01

    A complete rupture of the Achilles tendon is a devastating injury. Variables affecting return to competition and performance changes for National Basketball Association (NBA) players are not readily evident. Players in the NBA who ruptured their Achilles tendons and who underwent surgical repair would have more experience in the league, and the performance of those who were able to return to competition would be decreased when compared with their performance before injury and with their control-matched peers. Cohort study; Level of evidence, 3. Data for 18 basketball players with Achilles tendon repair over a 23-year period (1988-2011) were obtained from injury reports, press releases, and player profiles. Variables included age, body mass index (BMI), player position, and number of years playing in the league. Individual season statistics were obtained, and the NBA player efficiency rating (PER) was calculated for 2 seasons before and after injury. Controls were matched by playing position, number of seasons played, and performance statistics. Univariate and multivariate analyses were performed to assess the effect of each factor. At the time of injury, the average age was 29.7 years, average BMI was 25.6, and average playing experience was 7.6 years. Seven players never returned to play an NBA game, whereas 11 players returned to play 1 season, with 8 of those players returning for ≥2 seasons. Players who returned missed an average of 55.9 games. The PER was reduced by 4.57 (P = .003) in the first season and by 4.38 (P = .010) in the second season. When compared with controls, players demonstrated a significant decline in the PER the first season (P = .038) and second season (P = .081) after their return. The NBA players who returned to play after repair of complete Achilles tendon ruptures showed a significant decrease in playing time and performance. Thirty-nine percent of players never returned to play.

  13. Physiological demands of basketball refereeing during international competition.

    Science.gov (United States)

    Leicht, Anthony S

    2008-06-01

    To date, the physiological effects of elite competition on basketball players have been reported while very little information exists concerning the effects of elite competition on referees. Therefore, the aim of this study was to examine the physiological demands of basketball refereeing during international competition. Seven elite basketball referees volunteered for this study during a pre-Olympic women's basketball tournament. During each of the eight tournament matches, heart rate (HR), relative exercise intensity as a percentage of age-predicted maximum HR (HR(max)), proportion of match time within the ACSM-defined exercise intensity categories were recorded for each referee during each quarter of and the entire match. Comparisons between quarters for each variable were conducted using one-way ANOVAs. There were no significant differences between quarters for any variable. Referees, using a two-referee per match format, worked at an average HR of 150bpm (range 110-181bpm) for each quarter of the match, equating to a relative intensity of >70% HR(max) for the majority ( approximately 76%) of each quarter. Basketball refereeing during international competition results in significant physiological exertion at relatively high exercise intensities for Australian referees. Further studies will assist in the development of appropriate training programs for elite basketball referees to maintain and/or maximise performance.

  14. Even Playing Field?

    Science.gov (United States)

    Ford, William J.

    2011-01-01

    The National Collegiate Athletic Association (NCAA) governs intercollegiate sports under the premise of amateurism. That premise is incompatible with the idea of paying players. But "amateur" in no way means "nonprofit." The NCAA signed a 14-year, $10.8 billion contract last year with CBS and Turner Sports to air March Madness, the men's Division…

  15. From Amateur Astronomer to Observatory Director: The Curious Case of R. T. A. Innes

    Science.gov (United States)

    Orchiston, Wayne

    Robert Innes was one of a select band of amateur astronomers who made the transition to professional ranks towards the end of the nineteenth century. Initially he had a passion for mathematical astronomy, but after settling in Sydney he developed a taste for observational astronomy, specialising in the search for new double stars. He quickly became known for his success in this field and for his publications on solar system perturbations, and with John Tebbutt's patronage managed to secure a clerical position at the Royal Observatory, Cape of Good Hope. Once there he continued to observe in his spare time and to publish, and, with strong support from Sir David Gill, was appointed founding Director of the Transvaal Observatory. By the time he died in 1933, Innes had received an honorary D.Sc. from Leiden University, and had established an international reputation as a positional astronomer. This paper provides an interesting case study of a well-known `amateur-turned-professional', and an example of the ways in which patronage played a key role in nineteenth and early twentieth century Australian and South African astronomy.

  16. MAJOR INJURIES MUSCULOSKELETALS IN YOUNG ATHLETES BASKETBALL

    Directory of Open Access Journals (Sweden)

    José Simão Rodrigues Filho

    2012-11-01

    Full Text Available The growth of participation of youth in sports is accompanied by an increase in the number of musculoskeletal injuries, especially in contact sports. Basketball gained prominence among contact sports not only for its plastic and beauty of their games, but because it is a sport that demands much of its practitioners, and in the case of young athletes, this requirement can endanger children and adolescents are not properly monitored for health professionals sports. In this study we can see that the ankle is the most affected, followed by knee and fingers and wrists. The mechanisms of injury most frequently reported were sprains, after the bruises and fractures. Highlight for disturbances dorsolumbar, pointed out by many authors. The prevention programs and pre-competition oriented properly treated as paramount by all the authors investigated, in order to reduce the number of injuries in young athletes.

  17. Impact of Regulation Change on Half-Court Offence in the Polish Basketball League

    Directory of Open Access Journals (Sweden)

    Gryko Karol

    2016-06-01

    Full Text Available Introduction. Each change in the rules of a sport affects the way it is performed. Therefore, changes in regulations require that new training models be developed. The aim of the study was to determine whether FIBA’s introduction of new regulations in the 2010/2011 season pertaining to the dimensions of certain parts of the playing area, which changed the conditions under which the game was played, impacted the offensive actions of the top three teams in the Polish Basketball League. Material and methods. The study analysed qualitative data describing the offences (n = 16,694 performed during 200 matches of the Polish Basketball League, that is the highest-level men’s professional basketball league in Poland, during two periods: the 2009/2010 season (110 matches; n = 9,343 offences, before the regulations were modified, and the 2010/2011 season (90 matches; n = 7,351 offences, after they were changed. The research involved the players of three teams who received the gold, silver, and bronze medals in the final standings of the Polish National Championship in the 2009/2010 season. Results. The study found a statistically significant (p < 0.001 decrease in the overall number of tactical offensive actions of 3.84% and a significant (p < 0.05 5% decrease in the mean number of points scored. A significant (p < 0.05 decrease in half-court offences, amounting to almost 2% was also observed. This offensive system was characterised by a minor shift toward individual offences with the back to the basket and pick-and-roll offences; these changes, however, did not cause an increase in the level of effectiveness. Conclusions. The direction of the changes observed have been determined, which consisted in a reduction in the overall number of offensive actions and a shift in the place where they were completed, from the three-point area in particular, to the two-point area.

  18. COACHING A MINI-BASKETBALL TEAM

    Directory of Open Access Journals (Sweden)

    Mar\\u00EDa Ca\\u00F1adas

    2009-01-01

    Full Text Available This study arises from the importance of analyzing the coaching process and knowing how to coach in the first stages of sports initiation. The purpose of this study was to analyze how a basketball coach establishes teaching the game phases in youth categories, through the relationship between the pedagogical variables that define each of the coaching tasks. A total of 452 tasks, organized in 80 training sessions that were planned by a coach of mini-basketball (10-11 yearolds from the 2004-2005 season were analyzed. After a descriptive analysis of the game phase variable, a non-parametric inferential analysis (chi-square and contingency coefficient was carried out to study the relationships between the variables of the study (game phase, game situation, type of content, and content.The results make clear that for the coach that was analyzed, there is a disproportionate amount of work done on phases of offense to the detriment of defensive work. The aspects of the attack that are developed most are those without opposition, 1-on-0 (RAS=9.7 and to a lesser degree 1-on-1 (RAS=-10.7, although the opposite happens in the case of defensive fundamentals, 1-on-0 (RAS=-5.4 and 1-on-1 (RAS=12.3. A higher proportion of tasks without opposition, 1- on-0, were planned to work on individual offense technique (RAS=15.7, such as shooting. The analysis of the coaching process provides much information when generating sport teaching principles. The results have an important practical application, and they facilitate the process of continuing education and reflection on coaches' actions.

  19. The PACA Project: When Amateur Astronomers Become Citizen Scientists

    Science.gov (United States)

    Yanamandra-Fisher, P. A.

    2014-12-01

    The Pro-Am Collaborative Astronomy (PACA) project evolved from the observational campaign of C/2012 S1 or C/ISON in 2013. Following the success of the professional-amateur astronomer collaboration in scientific research via social media, it is now implemented in other comet observing campaigns. While PACA identifies a consistent collaborative approach to pro-am collaborations, given the volume of data generated for each campaign, new ways of rapid data analysis, mining access and storage are needed. Several interesting results emerged from the synergistic inclusion of both social media and amateur astronomers: (1) the establishment of a network of astronomers and related professionals, that can be galvanized into action on short notice to support observing campaigns; (2) assist in various science investigations pertinent to the campaign; (3) provide an alert-sounding mechanism should the need arise; (4) immediate outreach and dissemination of results via our media/blogger members; (5) provide a forum for discussions between the imagers and modelers to help strategize the observing campaign for maximum benefit. In 2014, two new comet observing campaigns involving pro-am collaborations have been initiated: (1) C/2013 A1 (C/SidingSpring) and (2) 67P/Churyumov-Gerasimenko (CG), target for ESA/Rosetta mission. The evolving need for individual customized observing campaigns has been incorporated into the evolution of PACA portal that currently is focused on comets: from supporting observing campaigns of current comets, legacy data, historical comets; interconnected with social media and a set of shareable documents addressing observational strategies; consistent standards for data; data access, use, and storage, to align with the needs of professional observers. The integration of science, observations by professional and amateur astronomers, and various social media provides a dynamic and evolving collaborative partnership between professional and amateur astronomers

  20. ANTHROPOMETRIC AND PHYSIOLOGICAL CHARACTERISTICS ON INDIAN INTERUNIVERSITY BASKETBALL PLAYERS

    Directory of Open Access Journals (Sweden)

    Shyamal Koley

    2010-08-01

    Full Text Available The purpose of this study was two-fold, firstly, to evaluate the anthropometric profile of Indian interuniversity basketball players and, secondly, to search the correlation of body mass index, % body fat, hand grip strength (right dominant and Vo2max,with other anthropometric characteristics studied. Eleven anthropometriccharacteristics, four body composition parameters, two physical and two physiological variables were measured on randomly selected 60 inter-university Indian basketball players (35 males and 25 females aged 18–25 years from Guru Nanak Dev University, Amritsar, Punjab, India with adequate controls (n = 102, 52 males and 50 females. The results indicated that male basketball players were taller (6.63% and heavier (7.31% and female basketball players were slightly taller (0.31% and lighter (3.74% than their control counterparts. One way analysis of variance showed significant (p ≤ .004 - .000 between group differences in all the variables (excepthip circumference between basketball players and controls. In basketball players, significantly positive correlations were found with BMI and other 12 variables, with percent body fat and 7 variables, with right hand grip strength and 12 variables and with Vo2max and other 9 variables, and significantly negative correlationswere found with BMI and other 1 variable (% lean body mass, with percent body fat and other 6 variables, with right hand grip strength and other 2 variables and with Vo2max with other 3 variables. The findings of the present study might be useful in future investigation on player selection, talent identification in the game of basketball and its training program development.

  1. Parody: Affective Registers, Amateur Aesthetics and Intellectual Property

    Directory of Open Access Journals (Sweden)

    Esther Milne

    2013-02-01

    Full Text Available If contemporary media platforms transform and conflate the relations between professional and amateur creative workers, what might we say about the specificity of their vernacular? This article argues that parody is a key site for the articulation of amateur labour enabled by new patterns of networked production and consumption. Despite its utopian promise of free speech, however, the parodic form is tempered by economic and legal exigencies. Therefore, the essay particularly investigates legislative and policy frameworks that constrain parody discourse. Amendments in 2006 to the Australian Copyright Act 1968 (Cth, for example, introduced parody and satire defences allowing greater scope for social critique. Yet recent US legislation preventing online impersonation (such as mock twitter accounts raises crucial questions about the public domain.

  2. Journeying as Amateur and Professional – A Somatic Movement Approach

    Directory of Open Access Journals (Sweden)

    Martha Eddy

    2016-07-01

    Full Text Available This account is an interactive case study co-authored by a teacher and her student on the topic of moving from amateur to professional. It highlights the role of somatic education in equalizing the experience of amateurs and professionals as well as pointing to specific curricula, public performances, participatory events and volunteer work that are made uniquely available to students of programs related to Dynamic EmbodimentTM Somatic Movement Therapy (known as the Somatic Movement Therapy Training – SMTT from 1991-2005. Written in first-person narrative style (Powdermaker 1966, this inquiry supports the primary methodology of somatic education – the process of self-discovery “from within” (Hanna 1976 emphasizing the physical body with a focus on bodily proprioception and kinesthetic awareness – as well as the humanistic nature of the student-teacher relationship and the value of each in performance and education.

  3. Astrophysics is easy! an introduction for the amateur astronomer

    CERN Document Server

    Inglis, Mike

    2007-01-01

    With some justification, many amateur astronomers believe astrophysics is a very difficult subject, requiring at least degree-level mathematics to understand it properly. This isn’t necessarily the case. Mike Inglis' quantitative approach to the subject explains all aspects of astrophysics in simple terms and cuts through the incomprehensible mathematics with which this fascinating subject is all too often associated. Astrophysics is Easy! begins by looking at the H-R diagram and other basic tools of astrophysics, then ranges across the universe, from a first look at the interstellar medium and nebulae, through the birth, evolution and death of stars, to the physics of galaxies and clusters of galaxies. A unique feature of this book is the way that Dr. Inglis lists example objects for practical observation at every stage, so that practical astronomers can go and look at the object or objects under discussion – using only easily-available commercial amateur equipment.

  4. Il Cabinet d'amateur di Georges Perec

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    Valeria Cammarata

    2011-04-01

    Full Text Available In 1979 one year after the publication of La vie mode d’emploi, George Perec wrote Cabinet d’amateur. Histoire d’un tableau, in which he tells the story of a painting belonging to the genre of the cabinet d’amateur, also known as kunst- und wunderkammer. It is a collection of different paintings, usually belonging to a rich man or a notable, portrayed (once again in a single picture celebrating the magnificence of this more or less real collection. As for the pictorial genre, so the short novel is the celebration of the images collected by George Perec in his previous masterpiece, La vie mode d’emploi. This is why I assume this work to be referable to the genre of structural homology more than to that of ékphrasis, being the pictorial structure not only the thematic inspiration or motif of the novel but its own underlying structure

  5. Relationship between Functional Classification Levels and Anaerobic Performance of Wheelchair Basketball Athletes

    Science.gov (United States)

    Molik, Bartosz; Laskin, James J.; Kosmol, Andrzej; Skucas, Kestas; Bida, Urszula

    2010-01-01

    Wheelchair basketball athletes are classified using the International Wheelchair Basketball Federation (IWBF) functional classification system. The purpose of this study was to evaluate the relationship between upper extremity anaerobic performance (AnP) and all functional classification levels in wheelchair basketball. Ninety-seven male athletes…

  6. Effects of Sport Participation on the Basketball Skills and Physical Self of Adolescents with Conduct Disorders

    Science.gov (United States)

    Maiano, Christophe; Ninot, Gregory; Morin, Alexandre J. S.; Bilard, Jean

    2007-01-01

    The purpose of this study was to examine the long-term effects of sport participation on the basketball skills and physical self-concept of adolescents with conduct disorders (CD). Participants were 24 adolescent males with CD, divided equally into three groups: (a) interestablishment basketball (IEBB), (b) integrated scholastic basketball (ISBB),…

  7. 25届亚锦赛中、日、韩女篮得分区域的对比分析%Contrastive Analysis on China,Japan and South Korea in Women′s Basketball Scoring Area of the 25th Asian Championship

    Institute of Scientific and Technical Information of China (English)

    何艳强

    2016-01-01

    25届亚锦赛已落下帷幕,日本女篮在时隔很久的情况下,获得了亚锦赛冠军,韩国女篮和中国女篮分别获得亚军和季军。中韩日女篮仍然位居亚洲女篮的第一梯队,日韩和中国队三支球队得分形式各具特色。中日女篮进攻点都多在限制区,中距离分偏高,外线远投发挥欠佳;韩国女篮外线投篮发挥不稳定,但明显好于中日女篮;在罚球方面,中国女篮无论在罚球次数和得分方面,占有绝对的优势。%The 25 Asian Basketball Championship has ended,Japanese women's basketball after a long time,won the Asian Championship,South Korean and Chinese women's basketball team won the runner -up and second runner -up respectively.Women’s basketball of China,South Korea and Japan are still rank first in the Asian women's basketball team,and three teams scoring form their own characteristics.Chinese and Japanese women's basketball has more attack points in restricted zone,a high point in the distance,but poor outside shot to play;South Korea's women's basketball shooting play unstable,but significantly better than Chinese and Japanese women's basketball team;In the penalty area,Chinese women basketball team both in terms of number of free throws and scoring,has an absolute advantage.

  8. Play Matters

    DEFF Research Database (Denmark)

    Sicart (Vila), Miguel Angel

    , but not necessarily fun. Play can be dangerous, addictive, and destructive. Along the way, Sicart considers playfulness, the capacity to use play outside the context of play; toys, the materialization of play--instruments but also play pals; playgrounds, play spaces that enable all kinds of play; beauty......, the aesthetics of play through action; political play -- from Maradona's goal against England in the 1986 World Cup to the hactivist activities of Anonymous; the political, aesthetic, and moral activity of game design; and why play and computers get along so well....

  9. Concentration of Ca in blood of amateur runners using NAA

    Energy Technology Data Exchange (ETDEWEB)

    Kovacs, L.; Zamboni, C. B.; Metairon, S. [Instituto de Pesquisas Energeticas e Nucleares (IPEN / CNEN - SP) - Centro do Reator de Pesquisas Av. Professor Lineu Prestes, 2242 - 05508-000 Sao Paulo, SP (Brazil); Nunes, L. A. S.; Lourenco, T. F.; Macedo, D. V. [Universidade Estadual de Campinas - UNICAMP - Laboratorio de Bioquimica do Exercicio - LABEX Cidade Universitaria 13083-970 - Campinas, SP Brazil - Caixa-Postal: 6109 (Brazil)

    2013-05-06

    In this study the Ca levels were determined in amateur runners blood at LABEX (Laboratorio de Bioquimica do Exercicio - UNICAMP, Brazil), using Neutron Activation Analyses (NAA) technique. The range established at rest (162 - 410 mgL{sup -1}) when compared with control group (51 - 439 mgL{sup -1}) suggests that there is a dependency of these limits in the function of the adopted physical training.

  10. Abstract art grandmasters score like class D amateurs

    CERN Document Server

    Simkin, M V

    2011-01-01

    Hawley-Dolan and Winner had asked the art students to compare paintings by abstract artists with paintings made by a child or by an animal. In 67% of the cases, art students said that the painting by a renowned artist is better. I compare this with the winning probability of the chessplayers of different ratings. I conclude that the great artists score on the level of class D amateurs.

  11. Personality differences in high risk sports amateurs and instructors.

    Science.gov (United States)

    Watson, Alison E; Pulford, Briony D

    2004-08-01

    This study investigated the personality differences of 21 amateurs and 20 instructors who participated in the high risk sports of skydiving, hang-gliding, paragliding, scuba diving, microlighting, and rock climbing, versus those who did not. 38 men and 28 women (M age=32.6 yr., SD= 10.0) were assessed using the Eysenck Personality Questionnaire-Revised, the General Health Questionnaire, the Generalised Self-efficacy Scale, and a Type A/B personality measure. Instructors and Amateurs scored significantly higher on Extroversion and lower on Neuroticism than Nonparticipants; however, they differed from each other on the General Health Questionnaire and Type A/B personality scores. Amateurs scored significantly higher on Psychoticism and Self-efficacy than Instructors and Nonparticipants. In conclusion, these test scores suggest that people who are attracted to high risk sports tend to be at the extroverted and emotionally stable end of the scale, with a tendency to exhibit Type A characteristics; however, Instructors' scores on Psychoticism and Self-efficacy are more akin to those of Nonparticipants.

  12. Inclusion, Responsibility, and Fair Play Can Also Be Learned Outside the Classroom.

    Science.gov (United States)

    Gallegos, Ken

    1998-01-01

    Appalled at a half-dozen fifth-graders' exclusionary and unsportsmanlike behavior on a new basketball court, a resourceful principal intervened next recess to pick teams and set rules. Everyone was allowed to play. Arguing, teasing, and intimidation resulted in benching. Eventually, about 40 children of both sexes and all sizes were playing in two…

  13. Physiological profile of senior and junior England international amateur boxers.

    Science.gov (United States)

    Smith, Marcus S

    2006-01-01

    Despite worldwide popularity of amateur boxing, research focussed on the physiological demands of the sport is limited. The physiological profile of Senior and Junior England international amateur boxers is presented. A gradual (8 to 21-days) and rapid (0 to 7-days) phase of body weight reduction was evident with 2.2 ± 0.3 % of the 7.0 ± 0. 8 % weight loss occurring over the final 24-hours. An increase in body weight >4% was observed following a recovery period. High urine osmolality values (> 1000 mOsm·kg(-1)) were recorded during training and competition. High post-competition blood lactate values (>13.5 mmol·l(-1)) highlighted the need for a well-developed anaerobic capacity and the importance of not entering the ring in a glycogen depleted state. The aerobic challenge of competition was demonstrated by maximum heart rate values being recorded during 'Open' sparring. Mean body fat values of 9-10% were similar to those reported for other weight classified athletes. Normal resting values were reported for hematocrit (Senior 48 ± 2 % and Junior 45 ± 2 %), haemoglobin (Senior 14.7 ± 1.0 g·dl(-1) and Junior 14.5 ± 0.8 g·dl(-1)), bilirubin (Senior 15.3 ± 6.2 µmol·l-1(-1)) and ferritin (Senior 63.3 ± 45.7 ng·ml(-1)). No symptoms associated with asthma or exercise-induced asthma was evident. A well- developed aerobic capacity was reflected in the Senior VO2max value of 63.8 ± 4.8 ml·kg(-1)·min(-1). Senior lead hand straight punching force (head 1722 ± 700 N and body 1682 ± 636 N) was lower than the straight rear hand (head 2643 ± 1273 N and body 2646 ± 1083 N), lead hook (head 2412 ± 813 N and body 2414 ± 718 N) and rear hook (head 2588 ± 1040 N and body 2555 ± 926 N). It was concluded that amateur boxing performance is dependent on the interplay between anaerobic and aerobic energy systems. Current weight making methods may lead to impaired substrate availability, leading to reduced competitive performance and an increased risk to a boxers

  14. Playful Gaming.

    Science.gov (United States)

    Makedon, Alexander

    A philosophical analysis of play and games is undertaken in this paper. Playful gaming, which is shown to be a synthesis of play and games, is utilized as a category for undertaking the examination of play and games. The significance of playful gaming to education is demonstrated through analyses of Plato's, Dewey's, Sartre's, and Marcuse's…

  15. STS-37 Pilot Cameron uses SAREX to communicate amateur radio operators

    Science.gov (United States)

    1991-01-01

    STS-37 Pilot Kenneth D. Cameron, wearing Shuttle Amateur Radio Experiment (SAREX) headset (HDST), communicates with amateur radio operators and students while on aft flight deck aboard Atlantis, Orbiter Vehicle (OV) 104. SAREX provided radio transmissions between ground based amateur radio operators around the world and Cameron (call sign KB5AWP) and the other crewmembers, all of whom are licensed amateur radio operators. SAREX enabled students from all over the United States to have a chance to communicate with an astronaut in space. The cloud-covered surface of the Earth is visible above Cameron framed in the overhead window W8.

  16. George Gamow: Scientific Amateur and Polymath

    Science.gov (United States)

    Harper, Eamon

    George Gamow (1904-1968) was among the first of the many brilliant scientists who forsook Europe for the United States in the early 1930s. Although most were fleeing the fascist imperium of Hitler and Mussolini, Gamow was one of a few who managed to escape the burgeoning despotism of Stalin in the Soviet Union. His early application of quantum mechanics to the atomic nucleus and his subsequent insight into the role played by the physics of the atom and its nucleus in stars, galaxies, and the universe identifies him as a scientist of unusual genius. Gamow displayed a boisterous, infectious - almost Rutherfordian - interest in all aspects of pure science. His interests were broad and his industry prodigious. His scientific output covered areas as diverse as nuclear physics, astrophysics, cosmology, biological genetics, and the fascinating question of the relationship of the large-scale structure and development of the universe to the properties of elementary particles and fields. He also was an immensely imaginative and prolific author of popular expositions on scientific subjects. One who is as well-known for his authorship of the Mr. Tompkins series of science popularizations as for his contributions to the development of the physical consequences of the big-bang theory of the expanding universe and the prediction of the cosmic background radiation must be unique in the scientific pantheon.

  17. How to run a successful and educational basketball camp

    Directory of Open Access Journals (Sweden)

    Brooke LeMar

    2015-04-01

    Full Text Available Camps are a great introduction to the sport of basketball for children. Universities and colleges usually offer different types of camps, typically during the summer months. Depending on the skill and maturity level of the player, basketball camps can serve a variety of purposes. Some popular types of camps include offensive skills, shooting, team, and youth camps. Regardless of the camp that is chosen, children need to have goals set for themselves before, during, and after to enhance the benefits. Each camper should have the opportunity to grow and develop as a basketball player as well as an individual. Running a successful camp is not only rewarding for the coaches, but for the players and campers too, which ultimately leads to the campers choosing to come back every year.

  18. Some Aspects of the Physics of Shooting a Basketball

    Science.gov (United States)

    Fontanella, John J.

    2006-12-01

    The flight of a basketball is considered.1 Video analysis of the path and spin for several shots was carried out. It is shown that four forces are required to reproduce the trajectory: gravity, buoyancy, the drag force and the Magnus force. The relative contribution of each force is determined. The model is used to evaluate what it is that good shooters do. For a foul shot, the approach speed (speed when the basketball is just above the rim), launch speed, and launch angle were calculated. It is found that the minimum in the approach speed occurs at a launch angle closer to the experimental values for good shooters than does the minimum in the launch speed. This suggests the hoopothesis that a good shooter strives for the “softest” shot. 1. J. J. Fontanella, The Physics of Basketball, The Johns Hopkins University Press, Baltimore, 2006.

  19. Situation criticality and basketball officials' stress levels.

    Science.gov (United States)

    Ritchie, Jason; Basevitch, Itay; Rodenberg, Ryan; Tenenbaum, Gershon

    2017-11-01

    Officials are expected to perform impeccably despite the wide range of stressors they experience. A stressor that officials frequently report is situation criticality. Situation criticality is comprised of score differential (i.e., more pressure in close games) and time remaining in a game (i.e., more pressure as time expires), which affects athletes' stress levels. The present study explored the effect of situation criticality on officials' stress levels. High school basketball officials (n = 108) with an average of 18.1 (SD = 11.2) years of officiating experience were given a survey packet containing game situations that varied in criticality. For each game situation (n = 9) officials completed the overall stress and appraisal portions of the Stress Appraisal Measure (SAM). Results revealed that situation criticality has an effect on officials' perceived stress levels. Both threat and challenge appraisals were positively correlated with perceived stress. Overall, these findings indicate that officials' stress levels fluctuate within games depending on score differential and time of game. The findings encourage officials to recognise and manage their stress, possibly through their appraisals. Additionally, the findings can affect the training of officials in the management of stress, as well as prompt the consideration of potential rule changes that reflect the increased situational demands on officials in critical situations (e.g., expanded instant replay).

  20. Injury in the national basketball association: a 17-year overview.

    Science.gov (United States)

    Drakos, Mark C; Domb, Benjamin; Starkey, Chad; Callahan, Lisa; Allen, Answorth A

    2010-07-01

    Injury patterns in elite athletes over long periods continue to evolve. The goal of this study was to review of the injuries and medical conditions afflicting athletes competing in the National Basketball Association (NBA) over a 17-year period. Descriptive epidemiological study. Injuries and player demographic information were reported by each team's athletic trainer. Criteria for reportable injuries were those that resulted in (1) physician referral, (2) a practice or game being missed, or (3) emergency care. The demographics, frequency of injury, time lost, and game exposures were tabulated, and game-related injury rates and 95% confidence intervals were calculated. A total of 1094 players appeared in the database 3843 times (3.3 ± 2.6 seasons). Lateral ankle sprains were the most frequent orthopaedic injury (n, 1658; 13.2%), followed by patellofemoral inflammation (n, 1493; 11.9%), lumbar strains (n, 999; 7.9%), and hamstring strains (n, 413; 3.3%). The most games missed were related to patellofemoral inflammation (n, 10 370; 17.5%), lateral ankle sprains (n, 5223; 8.8%), knee sprains (n, 4369; 7.4%), and lumbar strains (n, 3933; 6.6%). No correlations were found between injury rate and player demographics, including age, height, weight, and NBA experience. Professional athletes in the NBA experience a high rate of game-related injuries. Patellofemoral inflammation is the most significant problem in terms of days lost in competition, whereas ankle sprains are the most common injury. True ligamentous injuries of the knee were surprisingly rare. Importantly, player demographics were not correlated with injury rates. Further investigation is necessary regarding the consequences and sport-specific treatment of various injuries in NBA players. Knowledge of these injury patterns can help to guide treatments and provide more accurate guidelines for an athlete to return to play.

  1. THE STRUCTURE OF MOTOR ABILITIES IN BASKETBALL PLAYERS

    Directory of Open Access Journals (Sweden)

    Jadranka Kocić

    2013-07-01

    Full Text Available The expansion of basketball game, just like up-to-date sports results represent the stimulus for further fundamental researches in the aim of improvement scientific and methodological basis of a training work and all other factors connected to the improvement of a training process and top sports creativity. The research was conducted with the aim to determine the specifics of motor abilities in basketball players of the junior rank of competition. All the examinees were male, 16 (+/-6 months years old, 132 in total, all of them were basketball players of the basketball club ”Student” from Nis. The batery of tests for the evaluation of motor abilities included tests for the evaluation of coordination, strength (explosive, repetitive and static, flexibility and stamina and it consisted of 13 motor tests in total. The gained results were processed by the program system for multivariant analysis of data, especially made by Popovic D. for personal computers. The gained results are shown in tables and they give insight into the structure of latent dimensions of basketball players. The motor structure of basketball players is explained by 72.3% of common variance. From the matrix of intercorrelations, four main components were gained. The fist defines tests of static strength, flexibility and repetitive strength; the second is saturated by the test for the evaluation of explosive strength, balance and two tests for the evaluation of repetitive strength. The third is the best explained by the test for the evaluation of balance, flexibility and coordination. The fourth main component is defined by explosive strength. Then, the rotation of components into the oblimin solution is conducted and some better structure of latent dimensions is gained that way. In basketball and other popular sports games in our country, scientific and expert methods and possibilities of scientific fundation of the trainig work are very slowly but surely accepted.The trend

  2. PREFERENCES AND LEVELS OF SATISFACTION IN TECHNICAL AND TACTICAL ACTIONS AND IN TYPE OF OFFENSE AND DEFENSE UTILIZED IN COMPETITION BY YOUTH BASKETBALL PLAYERS

    Directory of Open Access Journals (Sweden)

    Enrique Ortega

    2009-01-01

    Full Text Available The purposes of the present study are: a to assess which technical and tactical actions of the game youth basketball players like to do in competition at different learning stages, b to find out how much they like to play offense and defense, c to assess the type of offense and defense that they prefer to execute, and d to record the basic tactical team resources (BTTR that are most requested by the youth player at different learning stages. The sample was composed of 989 youth basketball players who participate in the Spanish Basketball Federation leagues (60.1% from mini-basketball and 39.9% from the under-14 category. The results indicate that in competition: a the action that players most like to execute is the shot, b players prefer to be on offense than defense, c the defensive game system that players most enjoy is man-on-man defense, d players prefer pre-established offensive systems as opposed to open systems, and e basic tactical team resources players most enjoy are give-and-go, clear-outs, and penetrate and dish. These data may serve as a reference when doing short-, medium-, and long-term planning. In any case, it is necessary for coaches to combine the preferences of the players with the actual needs of each learning stage.

  3. Fitness Field Tests' Correlation With Game Performance in U-19-Category Basketball Referees.

    Science.gov (United States)

    Nabli, Mohamed Ali; Abdelkrim, Nidhal Ben; Jabri, Imed; Batikh, Tahar; Castagna, Carlo; Chamari, Karim

    2016-11-01

    To examine the relation between game performance, physiological responses, and field-test results in Tunisian basketball referees. Computerized time-motion analysis, heart rate (HR), and blood lactate concentration [La(-)] were measured in 15 referees during 8 competitive games (under-19-y-old Tunisian league). Referees also performed a repeated-sprint test (RSA), Yo-Yo Intermittent Recovery Test level 1 (YYIRTL1), agility T-test, and 30-m sprint with 10-m lap time. Computerized video analysis determined the time spent in 5 locomotor activities (standing, walking, jogging, running, and sprint), then grouped in high-, moderate-, and low-intensity activities (HIAs, MIAs, and LIAs, respectively). YYIRTL1 performance correlated with (1) total distance covered during the 4th quarter (r = .52, P = .04) and (2) distance covered in LIA during all game periods (P basketball referees and (2) referees' RSA correlates with the amount of HIA performed during the 2nd half, which represents the ability to keep up with play.

  4. The Poisson model limits in NBA basketball: Complexity in team sports

    Science.gov (United States)

    Martín-González, Juan Manuel; de Saá Guerra, Yves; García-Manso, Juan Manuel; Arriaza, Enrique; Valverde-Estévez, Teresa

    2016-12-01

    Team sports are frequently studied by researchers. There is presumption that scoring in basketball is a random process and that can be described using the Poisson Model. Basketball is a collaboration-opposition sport, where the non-linear local interactions among players are reflected in the evolution of the score that ultimately determines the winner. In the NBA, the outcomes of close games are often decided in the last minute, where fouls play a main role. We examined 6130 NBA games in order to analyze the time intervals between baskets and scoring dynamics. Most numbers of baskets (n) over a time interval (ΔT) follow a Poisson distribution, but some (e.g., ΔT = 10 s, n > 3) behave as a Power Law. The Poisson distribution includes most baskets in any game, in most game situations, but in close games in the last minute, the numbers of events are distributed following a Power Law. The number of events can be adjusted by a mixture of two distributions. In close games, both teams try to maintain their advantage solely in order to reach the last minute: a completely different game. For this reason, we propose to use the Poisson model as a reference. The complex dynamics will emerge from the limits of this model.

  5. Positional Role Differences in the Aerobic and Anaerobic Power of Elite Basketball Players

    Directory of Open Access Journals (Sweden)

    Pojskić Haris

    2015-12-01

    Full Text Available The aim of the present study was to compare the aerobic and anaerobic power and capacity of elite male basketball players who played multiple positions. Fifty-five healthy players were divided into the following three different subsamples according to their positional role: guards (n = 22, forwards (n = 19 and centers (n = 14. The following three tests were applied to estimate their aerobic and anaerobic power and capacities: the countermovement jump (CMJ, a multistage shuttle run test and the Running-based Anaerobic Sprint Test (RAST. The obtained data were used to calculate the players’ aerobic and anaerobic power and capacities. To determine the possible differences between the subjects considering their different positions on the court, one-way analysis of variance (ANOVA with the Bonferroni post-hoc test for multiple comparisons was used. The results showed that there was a significant difference between the different groups of players in eleven out of sixteen measured variables. Guards and forwards exhibited greater aerobic and relative values of anaerobic power, allowing shorter recovery times and the ability to repeat high intensity, basketball-specific activities. Centers presented greater values of absolute anaerobic power and capacities, permitting greater force production during discrete tasks. Coaches can use these data to create more individualized strength and conditioning programs for different positional roles.

  6. WHY DO THEY ENGAGE IN SUCH HARD PROGRAMS? THE SEARCH FOR EXCELLENCE IN YOUTH BASKETBALL

    Directory of Open Access Journals (Sweden)

    Carlos E. Gonçalves

    2011-09-01

    Full Text Available Excellent performance in sport has a strong positive relationship with the accumulated hours of practice. The specialization years are seen as a decisive moment to lift the skill level, athletic readiness and commitment but the selection and orientation of talent has been strongly dependent of biological and motor variables. The purpose of this study is to describe the achievement and motivation variables that can explain the belonging to an elite competitive level of young basketball players. Eighty-two basketball players under 16 years fulfilled the WOFO Questionnaire (Spence and Helmreich, 1983, and an adapted version of the DPMQ (De Bruin, Rikers and Schmidt, 2007. Forty players (mean age 15. 8 ± 0.96 were engaged in high performance centres and forty-two (mean age 15.6 ± 1.01 played in national level clubs. A decision tree and a random forest analysis between elite and national level players were performed. The most discriminant variable was Will to Excel, with 85,2% true positives in elite or national level. Mastery and competitiveness did not enter the final model. The will to reach excellence in performance can be considered as a condition to engage in more specialized and demanding practice. The assessment of the path to expertise only through motor variables or through the accumulated hours of deliberate practice is limited and can lead to mistaken identification or orientation of young sport talents. The use of a more comprehensive model is needed

  7. External mechanical work versus oxidative energy consumption ratio during a basketball field test.

    Science.gov (United States)

    Crisafulli, A; Melis, F; Tocco, F; Laconi, P; Lai, C; Concu, A

    2002-12-01

    A field test consisting of 5 continuous runs at the maximum speed possible, playing the ball, starting from the centre line to the basket with a final shot, was studied in order to obtain an index of mechanical work efficiency in basketball players (micro-index=Jmec/Joxy) and evaluate the correlation between micro-index and velocity, acceleration, mechanical power and lactacid anaerobic capacity, respectively. Eight male basketball players were studied; Jmec was the external mechanical work output obtained by means of a video image analysis software which gave the potential and the kinetic translational energies of athletes running and jumping and their velocity, acceleration and mechanical power. By means of a telemetric device (Kosmed K4), for measuring O2 consumption ( VO2), we obtained oxidative work (Joxy). By using this device we also assessed the excess of CO2, which was considered an index of lactacid anaerobic capacity. Non-parametric Spearman statistics revealed a significant correlation between mu index and mean velocity (ppower (ppower and endurance velocity.

  8. Aesthetic Play

    DEFF Research Database (Denmark)

    Bang, Jytte Susanne

    2012-01-01

    to the children’s complex life-worlds. Further, this leads to an analysis of music-play activities as play with an art-form (music), which includes aesthetic dimensions and gives the music-play activities its character of being aesthetic play. Following Lev Vygotsky’s insight that art is a way of building life...

  9. Is Amateur Astronomers’ Astronomy Knowledge a Barrier to Successful Outreach?

    Science.gov (United States)

    Slater, Timothy F.; Slater, S. J.; Price, C. A.; CenterAstronomy, CAPER; Education Research, Physics

    2012-01-01

    Considerable effort in astronomy education research has focused on developing assessment tools in the form of multiple-choice conceptual diagnostics and content knowledge surveys. This has been critically important for establishing the initial knowledge state of students and measure impacts of innovative instructional interventions over a universe of topics. Unfortunately, few of the existing instruments were constructed upon a solid list of clearly articulated and widely agreed upon learning objectives that span an entire introductory survey course. Moving beyond the 10-year old Astronomy Diagnostics Test, scholars at the CAPER Center for Astronomy & Physics Education Research developed and validated criterion referenced assessment tool, which is tightly aligned to the consensus learning goals stated by the AAS Chair's Conference on ASTRO 101, the AAAS Project 2061 Benchmarks, and the NRC National Science Education Standards, called the Test Of Astronomy STandards (TOAST). This multiple-choice instrument has a high degree of reliability and validity and is being deployed in a number of formal and informal learning environments. A collaborative research endeavor between the CAPER Team and the American Association of Variable Star Observers measured the astronomy content knowledge amateur astronomers, relative to widely agreed upon learning targets. We uncovered that our sample of 300 amateurs have higher than expected scores on the TOAST, significantly higher than students leaving our top-tier ASTRO 101 survey courses. Given recent learning sciences research demonstrating the potential of highly specialized languages that exist within some communities and rapidly declining membership rolls of formal amateur organizations, these scores could be interpreted as a potential communication barrier existing for engaging novices who are potential future club members. These results suggest that organizations may need to strategically clarify the nature of educational

  10. Athletic performance outcomes following lumbar discectomy in professional basketball players.

    Science.gov (United States)

    Anakwenze, Okechukwu A; Namdari, Surena; Auerbach, Joshua D; Baldwin, Keith; Weidner, Zachary D; Lonner, Baron S; Huffman, G R; Sennett, Brian J

    2010-04-01

    Retrospective case-control study. To quantify the athletic performance profiles after lumbar discectomy (LD) in a cohort of National Basketball Association (NBA) players in comparison with a control group of matched NBA players who did not undergo LD during the same study period. LD provides symptomatic relief and improved functional outcomes in the majority of patients as assessed by validated measures such as Oswestry Disability Index, Visual Analog Scale, and Short Form-36 (SF-36). Among professional athletes, however, the goal of lumbar HNP treated by discectomy is not only to improve functional status but also, ultimately, to return the player to preinjury athletic performance levels. No study to date has compared the athletic performance profiles before and after discectomy in professional athletes. An analysis of NBA games summaries, weekly injury reports, player profiles, and press releases was performed to identify 24 NBA players who underwent LD for symptomatic lumbar HNP between 1991 and 2007. A 1:2 case: control study was performed using players without history of lumbar HNP who were matched for age, position, experience, and body mass index as control subjects (n = 48). Paired t tests were conducted on the following parameters: games played, minutes per game, points per 40 minutes, rebounds per 40 minutes, assists per 40 minutes, steals per 40 minutes, blocks per 40 minutes, and shooting percentage. For each athletic performance outcome, between-group comparisons evaluating preindex to postindex season performance were done (index season = season of surgery). In the LD group, 18 of 24 players (75%) returned to play again in the NBA, compared with 42 of 48 players (88%, P = 0.31) in the control group. One year after surgery, between-group comparisons revealed statistically significant increase in blocked shots per 40 minutes in the LD (0.18) versus control group (-0.33; P = 0.008) and a smaller decrease in rebounds per 40 minutes in the LD (-0

  11. Incidence, Epidemiology and Etiology of Injuries, in a Spanish Amateur Football Club

    Directory of Open Access Journals (Sweden)

    Eduardo Esteban-Zubero

    2015-11-01

    Full Text Available Background: Playing football, both at the amateur and professional level, associates an increased risk of injury. A documented report on injury location, type and incidence, in correlation with sports intensity, professionalism level and age, would be of support for implementing preventing measures and appropriate training programs, to reduce the incidence of football related injury. Objectives: This study aimed to assess the incidence, type and location of injuries during one season, in an amateur football club and design strategies and preventive measures. Patients and Methods: A population of 308 players were studied, aged between 5 and 29 years old (20 subjects over-19, 38 under-19, 38 under-16, 57 under-14, 57 under-12, 44 under-10 and 54 under-8 years old, respectively distributed over 20 teams. In total, 339 cases of injury occurred. Results: The population injured the most was the under-19 group and the most prevalent type of injuries was muscular (40.7% and ligament (16.5%. The most common location was the lower limbs (78.6% and, specifically, the thigh (39.8%. Physical load periods (September and February were highlighted as the months of highest incidence and the average number of visits per injury was 1.34. A statistically significant relationship between hours of training and injuries was noted. Conclusions: In the literature, there are similar publications, who studied these variables, separately. This work provides us with a certain amount of descriptive results, which may serve as a model for future research projects, performing interventions by coaches and medical services of football clubs, to reduce the injuries incidence, especially in the months of greatest physical load and, therefore, improve the performance. Football is a safe sport to practice, at any age, because injuries, regularly, are not serious and it is highly recommended, given the amount of health benefits obtained.

  12. Contribution of amateur observations to Saturn storm studies

    CERN Document Server

    Delcroix, Marc

    2010-01-01

    Since 2004, Saturn Electrostatic Discharges (SEDs), which are the radio signatures of lightning in Saturn's atmosphere, have been observed by the Cassini Radio and Plasma Wave Science instrument (RPWS). Despite their important time coverage, these observations lack the resolution and positioning given by imaging around visible wavelengths. Amateur observations from Earth have been increasing in quality and coverage since a few years, bringing information on positions, drift rates and shape evolutions of large visible white spots in Saturn's atmosphere. Combining these two complementary sources has brought better analysis of Saturn's storms evolutions.

  13. LiveDescribe: Can Amateur Describers Create High-Quality Audio Description?

    Science.gov (United States)

    Branje, Carmen J.; Fels, Deborah I.

    2012-01-01

    Introduction: The study presented here evaluated the usability of the audio description software LiveDescribe and explored the acceptance rates of audio description created by amateur describers who used LiveDescribe to facilitate the creation of their descriptions. Methods: Twelve amateur describers with little or no previous experience with…

  14. Differences in injury risk and characteristics between Dutch amateur and professional soccer players

    NARCIS (Netherlands)

    Beijsterveldt, A.M.C. van; Stubbe, J.H.; Schmikli, S.L.; Port, I.G.L. van de; Backx, F.J.G.

    2015-01-01

    Objectives: To compare the incidence and characteristics of injuries between Dutch amateur and professional male soccer players during one entire competition season. Design: A prospective two-cohort design. Methods: During the 2009-2010 season, 456 Dutch male amateur soccer players and 217 professio

  15. Differences in injury risk and characteristics between Dutch amateur and professional soccer players

    NARCIS (Netherlands)

    Anne-Marie van Beijsterveldt, A. M C; Stubbe, J. H.; Schmikli, S. L.; Van De Port, I. G L; Backx, F. J G|info:eu-repo/dai/nl/069615039

    2015-01-01

    Objectives To compare the incidence and characteristics of injuries between Dutch amateur and professional male soccer players during one entire competition season. Design A prospective two-cohort design. Methods During the 2009–2010 season, 456 Dutch male amateur soccer players and 217 professional

  16. Differences in injury risk and characteristics between Dutch amateur and professional soccer players

    NARCIS (Netherlands)

    Beijsterveldt, A.M.C. van; Stubbe, J.H.; Schmikli, S.L.; Port, I.G.L. van de; Backx, F.J.G.

    2015-01-01

    Objectives: To compare the incidence and characteristics of injuries between Dutch amateur and professional male soccer players during one entire competition season. Design: A prospective two-cohort design. Methods: During the 2009-2010 season, 456 Dutch male amateur soccer players and 217 professio

  17. Differences in injury risk and characteristics between Dutch amateur and professional soccer players

    NARCIS (Netherlands)

    Anne-Marie van Beijsterveldt, A. M C; Stubbe, J. H.; Schmikli, S. L.; Van De Port, I. G L; Backx, F. J G

    2015-01-01

    Objectives To compare the incidence and characteristics of injuries between Dutch amateur and professional male soccer players during one entire competition season. Design A prospective two-cohort design. Methods During the 2009–2010 season, 456 Dutch male amateur soccer players and 217 professional

  18. 47 CFR 0.483 - Applications for amateur or commercial radio operator licenses.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 1 2010-10-01 2010-10-01 false Applications for amateur or commercial radio..., and for Taking Examinations § 0.483 Applications for amateur or commercial radio operator licenses. (a...) Application filing procedures for commercial radio operator licenses are set forth in part 13 of this...

  19. LEADERSHIP POWER PERCEPTION OF AMATEUR AND PROFESSIONAL SOCCER COACHES ACCORDING TO THEIR MARITAL STATUS

    Directory of Open Access Journals (Sweden)

    E. Konter

    2011-11-01

    Full Text Available The purpose of this study was to analyse the leadership power perception of amateur and professional soccer coaches according to their marital status. Data were collected from 165 male soccer coaches (n=71 technical director-manager and A license, n=46 B license, n=48 amateur license. An adapted Turkish version of Power in Soccer Questionnaire-Self (PSQ-S for coaches and an information form were used for the data collection [21]. Cronbach reliability alphas of PSQ-S range between 0.65 and 0.84. Coaches’ data were analysed by Kruskal-Wallis and Mann-Whitney tests. Kruskal-Wallis analysis of PSQ-S revealed significant differences between leadership power perception of amateur and professional soccer coaches according to their marital status related to Referent Power (RP [χ[sup]2[/sup] (3 = 9.61, p0.05. The results indicated that married coaches have higher perception of RP than single coaches, irrespective of being an amateur or a professional. Comparison of professional and amateur coaches suggests that while single professional coaches have higher perception of EP than married professional coaches, the results are the reverse for amateur coaches; in other words, amateur married coaches have higher perception of EP than amateur single coaches. There is a lack of research to draw more certain conclusions. Future researchers should also take into consideration personality, psychological skills, sport experience, age, taking responsibility, attributions, expectations, emotions, perception of achievement, etc.

  20. Amateur Sources Breaking the News, Meta Sources Authorizing the News of Gaddafi's Death

    DEFF Research Database (Denmark)

    Mortensen, Mette; Kristensen, Nete Nørgaard

    2013-01-01

    of interplay between elite and non-elite sources as well as media professionals and amateur sources. On account of their proximity to unfolding events, amateur sources often break the news by means of raw and fragmented bits of visual and verbal information. Elite sources rarely possess the same exclusive...

  1. Multidimensional Self-Efficacy and Affect in Wheelchair Basketball Players

    Science.gov (United States)

    Martin, Jeffrey J.

    2008-01-01

    In the current study, variables grounded in social cognitive theory with athletes with disabilities were examined. Performance, training, resiliency, and thought control self-efficacy, and positive (PA) and negative (NA) affect were examined with wheelchair basketball athletes (N = 79). Consistent with social cognitive theory, weak to strong…

  2. Development of Repeated Sprint Ability in Talented Youth Basketball Players

    NARCIS (Netherlands)

    te Wierike, Sanne C. M.; de Jong, Mark C.; Tromp, Eveline J. Y.; Vuijk, Pieter J.; Lemmink, Koen A. P. M.; Malina, Robert M.; Elferink-Gemser, Marije T.; Visscher, Chris

    te Wierike, SCM, de Jong, MC, Tromp, EJY, Vuijk, PJ, Lemmink, KAPM, Malina, RM, Elferink-Gemser, MT, and Visscher, C. Development of repeated sprint ability in talented youth basketball players. J Strength Cond Res 28(4): 928-934, 2014-Factors affecting repeated sprint ability (RSA) were evaluated

  3. March Math Madness: The Mathematics of the NCAA Basketball Tournament

    Science.gov (United States)

    Colgan, Mark D.

    2006-01-01

    This article explores the mathematics involved in the NCAA basketball tournament including data analysis, basic probability, expected value, and the multiplication principle. A fun activity is presented that applies these concepts and involves students shooting Ping-Pong balls to discover a best strategy. (Contains 3 tables and 3 figures.)

  4. Aerobic power and anthropometric characteristics of elite basketball referees.

    Science.gov (United States)

    Leicht, A S

    2007-03-01

    The current study aimed to document the aerobic power and body composition of elite basketball referees. Prior to the 2000/2001 Men's National Basketball League season, 25 male elite referees completed the Multistage Shuttle run test followed by body composition (body fat%) determination via bioelectrical impedance (BI) (Adult and Athlete modes) and a restricted anthropometric profile. Significant correlations between BI and anthropometric measures were examined via Pearson product correlation coefficients. Referees demonstrated a mean (SD) aerobic power of 50.8 (3.2) mL . kg-1 . min(-1) and body fat% of 23.8% (8.4%). Body fat% was similar for BI (Adult) and several anthropometric equations. Significant correlations were obtained between BI (Adult) and body fat%, and BI (Adult) and sum of skinfolds. Similar correlations were obtained for BI (Athlete) mode despite a significantly lower body fat%. Regression equations for the prediction of body fat% and sum of skinfolds from BI (Adult) were determined. Elite basketball referees demonstrated significantly greater aerobic power and similar body composition to the general community. In the euhydrated state, BI (Adult) provided a valid measurement of body fat% in elite basketball referees.

  5. Comparative Analysis of Competitive Balanceo f Basketball League

    Directory of Open Access Journals (Sweden)

    Siniša Jungić

    2015-04-01

    Full Text Available Basketball is a sport that has a very long tradition in the territory of ex-Yugoslavia. The breakdown of the country led to a de- crease in quality of basketball in the newly created countries. The unsteadiness of quality of the teams in national leagues resulted in formation of the Regional Adriatic Basketball League (ABA in 2001. The main goal of this research was to measure the competitive balance in ABA, Spanish (ACB and National Basketball Association League (NBA. The competitive balance was calculated by using Ratio of Standard Deviation index (RSD and Herfindahl-Hirschman Index (HHI.The results of RSD showed that the most equable was ABA league, then came ACB league, while the most unequable was NBA league. The calculating of HHI index gave a different result. NBA is the most equable, then comes ABA league, and the last one is ACB league, which is the most unequable according to this parameter. ABA league has less quality than ACB and NBA league, but the results show that it is competitively the most balanced league. According to the RSD rates, NBA league is the most unequable. The main reason for that is a huge number of teams taking part in the league, which causes the unequable distribution of quality players. Ac- cording to HHI, NBA is the most equable. Reason for that are different mechanisms whose goal is to reach and maintain the competitive balance.

  6. Development of Repeated Sprint Ability in Talented Youth Basketball Players

    NARCIS (Netherlands)

    te Wierike, Sanne C. M.; de Jong, Mark C.; Tromp, Eveline J. Y.; Vuijk, Pieter J.; Lemmink, Koen A. P. M.; Malina, Robert M.; Elferink-Gemser, Marije T.; Visscher, Chris

    2014-01-01

    te Wierike, SCM, de Jong, MC, Tromp, EJY, Vuijk, PJ, Lemmink, KAPM, Malina, RM, Elferink-Gemser, MT, and Visscher, C. Development of repeated sprint ability in talented youth basketball players. J Strength Cond Res 28(4): 928-934, 2014-Factors affecting repeated sprint ability (RSA) were evaluated i

  7. Increasing mouthguards usage among junior rugby and basketball players.

    Science.gov (United States)

    Jalleh, G; Donovan, R J; Clarkson, J; March, K; Foster, M; Giles-Corti, B

    2001-06-01

    To evaluate a Western Australian mouthguard promotion campaign, launched at the start of the 1997/98 junior rugby union and junior basketball seasons, aimed at increasing mouthguard usage at competition and training. A quasi-experimental field design was used to assess the impact of the mouthguard campaign on behavioural change. Observational data were collected pre- and post-campaign on mouthguard usage by players present at a rugby and basketball competition event and at a training session. Junior Australian Rules Football players were used as a control group. Pre-post observational surveys showed a significantly greater increase in mouthguard usage in competition games among rugby union (77% to 84%) and basketball players (23% to 43%) compared with the control group (72% to 73%). All codes showed a post-campaign increase in mouthguard usage at training, but the intervention codes' increases were greater than the control's increase (rugby union: 29% to 40%; basketball: 11% to 36%; football: 34% to 40%). The campaign had a significant and substantial effect on behaviour and provides evidence of the benefits of leveraging a sponsorship to modify the behaviour of the target group. This campaign provides a model for promoting mouthguard usage in other sports among junior players.

  8. ANTROPOMETRIC CHARACTERISTICS AND MOTOR SKILLS OF YOUNG MONTENEGRO BASKETBALL PLAYERS

    Directory of Open Access Journals (Sweden)

    Milovan Ljubojević

    2012-09-01

    Full Text Available Testing and measurement in basketball is basically supposed to help in the initial evaluation and interpretation of features and capabilities of players that are important for their activity. The main objective of testing is the possibility of obtaining information about the three general indicators in basketball practice, namely: the level of current results in certain ability, the pace of results improvement in the ability and stability of the results in tests of ability. For this purpose, testing and measurement of young basketball players, members of the Montenegro under-18 team, was carried out. The aim of this paper is to present the basic features and capabilities of young basketball players of Montenegro and their comparison with some other teams. Variables from anthropometry space were measured: body height, arm span, reach height, body mass. Motor skills were observed by variables: the last squat, thrust from a flat bench, rear thrust, lying-sitting for 30 seconds, sargent test, long jump, 20 yard test, kamikaze, špagat, sitting bow. Based on the processed results it can be concluded that the motor skills of our young players, tested in this study, are at the level of the young players of other representations. The results will be of great help to coaches who work with these players.

  9. Development of Repeated Sprint Ability in Talented Youth Basketball Players

    NARCIS (Netherlands)

    te Wierike, Sanne C. M.; de Jong, Mark C.; Tromp, Eveline J. Y.; Vuijk, Pieter J.; Lemmink, Koen A. P. M.; Malina, Robert M.; Elferink-Gemser, Marije T.; Visscher, Chris

    2014-01-01

    te Wierike, SCM, de Jong, MC, Tromp, EJY, Vuijk, PJ, Lemmink, KAPM, Malina, RM, Elferink-Gemser, MT, and Visscher, C. Development of repeated sprint ability in talented youth basketball players. J Strength Cond Res 28(4): 928-934, 2014-Factors affecting repeated sprint ability (RSA) were evaluated i

  10. A Research into Evaluation of Basketball Athletes' Risk Perception Level

    Science.gov (United States)

    Karatas, Ozgur

    2016-01-01

    The aim of this study is to compare the risk perception levels of Basketball athletes in Turkish League teams according to some variables. In this research the "general screening model," which is one of the descriptive screening methods, was used. While the population of the study consists of athletes actively engaged in the Turkish…

  11. When English Language Arts, Basketball, and Poetry Collide

    Science.gov (United States)

    Baker, W. Douglas

    2007-01-01

    A former high school teacher's reflections on the connections between basketball and poetry suggest the significance of extracurricular activities for teachers and students. W. Douglas Baker recounts how he guided students to make connections among "the collision of activities in their lives" by delving into the practices and discourses of three…

  12. Management and marketing of private basketball clubs for children and juniors

    Directory of Open Access Journals (Sweden)

    Silvia GRĂDINARU

    2017-03-01

    Full Text Available Basketball is in the top of favourite sports. The appearance of private sport clubs on the sports market is caused by the increasingly precarious conditions in state institutions and, at the same time, by the influence of the European Community. We aim at identifying a pattern of activity meant to attract and educated children in the field of basketball through private basketball clubs by making parents aware of the beneficial effects of basketball and of being a member of a sports team. The survey was carried out in 12 private basketball clubs that carry out activities in a consequent manner (in number and in value. Private basketball club managers responded to the questions in our questionnaire showing willingness to cooperate; results show that all private basketball clubs are non-profit organisations and are involved in the competitions organised by the Romanian Federation of Basketball. Private basketball clubs represent half of the affiliated basketball clubs and dominate the competitions reserved to the different age categories, which denotes the efficiency of their activities.

  13. Football and doping: study of African amateur footballers.

    Science.gov (United States)

    Ama, P F M; Betnga, B; Ama Moor, V J; Kamga, J P

    2003-08-01

    To investigate use and awareness of lawful and unlawful substances by amateur footballers in Yaounde, Cameroon. A total of 1116 amateur footballers (1037 male and 79 female) out of 1500 contacted participated in this study. They were divided into three groups: elite players (n = 314); local players (n = 723); female players (n = 79). They answered a questionnaire of 30 items grouped under six main topics: identification of players; use of lawful substances subject to certain restrictions on the International Olympic Committee (IOC) list; use of IOC banned substances; doping behaviour; awareness of doping; food supplements. The results of the questionnaire were scrutinised using Microstat software, and the level of significance was pfootballers of a banned substance (cocaine) and substances subject to certain restrictions (alcoholic drinks, methylated spirits, and banga (marijuana)). (b) Doping behaviour: use by our footballers of substances with similar effects to some IOC banned substances but not listed as such: tobacco, liboga, wie-wie (narcotic), bilibili (locally made alcohol drink). (c) A large intake of vitamin C (food supplements) in all three groups. In contrast, the footballers' knowledge of doping was vague. Preventive actions and an epidemiological study of doping among footballers are urgently required.

  14. Safety profile of amateur kickboxing among military and civilian competitors.

    Science.gov (United States)

    Buse, George J; Wood, Robert M

    2006-05-01

    The purpose of this study was to identify match-ending injuries in amateur kickboxing (KB) among military and civilian competitors. A total of 148 competitors, of whom 5 were on active duty in the U.S. Air Force or Marine Corps, participated in amateur KB matches (N = 74) from 1999 to 2001. Match-ending injuries were observed and managed from ringside by one author (G.J.B.). Of all matches, 23 (31.1%) were stopped because of injury. Of the 23 matches, 15 (65.2%) ended because of traumatic brain injury, 4 (17.4%) because of orthopedic trauma, 3 (13.0%) because of thoracoabdominal trauma, and 1 (4.4%) because of ocular trauma. The incidence of traumatic brain injury was greater than that of all other match-ending injuries combined (p < 0.01). Because of the incidence and potentially serious sequelae of injuries associated with competitive KB, military commanders should exercise operational risk management in an attempt to safeguard personnel from unnecessary hazard.

  15. Amateur Radio Communication Technology Contingency Communication in Emergency Situation

    Directory of Open Access Journals (Sweden)

    Johar Azlee

    2017-01-01

    Full Text Available Disasters cannot be avoided, but efforts can be made to reduce death, injuries and property damages through better communications and better planning to deal with it before it happen. Thus we need to adopt available technology, like the Amateur Radio Communication Technology (ACT, to face this problem. These include providing awareness, training and support for the communities who adopt the technology for Emergency Communication (EC. Through having more qualified Amateur Radio Communities (ARC in the adoption of the ARCT, we would be able to improve the communication before, during and after the disasters struck. There are many challenges and issues in the adoption of the ARCT that would part of this study. This article also describes several case studies of communication failure during Hurricane Katrina (2005 in the USA, as well as disasters in several other countries and Malaysia. The tragedies led to failure of existing communication infrastructure, and were reprieved by the help of the voluntary ARC to support the relief agencies in the evacuation and assistance the disaster victims. Therefore, this article will highlight the significant issues that influence the adoption of ARCT in EC.

  16. Amateur and professional football player to investigate of nutritional habits

    Directory of Open Access Journals (Sweden)

    Ozcan Saygın

    2009-08-01

    Full Text Available This study was carried out in order to investigate the nutritional habits level of footballers, considering the different league categories. From Turkey Super League, 2. League category A, 2.League category B, 3.League, 1.Amateur League, 2.Amateur League teams 360 active football players participated in the survey. To determine their the survey form developed by the researcher, benefiting previous scientific studies, consisting of 13 personal information questions, 20 nutritional habits questions; in all 33 questions was applied during the resting time of the athletes after giving explanation by the pollster.In statistical calculations SPSS (version 14.0 was applied. Data frequency and the percent values were calculated and chi-square test was applied to find out the differences among the teams in different categories. When P value was lower than 0.05, differences among the groups were accepted as significant.When the questions were asked about their educational background, levels of income, experts preparing their nutrition programs, the relations between nutrition and achievment, CHO loading, meal-skip, smoking and drinking alcohol, fluid intake before the match, the food consumed before the match, taking supplements regularly, the food containing carbohydrate, last meal preferences before the match; among the groups there were siginificant differences at level of p

  17. The activity profile of elite male amateur boxing.

    Science.gov (United States)

    Davis, Philip; Benson, Peter R; Pitty, James D; Connorton, Andrew J; Waldock, Robert

    2015-01-01

    An activity profile of competitive 3 × 3-min elite-level amateur boxing was created from video footage of 29 Olympic final and semifinal bouts in 39 male boxers (mean ± SD) age 25.1 ± 3.6 y, height 178.3 ± 10.4 cm, and body mass 69.7 ± 16.5 kg. Boxing at this level requires the ability to maintain an activity rate of ~1.4 actions/s, consisting of ~20 punches, ~2.5 defensive movements, and ~47 vertical hip movements, all per minute, over 3 subsequent rounds lasting ~200 s each. Winners had higher total punches landed (P = .041) and a lower ratio of punches thrown to landed (P = .027) than losers in round 3. The hook rear-hand landed was also higher for winners than losers in round 2 (P = .038) and round 3 (P = .016), and defensive movements were used less by winners (P = .036). However, the results suggest that technical discrimination between winners and losers is difficult; bout outcome may be more dependent on which punch is "lucky" enough to be scored by the judges or who appears to be dominant on the day. This study gives both boxers and coaches a good idea of where subelite boxers need to aim if they want to become among the best amateur boxers in the world.

  18. The energetics of semicontact 3 x 2-min amateur boxing.

    Science.gov (United States)

    Davis, Philip; Leithäuser, Renate M; Beneke, Ralph

    2014-03-01

    The energy expenditure of amateur boxing is unknown. Total metabolic cost (Wtot) as an aggregate of aerobic (Waer), anaerobic lactic (W[lactate]), and anaerobic alactic (WPCr) energy of a 3 × 2-min semicontact amateur boxing bout was analyzed. Ten boxers (mean ± SD [lower/upper 95% confidence intervals]) age 23.7 ± 4.1 (20.8/26.6) y, height 180.2 ± 7.0 (175.2/185.2) cm, body mass 70.6 ± 5.7 (66.5/74.7) kg performed a semicontact bout against handheld pads created from previously analyzed video footage of competitive bouts. Net metabolic energy was calculated using respiratory gases and blood [lactate]. Waer, 526.0 ± 57.1 (485.1/566.9) kJ, was higher (P boxing is predominantly aerobic. They also highlight the importance of a highly developed aerobic capacity as a prerequisite of a high activity rate during rounds and recovery of the high-energy phosphate system during breaks as interrelated requirements of successful boxing.

  19. The Effect of an Orthopaedic Surgical Procedure in the National Basketball Association.

    Science.gov (United States)

    Minhas, Shobhit V; Kester, Benjamin S; Larkin, Kevin E; Hsu, Wellington K

    2016-04-01

    Professional basketball players have a high incidence of injuries requiring surgical intervention. However, no studies in the current literature have compared postoperative performance outcomes among common injuries to determine high- and low-risk procedures to these athletes' careers. To compare return-to-play (RTP) rates and performance-based outcomes after different orthopaedic procedures in National Basketball Association (NBA) players and to determine which surgeries are associated with the worst postoperative change in performance. Cohort study; Level of evidence, 3. Athletes in the NBA undergoing anterior cruciate ligament reconstruction, Achilles tendon repair, lumbar discectomy, microfracture, meniscus surgery, hand/wrist or foot fracture fixation, and shoulder stabilization were identified through team injury reports and archives on public record. The RTP rate, games played per season, and player efficiency rating (PER) were determined before and after surgery. Statistical analysis was used to compare the change between pre- and postsurgical performance among the different injuries. A total of 348 players were included. The RTP rates were highest in patients with hand/wrist fractures (98.1%; mean age, 27.0 years) and lowest for those with Achilles tears (70.8%; mean age, 28.4 years) (P = .005). Age ≥30 years (odds ratio [OR], 3.85; 95% CI, 1.24-11.91) and body mass index ≥27 kg/m(2) (OR, 3.46; 95% CI, 1.05-11.40) were predictors of not returning to play. Players undergoing Achilles tendon repair and arthroscopic knee surgery had a significantly greater decline in postoperative performance outcomes at the 1- and 3-year time points and had shorter career lengths compared with the other procedures. NBA players undergoing Achilles tendon rupture repair or arthroscopic knee surgery had significantly worse performance postoperatively compared with other orthopaedic procedures. © 2016 The Author(s).

  20. PROSPECTIVE EPIDEMIOLOGICAL STUDY OF BASKETBALL INJURIES DURING ONE COMPETITIVE SEASON: ANKLE SPRAINS AND OVERUSE KNEE INJURIES

    Directory of Open Access Journals (Sweden)

    Elke Cumps

    2007-06-01

    Full Text Available This prospective cohort study aims to assess the overall incidence of acute and overuse basketball injuries and identifies risk factors associated with ankle sprains and knee overuse injuries. In total, 164 senior players (23.7 years ± 7.0 of all levels of play, and including both men and women, participated voluntarily during one season. A total of 139 acute and 87 overuse injuries were reported, resulting in an overall injury incidence of 9.8 (8.5 to 11.1 per 1,000 hours. The incidence of acute injuries was 6.0/1,000 hours. Ankle sprains (n = 34 accounted for most acute injuries, and 52.9% of all players with ankle sprains reported a previous ankle sprain. Relative Risks (RR and Odds Ratio (OR with their 95% Confidence Intervals (CI were calculated to determine significant differences. Landing on an opponent's foot was the major inciting event, significantly more so than non contact mechanisms (RR=2.1 [95% CI: 1.0-4.2]. Acute knee injuries resulted in the highest playing absence (7 weeks 2 days ± 9 weeks 1 day. Overuse injury incidence was 3.8/1,000 hours. The knee (1.5/1,000 hours was the most common site. Forward players sustained less knee overuse injuries than players of all other playing positions, and significantly less than center players (OR=0.5 [95% CI: 0.2-0.9]. This study showed that ankle sprains and overuse knee injuries are the most common injuries in basketball, both accounting for 14.8%. Injury prevention programmes however should not concentrate on those injuries only, but might one to consider that acute knee injuries, in spite of the fact that they occur less frequently, also merit further research.

  1. Sex-specific differences in injury types among basketball players

    Directory of Open Access Journals (Sweden)

    Ito E

    2014-12-01

    Full Text Available Eri Ito, Jun Iwamoto, Koichiro Azuma, Hideo MatsumotoInstitute for Integrated Sports Medicine, Keio University School of Medicine, Tokyo, JapanAbstract: The purpose of the present study was to investigate sex-specific differences in injury types among basketball players. According to our database, during the 20-year period between October 1991 and June 2011, 1,219 basketball players (640 males and 579 females consulted our sports medicine clinic; in total, 1,414 injuries in basketball players (729 injuries in males and 685 injuries in females were recorded. The mean age of patients was 19.6 years. The most common injury site was the knee, followed by the foot and ankle, lower back, and upper extremities. There was a higher proportion of female players presenting with a knee injury, compared with male players (50.4% vs 41.7%, and a lower proportion of female players presenting with an upper extremity injury (5.1% vs 9.7%. The proportion of anterior cruciate ligament injury in the 10–19-year-old age group was higher among female players than among male players (45.9% vs 22.1%, while the proportions of Osgood–Schlatter disease in the 10–19-year-old age group and jumper's knee (patellar and femoral tendinopathy in the 20–29-year-old age group were higher among male players than among female players (12.5% vs 1.8% and 14.6% vs 3.7%, respectively. However, the proportions of other injuries did not differ significantly between male and female players. The present observational study, which was performed using a retrospective case-series design, showed the existence of sex-specific differences in knee injuries sustained while participating in basketball.Keywords: sports injury, sex, anterior cruciate ligament injury, Osgood–Schlatter disease, basketball

  2. 76 FR 7847 - Glenn A. Baxter, Application To Renew License for Amateur Radio Service Station K1MAN

    Science.gov (United States)

    2011-02-11

    ... COMMISSION Glenn A. Baxter, Application To Renew License for Amateur Radio Service Station K1MAN AGENCY... renew the license for Amateur Radio Service Station K1MAN filed by Glenn A. Baxter should be granted.... Baxter for renewal of his license for Amateur Radio Station K1MAN should be granted. As discussed below...

  3. ‘The’ pathway towards the elite level in Dutch basketball : A multidimensional and longitudinal study on the development of talented youth basketball players

    NARCIS (Netherlands)

    te Wierike, Sanne Cornelia Maria

    2016-01-01

    Veel jonge talentvolle basketballers hebben één doel voor ogen; de top halen in hun sport. Hoe de ontwikkeling van jonge speler tot aan volwassen basketballer verloopt, is onderzocht in het promotieonderzoek van Sanne te Wierike. Dit onderzoek is uitgevoerd bij Bewegingswetenschappen (UMCG, Rijksuni

  4. ‘The’ pathway towards the elite level in Dutch basketball : A multidimensional and longitudinal study on the development of talented youth basketball players

    NARCIS (Netherlands)

    te Wierike, Sanne Cornelia Maria

    2016-01-01

    Veel jonge talentvolle basketballers hebben één doel voor ogen; de top halen in hun sport. Hoe de ontwikkeling van jonge speler tot aan volwassen basketballer verloopt, is onderzocht in het promotieonderzoek van Sanne te Wierike. Dit onderzoek is uitgevoerd bij Bewegingswetenschappen (UMCG, Rijksuni

  5. Aesthetic Play

    DEFF Research Database (Denmark)

    Bang, Jytte Susanne

    2012-01-01

    The present article explores the role of music-related artefacts and technologies in children’s lives. More specifically, it analyzes how four 10- to 11-year old girls use CDs and DVD games in their music-play activities and which developmental themes and potentials may accrue from such activities...... to the children’s complex life-worlds. Further, this leads to an analysis of music-play activities as play with an art-form (music), which includes aesthetic dimensions and gives the music-play activities its character of being aesthetic play. Following Lev Vygotsky’s insight that art is a way of building life...

  6. Playful Membership

    DEFF Research Database (Denmark)

    Åkerstrøm Andersen, Niels; Pors, Justine Grønbæk

    2014-01-01

    This article studies the implications of current attempts by organizations to adapt to a world of constant change by introducing the notion of playful organizational membership. To this end we conduct a brief semantic history of organizational play and argue that when organizations play, employees...... are expected to engage in playful exploration of alternative selves. Drawing on Niklas Luhmann's theory of time and decision-making and Gregory Bateson's theory of play, the article analyses three empirical examples of how games play with conceptions of time. We explore how games represent an organizational...... desire to reach out - not just to the future - but to futures beyond the future presently imaginable. The article concludes that playful membership is membership through which employees are expected to develop a surplus of potential identities and continuously cross boundaries between real and virtual...

  7. Effects of Reasoning Ability on Field Goal Shooting Skills of Female Basketball Players

    Directory of Open Access Journals (Sweden)

    Virendra Kumar Singh

    2014-10-01

    Full Text Available In the present study, field goal shooting skills of female basketball players were assessed in the background to their reasoning ability. The sample consists of 100 female intercollegiate basketball players (age = 21.05±1.67 yrs.. Shooting skills reasoning ability were assessed by Johnson’s “Basketball Field Goal Speed Shooting Test” and Mixed Type Group Test of Intelligence prepared by Mehrotra (1984, respectively. Results reveal that field goal shooting ability of female basketball players exhibiting superior reasoning ability was found to be significantly better as compared to field goal shooting ability of female basketball players with low and average reasoning ability. It was concluded that shooting skills of female basketball players is influenced by their cognitive ability i.e. ability to rationalize problems in proper sequence.

  8. THE RELATION OF SOME MORPHOLOGICAL CHARACTERISTICS vs. MOTOR ABILITIES IN BASKETBALL

    Directory of Open Access Journals (Sweden)

    Izedin Mehmeti

    2014-06-01

    Full Text Available The main purpose of the present study was to give a try for clarifying if there is difference present and how the level of differences is in morphologic characteristics and motor abilities (basic and situational specific to basketball abilities between junior basketball club players and their peers –students from secondary high school and to examine some of the properties(causes reasons of the difference. According to the findings obtained from the research, there was not found any statistically significant difference between scores of the participant sample group (n=24 (young basketball players (12 vs high school students (12. Acoording to the study results obtained, basketball coaches should follow the new strategies and developments of modern basketball if they want to fulfill the goals and objectives of every single team. The lack of expertise and competencies of professional staff (coaches-trainers to fulfill their duties and responsibilities correctly is evident in Kosovo’s Junior Basketball League.

  9. STRUCTURE TEHNICAL-TACTICS ACTIVITIEST FROM BASKETBALL TEAMS IN NBA-LEAGUE

    Directory of Open Access Journals (Sweden)

    Vesna Jovanova-Simeva

    2007-05-01

    Full Text Available league in the world-NBA league. Population which at to draw out this exemplar consist 102 teams, who is best successful the presents structure of the basketball games of expression above presentation factors. The results from the factor analysis there have been isolated six independent factors: the fi rst factor is defi ne how game construction the fast attack; second factor is de fi ne how tactically game construction the individual actions in defense and attack; the third factor is defi ne how favorable result to outplay with defenses players in at out of margin under basket; fourscater factor is defi ne how game construction in the press defenses and throwing ball in basket than middle distance between; the fi ves factor is defi ne how game construction favorable defenses and on respective and rationally se micon traattacks and sixt factor is defi ne how game construction on the highly and mo bi li tes play ers.

  10. Playful Literacy

    DEFF Research Database (Denmark)

    Froes, Isabel

    2017-01-01

    these practices, which compose the taxonomy of tablet play. My contribution lies in identifying and proposing a series of theoretical concepts that complement recent theories related to play and digital literacy studies. The data collected through observations informed some noteworthy aspects, including how...... with tablets’ physical and digital affordances shape children’s digital play. This thesis presents how young children’s current practices when playing with tablets inform digital experiences in Denmark and Japan. Through an interdisciplinary lens and a grounded theory approach, I have identified and mapped...... vocabulary in children’s digital play experiences. These early digital experiences set the rules for the playgrounds and assert digital tablets as twenty-first-century toys, shaping young children’s playful literacy....

  11. PHYSIOLOGICAL PROFILE OF SENIOR AND JUNIOR ENGLAND INTERNATIONAL AMATEUR BOXERS

    Directory of Open Access Journals (Sweden)

    Marcus S. Smith

    2006-07-01

    Full Text Available Despite worldwide popularity of amateur boxing, research focussed on the physiological demands of the sport is limited. The physiological profile of Senior and Junior England international amateur boxers is presented. A gradual (8 to 21-days and rapid (0 to 7-days phase of body weight reduction was evident with 2.2 ± 0.3 % of the 7.0 ± 0. 8 % weight loss occurring over the final 24-hours. An increase in body weight >4% was observed following a recovery period. High urine osmolality values (> 1000 mOsm·kg-1 were recorded during training and competition. High post-competition blood lactate values (>13.5 mmol·l-1 highlighted the need for a well-developed anaerobic capacity and the importance of not entering the ring in a glycogen depleted state. The aerobic challenge of competition was demonstrated by maximum heart rate values being recorded during 'Open' sparring. Mean body fat values of 9-10% were similar to those reported for other weight classified athletes. Normal resting values were reported for hematocrit (Senior 48 ± 2 % and Junior 45 ± 2 %, haemoglobin (Senior 14.7 ± 1.0 g·dl-1 and Junior 14.5 ± 0.8 g·dl-1, bilirubin (Senior 15.3 ± 6.2 µmol·l-1-1 and ferritin (Senior 63.3 ± 45.7 ng·ml-1. No symptoms associated with asthma or exercise-induced asthma was evident. A well- developed aerobic capacity was reflected in the Senior VO2max value of 63.8 ± 4.8 ml·kg-1·min-1. Senior lead hand straight punching force (head 1722 ± 700 N and body 1682 ± 636 N was lower than the straight rear hand (head 2643 ± 1273 N and body 2646 ± 1083 N, lead hook (head 2412 ± 813 N and body 2414 ± 718 N and rear hook (head 2588 ± 1040 N and body 2555 ± 926 N. It was concluded that amateur boxing performance is dependent on the interplay between anaerobic and aerobic energy systems. Current weight making methods may lead to impaired substrate availability, leading to reduced competitive performance and an increased risk to a boxers health

  12. The Effect Specialization and Diversification Involvement on Learning of Sports Skills According To Deliberate Practice and Deliberate Play

    Directory of Open Access Journals (Sweden)

    Mahdi Fahimi

    2016-12-01

    Full Text Available Objective: The aim was effect deliberate practice and deliberate play on sports skills with emphasis on specialization and diversification in boys 10-12. Methods: The 120 male students randomly divided into four groups of volleyball, soccer, basketball deliberate practice and deliberate play. Pretest and posttest were AAHPERD volleyball, soccer, and Basketball sports skills. Duration of the project was 16 weeks and 3 sessions per week and 90 minutes each session began. Data obtained from questionnaires and personal details about sports experience and test were adjusted using parametric tests, such as T-dependent test and MANOVA with Tukey post hoc test, and software Statistical SPSS19. Results: The results of the study showed that compared four groups, deliberate plays to other deliberate practices have a better motor skill in volleyball, soccer and Basketball sports skills (P<0.05. Volleyball and soccer deliberate practice group had developed Soccer Dribble Test and Control dribble and Defensive movement basketball skills test. Basketball deliberate practice group had not developed the others soccer and volleyball skills. Conclusion: The results showed that diversification participation in some exercises during the early stages of growth, can facilitate the development of general cognitive and physiological skills and create a rich environment for children.

  13. UNSPORTSMANLIKE BEHAVIORS IN THE TURKISH BASKETBALL AND SOCCER LEAGUES FROM THE VIEW OF REFEREES

    OpenAIRE

    GÜRPINAR, Bahri; GÜVEN, Özbay

    2012-01-01

    The purpose of this study is to analyze the unsportsmanlike behaviors the basketball and soccer referees are subject to and reveal the differences in unsportsmanlike behaviors between the leagues. There are 192 basketball, 129 soccer referees officiating in Turkey’s league of basketball and soccer in the season of 2007-2008, participated in this study. “Personal Information and View Form” and “Unsportsmanlike Behaviors Questionnaire” were used as the data-collection tools. At the end of this ...

  14. Bourdieu Knew More than How to Play Tennis! An Empirically Based Discussion of Habituation and Reflexivity

    Science.gov (United States)

    Strandbu, Åse; Steen-Johnsen, Kari

    2014-01-01

    This paper explores the role of reflexivity in habituation by contrasting the learning of aerobics and basketball with the acquisition of gendered bodily skills. The discussion is inspired by the paper "So, how did Bourdieu learn to play tennis? Habitus, consciousness and habituation," by Noble and Watkins (2003), which represents a…

  15. Bourdieu Knew More than How to Play Tennis! An Empirically Based Discussion of Habituation and Reflexivity

    Science.gov (United States)

    Strandbu, Åse; Steen-Johnsen, Kari

    2014-01-01

    This paper explores the role of reflexivity in habituation by contrasting the learning of aerobics and basketball with the acquisition of gendered bodily skills. The discussion is inspired by the paper "So, how did Bourdieu learn to play tennis? Habitus, consciousness and habituation," by Noble and Watkins (2003), which represents a…

  16. Pretend play.

    Science.gov (United States)

    Weisberg, Deena Skolnick

    2015-01-01

    Pretend play is a form of playful behavior that involves nonliteral action. Although on the surface this activity appears to be merely for fun, recent research has discovered that children's pretend play has connections to important cognitive and social skills, such as symbolic thinking, theory of mind, and counterfactual reasoning. The current article first defines pretend play and then reviews the arguments and evidence for these three connections. Pretend play has a nonliteral correspondence to reality, hence pretending may provide children with practice with navigating symbolic relationships, which may strengthen their language skills. Pretend play and theory of mind reasoning share a focus on others' mental states in order to correctly interpret their behavior, hence pretending and theory of mind may be mutually supportive in development. Pretend play and counterfactual reasoning both involve representing nonreal states of affairs, hence pretending may facilitate children's counterfactual abilities. These connections make pretend play an important phenomenon in cognitive science: Studying children's pretend play can provide insight into these other abilities and their developmental trajectories, and thereby into human cognitive architecture and its development.

  17. Playful Interaction

    DEFF Research Database (Denmark)

    2003-01-01

    The video Playful Interaction describes a future architectural office, and envisions ideas and concepts for playful interactions between people, materials and appliances in a pervasive and augmented working environment. The video both describes existing developments, technologies and designs...... as well as ideas not yet implemented such as playful modes of interaction with an augmented ball. Playful Interaction has been used as a hybrid of a vision video and a video prototype (1). Externally the video has been used to visualising our new ideas, and internally the video has also worked to inspire...

  18. Mediatized play

    DEFF Research Database (Denmark)

    Johansen, Stine Liv

    Children’s play must nowadays be understood as a mediatized field in society and culture. Media – understood in a very broad sense - holds severe explanatory power in describing and understanding the practice of play, since play happens both with, through and inspired by media of different sorts....... In this presentation the case of ‘playing soccer’ will be outlined through its different mediated manifestations, including soccer games and programs on TV, computer games, magazines, books, YouTube videos and soccer trading cards....

  19. Play practices and play moods

    DEFF Research Database (Denmark)

    Karoff, Helle Skovbjerg

    2013-01-01

    The aim of this article is to develop a view of play as a relation between play practices and play moods based on an empirical study of children's everyday life and by using Bateson's term of ‘framing’ [(1955/2001). In Steps to an ecology of mind (pp. 75–80). Chicago: University of Chicago Press......], Schmidt's notion of ‘commonness’ [(2005). Om respekten. København: Danmarks Pædagogiske Universitets Forlag; (2011). On respect. Copenhagen: Danish School of Education University Press] and Heidegger's term ‘mood’ [(1938/1996). Time and being. Cornwall: Wiley-Blackwell.]. Play mood is a state of being...... in which we are open and ready, both to others and their production of meaning and to new opportunities for producing meaning. This play mood is created when we engage with the world during play practices. The article points out four types of play moods – devotion, intensity, tension and euphorica – which...

  20. Repeated sprint ability and stride kinematics are altered following an official match in national-level basketball players.

    Science.gov (United States)

    Delextrat, A; Baliqi, F; Clarke, N

    2013-04-01

    The aim of the study was to investigate the effects of playing an official national-level basketball match on repeated sprint ability (RSA) and stride kinematics. Nine male starting basketball players (22.8±2.2 years old, 191.3±5.8 cm, 88±10.3 kg, 12.3±4.6% body fat) volunteered to take part. Six repetitions of maximal 4-s sprints were performed on a non-motorised treadmill, separated by 21-s of passive recovery, before and immediately after playing an official match. Fluid loss, playing time, and the frequencies of the main match activities were recorded. The peak, mean, and performance decrement for average and maximal speed, acceleration, power, vertical and horizontal forces, and stride parameters were calculated over the six sprints. Differences between pre- and post-match were assessed by student t-tests. Significant differences between pre- and post-tests were observed in mean speed (-3.3%), peak and mean horizontal forces (-4.3% and -17.4%), peak and mean vertical forces (-3.4% and -3.7%), contact time (+7.3%), stride duration (+4.6%) and stride frequency (-4.0%), (Psprint, jump and shuffle frequencies (Prepeated sprint ability depends on the specific activities performed, and that replacing fluid loss through sweating during a match is crucial.

  1. Against Amateur Economies: Spec Work Competitions and the Anti-spec Movement

    Directory of Open Access Journals (Sweden)

    Helen Kennedy

    2013-04-01

    Full Text Available The rise and rise of the amateur cultural producer has been greeted with a spectacular amount of celebratory rhetoric, in both popular and academic writing . It has also been criticised, often for the inferior quality of amateur productions compared to the fruits of professional labour. But apart from that by a small number of journalism scholars, little empirical research has been carried out with professional creative labourers about the impact of amateur economies on their work, and their responses to amateur production practices. This article addresses that gap, and also counterbalances the dominant celebratory discourse by focusing on an initiative that is critical of amateur economies and that emerges from creative workers themselves: the anti-spec movement within design industries. Anti-spec activists campaign against speculative (or spec work, which is seen as one problematic materialisation of crowdsourced, amateur economies. Here, it is argued that responses to spec work can be understood in relation to designers’ ethics and values and the extent to which they feel that these are thrown into question by amateur activity.

  2. The system of tactical training basketball teams of students using interactive technologies.

    Directory of Open Access Journals (Sweden)

    Kozina Zh.L

    2011-08-01

    Full Text Available A program for improving the effectiveness of tactical training of basketball teams of students with techniques to enhance the perception of figurative elements of technique and tactics of basketball on the basis of modern information technology. The study involved 23 female basketball players of 18-23 years of student teams, 11 of which were experimental group and 12 - control. Established that the developed system improves the quality of performance technique techniques of basketball, the effectiveness of actions in the game, raising the number of implemented in-game tactical interactions.

  3. Effect of carbohydrate or sodium bicarbonate ingestion on performance during a validated basketball simulation test.

    Science.gov (United States)

    Afman, Gregg; Garside, Richard M; Dinan, Neal; Gant, Nicholas; Betts, James A; Williams, Clyde

    2014-12-01

    Current recommendations for nutritional interventions in basketball are largely extrapolated from laboratory-based studies that are not sport-specific. We therefore adapted and validated a basketball simulation test relative to competitive basketball games using well-trained basketball players (n = 10), then employed this test to evaluate the effects of two common preexercise nutritional interventions on basketball-specific physical and skilled performance. Specifically, in a randomized and counterbalanced order, participants ingested solutions providing either 75 g carbohydrate (sucrose) 45 min before exercise (Study A; n = 10) or 2 × 0.2 g · kg(-1) sodium bicarbonate (NaHCO3) 90 and 20 min before exercise (Study B; n = 7), each relative to appropriate placebos (H2O and 2 × 0.14 g · kg(-1) NaCl, respectively). Heart rate, sweat rate, pedometer count, and perceived exertion did not systematically differ between the 60-min basketball simulation test and competitive basketball, with a strong positive correlation in heart rate response (r = .9, p basketball simulation test provides a valid reflection of physiological demands in competitive basketball and is sufficiently sensitive to detect meaningful changes in physical and skilled performance. While there are benefits of preexercise carbohydrate or sodium bicarbonate ingestion, these should be balanced against potential negative side effects.

  4. Assessment of noise exposure for basketball sports referees.

    Science.gov (United States)

    Masullo, Massimiliano; Lenzuni, Paolo; Maffei, Luigi; Nataletti, Pietro; Ciaburro, Giuseppe; Annesi, Diego; Moschetto, Antonio

    2016-01-01

    Dosimetric measurements carried out on basketball referees have shown that whistles not only generate very high peak sound pressure levels, but also play a relevant role in determining the overall exposure to noise of the exposed subjects. Because of the peculiar geometry determined by the mutual positions of the whistle, the microphone, and the ear, experimental data cannot be directly compared with existing occupational noise exposure and/or action limits. In this article, an original methodology, which allows experimental results to be reliably compared with the aforementioned limits, is presented. The methodology is based on the use of two correction factors to compensate the effects of the position of the dosimeter microphone (fR) and of the sound source (fS). Correction factors were calculated by means of laboratory measurements for two models of whistles (Fox 40 Classic and Fox 40 Sonik) and for two head orientations (frontal and oblique).Results sho w that for peak sound pressure levels the values of fR and fS, are in the range -8.3 to -4.6 dB and -6.0 to -1.7 dB, respectively. If one considers the Sound Exposure Levels (SEL) of whistle events, the same correction factors are in the range of -8.9 to -5.3 dB and -5.4 to -1.5 dB, respectively. The application of these correction factors shows that the corrected weekly noise exposure level for referees is 80.6 dB(A), which is slightly in excess of the lower action limit of the 2003/10/EC directive, and a few dB below the Recommended Exposure Limit (REL) proposed by the National Institute for Occupational Safety and Health (NIOSH). The corrected largest peak sound pressure level is 134.7 dB(C) which is comparable to the lower action limit of the 2003/10/EC directive, but again substantially lower than the ceiling limit of 140 dB(A) set by NIOSH.

  5. Getting started in radio astronomy beginner projects for the amateur

    CERN Document Server

    Arnold, Steven

    2013-01-01

    Radio astronomy is a mystery to the majority of amateur astronomers, yet it is the best subject to turn to when desirous of an expanded knowledge of the sky. This guide intends to instruct complete newcomers to radio astronomy, and provides help for the first steps on the road towards the study of this fascinating subject. In addition to a history of the science behind the pursuit, directions are included for four easy-to-build projects, based around long-term NASA and Stanford Solar Center projects. The first three projects constitute self-contained units available as kits, so there is no nee

  6. Direction of technical and tactical skill in athletes playing team sports, playing with light position

    Directory of Open Access Journals (Sweden)

    Doroshenko Eduard Iur'evich

    2011-10-01

    Full Text Available A new method for evaluating the effectiveness of technical and tactical activities in basketball. A distinctive feature of the technique is presented key components of the accounting games, length of stay in the athletes play and the specific features of the game line. Established the specific means of correction of the training process taking into account the magnitude and direction of the load. Identified ways of solving the problem of optimal evaluation of gaming activities, taking into account the length of stay player on the court and its role. Refine management training process in team sports.

  7. Peer pressure and thai amateur golfers' gambling on their games: the mediating effect of golf self-efficacy.

    Science.gov (United States)

    Ariyabuddhiphongs, Vanchai; Promsakha Na Sakolnakorn, Chomnad

    2014-09-01

    Our study hypothesizes that Thai amateur golfers gamble on their game because of peer pressure and their golf self-efficacy. To support our hypothesis, we conducted a study to examine the mediating effect of golf self-efficacy on the peer pressure-golf gambling relationship among 387 amateur golfers in Thailand. Peer pressure was operationally defined as fellow players' influence on the individual golfer to gamble; golf self-efficacy as the judgment of the golfer's skills to play golf; and golf gambling as the frequency and amounts of gambling. Regression analysis with bootstrapping was used to test the mediation effect of golf self-efficacy on the peer pressure-golf gambling relationship. The results support our hypothesis; peer pressure predicted golf gambling, and the indirect effect of peer pressure to golf gambling through the mediation of golf self-efficacy was significant. The results support the influence of peer pressure on gambling, and the social cognitive theory reciprocal relationship model.

  8. INCIDENCE OF FREE THROWS IN PROFESSIONAL BASKETBALL GAMES

    Directory of Open Access Journals (Sweden)

    José Vicente García Tormo

    2015-04-01

    Full Text Available The aim of this study is to describe the incident of the free throw on the final results of the basketball match, and see how other factors may influence the final average of successful free throws, comparing national leagues with European competition. A total of 59,364 free throws have been analyzed, corresponding to 1722 matches from two seasons of the Spanish professional basketball league (ACB and LFB and European league (Euroleague Euroleague and women. Has been made descriptive analysis, an analysis of synchrony and an analysis of the residuals corrected. The results demonstrate the importance of free throws for the final score, especially in male and when is a close match. Likewise, the home court advantage is related to higher efficiency in free throws and win the match.Key words:

  9. Psychological predictors of coping responses among Greek basketball referees.

    Science.gov (United States)

    Kaissidis-Rodafinos, A; Anshel, M H

    2000-06-01

    The authors examined the effects of situational appraisals (perceived control and intensity), coping styles (monitoring and blunting), and personal dispositions (optimism and self-esteem) on the approach and avoidance coping responses of skilled Greek basketball referees (N = 162) and the consistency of their responses following 3 game-related stressful situations. In an effort to clarify the variables involved in coping and to consider the theoretical principles both within and beyond sports, the authors replicated an earlier study among Australian basketball referees (A. Kaissidis-Rodafinos, M. H. Anshel, & A. Porter, 1997). The results were equivocal: The Greek referees were not consistent in using avoidance and approach coping responses across situations. Approach coping was more predictable than avoidance coping in accounting for both situational and personal variables.

  10. The influence of in-game emotions on basketball performance.

    Science.gov (United States)

    Uphill, Mark; Groom, Ryan; Jones, Marc

    2014-01-01

    This study examined the influence of emotions on performance in basketball. Six female basketball players were videotaped in six games. Frequency of performance behaviours was recorded minute-by-minute and indices of successful (SGI) and unsuccessful (UGI) game involvement derived for each player. Post-game, players reported the intensity of experienced emotions (anger, anxiety, embarrassment, excitement and happiness), and the time of the eliciting incident. The only emotion revealed as a significant predictor of SGI was happiness; both anger and embarrassment were significant predictors of increased UGI. Consideration of individual player analyses suggests that there is variation in the magnitude of the influence of emotions on performance and the extent to which this influence was helpful or harmful to performance. The study provides evidence that emotions are associated with changes in game behaviours in competition. Implications for further research examining the emotion-performance relationship are discussed.

  11. Precision: A motor capability that defines a successful basketball player

    Directory of Open Access Journals (Sweden)

    Isaković Marko

    2013-01-01

    Full Text Available Precision, as a basic motor ability, represents, along with coordination, the least explored area of motorics. Insufficient research of this phenomenon is also true of basketball. Within it, we monitor displays of precision in the most specific of all conditions - during a basketball game. This paper represents a review of research concerning precision, with a brief critical overview of the mentioned phenomenon. Apart from the conclusions, which speak about precision as the basic motor capability (and have been presented as products of speculation and earlier findings, a review of empirical research related to situational precision has also been presented. These studies have been aimed at finding a connection between shot patterns and distance to target; goal visualisation; influence of skeleton dimension on precision. One of the goals of this paper is to point out the significance of precision of players at guard position, which could be a significant selection factor.

  12. Multimodal Semantic Analysis and Annotation for Basketball Video

    Science.gov (United States)

    Liu, Song; Xu, Min; Yi, Haoran; Chia, Liang-Tien; Rajan, Deepu

    2006-12-01

    This paper presents a new multiple-modality method for extracting semantic information from basketball video. The visual, motion, and audio information are extracted from video to first generate some low-level video segmentation and classification. Domain knowledge is further exploited for detecting interesting events in the basketball video. For video, both visual and motion prediction information are utilized for shot and scene boundary detection algorithm; this will be followed by scene classification. For audio, audio keysounds are sets of specific audio sounds related to semantic events and a classification method based on hidden Markov model (HMM) is used for audio keysound identification. Subsequently, by analyzing the multimodal information, the positions of potential semantic events, such as "foul" and "shot at the basket," are located with additional domain knowledge. Finally, a video annotation is generated according to MPEG-7 multimedia description schemes (MDSs). Experimental results demonstrate the effectiveness of the proposed method.

  13. Effectiveness during ball screens in elite basketball games.

    Science.gov (United States)

    Gómez, Miguel-Ángel; Battaglia, Otavio; Lorenzo, Alberto; Lorenzo, Jorge; Jiménez, Sergio; Sampaio, Jaime

    2015-01-01

    Ball screens are one of the most frequently used tactical behaviour in elite basketball games. The aim of the present study was to identify their predictors of success related to time, space, players, and tasks performed. The sample was composed of 818 ball screens corresponding to 20 close games (mean differences in score of 3.1 ± 0.8 points) randomly selected from the playoff games of the Spanish Basketball League (2008-2011). Classification tree analysis (CHAID) was used to analyse which variable or combination of variables, better predicts effectiveness during ball screens. The main results allowed identifying interactions with dribbler actions after the screen and the orientation of the screen on the ball. The results showed no interaction with game quarter and quarter minute temporal-related variables in both analyses. The present findings allow improving coaches' strategic plans that involve selecting the most appropriate offensive approach when performing ball screens.

  14. Fluctuations in Activity Demands Across Game Quarters in Professional and Semiprofessional Male Basketball.

    Science.gov (United States)

    Scanlan, Aaron T; Tucker, Patrick S; Dascombe, Ben J; Berkelmans, Daniel M; Hiskens, Matthew I; Dalbo, Vincent J

    2015-11-01

    Examination of activity demands and stoppage durations across game periods provides useful insight concerning fatigue, tactical strategies, and playing pace in team sports such as basketball. Therefore, the aims of this study were to quantify and compare game activity fluctuations across quarters in professional and semiprofessional basketball players. Video-based time-motion analyses were conducted across multiple games. Frequencies, total durations (in seconds), total distances (in meters), and mean velocities (in meters per second) were calculated for low-intensity movement (≤3 m·s), high-intensity movement (>3 m·s), shuffling, and dribbling activity. Frequencies were determined for jumping and upper-body activity; stoppage durations were also calculated. Separate repeated-measures analysis of variance and Cohen's d were used to identify significant differences and quantify the effect sizes between game quarters for all outcome measures, respectively. Pearson correlation analyses were performed to determine the relationship between stoppage duration and all activity measures. The results showed significantly (p ≤ 0.05) reduced dribbling (3.09 ± 0.03 m·s vs. 2.81 ± 0.01 m·s) and total (2.22 ± 0.04 m·s vs. 2.09 ± 0.03 m·s) activity velocities during the third compared with the first quarter in professional players. Furthermore, effect size analyses showed greater decreases in high-intensity (professional: d = 1.7-5.4; semiprofessional: d = 0.3-1.7), shuffling (professional: d = 2.3-3.2; semiprofessional: d = 1.4-2.1), and total (professional: d = 1.0-4.9; semiprofessional: d = 0.3-0.8) activity and increases in dribbling (professional: d = 1.4-4.7; semiprofessional: d = 2.5-2.8) with game progression in professional players. In semiprofessional players, stoppage duration was significantly (p ≤ 0.05) related to various low-intensity (R = 0.64-0.72), high-intensity (R = 0.65-0.72), and total (R = 0.63-0.73) activity measures. Although not directly

  15. Research of level of formed knowledge, abilities and skills on basket-ball for the students of faculty of physical education.

    Directory of Open Access Journals (Sweden)

    Kovalenko J.A.

    2011-06-01

    Full Text Available The results of a zero control of students of faculty of physical education are presented. The estimation of theoretical knowledge's is conducted, abilities and skills on basket-ball for the students of a 1 course of directions of preparation «Physical education», «Health of man» and «Sport». It is set that the level of their formed at most students of different directions of preparation is insufficient. It is certain that by reason of such position, foremost, there is insufficient preparation and playing practice of students during teaching at general school. A diary is developed on basket-ball for student general schools.

  16. Playful Organizations

    DEFF Research Database (Denmark)

    Pors, Justine Grønbæk; Åkerstrøm Andersen, Niels

    2015-01-01

    and undecidability. With an empirical point of departure in Danish public school policy and two concrete examples of games utilised in school development, the article analyses how play is a way for organisations to simultaneously decide and also avoid making a decision, thus keeping flexibility and possibilities...... intact. In its final sections, the article discusses what happens to conditions of decision-making when organisations do not just see undecidability as a given condition, but as a limited resource indispensable for change and renewal. The article advances discussions of organisational play by exploring......This article explores how organisational play becomes a managerial tool to increase and benefit from undecidability. The article draws on Niklas Luhmann's concept of decision and on Gregory Bateson's theory of play to create a conceptual framework for analysing the relation between decision...

  17. Athletic Cardiac Remodeling in US Professional Basketball Players.

    Science.gov (United States)

    Engel, David J; Schwartz, Allan; Homma, Shunichi

    2016-04-01

    The incidence of sudden cardiac death is higher in US basketball players compared with other athlete groups. However, the recognition of the risk for sudden cardiac death among basketball players is challenging because little is known regarding athletic cardiac remodeling in these athletes or athletes of similarly increased size. To perform a comprehensive cardiac structural analysis of National Basketball Association (NBA) professional athletes. Echocardiographic observational study of NBA players on the active rosters for the 2013-2014 and 2014-2015 seasons was performed from December 16, 2013, to December 12, 2014. The policy of the NBA mandates annual preseason stress echocardiograms for each player. The NBA has sanctioned Columbia University Medical Center to conduct annual health and safety reviews of these echocardiograms. Data were analyzed from January to May 2015. Cardiac variables assessed included left ventricular (LV) size, mass, wall thickness, and hypertrophy patterns and function; left atrial volume; and aortic root diameter. All dimensions were biometrically scaled. Of the 526 athletes included in the study, 406 (77.2%) were African American and 107 (20.3%) were white, with a mean (SD) age of 25.7 (4.3) years. Mean (SD) athlete height was 200.2 (8.8) cm; mean body surface area, 2.38 (0.19) m2. Left ventricular size and mass in NBA athletes were proportional to body size, extending to the uppermost biometrics of the cohort. Left ventricular hypertrophy was present in 144 athletes (27.4%). African American athletes had increased LV wall thickness (unadjusted mean, 11.2 mm; 95% CI, 11.1-11.3 mm) and LV mass (unadjusted mean, 106.3 g/m2; 95% CI, 104.6-108.0 g/m2) compared with LV wall thickness (unadjusted mean, 10.5 mm; 95% CI, 10.3-10.7 mm; P basketball players and the athletic community at large.

  18. Factorized Point Process Intensities: A Spatial Analysis of Professional Basketball

    OpenAIRE

    Miller, Andrew; Bornn, Luke; Adams, Ryan Prescott; Goldsberry, Kirk P

    2014-01-01

    We develop a machine learning approach to represent and analyze the underlying spatial structure that governs shot selection among professional basketball players in the NBA. Typically, NBA players are discussed and compared in an heuristic, imprecise manner that relies on unmeasured intuitions about player behavior. This makes it difficult to draw comparisons between players and make accurate player specific predictions. Modeling shot attempt data as a point process, we create a low dimensio...

  19. Acute hormonal, immunological and enzymatic responses to a basketball game

    Directory of Open Access Journals (Sweden)

    Denis Foschini

    2008-12-01

    Full Text Available The objective of the present study was to analyze the acute hormonal, immunological and enzymatic responses of professional basketball players to a basketball game. The sample was composed of eight basketball athletes, with a minimum of 4 years’ experience in basketball. A real game was simulated with a total duration of 40 minutes, divided into two halves of 20 minutes each and an interval of 10 minutes between halves. Blood samples were collected before andimmediately after the game (20 ml, vacuum tube system. The variables analyzed were: testosterone and cortisol hormones, total leukocytes, neutrophils, lymphocytes, monocytes and the enzymes creatine kinase (CK and lactate dehydrogenase (LDH. Statistical analysis was with descriptive statistics and the Student’s t test for paired samples to p≤0.05. The pre (13.34 nmol/L and 301.97 nmol/L and post game (17.34 nmol/L and 395.91 nmol/L levels of testosterone and cortisol were statistically different, with higher levels after the game for both hormones. The immune cell counts exhibited significant differences for total leukocytes (6393.75 nmol/L and 9158.75 nmol/L and neutrophils (3532.5 nmol/L and 6392.62 nmol/L, with levels being higher after the game. No statistical differences were observed for the enzymatic variables. Therefore, based on the markers analyzed, testosterone and cortisol exhibited pronounced increases after the game and the samebehavior was observed for total leukocytes and neutrophils.

  20. Development of repeated sprint ability in talented youth basketball players.

    Science.gov (United States)

    te Wierike, Sanne C M; de Jong, Mark C; Tromp, Eveline J Y; Vuijk, Pieter J; Lemmink, Koen A P M; Malina, Robert M; Elferink-Gemser, Marije T; Visscher, Chris

    2014-04-01

    Factors affecting repeated sprint ability (RSA) were evaluated in a mixed-longitudinal sample of 48 elite basketball players 14-19 years of age (16.1 ± 1.7 years). Players were observed on 6 occasions during the 2008-09 and 2009-10 seasons. Three following basketball-specific field tests were administered on each occasion: the shuttle sprint test for RSA, the vertical jump for lower body explosive strength (power), and the interval shuttle run test for interval endurance capacity. Height and weight were measured; body composition was estimated (percent fat, lean body mass). Multilevel modeling of RSA development curve was used with 32 players (16.0 ± 1.7 years) who had 2 or more observations. The 16 players (16.1 ± 1.8 years) measured on only 1 occasion were used as a control group to evaluate the appropriateness of the model. Age, lower body explosive strength, and interval endurance capacity significantly contributed to RSA (p ≤ 0.05). Repeated sprint ability improved with age from 14 to 17 years (p ≤ 0.05) and reached a plateau at 17-19 years. Predicted RSA did not significantly differ from measured RSA in the control group (p ≥ 0.05). The results suggest a potentially important role for the training of lower body explosive strength and interval endurance capacity in the development of RSA among youth basketball players. Age-specific reference values for RSA of youth players may assist basketball coaches in setting appropriate goals for individual players.

  1. Massive basketball diagram for a thermal scalar field theory

    Science.gov (United States)

    Andersen, Jens O.; Braaten, Eric; Strickland, Michael

    2000-08-01

    The ``basketball diagram'' is a three-loop vacuum diagram for a scalar field theory that cannot be expressed in terms of one-loop diagrams. We calculate this diagram for a massive scalar field at nonzero temperature, reducing it to expressions involving three-dimensional integrals that can be easily evaluated numerically. We use this result to calculate the free energy for a massive scalar field with a φ4 interaction to three-loop order.

  2. Competitive warm-up in basketball: literature review and proposal

    Directory of Open Access Journals (Sweden)

    Daniel Berdejo-del-Fresno

    2011-05-01

    Full Text Available Abstract Warm-up is used, accepted and performed by every participant before practising any sport. Warm-up is also considered by most sportmen as fundamental to achieve optimal performance. However, there is little scientific evidence supporting its effectiveness. This lack of evidence, together with the diversity of sports, requires the standardisation of common warm-up patterns for each sport activity. As elite basketball is concerned, a large scientific gap has been found, which the present article will attempt to fill in. Therefore, the objectives of this paper are: first, conducting a literature review on all aspects of warm-up, i.e. warm-up definition, warm up types, warm-up benefits, warm-up structure (intensity, duration, recovery and specificity, influential factors, as well as what kind of stretching must be included in the warm-up; and secondly, from the conclusions obtained,  describing and proposing a methodology which is adapted to competitive warm-up for high-level basketball, so this methodology serves as a justified reference guide when going through the pre-game phase.Key Words: static stretching, dynamic stretching, generic warm-up, specific warm-up, basketball.

  3. Personal attributes of female basketball athletes in training

    Directory of Open Access Journals (Sweden)

    Alexandra Folle

    2015-11-01

    Full Text Available This study, based on the Bioecological Theory of Human Development, was aimed at examining the personal attributes of athletes belonging to a prominent club in the field of developing female basketball athletes. Participants were 31 athletes and two coaches who participate in youth sports divisions. Data were collected through semi structured interviews, guided by the following main themes: personal characteristics, motivation for sports, best moments of the sporting career (athletes, sports talent identification process (coaches. Participants’ interviews were analyzed using the content analysis technique, through the categorical type. The information found highlighted the presence of the three dimensions emphasized in the Bioecological Theory of Human Development. Height is presented as an important measure for the detection of athletes (positive demand. Interpersonal relationships stood out as motivating factors for entry in basketball practice, while psychological skills reinforced engagement and maintaining the sports career (generating provisions. Passive features, as well as incompatibilities between mesosystem of athletes’ participation and negative affective interpersonal relationships stood out in terms of favoring disruptive provisions of the temporary withdrawal or feelings of sport abandonment. Finally, positive moments (active resources exceeded negative moments (passive resources when it comes to important moments in sports history. The results found suggest that personal attributes of athletes, in addition to the training process occurred in the sporting environment, have enabled the experience of competence results in the process of development of female basketball athletes.

  4. Neuromuscular and metabolic characteristics of elite basketball referees.

    Science.gov (United States)

    Bonganha, V; Cavaglieri, C R; Daniel, J F; Mercadante, L A; Montagner, P C; Borin, J P

    2013-06-01

    The dynamics of Basketball refereeing has changed and more recently the championships started to use the participation of three referees, but there is still a lack of information about the physical characteristics and performance of the referees. The aim of this study was to characterize the neuromuscular and metabolic performances and body composition of Brazilian elite basketball referees, with a level of national and international refereeing. Thirty-seven referees participated in the study (international level N.=17 and national level N.=20). We evaluated anthropometric and body composition variables, among them: height, body mass, body mass index (BMI) and body fat (%); metabolic parameters: lactate at rest and post-exercise; and neuromuscular performance: speed, explosive lower limbs strength, flexibility and aerobic capacity. The main results showed a statistically significant difference in age, in which the international referees were older than the national level (41.94±6.71; 37.30±7.23; P=0.036). There were not significant differences between the levels for neuromuscular and metabolic parameters and body composition. Comparing the results with athletes, the referees showed lower neuromuscular and metabolic parameters and the body composition showed higher body fat than basketball players. These data may represent physiological parameters to be considered in the prescription of physical training during the preparation and competition period.

  5. Biomechanical Analysis of the Jump Shot in Basketball

    Directory of Open Access Journals (Sweden)

    Struzik Artur

    2014-10-01

    Full Text Available Basketball players usually score points during the game using the jump shot. For this reason, the jump shot is considered to be the most important element of technique in basketball and requires a high level of performance. The aim of this study was to compare the biomechanical characteristics of the lower limbs during a jump shot without the ball and a countermovement jump without an arm swing. The differences between variables provide information about the potential that an athlete can utilise during a game when performing a jump shot. The study was conducted among 20 second-league basketball players by means of a Kistler force plate and the BTS SMART system for motion analysis. The variables measured included the take-off time, mean power, peak power, relative mean power, jump height, maximum landing force and calculated impact ratio. Surprisingly, more advantageous variables were found for the jump shot. This finding suggests a very high performance level in the jump shot in the studied group and a maximum utilisation of their motor abilities. Both types of jumps were characterised by high mean and peak power values and average heights. The high forces at landing, which result in considerable impact ratios, may have prompted the studied group to land softly. Use of the countermovement jump without an arm swing is recommended to assess and predict the progression of player’s jumping ability

  6. Relative age effect and selection of young basketball players

    Directory of Open Access Journals (Sweden)

    Vučković Igor

    2013-01-01

    Full Text Available Purpose of the present study was to examine whether influence of relative age effect (RAE exists or not in the selected 13 year old basketball players. Subjects were 20 basketball players (HT=177.35cm±6.73, BW=61.42kg±8.98, average age 13 years and 7 months ±.28, average experience in basketball training 4 years and 6 months ±1.15. Sample was divided in two groups: 11 players born in first half of the year and 9 players born in the second half of the year. One-way ANOVA was used in order to analyze the differences between the two groups of players in set of anthropometric variables (body height, arm span, standing reach height, body weight and percentage of body fat, motor variables (velocity of neuromuscular reaction time, vertical jump, 5 meters sprint, 10 meters sprint, 20 meters sprint, T-test, Zig-zag test, ball throw from sitting position, Sit-ups for 30 seconds and standing forward bend and one functional variable (20-M shuttle run test. Subjects do not differ in applied set of parameters, except in on variable (sit-ups for 30 seconds, p=.040. It was concluded that RAE does not exist in this sample of examinees.

  7. Factors Affecting Ankle Support Device Usage in Young Basketball Players

    Directory of Open Access Journals (Sweden)

    Michael D. Cusimano

    2013-05-01

    Full Text Available This cross-sectional study explores factors affecting the decision of basketball players to wear ankle support devices (ASDs. A questionnaire regarding attitudes towards ASD usage was developed based on the Health Belief Model (HBM. The questionnaire assessed HBM perceptions (susceptibility, severity, benefits, and barriers and modifying factors (demographic, personal history of ankle injury, influence of coach to preventive action that may affect an athlete’s decision to wear ASDs. One hundred forty basketball players competing at the recreational, high school, or university levels completed the questionnaire, with the questionnaires being completed at the basketball gymnasium or at home. It was found that athletes whose coaches enforced ASD use were significantly more likely to wear them (OR: 35.71; 95% CI: 10.01, 127.36, as were athletes who perceived ankle injuries to be severe (OR: 2.77; 95% CI: 1.04, 7.37. Previous injury did not significantly increase the odds of using an ASD. The combined influence of coach enforcement and previous injury had the greatest effect on increasing ASD use. The largest barrier to ASD use was a lack of aesthetic appeal. Strategies aimed at increasing players’ willingness to wear ankle protection should be emphasized among coaches and parents as this may increase use of ASDs.

  8. Retention of quiet eye in older skilled basketball players.

    Science.gov (United States)

    Fischer, Lennart; Rienhoff, Rebecca; Tirp, Judith; Baker, Joseph; Strauss, Bernd; Schorer, Jörg

    2015-01-01

    There is mounting research to suggest that cognitive and motor expertise is more resistant to age-related decline than more general capacities. The authors investigated the retention of skills in medium-aged skilled (n = 14) and older-aged skilled (n = 7) athletes by comparing them with medium-aged less skilled (n = 15) and older-aged less skilled (n = 15) participants. Participants performed basketball free throws and dart throws as a transfer task under standardized conditions. Motor performance (accuracy) and perceptual performance (quiet eye) were examined across the four groups. There were significant differences between skill groups and age groups in throwing accuracy on both throwing tasks. Skilled players outperformed less skilled and medium-aged players outperformed older-aged players in basketball and dart throws. There were no significant differences in quiet eye duration across the skill or age groups in either task. These results indicate expertise in a perceptual motor task such as the basketball free throw can be retained in older athletes and that present models of skill maintenance should be re-evaluated to consider the issue of transfer.

  9. Influence of training mini-basketball in the first year of training at the level of the physical health of children 6–7 years

    Directory of Open Access Journals (Sweden)

    Olena Mitova

    2015-12-01

    Full Text Available Purpose: to analyze the contemporary state of early specialization in sport, to find out its positive and negative influence on children`s organism on the basis of scientific and methodological literature, and also to carry out the control of the level of the health of the children aged 6–7 years old before training and after the first year of playing mini-basketball. Material and Methods: the study involved 60 children aged 6–7 years old, 22 – girls and 38 – boys, who were engaged in a section of mini-basketball in Sports Children and Youth Olympic school №5 in Dnipropetrovsk during 2013/2014 used the following research methods: theoretical analysis and compilation of scientific and methodical literature and the Internet, the method of analysis of documentary materials, pedagogical supervision, monitoring physical health of rapid assessment Apanasenko (1992, the method of mathematical statistics. Results: there was defined the level of physical health (according to rapid assessment by Apanasenko (1992 of the children aged 6–7 years old before and after the first year of mini-basketball training. Conclusion: the results of our study confirm the experts opinion that nonsufficient level of the physical health of children aged 6–7 years old before going in for sport and insignificant increase in performance after the first year of playing mini-basketball is related not only to the deterioration of environmental and socio-economic conditions of modern society but also to significant deficiencies in the sports training of children of different ages, which no longer meets the requirements of the present time and needs to be improved

  10. Detecting tactical patterns in basketball: comparison of merge self-organising maps and dynamic controlled neural networks.

    Science.gov (United States)

    Kempe, Matthias; Grunz, Andreas; Memmert, Daniel

    2015-01-01

    The soaring amount of data, especially spatial-temporal data, recorded in recent years demands for advanced analysis methods. Neural networks derived from self-organizing maps established themselves as a useful tool to analyse static and temporal data. In this study, we applied the merge self-organising map (MSOM) to spatio-temporal data. To do so, we investigated the ability of MSOM's to analyse spatio-temporal data and compared its performance to the common dynamical controlled network (DyCoN) approach to analyse team sport position data. The position data of 10 players were recorded via the Ubisense tracking system during a basketball game. Furthermore, three different pre-selected plays were recorded for classification. Following data preparation, the different nets were trained with the data of the first half. The training success of both networks was evaluated by achieved entropy. The second half of the basketball game was presented to both nets for automatic classification. Both approaches were able to present the trained data extremely well and to detect the pre-selected plays correctly. In conclusion, MSOMs are a useful tool to analyse spatial-temporal data, especially in team sports. By their direct inclusion of different time length of tactical patterns, they open up new opportunities within team sports.

  11. A complete manual of amateur astronomy tools and techniques for astronomical observations

    CERN Document Server

    Sherrod, P Clay

    2003-01-01

    Concise, highly readable book discusses the selection, set-up, and maintenance of a telescope; amateur studies of the sun; lunar topography and occultations; and more. 124 figures. 26 halftones. 37 tables.

  12. Understanding and Supporting a Culture of Public Outreach in Amateur Organizations

    Science.gov (United States)

    Berendsen, M.; Ames, Z.; Figueiredo, C.; Storksdieck, M.; Stein, J.

    2010-08-01

    What types of resources can best support amateur science-based organizations who share their enthusiasm with the public? For several years the Astronomical Society of the Pacific (ASP) and Institute for Learning Innovation (ILI), have partnered to conduct research aimed at understanding the culture of public outreach conducted by astronomy clubs and their members. Through this research ILI has conducted studies that yielded three main conclusions: amateurs want educational tools, pedagogical skills, and club organizational support. With these ideas in mind the ASP began working on solutions to the amateurs needs in 2004. Since then the ASP has developed a number of solution approaches with extensive help from amateur astronomers around the country.

  13. Relationships between performance toward accomplishment and self-efficacy in amateur boxing.

    Science.gov (United States)

    Lane, Andrew M

    2002-06-01

    Combined ratings of magnitude and strength of self-efficacy by 59 20-yr.-old amateur boxers in a multiple regression were predicted only by Perceived Performance, i.e., their working toward successful performance.

  14. Relationship between 1RM back squat test results and explosive movements in professional basketball players

    Directory of Open Access Journals (Sweden)

    Saša Jakovljević

    2015-11-01

    Full Text Available The objectives of this study were related to the research of the relations between the abilities of professional basketball players in the performance of one repetition maximum (1RM back squat and explosive movements, such as 5, 10 and 20-metre running, and vertical jump; as well as the detection and comparison of these abilities between players who play on the outside and inside positions. The study involved 35 professional basketball players (22 outside and 13 inside who were selected as candidates for the national team of Bulgaria. Independent variables of muscular strength were obtained by applying the 1RM back squat test (142.06 ± 29.31 kg, and were normalized with respect to the body mass (1RM Squat/kg (1.51 ± 0.25 and by applying suitable allometric exponent (1RM SquatAl (6.86 ± 1.16. Dependent variables were obtained using two tests: 20-metre run (times registered at 5 and 10 metres and vertical jump (used to calculate the variable peak anaerobic power (PAPW. The results indicated that none of the variables of strength were significantly related to the speed performance, while moderate correlations occurred between the normalized strength variables (1RM Squat/kg and 1RM SquatAl and vertical jump (r = 0.310 and r = 0.308 / p < 0.05. The results obtained show greater correlation (r = 0.660 / p < 0.01 in the ability to deliver power when performing squat and mechanical work performed in vertical jumps. Outside and inside players were significantly different in three variables only: peak anaerobic power, body height and body weight.

  15. Defensive pressure affects basketball technical actions but not the time-motion variables

    Institute of Scientific and Technical Information of China (English)

    Jaime Sampaio; Roland Leser; Arnold Baca; Julio Calleja-Gonzalez; Diogo Coutinho; Bruno Gonçalves; Nuno Leite

    2016-01-01

    Background: Novel player tracking technologies can change the understanding of performance determinants in team sports by allowing to accurately measuring the activity demands. The aim of this study was to identify how the defensive pressure affects the time-motion variables and the technical actions in basketball. Methods: Twenty international male players (age:16.05 ± 2.09 years, weight:73.13 ± 8.10 kg, height:183.10 ± 5.88 cm) played two 10 min basketball quarters, where they used a man-to-man 1/4-court defense until the 4th min (F1/4), changed to man-to-man full court (FULL) for 3 min and, from the 7th to the 10th min returned to 1/4-court defense (S1/4). A computerized notational analysis was performed using Simi Scout and positional data were captured with the Ubisense Real Time Location System (mean sampling rate 3.74 ± 0.45 Hz per transmitter/player). Results: The time-motion variables presented similar results between defensive conditions, showing a total distance covered around 90 m/min. However, results suggested possible vertical jump impairments in S1/4 periods. There was more distance covered while jogging in the offensive court (38.15 ± 12.17 m/min offensive court vs. 32.94 ± 10.84 m/min defensive court, p<0.05) and more distance covered while running in the defensive court (16.41 ± 10.27 m/min offensive court vs. 19.56 ± 10.29 m/min defensive court, p<0.05). Conclusion: These results suggest how to improve task representativeness during specific conditioning or game-based training situations and also to help coaches’ strategic decisions during the games.

  16. A comparison of linear speed, closed-skill agility, and open-skill agility qualities between backcourt and frontcourt adult semiprofessional male basketball players.

    Science.gov (United States)

    Scanlan, Aaron T; Tucker, Patrick S; Dalbo, Vincent J

    2014-05-01

    The measurement of fitness qualities relevant to playing position is necessary to inform basketball coaching and conditioning staff of role-related differences in playing groups. To date, sprinting and agility performance have not been compared between playing positions in adult male basketball players. Therefore, the purpose of this study was to describe and compare linear speed, closed-skill agility, and open-skill agility qualities between backcourt (point guard and shooting guard positions) and frontcourt (small forward, power forward, and center positions) semiprofessional basketball players. Six backcourt (mean ± SD: age, 24.3 ± 7.9 years; stature, 183.4 ± 4.0 cm; body mass, 85.5 ± 12.3 kg; VO2max, 51.9 ± 4.8 ml·kg(-1)·min(-1)) and 6 frontcourt (mean ± SD: age, 27.5 ± 5.5 years; stature, 194.4 ± 7.1 cm; body mass, 109.4 ± 8.8 kg; VO2max, 47.1 ± 5.0 ml·kg(-1)·min(-1)) adult male basketball players completed 20-m sprint, closed-skill agility, and open-skill agility performance tests. Magnitude-based inferences revealed that backcourt players (5 m, 1.048 ± 0.027 seconds; 10 m, 1.778 ± 0.048 seconds; 20 m, 3.075 ± 0.121 seconds) possessed likely quicker linear sprint times than frontcourt players (5 m, 1.095 ± 0.085 seconds; 10 m, 1.872 ± 0.127 seconds; 20 m, 3.242 ± 0.221 seconds). Conversely, frontcourt players (1.665 ± 0.096 seconds) held possible superior closed-skill agility performance than backcourt players (1.613 ± 0.111 seconds). In addition, unclear positional differences were apparent for open-skill agility qualities. These findings indicate that linear speed and change of direction speed might be differently developed across playing positions. Furthermore, position-related functions might similarly depend on the aspects of open-skill agility performance across backcourt and frontcourt players. Basketball coaching and conditioning staff should consider the development of position-targeted training drills to improve speed, agility

  17. Group play

    DEFF Research Database (Denmark)

    Tychsen, Anders; Hitchens, Michael; Brolund, Thea

    2008-01-01

    of group dynamics, the influence of the fictional game characters and the comparative play experience between the two formats. The results indicate that group dynamics and the relationship between the players and their digital characters, are integral to the quality of the gaming experience in multiplayer......Role-playing games (RPGs) are a well-known game form, existing in a number of formats, including tabletop, live action, and various digital forms. Despite their popularity, empirical studies of these games are relatively rare. In particular there have been few examinations of the effects...... of the various formats used by RPGs on the gaming experience. This article presents the results of an empirical study, examining how multi-player tabletop RPGs are affected as they are ported to the digital medium. Issues examined include the use of disposition assessments to predict play experience, the effect...

  18. MARKETING IN AMATEUR SPORTS: HOW TO MARKET A FLOORBALL CLUB WITH LIMITED RESOURCES

    OpenAIRE

    Heino, Ville

    2015-01-01

    The purpose of this thesis is to identify the differences that appear in sports marketing in comparison to the more traditional fields of marketing, as well as the differences between marketing in amateur sports and professional sports. A Swedish amateur floorball team was consulted in order to gather information and to provide a practical example and development suggestions for the team’s marketing communications. The findings implicate that there are vast differences between sports marketin...

  19. Self-reported activity level and knee function in amateur football players

    DEFF Research Database (Denmark)

    Frobell, R B; Svensson, E; Göthrick, M

    2008-01-01

    ) amateur football players in 10 football clubs from each division below national level participated in the study. Self-reported Tegner Activity Scale, and the Knee injury and Osteoarthritis Outcome Score (KOOS) are the main outcome measures. Older age, female gender and lower level of competition (football...... is recommended. We suggest that self-reported Tegner Activity Scale scores should be adjusted for age, gender and level of competition. In amateur football players, KOOS scores do not need adjustment for age and gender....

  20. MARKETING IN AMATEUR SPORTS: HOW TO MARKET A FLOORBALL CLUB WITH LIMITED RESOURCES

    OpenAIRE

    Heino, Ville

    2015-01-01

    The purpose of this thesis is to identify the differences that appear in sports marketing in comparison to the more traditional fields of marketing, as well as the differences between marketing in amateur sports and professional sports. A Swedish amateur floorball team was consulted in order to gather information and to provide a practical example and development suggestions for the team’s marketing communications. The findings implicate that there are vast differences between sports marketin...

  1. Postphenomenological Play

    DEFF Research Database (Denmark)

    Hammar, Emil

    This paper aims to identify an understanding of digital games in virtual environments by using Don Ihde’s (1990) postphenomenological approach to how technology mediates the world to human beings in conjunction with Hans-Georg Gadamer’s (1993) notion of play . Through this tentatively proposed...... amalgamation of theories I point towards an alternative understanding of the relationship between play and game as not only dialectic, but also as socially and ethically relevant qua the design and implementation of the game as technology....

  2. Using testosterone and cortisol as biomarker for training individualization in elite basketball: a 4-year follow-up study.

    Science.gov (United States)

    Schelling, Xavi; Calleja-González, Julio; Torres-Ronda, Lorena; Terrados, Nicolás

    2015-02-01

    The purpose of this study was to determine the responses of testosterone and cortisol, with special reference to playing positions, playing time (PT), and phase of the season. We performed a follow-up study during 4 consecutive seasons to investigate the effects of PT, positional role, and phase of the season on anabolic-catabolic biomarkers (plasma total testosterone -TT- and cortisol -C-) on 20 professional male basketball players (27.0 ± 4.2 years; 24.4 ± 1.2 kg·m). First blood samples were collected right after the off-season period and considered as baseline. Samples were taken periodically every 4-6 weeks, always after a 24- to 36-hour break after the last game played. Statistical procedures were nonparametric mainly. Hormonal status was playing position-dependent, power forward (PF) showed the lowest TT values (median ± interquartile range [IQR]; PF: 18.1 ± 4.9; nmol·L), and small forwards showed the highest ones of cortisol (0.55 ± 0.118 μmol·L). Players who played between 13 and 25 minutes per game showed the highest values of TT (22.8 ± 6.9 nmol·L) and TT/C (47.1 ± 21.2). March and April showed the most catabolic or stressed hormonal state (low TT/C values and high ones of cortisol) and that is necessary to take into account according to PT (>25-minute per game) and specific playing position. Monitoring plasma TT and cortisol is recommended to prevent excessive stress caused by professional basketball season requirements.

  3. Validity and reliability of tests determining performance-related components of wheelchair basketball

    NARCIS (Netherlands)

    De Groot, Sonja; Balvers, Inge J. M.; Kouwenhoven, Sanne M.; Janssen, Thomas W. J.

    2012-01-01

    The purpose of this study was to investigate the reliability and validity of wheelchair basketball field tests. Nineteen wheelchair basketball players performed 10 test items twice to determine the reliability. The validity of the tests was assessed by relating the scores to the players'

  4. Validity and reliability of tests determining performance-related components of wheelchair basketball

    NARCIS (Netherlands)

    De Groot, Sonja; Balvers, Inge J. M.; Kouwenhoven, Sanne M.; Janssen, Thomas W. J.

    2012-01-01

    The purpose of this study was to investigate the reliability and validity of wheelchair basketball field tests. Nineteen wheelchair basketball players performed 10 test items twice to determine the reliability. The validity of the tests was assessed by relating the scores to the players' classificat

  5. Gaze Behavior in Basketball Shooting: Further Evidence for Online Visual Control

    Science.gov (United States)

    de Oliveira, Rita F.; Oudejans, Raoul R. D.; Beek, Peter J.

    2008-01-01

    The aim of the present study was to help resolve conflicting findings and interpretations regarding the visual control of basketball shooting by examining the looking behavior of 6 expert basketball players (3 with a low shooting style and 3 with a high shooting style) executing both free throws and jump shots. Based on previous findings, they…

  6. Identification the Relation between Active Basketball Classification Referees' Empathetic Tendencies and Their Problem Solving Abilities

    Science.gov (United States)

    Karaçam, Aydin; Pulur, Atilla

    2016-01-01

    This study aims to determine the relation between basketball classification referees' problem solving ability and empathetic tendencies. Research model of the study is relational screening model. Sampling of the study is constituted by 124 male and 18 female basketball classification referees who made active refereeing within Turkish Basketball…

  7. The Effects of Basketball Basic Skills Training on Gross Motor Skills Development of Female Children

    Science.gov (United States)

    Bayazit, Betul

    2015-01-01

    The purpose of this study was to investigate the effects of basketball basic skills training on gross motor skills development of female children in Turkey. For that purpose, 40 female children took part in the study voluntarily. Basketball basic skills test was used to improve the gross motor skills of the female children in the study. Also,…

  8. The Effects of Basketball Basic Skills Training on Gross Motor Skills Development of Female Children

    Science.gov (United States)

    Bayazit, Betul

    2015-01-01

    The purpose of this study was to investigate the effects of basketball basic skills training on gross motor skills development of female children in Turkey. For that purpose, 40 female children took part in the study voluntarily. Basketball basic skills test was used to improve the gross motor skills of the female children in the study. Also,…

  9. Demographic Profile and Athletic Identity of Traumatic Spinal Cord Injured Wheelchair Basketball Athletes in Greece

    Science.gov (United States)

    Vasiliadis, Angelo; Evaggelinou, Christina; Avourdiadou, Sevastia; Grekinis, Petros

    2010-01-01

    An epidemiological study conducted across the country of Greece was conducted in order to determine the profile and the athletic identity of spinal cord injured (SCI) wheelchair basketball athletes who participated to the 13th Greek Wheelchair Basketball Championship and Cup. The Disability Sport Participation questionnaire was used for data…

  10. Mechanisms of anterior cruciate ligament injury in basketball - Video analysis of 39 cases

    NARCIS (Netherlands)

    Krosshaug, Tron; Nakamae, Atsuo; Boden, Barry P.; Engebretsen, Lars; Smith, Gerald; Slauterbeck, James R.; Hewett, Timothy E.; Bahr, Roald

    2007-01-01

    Background: The mechanisms of anterior cruciate ligament injury in basketball are not well defined. Purpose: To describe the mechanisms of anterior cruciate ligament injury in basketball based on videos of injury situations. Study Design: Case series; Level of evidence, 4. Methods: Six international

  11. Basketball rules and the influence of their changes on the game

    OpenAIRE

    Lamačová, Eva

    2010-01-01

    The topic of this work is basketball, its evolution and its place in the world. This development is inherently put together with the rules and their changes. Changes happens in this sport quite often. Research describes the influence of selected changes in rules on the game, namely the direction in which is basketball now developed, thanks to its changes in the rules.

  12. Mechanisms of anterior cruciate ligament injury in basketball - Video analysis of 39 cases

    NARCIS (Netherlands)

    Krosshaug, Tron; Nakamae, Atsuo; Boden, Barry P.; Engebretsen, Lars; Smith, Gerald; Slauterbeck, James R.; Hewett, Timothy E.; Bahr, Roald

    2007-01-01

    Background: The mechanisms of anterior cruciate ligament injury in basketball are not well defined. Purpose: To describe the mechanisms of anterior cruciate ligament injury in basketball based on videos of injury situations. Study Design: Case series; Level of evidence, 4. Methods: Six international

  13. Validity and reliability of tests determining performance-related components of wheelchair basketball

    NARCIS (Netherlands)

    De Groot, Sonja; Balvers, Inge J. M.; Kouwenhoven, Sanne M.; Janssen, Thomas W. J.

    2012-01-01

    The purpose of this study was to investigate the reliability and validity of wheelchair basketball field tests. Nineteen wheelchair basketball players performed 10 test items twice to determine the reliability. The validity of the tests was assessed by relating the scores to the players' classificat

  14. We Killed Them: Trials and Tribulations of a Special Olympic Basketball Team.

    Science.gov (United States)

    Jones, Ron

    1980-01-01

    The coach of a basketball team recounts the experiences encountered by his team in the California Special Olympics Basketball Tournament. Three days in the team's life are traced from the time the team boards the plane to Los Angeles, through initial defeat, to victory in the fourth game and winning third place medals. (SB)

  15. El Rugby amateur en la Inglaterra del Siglo XIX ¿Filosofía o manipulación social? = The Amateur Rugby in England in S. XIX: Philosophy or Social Manipulation?

    Directory of Open Access Journals (Sweden)

    Javier Gálvez González

    2013-10-01

    players were not paid to play but by work, whether real or fictitious, which gives the defending club. In that year, ended the anachronism of a late twentieth century sport governed by rules of Victorian England. How did he get to this situation? Dunning and Sheard argue that the phenomenon of amateurism in rugby in the nineteenth century was a complex instrument of social differentiation and must be analyzed from a historical standpoint and sociopolitical. In this line, Bádenas states that the British aristocracy in S. XIX used the growing interest in ancient Greek culture to assign values to the sport practiced at that time so that was conceptualized as a recreational activity characteristic of a social elite. To achieve this, extolled the values of a Greek amateur sports (which did not exist as such a concept and enhanced those texts criticizing the professionalization of sports and its impact on sport. British theorists, as Mahaffy attributed to the ancient Greek sport values that matched the prototype athlete gentlemen of the Victorian era. 

  16. Physical fitness, adiposity and testosterone concentrations are associated to playing position in professional basketballers.

    Science.gov (United States)

    Ponce-González, Jesús Gustavo; Olmedillas, Hugo; Calleja-González, Julio; Guerra, Borja; Sanchis-Moysi, Joaquín

    2015-06-01

    Los efectos de jugar al baloncesto sobre las concentraciones basales de testosterona y cortisol, así como su asociación a la composición corporal y el rendimiento físico aún están por determinarse. Objetivo: el principal objetivo de este estudio fue determinar los efectos de la posición de juego sobre la condición física, el porcentaje de grasa coporal y el perfil hormonal en jugadores de baloncesto profesionales (BP). Metodología: la capacidad de salto (SJ, CMJ y ABK), la velocidad en 30 m y el VO2max en tapiz rodante se midió en 12 varones BP (24,1 años) pertenecientes a la primera división de la liga de España (ACB). El porcentaje de grasa corporal se determinó a partir de la antropometría, y las concentraciones de hemoglobina, glucosa, testosterona y cortisol se midieron a partir de muestras de sangre en ayunas. Los baloncestistas se dividieron en tres grupos en función de las posiciones de juego: bases (GU), aleros (FW) y pivots (CE). Resultados: GU tuvo mayor porcentaje de grasa corporal (% GC) que CE (p tipos de saltos (p < 0,05) y logró mayor potencia instantánea máxima que GU y FW en el SJ y ABK (p < 0,05). Los pivots tenían más testosterona plasmática que los bases (p < 0,05). Todos los grupos mostraron similar VO2 máx. Conclusión: la posición de pivots fue asociada a una menor adiposidad y a una mayor capacidad de salto en comparación con los bases. Todas las posiciones de juego indujeron un efecto similar sobre la potencia aeróbica.

  17. Clay Play

    Science.gov (United States)

    Rogers, Liz; Steffan, Dana

    2009-01-01

    This article describes how to use clay as a potential material for young children to explore. As teachers, the authors find that their dialogue about the potential of clay as a learning medium raises many questions: (1) What makes clay so enticing? (2) Why are teachers noticing different play and conversation around the clay table as compared to…

  18. The preparation for the year main competition teams in basketball with hearing impairments with innovative technologies

    Directory of Open Access Journals (Sweden)

    Sobko I.N.

    2014-10-01

    Full Text Available Purpose : develop and prove experimentally comprehensive training program on the Ukrainian national team basketball with hearing impairment in the annual cycle for the major competitions. Material : The study involved 12 basketball hearing impaired 20-25 years old - female players team of Ukraine on basketball. Also analyzed the test results and competitive activity 12 basketball players with hearing impairments - Lithuanian team players. Results : We showed the need for a qualitative change in the training process through the development and application of innovative technologies. This allows a greater level of communication between the coach and athletes to intensify training process. Developed and experimentally substantiated comprehensive training program for the Ukrainian national team. In technical training device used light. This increased mobility, agility, activity and intensity workouts. In tactical training improved situational and planned change tactical drawing game using copyright protection of video tutorials with animated illustrations. Conclusions : A positive impact of the developed system for basketball training result in major competitions.

  19. Explosive strength training improves speed and agility in wheelchair basketball athletes

    Directory of Open Access Journals (Sweden)

    Tarik Ozmen

    2014-04-01

    Full Text Available INTRODUCTION: Wheelchair basketball is a paralympic sport characterized by intermittent high-intensity activities that require explosive strength and speed. OBJECTIVE: To investigate the effect of explosive strength training on speed and agility performance in wheelchair basketball players. METHODS: Ten male wheelchair basketball players (Mage=31±4 yrs were divided into two groups [i.e. explosive strength training (ES; control (CN] based on International Wheelchair Basketball Federation (IWBF classification scores. The ES group underwent 6-weeks of training, twice weekly, at 50% 1RM, 10-12 repetitions and 3-4 sets in addition to routine training. Effects of training were measured by the 20 m sprint test and Illinois agility test. RESULTS: The ES group, showed significantly higher increases in speed and agility performance (p ≤ .05. CONCLUSION: A short-duration (i.e. 6-week explosive strength training programme in wheelchair basketball athletes results in significant improvements in sprint and agility performance.

  20. ‘The’ pathway towards the elite level in Dutch basketball: A multidimensional and longitudinal study on the development of talented youth basketball players

    OpenAIRE

    te Wierike, Sanne Cornelia Maria

    2016-01-01

    Veel jonge talentvolle basketballers hebben één doel voor ogen; de top halen in hun sport. Hoe de ontwikkeling van jonge speler tot aan volwassen basketballer verloopt, is onderzocht in het promotieonderzoek van Sanne te Wierike. Dit onderzoek is uitgevoerd bij Bewegingswetenschappen (UMCG, Rijksuniversiteit Groningen). In samenwerking met het Regionaal Trainingscentrum Noord zijn 99 spelers (13 - 19 jaar) van deze jeugdopleiding vijf seizoenen lang gevolgd waarbij verschillende kenmerken zij...

  1. The Amateur Astronomer's Guide to the Deep-Sky Catalogs

    CERN Document Server

    Cavin, Jerry D

    2012-01-01

    All of us familiar with astronomy know of Charles Messier and his early work on creating a catalog of celestial objects. Did you know that Messier was compiling a list of objects to avoid when searching the skies? He was a comet hunter, and he wanted to not mistake other things for comets. Other lists and catalogs followed this, and many, including Messier's, have become popular with amateur astronomers who see it as a challenge to find everything on the list or as a guide on what to see when they look through their telescopes or binoculars. In this "catalog of catalogs," the author introduces the figures behind the most famous of the star catalogs and includes the catalog listings as well. Thus here, all in one book, is your complete guide to the heavenly bodies - including constellations, galaxies, nebulae, supernova remnants, and much more - that most people seek to see when they observe the night sky. Here are enough challenges for a lifetime of exciting viewing!

  2. Atlantoaxial instability after a header in an amateur soccer player.

    Science.gov (United States)

    Werle, Stephan; Nahleh, Kais Abu; Boehm, Heinrich

    2015-03-01

    Case report and literature review. To report a unique case of atlantoaxial instability after a header in a 37-year-old amateur soccer player and to discuss the injury pattern in relation to the impact of heading. Although there is potential for cervical spine injuries, the rates in soccer are low compared with other contact or even noncontact sports. No cases of acute post-traumatic atlantoaxial instability after heading have ever been reported in a MEDLINE-listed article. A 37-year-old male soccer player experienced acute upper neck pain and transient quadriplegia after heading a long-distance ball on 2 occasions during a match. Imaging revealed atlantoaxial instability. Persistent neurological symptoms on conservative treatment led to his referral to our department. The considerable instability required surgical intervention. Transarticular C1-C2 fixation and posterior fusion with structural iliac crest grafting were performed. The procedure immediately led to complete relief of the neurological symptoms. After an uneventful postoperative recovery, follow-up at 9 months revealed solid fusion. The patient remained symptom free. Heading the ball in soccer can potentially lead to atlantoaxial instability. Ligamentous damage can theoretically be caused by anteriorly directed and rotational overload. However, the causative mechanism remains unclear. Diagnostic workup should consider dynamic imaging in players with transient neurological symptoms after minor trauma to the cervical spine. N/A.

  3. Requests for medical assistance during an amateur road cycling race.

    Science.gov (United States)

    Roi, Giulio Sergio; Tinti, Riccardo

    2014-12-01

    Requests for medical assistance during an amateur road cycling race, which included 56,700 cyclists over 6 consecutive races between 2006 and 2011, were analysed with the aim of improving injury prevention and medical coverage. Medical assistance was requested by a small percentage of participants (1.7 ± 1.0%), but the actual number seeking assistance was quite high due to the large total number of participants (162 ± 51). 0.17% of all participants did not finish the race for medical reasons. No fatal injuries were recorded. The incidence rate of requests for medical assistance was 0.108/1,000 km, and the incidence of withdrawal was 0.011/1,000 km of the race. Of all medical requests, those due to direct trauma caused by falls accounted for 63%, requests for overload injuries accounted for 4% and requests for non-traumatic complaints accounted for 22% of the total; 11% of requests were not classified. Weather conditions may affect the type and the incidence of requests: requests for traumatic injuries increase if raining; requests for heat-related illnesses if hot. Prevention techniques are aimed at guaranteeing and promoting health and safety and should be implemented by both the race organisers and the cyclists.

  4. Transient hypogonadotropic hypogonadism in an amateur kickboxer after head trauma.

    Science.gov (United States)

    Tanriverdi, F; Unluhizarci, K; Selcuklu, A; Casanueva, F F; Kelestimur, F

    2007-02-01

    Traumatic brain injury (TBI) is a frequent health problem and increased prevalence of neurendocrine dysfunction in patients with TBI has been reported. Sports injuries and particularly boxing may result in pituitary dysfunction. However, transient hypogonadotropic hypogonadism after an acute head trauma due to boxing and/or kickboxing has not been defined yet. We describe the case of a 20-yr-old male amateur kickboxer who was admitted to hospital complaining of decreased libido and impotence 2 weeks after an intensive bout. Basal hormone levels were compatible with mild hyperprolactinemia and hypogonadotpopic hypogonadism. GH axis was evaluated by GHRH+GHRP-6 test and peak GH level was within normal reference range. Three months later his complaints improved and abnormalities in basal hormone levels normalized. He was also re-evaluated 9 months after the first evaluation; basal hormone levels were within normal ranges and he had no complaints. In conclusion acute head trauma due to kickboxing may cause transient gonadotropin deficiency. Therefore, screening the pituitary functions of sportsmen dealing with combative sports is crucial.

  5. Astrophysics is easy! an introduction for the amateur astronomer

    CERN Document Server

    Inglis, Michael

    2015-01-01

    Astrophysics is often –with some justification – regarded as incomprehensible without the use of higher mathematics. Consequently, many amateur astronomers miss out on some of the most fascinating aspects of the subject. Astrophysics Is Easy! cuts through the difficult mathematics and explains the basics of astrophysics in accessible terms. Using nothing more than plain arithmetic and simple examples, the workings of the universe are outlined in a straightforward yet detailed and easy-to-grasp manner.   The original edition of the book was written over eight years ago, and in that time, advances in observational astronomy have led to new and significant changes to the theories of astrophysics. The new theories will be reflected in both the new and expanded chapters.   A unique aspect of this book is that, for each topic under discussion, an observing list is included so that observers can actually see for themselves the concepts presented –stars of the spectral sequence, nebulae, galaxies, even black ...

  6. An interprofessional health assessment program in rural amateur sport.

    Science.gov (United States)

    Grace, Sandra; Coutts, Rosanne

    2017-01-01

    Effective interprofessional learning (IPL) in multisectoral collaborations such as those linking health services within communities can provide an authentic experience for students and also appears to be the most effective way to achieve health changes in targeted population groups. The aim of this study was to facilitate the IPL of students at a rural university in a multisectoral health assessment programme and to promote health in players of rural amateur sport. Two rural rugby league teams took part in three pre-season health assessments conducted by general medical practitioners, practice nurses, and nursing, osteopathy, and exercise science students. The Readiness for Interprofessional Learning Scale questionnaire and a series of focus groups were used to evaluate participants' experiences of the programme. Results indicated that students saw the benefits for patients and 93% valued the opportunity to improve interprofessional communication, problem-solving and team skills. Some students felt they needed to learn more about their own professional role before learning about others, and instances of stereotyping were identified. The programme also enabled early detection of potential health risks and referral for medical care, management of musculoskeletal conditions, and health promotion. These health assessments would be readily transferred to other multisectoral sporting settings.

  7. Tool-related injuries among amateur and professional woodworkers.

    Science.gov (United States)

    Becker, T M; Trinkaus, K M; Buckley, D I

    1996-10-01

    Although woodworking is a popular hobby and the woodworking industry employs thousands of workers nationwide, few studies have examined injuries associated with this activity, especially in relation to woodshop tool use. We conducted a survey of amateur and professional woodworkers (n = 283) in New Mexico to determine histories and rates of tool-specific injuries. Injuries associated with woodshop tool use were reported by 64% of all respondents. Hammers, chisels/gouges, and table saws were most frequently reported in association with injuries, although the highest tool-specific injury rates were associated with use of jointer-planers (4.9 injuries per 1000 person-hours of use), chisels/ gouges (3.3 injuries), and drill presses (3.1 injuries). One third reported tool use-associated injuries that were severe enough to require professional medical attention; 5% of all respondents suffered partial amputations. Courses in the safe use of shop tools may help to reduce rates of injuries among woodworkers.

  8. Amateur boxing: activity profile of winners and losers.

    Science.gov (United States)

    Davis, Philip; Wittekind, Anna; Beneke, Ralph

    2013-01-01

    An activity profile of competitive 3 × 2-min novice-level amateur boxing was created based on video footage and postbout blood [La] in 32 male boxers (mean ± SD) age 19.3 ± 1.4 y, body mass 62.6 ± 4.1 kg. Winners landed 18 ± 11 more punches than losers by applying more lead-hand punches in round 1 (34.2 ± 10.9 vs 26.5 ± 9.4), total punches to the head (121.3 ± 10.2 vs 96.0 ± 9.8), and block and counterpunch combinations (2.8 ± 1.1 vs. 0.1 ± 0.2) over all 3 rounds and punching combinations (44.3 ± 6.4 vs 28.8 ± 6.7) in rounds 1 and 3 (all P < .05). In 16 boxers, peak postbout blood [La] was 11.8 ± 1.6 mmol/L irrespective of winning or losing. The results suggest that landing punches requires the ability to maintain a high frequency of attacking movements, in particular the lead-hand straight punch to the head together with punching combinations. Defensive movements must initiate a counterattack. Postbout blood [La] suggests that boxers must be able to tolerate a lactate production rate of 1.8 mmol · L-1 · min-1 and maintain skillful techniques at a sufficient activity rate.

  9. In the grade university the determinatıon of female and male basketball players nutrition knowledge and habits

    Directory of Open Access Journals (Sweden)

    Emin Süel

    2009-08-01

    Full Text Available The purpose of the study done was to determine the nutritional knowledge and habits of male and famale basketball players, and also find out if there is difference between knowledge of nutrition and habits among male and famale basketball players. 50 famale basketball players and 62 male basketball players in total 112 subjects playing in university basketball teams were partıcıpated in this study. İt’s determined that the average age of the subjects in famales is 21 and in males it is 21.7. ıt’s also determined that the avarage height’s in famales is 168.38, in males 186.55 the average weight in famales is 57.408, in males is 79.03. The questionnalce including 40 questions were applied to subjects in university group contests. The results of the questianneire were evaluated by using the distribution of pencentages. When their knowledge of nutrition is compared, İt’s found out that famales have 25.9 % percentage, males have 36.6 % knowledge. Whether the subjest’s cares for their nutrition or not famales of 16.1 percentage (% answers that they care and 24.1 percentage (% answers this question “sometimes” on the other hand in males 27.7 percentage (% cares and 25 % answers this question with “sometimes” The result of male’s caring more careful when compared with famales about nutrition is found out. When the subjects number of meals are fixied it is found out that % 34.8 of famales eat 3 (times medis in a day in males this percentage is 44.6 (% 44.6 of males eat 3 times in a day İt’s emerged that generally both famale and male basketballers eat 3 times (meals in a day, and observed there isnt a noticable difference between. Whether the subject’s have breakfast or not it is fond out that in famales %13.4’s answer is yes % 22.3’s is “sometimes” on the other and for males these values change as % 18.8 subject’s answer is “yes” and % 28.6’s is “sometimes” It’s concluded that the male players g

  10. Group play

    DEFF Research Database (Denmark)

    Tychsen, Anders; Hitchens, Michael; Brolund, Thea

    2008-01-01

    Role-playing games (RPGs) are a well-known game form, existing in a number of formats, including tabletop, live action, and various digital forms. Despite their popularity, empirical studies of these games are relatively rare. In particular there have been few examinations of the effects of the v......Role-playing games (RPGs) are a well-known game form, existing in a number of formats, including tabletop, live action, and various digital forms. Despite their popularity, empirical studies of these games are relatively rare. In particular there have been few examinations of the effects...... of the various formats used by RPGs on the gaming experience. This article presents the results of an empirical study, examining how multi-player tabletop RPGs are affected as they are ported to the digital medium. Issues examined include the use of disposition assessments to predict play experience, the effect...... RPGs, with the first being of greater importance to digital games and the latter to the tabletop version....

  11. The relationship between perceived coaching behaviors, goal orientation, team cohesion, perceived motivational climate ve collective efficacy among basketball players before and after the tournament

    Directory of Open Access Journals (Sweden)

    Turhan Toros

    2010-12-01

    Full Text Available This paper aims to examine the perceived coaching behaviors, the goal orientation, the team cohesion, the perceived motivational climate and the relationship of the collective efficacy among basketball players before and after the tournament. In this research, the young male basketball players who played in the young male basketball teams in 2005-2006 league season and moreover, the ones who took parts in the teams participated into the Turkish National Championship were included. The only 12 teams(144 players of the total 16 teams who participated into the Turkish National Championship were included. In collecting the data, Leadership for Sport Scale-LSS, Task and Ego Orientation in Sport Questionnaire-TEOSQ, Group Environment Questionnaire-GEQ, Perceived Motivational Climate in Sport Questionnaire- PMCSQ and Collective Efficacy Scale-CES were used. The data were calculated with The Analysis of the Descriptive Statistical Techiques, Partial, Part and Pearson Correlation Analysis. Results revealed significant relationship with task orientation and autocratic (r=.195;p<.05 social support (r=.664;p<.05 before the Turkish National Championship. revealed significant relationship with mastery climate and training and instruction (r=.174; p<.05 after the Turkish National Championship. In conclusion; There is a relation between over the course of a season, the pre-tournament and after the tournament.

  12. Study on the strength training of young basketball player%青少年篮球运动员力量训练的研究

    Institute of Scientific and Technical Information of China (English)

    覃健军

    2013-01-01

    通过文献资料法、实验法等研究方法,对河南省体校25名青少年男子篮球运动员进行力量分期训练对比研究。结果表明:力量训练在篮球专修学生整个训练中占有重要的地位。发展力量训练要遵循全面发展、共同作用和系统训练原则。对篮球运动员一般力量、专门力量和专项力量有一定的作用。%By the methods of literature study, experimental method and so on, to study on the strength analysis of 25 young basketball athletes in sports school of Henan Province. The results show that:the strength training plays an important role in the training of the basketball specialized students. Strength training should follow the development of all-round development, cooperation and systematic training principle. It has a certain role on the general strength, specific strength and specific strength of basketball player.

  13. Effects of sports injury prevention training on the biomechanical risk factors of anterior cruciate ligament injury in high school female basketball players.

    Science.gov (United States)

    Lim, Bee-Oh; Lee, Yong Seuk; Kim, Jin Goo; An, Keun Ok; Yoo, Jin; Kwon, Young Hoo

    2009-09-01

    Female athletes have a higher risk of anterior cruciate ligament injury than their male counterparts who play at similar levels in sports involving pivoting and landing. The competitive female basketball players who participated in a sports injury prevention training program would show better muscle strength and flexibility and improved biomechanical properties associated with anterior cruciate ligament injury than during the pretraining period and than posttraining parameters in a control group. Controlled laboratory study. A total of 22 high school female basketball players were recruited and randomly divided into 2 groups (the experimental group and the control group, 11 participants each). The experimental group was instructed in the 6 parts of the sports injury prevention training program and performed it during the first 20 minutes of team practice for the next 8 weeks, while the control group performed their regular training program. Both groups were tested with a rebound-jump task before and after the 8-week period. A total of 21 reflective markers were placed in preassigned positions. In this controlled laboratory study, a 2-way analysis of variance (2 x 2) experimental design was used for the statistical analysis (P sports injury prevention training program improved the strength and flexibility of the competitive female basketball players tested and biomechanical properties associated with anterior cruciate ligament injury as compared with pretraining parameters and with posttraining parameters in the control group. This injury prevention program could potentially modify the flexibility, strength, and biomechanical properties associated with ACL injury and lower the athlete's risk for injury.

  14. Six weeks of β-alanine supplementation did not enhance repeated-sprint ability or technical performances in young elite basketball players.

    Science.gov (United States)

    Milioni, Fabio; Redkva, Paulo E; Barbieri, Fabio A; Zagatto, Alessandro M

    2017-06-01

    Supplementation with β-alanine plays an important role as a precursor of carnosine, the most effective intramuscular buffer, and has been seen as a potential ergogenic aid, especially for high-intensity modalities such as basketball. Thus, the aim of the present study was to investigate the effects of 6 weeks of β-alanine supplementation on repeated sprint ability (RSA) and technical performances in young elite Brazilian basketball players. In total, 27 young basketball players (17±1 years) were randomized into a β-alanine group (Gβ - 6.4 g day(-1) of β-alanine) and a placebo group (GP - 6.4 g day(-1) of dextrose). Before and after the supplementation period the athletes performed a RSA test composed of ten 30 m sprints with two 180° changes of direction interspaced by 30 s of recovery. During the recovery period (i.e., after the sprints) the athletes performed a countermovement jump (CMJ) and a set of three free throws. After 48 h they performed a Yo-Yo intermittent recovery test level 1 (Yo-Yo IR1). Both groups increased the distance covered in the Yo-Yo IR1 after the supplementation period ( p = 0.001). On the other hand, both groups presented impairment in RSA time-performance (total time, best time, and mean time, p ≤ 0.04), while no significant changes were observed for technical task performances (i.e., CMJ and free throws) ( p ≥ 0.07). No between-group interactions were observed for any variable measured ( p ≥ 0.31). Thus, 6 weeks of β-alanine supplementation did not improve RSA or technical performances in young elite basketball players.

  15. Performance and Metabolic Demand of a New Repeated-Sprint Ability Test in Basketball Players: Does the Number of Changes of Direction Matter?

    Science.gov (United States)

    Zagatto, Alessandro M; Ardigò, Luca P; Barbieri, Fabio A; Milioni, Fabio; Dello Iacono, Antonio; Camargo, Bruno H F; Padulo, Johnny

    2017-09-01

    Zagatto, AM, Ardigò, LP, Barbieri, FA, Milioni, F, Dello Iacono, A, Camargo, BHF, and Padulo, J. Performance and metabolic demand of a new repeated-sprint ability test in basketball players: does the number of changes of direction matter? J Strength Cond Res 31(9): 2438-2446, 2017-This study compared 2 repeated-sprint ability (RSA) tests in basketball players. Both tests included 10 × 30-m sprints, with the difference that the previously validated test (RSA2COD) featured 2 changes of direction (COD) per sprint, whereas the experimental test (RSA5COD) featured 5 CODs per sprint. Test performances and metabolic demands were specifically assessed in 20 basketball players. First, RSA5COD test-retest reliability was investigated. Then, RSA2COD, RSA5COD sprint times, peak speeds, oxygen uptake (V[Combining Dot Above]O2) and posttest blood lactate concentration [La] were measured. The RSA5COD results showed to be reliable. RSA2COD performance resulted better than the RSA5COD version (p sprint times and higher peak speeds. Over sprints, the tests did not differ from each other in terms of V[Combining Dot Above]O2 (p > 0.05). Over whole bout, the RSA2COD was more demanding than the RSA5COD, considering overall metabolic power requirement (i.e., VO2-driven + [La]-driven components). Given that RSA5COD (a) mimics real game-play as sprint distance and action change frequency/direction and (b) has the same metabolic expenditure per task completion as metabolic cost, RSA5COD is a valuable option for players and coaches for training basketball-specific agility and assessing bioenergetic demands.

  16. Research on Effective Route of Promoting Teaching Quality of Basketball Elective Course in Higher Vocational Colleges%提升高职院校篮球选修课教学质量的有效途径研究

    Institute of Scientific and Technical Information of China (English)

    唐莺

    2012-01-01

    As elective course, basketball teaching curriculum in higher vocational colleges has not been given due attention for a long time. Teaching work as a mere formality happens, and the corresponding teaching evaluation system has not been perfect. It is more common situation to play basketball just playing basketball. Under the background of State Education Commission for active implementation of quality education, the basketball teaching quality in higher vocational colleges needs to be improved. This paper, from the existing problems of basketball curriculum teaching, makes discussion on method and route of improving teaching quality.%高职院校中的篮球教学课程作为选修课,长期以来一直未得到应有的重视,教学工作中走过场的情况时有发生,相应的教学评估系统也没有得到完善,上篮球课等于玩篮球的情况比较常见。在国家教委积极推行素质教育的大背景下,高职院校中的篮球教学质量也亟须提高。本文从高职院校篮球课程教学中存在的问题入手,对提高其教学质量的途径和方法进行简单的探讨。

  17. Playing Possum

    Directory of Open Access Journals (Sweden)

    Enrico Euli

    2016-07-01

    Full Text Available Our society is drenched in the catastrophe; where the growth of financial crisis, environmental cataclysm and militarization represents its gaudiest and mortifying phenomena. Humans struggle with depression, sense of impotence, anguish towards a future considered a threat.  A possibility to keep us alive can be represented by the enhancement of our ability in ‘playing Possum’, an exercise of desisting and renitence: to firmly say ‘no’. To say no to a world that proposes just one way of being and living free, that imposes as the only unavoidable possible destiny.

  18. Playful Technology

    DEFF Research Database (Denmark)

    Johansen, Stine Liv; Eriksson, Eva

    2013-01-01

    In this paper, the design of future services for children in Danish public libraries is discussed, in the light of new challenges and opportunities in relation to new media and technologies. The Danish government has over the last few years initiated and described a range of initiatives regarding...... in the library, the changing role of the librarians and the library space. We argue that intertwining traditional library services with new media forms and engaging play is the core challenge for future design in physical public libraries, but also that it is through new media and technology that new...

  19. Playful Technology

    DEFF Research Database (Denmark)

    Johansen, Stine Liv; Eriksson, Eva

    2013-01-01

    in the library, the changing role of the librarians and the library space. We argue that intertwining traditional library services with new media forms and engaging play is the core challenge for future design in physical public libraries, but also that it is through new media and technology that new......In this paper, the design of future services for children in Danish public libraries is discussed, in the light of new challenges and opportunities in relation to new media and technologies. The Danish government has over the last few years initiated and described a range of initiatives regarding...

  20. A Study on the Causes of Basketball Harm on Ankle Joint and Its Prevention%篮球运动对人体踝关节损伤的原因及预防的研究

    Institute of Scientific and Technical Information of China (English)

    李晓峰

    2012-01-01

      篮球运动作为高校体育教育专业的主干课程之一,在体育教育专业课程体系中占有重要地位。通过对我院篮球普修课上人体易伤部位的踝关节进行了调查分析的探究,试找出损伤原因。最大限度地减少和避免篮球普修课上篮球运动中损伤的发生,为今后的教学、训练和体育锻炼提供科学的理论依据。%  Basketball as one of the main course of physical education plays an important role in the physical education curriculum system. Through the easy parts of the ankle injury hospital basketball general course on human investigation and analysis to explore, to try to find out the cause of the injury. Minimize and avoid the occurrence of general basketball course of injury in basketball, and provide scientific and theoretical basis of teaching, training and sports training.

  1. Perceived Sources of Team Confidence in Soccer and Basketball.

    Science.gov (United States)

    Fransen, Katrien; Vanbeselaere, Norbert; De Cuyper, Bert; Vande Broek, Gert; Boen, Filip

    2015-07-01

    Although it is generally accepted that team confidence is beneficial for optimal team functioning and performance, little is known about the predictors of team confidence. The present study was aimed to shed light on the precursors of both high and low team confidence in two different sports. A distinction is made between sources of process-oriented team confidence (i.e., collective efficacy) and sources of outcome-oriented team confidence (i.e., team outcome confidence), which have often been confounded in previous research. In a first step, two qualitative studies were conducted to identify all possible sources of team confidence in basketball and in soccer. In a second step, three quantitative studies were conducted to further investigate the sources of team outcome confidence in soccer (N = 1028) and in basketball (N = 867), and the sources of collective efficacy in basketball (N = 825). Players perceived high-quality performance as the most important factor for their team outcome confidence. With regard to collective efficacy, team enthusiasm was perceived as most predictive determinant. Positive coaching emerged as second most decisive factor for both types of team confidence. In contrast, negative communication and expression by the players or the coach was perceived as the most decisive predictor of low levels of team confidence. At item level, all studies pointed to the importance of team confidence expression by the athlete leaders (i.e., leader figures within the team) and the coach. The present manuscript sheds light on the precursors of high and low levels of team confidence. Athlete leaders and the coach emerged as key triggers of both upward and downward spirals of team confidence, thereby contaminating all team members.

  2. Playing cards.

    Science.gov (United States)

    1977-01-01

    Mrs. Zahia Marzouk, vice-president of the Alexandria Family Planning Association and a living legend of Egyptian family planning, does not believe in talking about problems. She is far too busy learning from people and teaching them. Her latest brainstorm is a set of playing cards designed to help girls and women to read and learn about family planning at the same time. The 5 packs of cards, representing familiar words and sounds, and each with a family planning joker, took Mrs. Marzouk 6 months to design and paint by hand. They have now been printed, packed into packets provided by UNICEF, and distributed to some 2000 literacy groups in factories and family planning clinics. Each woman who succeeds in learning to read is encouraged to teach 4 others. They then go to the family planning clinic to be examined and gain a certificate. For the teacher who has made them proficient there is a special prize. Girls at El Brinth village outside Alexandria are pictured playing cards at the family planning center where they are learning various skills including how to read.

  3. Can Timeouts Change the Outcome of Basketball Games?

    CERN Document Server

    Saavedra, Serguei; Bagrow, James P

    2012-01-01

    In basketball, timeouts are believed to reverse the momentum of a game. However, here we show timeouts have no significant effect on the final outcomes of games. Moreover, we find that the timeout factor only appears to reinforce the game of dominant teams, meaning that only the most successful teams can find any positive benefit. We find no association with team payrolls, suggesting that richer teams are not particularly better at capitalizing on timeouts. Our findings support that strategic breaks have little impact on workplace performance and productivity.

  4. Physical rehabilitation athletes for prevention of fatigue in women's basketball

    Directory of Open Access Journals (Sweden)

    Osipov Vitalij Nikolaevich

    2011-10-01

    Full Text Available The results of research on the impact of physical rehabilitation for adaptive systems of the body athletes, especially the functioning of which were determined by the parameters of central hemodynamics and physical performance for the step-test PWC170. The study attended by 17 basketball Premier League at the age of 18-25 years. In developed and offered by us Rehabilitation Complex includes the following remedial means: special breathing exercises, yoga elements of gymnastics, Motivational, different types of sports massage and hidroprotsedury, which contributed to more effective recovery of athletes and improve their physical performance.

  5. Basketball in physical education of non sport universities

    Directory of Open Access Journals (Sweden)

    Zaschuk S.G.

    2010-05-01

    Full Text Available A health of students of unathletic institutes of higher level is studied. It is rotined that over modernization of the system of physical education brought to considerable reduction of audience employments on a physical culture. Connection is considered between the low level of health of student young people and reduction of audience employments on physical education. Insufficient motivation is marked to independent employments by physical exercises, decline of motive activity of students. Efficiency of application of basket-ball is grounded in the process of physical education of students.

  6. Offensive tactical thinking level of wheelchair basketball players in Arab countries.

    Science.gov (United States)

    Hindawi, Omar S; Orabi, Samira; Al Arjan, Jafar; Judge, Lawrence W; Cottingham, Michael; Bellar, David Michael

    2013-01-01

    The purpose of this study was to assess the appropriateness of offensive tactical decision-making of Arab basketball players, and to determine if there are differences in the appropriateness of offensive tactical decision-making within the various disability classifications of Arab basketball players. A twenty-question survey was formulated to assess decision-making in offensive tactical situations in wheelchair basketball players. Participants in the present study were 108 athletes from 10 Arab national teams participating in wheelchair basketball. The mean offensive tactical thinking level of wheelchair basketball players in the 20 different situations in the Arab countries ranged between 1.38-2.84, and the standard deviations for these 20 means ranged from 0.41 to 0.90. The total mean of all tactical situations was 2.33, which is moderate thinking level. The influence of the disability classification on the offensive tactical thinking of wheelchair basketball players was addressed by examining the data via a one-way ANOVA. The ANOVA revealed no significant differences among disability classifications/categories in tactical thinking (F(3, 104)=1.12, p=0.34). This study represents the first attempt to identify why Arab nations have not consistently qualified for the Paralympics or World Championships. These findings indicate that the moderate offensive tactical thinking level of wheelchair basketball players on Arab national teams may be part of the reason that performances of these teams have not been as strong as they would like.

  7. A comparison of the injuries sustained by female basketball and netball players.

    Science.gov (United States)

    McKay, G D; Payne, W R; Goldie, P A; Oakes, B W; Stanley, J J

    1996-03-01

    A prospective and reliable method of injury surveillance was implemented to document a comprehensive injury profile in female basketball and netball. The study further aimed to compare the injury profiles of the two sports. Trained observers viewed basketball and netball games, noting the occurrence of injuries. Injuries were confirmed by questioning all players on site after the game. Injured players completed a questionnaire and the progress of their injury was monitored by telephone interview. A total of 16,162 player participations were observed; 6,972 for basketball and 9,190 for netball. Comparable injury rates were observed for female basketball and netball players; 18.22 and 17.30 injuries per 1,000 participations, respectively. The ankle, hand and knee were the body parts injured most frequently in both sports, whilst head and neck injuries were prevalent in basketball only. Netball players sustained severe injuries at a rate 3.3 times that of female basketball players. The major and severe injuries occurred at an average of one injury in 625 games in female basketball and one in 250 games in netball. The ankle, knee and calf/shin were the body parts most frequently involved in the more serious injuries.

  8. EFFECT OF INFORMATION PROCESSING AND DEPTH PERCEPTION UPON THROWING ACCURACY OF BASKETBALL PLAYERS

    Directory of Open Access Journals (Sweden)

    Singh Virendra Kumar

    2015-02-01

    Full Text Available Purpose: The purpose of the present study is to analyze throwing accuracy of basketball players in relation to their reasoning ability and depth perception. Materials and Methods : For present study, 200 intercollegiate basketball players (Ave. age = 21.34±1.87 years were selected as sample. Johnson Basketball Throw for Accuracy (Passing Test was the instrument which was used to assess shooting skills of selected subjects whereas reasoning ability of the selected subjects was assessed by MGTI prepared by Mehrotra (1984. To conduct the study, a 2x2 factorial design was used. Superior and inferior reasoning and perceptual abilities were ascertained by statistical method Q1 and Q3. 2x2 ANOVA results showed that the main effect of reasoning ability was not found to be statistically significant upon throwing accuracy of basketball players although it is close to .05 level of significance. Results : The main effect of depth perception upon throwing accuracy of basketball players turned out to be statistically significant. The two factor interaction effect of reasoning ability and depth perception upon throwing accuracy of basketball players was found to be statistically insignificant. Conclusion : It was concluded that reasoning ability and to some extent depth perception, are the two major variables which generate variance upon throwing accuracy of basketball players.

  9. The Influence of Basketball on the Asymmetry in the Use of Limbs

    Directory of Open Access Journals (Sweden)

    Aleksandar Čvorović

    2012-09-01

    Full Text Available The purpose of this study was to determine how basketball affects the uneven use of the limbs in relation to non-basketball population. Participants were compared by multiple motoric and situational tests, and for each participant tested the relationship between all limbs, both upper and lower. Before the motoric and situational tests participants completed a questionnaire on preference in limb use in everyday life and during sports activities. Participants belong to two groups, one group of young players with the rank of at least four years experience in basketball training, while the second group consists of members of the healthy school population, but with no experience in the continuous training of basketball. The study tested the explosive power of the lower and upper limbs, and the reaction time and agility in the lower limbs. Statistical analysis of results showed significant differences in certain tests between groups and within groups, both among the upper and lower extremities. It can be concluded that basketball as a specific sporting activity has positive influence on the development of the tested variables, while the level of asymmetry at basketball player is less than in the non-basketball population.

  10. The Effects of Plyometric Type Neuromuscular Training on Postural Control Performance of Male Team Basketball Players.

    Science.gov (United States)

    Asadi, Abbas; Saez de Villarreal, Eduardo; Arazi, Hamid

    2015-07-01

    Anterior cruciate ligament injuries are common in basketball athletes; common preventive programs for decreasing these injures may be enhancing postural control (PC) or balance with plyometric training. This study investigated the efficiency of plyometric training program within basketball practice to improve PC performance in young basketball players. Sixteen players were recruited and assigned either to a plyometric + basketball training group (PT) or basketball training group (BT). All players trained twice per week, but the PT + BT followed a 6-week plyometric program implemented within basketball practice, whereas the BT followed regular practice. The star excursion balance test (SEBT) at 8 directions (anterior, A; anteromedial, AM; anterolateral, AL; medial, M; lateral, L; posterior, P; posteromedial, PM; and posterolateral, PL) was measured before and after the 6-week period. The PT group induced significant improvement (p ≤ 0.05) and small to moderate effect size in the SEBT (A = 0.95, AM = 0.62, AL = 0.61, M = 0.36, L = 0.47, P = 0.27, PM = 0.25, PL = 0.24). No significant improvements were found in the BT group. Also, there were significant differences between groups in all directions except PM and PL. An integrated plyometric program within the regular basketball practice can lead to significant improvements in SEBT and consequently PC. It can be recommended that strength and conditioning professionals use PT to enhance the athletes' joint awareness and PC to reduce possible future injuries in the lower extremity.

  11. "White men can't jump." But can they throw? Social perception in European basketball.

    Science.gov (United States)

    Furley, P; Dicks, M

    2014-10-01

    In the present article, we investigate the influence of sociocultural stereotypes on the impression formation of basketball players and coaches. In Experiment 1 (n = 32), participants were shown a picture of a black or white basketball player prior to observation of a point-light video of a player executing a basketball free throw. The participant was informed that the player depicted in the picture was executing the free throw. Results indicated that ethnicity of the target player significantly influenced participant evaluations, demonstrating specific stereotypes about black and white basketball players when evaluating performance. In Experiment 2 (n = 30), results derived from the Implicit Association Test indicated that black players are implicitly associated with athletic player attributes. The results are in line with social schema theory and demonstrate that - similar to findings that have been reported in the United States - a subpopulation of German basketball players and coaches hold specific stereotypes about the abilities of black and white basketball athletes. These stereotypes bias impression formation when coaches and players make assessments of basketball performance.

  12. Relationship between general and specific coordination in 8- to 17-year-old male basketball players.

    Science.gov (United States)

    Kamandulis, Sigitas; Venckūnas, Tomas; Masiulis, Nerijus; Matulaitis, Kestutis; Balciūnas, Mindaugas; Peters, Derek; Skurvydas, Albertas

    2013-12-01

    The purpose of the present study was to investigate the relationships between general coordination, sport-specific coordination, and sport-specific fitness of 8- to 17-year-old male basketball players. 312 males with training experience ranging from one year in the 8-year-old cohort up to 10 years for the 17-year-olds performed basketball-specific fitness (20 m sprint, Illinois, countermovement jump), general coordination (20 m run with three obstacles), semi-basketball-specific coordination (20 m sprint dribbling two balls, countermovement jump with arm swing) and basketball-specific coordination (Illinois ball dribbling) tests. There were moderate to large correlations between the results of both general and basketball-specific coordination with the results of most basketball-specific coordination tests in all age groups. Correlations between general and basketball-specific coordination were large in four age groups (11-14 yr., r = .52 to r = .76), moderate in five groups (8-10, 15 & 16 yr., r = .37 to r = .46), while not significant in the 17-year-olds. These results suggest that the importance of general coordination for sport-specific skills improvements during a sports-specific skill acquisition phase, remains high at the skill refinement phase, and decreases when sport-specific skills have been mastered to near-perfection.

  13. Left-handedness in professional and amateur tennis.

    Directory of Open Access Journals (Sweden)

    Florian Loffing

    Full Text Available Negative frequency-dependent effects rather than innate predispositions may provide left-handers with an advantage in one-on-one fighting situations. Support mainly comes from cross-sectional studies which found significantly enhanced left-hander frequencies among elite athletes exclusively in interactive sports such as baseball, cricket, fencing and tennis. Since professional athletes' training regimes continuously improve, however, an important unsolved question is whether the left-handers' advantage in individual sports like tennis persists over time. To this end, we longitudinally tracked left-hander frequencies in year-end world rankings (men: 1973-2011, ladies: 1975-2011 and at Grand Slam tournaments (1968-2011 in male and female tennis professionals. Here we show that the positive impact of left-handed performance on high achievement in elite tennis was moderate and decreased in male professionals over time and was almost absent in female professionals. For both sexes, left-hander frequencies among year-end top 10 players linearly decreased over the period considered. Moreover, left-handedness was, however, no longer seems associated with higher probability of attaining high year-end world ranking position in male professionals. In contrast, cross-sectional data on left-hander frequencies in male and female amateur players suggest that a left-handers' advantage may still occur on lower performance levels. Collectively, our data is in accordance with the frequency-dependent hypothesis since reduced experience with left-handers in tennis is likely to be compensated by players' professionalism.

  14. Left-handedness in professional and amateur tennis.

    Science.gov (United States)

    Loffing, Florian; Hagemann, Norbert; Strauss, Bernd

    2012-01-01

    Negative frequency-dependent effects rather than innate predispositions may provide left-handers with an advantage in one-on-one fighting situations. Support mainly comes from cross-sectional studies which found significantly enhanced left-hander frequencies among elite athletes exclusively in interactive sports such as baseball, cricket, fencing and tennis. Since professional athletes' training regimes continuously improve, however, an important unsolved question is whether the left-handers' advantage in individual sports like tennis persists over time. To this end, we longitudinally tracked left-hander frequencies in year-end world rankings (men: 1973-2011, ladies: 1975-2011) and at Grand Slam tournaments (1968-2011) in male and female tennis professionals. Here we show that the positive impact of left-handed performance on high achievement in elite tennis was moderate and decreased in male professionals over time and was almost absent in female professionals. For both sexes, left-hander frequencies among year-end top 10 players linearly decreased over the period considered. Moreover, left-handedness was, however, no longer seems associated with higher probability of attaining high year-end world ranking position in male professionals. In contrast, cross-sectional data on left-hander frequencies in male and female amateur players suggest that a left-handers' advantage may still occur on lower performance levels. Collectively, our data is in accordance with the frequency-dependent hypothesis since reduced experience with left-handers in tennis is likely to be compensated by players' professionalism.

  15. OFFENSE ELEMENTS ANALYSIS IN BASKETBALL APPLIED BY WELL-KNOWN COACHES

    Directory of Open Access Journals (Sweden)

    Naid Kadušić

    2010-09-01

    Full Text Available Offense tatctics can be divided into indivdual, group and collective. This article deals with man to man offense, as well as with primary and secondary fast break. It deals with offense tactics consideration and analysis of well-known contemporary teams. Their tactics is presented through different simplified patterns. These patterns allow the teams to find more ideas how to outperform an oponent. The aim of each strategy is to bring a specific outcome, which may be positive or negative. A game outcome is the final product of a team and it shows whether any progress has been made. One of the important offense tactics is man to man, which is very demanding. There is secondary offense also, that represents a situation in which the oponent defense is outnumbered by the offense. These tactics are closely connected with primary and secondary fast break offense. Another interesting type of an offensive play is the pick and roll, one of the most common contemporary plays used in basketball.

  16. Analysis of Pelvis-Thorax Coordination Patterns of Professional and Amateur Golfers during Golf Swing.

    Science.gov (United States)

    Sim, Taeyong; Yoo, Hakje; Choi, Ahnryul; Lee, Ki Young; Choi, Mun-Taek; Lee, Soeun; Mun, Joung Hwan

    2017-03-13

    The aim of this research was to quantify the coordination pattern between thorax and pelvis during a golf swing. The coordination patterns were calculated using vector coding technique, which had been applied to quantify the coordination changes in coupling angle (γ) between two different segments. For this, fifteen professional and fifteen amateur golfers who had no significant history of musculoskeletal injuries. There was no significant difference in coordination patterns between the two groups for rotation motion during backswing (p = 0.333). On the other hand, during the downswing phase, there were significant differences between professional and amateur groups in all motions (flexion/extension: professional [γ] = 187.8°, amateur [γ] = 167.4°; side bending: professional [γ] = 288.4°, amateur [γ] = 245.7°; rotation: professional [γ] = 232.0°, amateur [γ] = 229.5°). These results are expected to be a discriminating measure to assess complex coordination of golfers' trunk movements and preliminary study for interesting comparison by golf skilled levels.

  17. Projectile motion in real-life situation: Kinematics of basketball shooting

    Science.gov (United States)

    Changjan, A.; Mueanploy, W.

    2015-06-01

    Basketball shooting is a basic practice for players. The path of the ball from the players to the hoop is projectile motion. For undergraduate introductory physics courses student must be taught about projectile motion. Basketball shooting can be used as a case study for learning projectile motion from real-life situation. In this research, we discuss the relationship between optimal angle, minimum initial velocity and the height of the ball before the player shoots the ball for basketball shooting problem analytically. We found that the value of optimal angle and minimum initial velocity decreases with increasing the height of the ball before the player shoots the ball.

  18. 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.

  19. Physical and physiological demands of U-19 basketball refereeing: Aerobic and anaerobic demands.

    Science.gov (United States)

    Nabli, Mohamed Ali; Ben Abdelkrim, Nidhal; Castagna, Carlo; Jabri, Imed; Batikh, Tahar; Chamari, Karim

    2016-01-01

    This study aimed to examine the physical and physiological demands of basketball refereeing. 16 elite-level basketball referees were studied during U-19 basketball games (n=8) for time-motion analyses, exercise heart rates (HR) and blood lactate concentration [La]. Game activities were considered as time spent and distance covered in five locomotors activities (standing, walking, jogging, running and sprinting). Referees spent more time (pReferees covered more distance (pbasketball refereeing is a moderate intensity activity where referees spent 81% of total game time at low-intensity with bouts of high-intensity activities throughout the game.

  20. The effect of perceived streakiness on the shot-taking behaviour of basketball players.

    Science.gov (United States)

    Csapo, Peter; Avugos, Simcha; Raab, Markus; Bar-Eli, Michael

    2015-01-01

    We examine behavioural changes of basketball players arising from the hot-hand belief and use data of 1216 National Basketball Association games to measure the effect of cold and hot streaks on three proxies of shot difficulty. We find that the more consecutive shots players make (miss), the more difficult (easier) shots become along the three dimensions. Furthermore, most players' performance seems to improve during hot streaks because they attempt more difficult shots while no significant decrease in shooting accuracy takes place. This might explain why most previous studies could not find empirical evidence for the hot-hand belief in basketball when considering in-game field goal shooting.

  1. Reciprocity on the hardwood: passing patterns among professional basketball players.

    Science.gov (United States)

    Willer, Robb; Sharkey, Amanda; Frey, Seth

    2012-01-01

    Past theory and research view reciprocal resource sharing as a fundamental building block of human societies. Most studies of reciprocity dynamics have focused on trading among individuals in laboratory settings. But if motivations to engage in these patterns of resource sharing are powerful, then we should observe forms of reciprocity even in highly structured group environments in which reciprocity does not clearly serve individual or group interests. To this end, we investigated whether patterns of reciprocity might emerge among teammates in professional basketball games. Using data from logs of National Basketball Association (NBA) games of the 2008-9 season, we estimated a series of conditional logistic regression models to test the impact of different factors on the probability that a given player would assist another player in scoring a basket. Our analysis found evidence for a direct reciprocity effect in which players who had "received" assists in the past tended to subsequently reciprocate their benefactors. Further, this tendency was time-dependent, with the probability of repayment highest soon after receiving an assist and declining as game time passed. We found no evidence for generalized reciprocity - a tendency to "pay forward" assists - and only very limited evidence for indirect reciprocity - a tendency to reward players who had sent others many assists. These findings highlight the power of reciprocity to shape human behavior, even in a setting characterized by extensive planning, division of labor, quick decision-making, and a focus on inter-group competition.

  2. Reciprocity on the hardwood: passing patterns among professional basketball players.

    Directory of Open Access Journals (Sweden)

    Robb Willer

    Full Text Available Past theory and research view reciprocal resource sharing as a fundamental building block of human societies. Most studies of reciprocity dynamics have focused on trading among individuals in laboratory settings. But if motivations to engage in these patterns of resource sharing are powerful, then we should observe forms of reciprocity even in highly structured group environments in which reciprocity does not clearly serve individual or group interests. To this end, we investigated whether patterns of reciprocity might emerge among teammates in professional basketball games. Using data from logs of National Basketball Association (NBA games of the 2008-9 season, we estimated a series of conditional logistic regression models to test the impact of different factors on the probability that a given player would assist another player in scoring a basket. Our analysis found evidence for a direct reciprocity effect in which players who had "received" assists in the past tended to subsequently reciprocate their benefactors. Further, this tendency was time-dependent, with the probability of repayment highest soon after receiving an assist and declining as game time passed. We found no evidence for generalized reciprocity - a tendency to "pay forward" assists - and only very limited evidence for indirect reciprocity - a tendency to reward players who had sent others many assists. These findings highlight the power of reciprocity to shape human behavior, even in a setting characterized by extensive planning, division of labor, quick decision-making, and a focus on inter-group competition.

  3. IMPORTANCE OF STRATEGIC INFORMATIONS FOR PLANNING IN BASKETBALL

    Directory of Open Access Journals (Sweden)

    Pavle Rubin

    2009-11-01

    Full Text Available Planning in basketball (like in other sports is one aspect of the job of a sport coach. Every coach while writting (creating, composing the plan and programme of a trainning (trainning proces should have the informations important for achievingsuccess. That kontigent of informations should be hierarchy arranged. Driving the pro- gramme the coach should always barring in mind what is the most important aim which in particular moment he wants to realise. Problem of this work is in fact that difference between coaches is that thay dont give certain importance to the particular informati- ons. Beside the necessity to know wich informations are the most important for solving a problem, it is important to prove their corelations. The aim of the research is to present the importance of identification and using of strategic infomations in planning (and pro- gramming in basketball. According to all infomations colected by coach he creates his strategic koncept. Using the strategic koncept he can create tactical koncept, particular koncept for the particular opponent (tactical plan and to (more or less use intime cer- tain tactical variance on the game (operative tactics. The coach (as the most important in the trainning process should be familiar with the science aspects of sport activities. That way he can overtake expected integral functions and be a lieder who gain the aim.

  4. Absence of left ventricular hypertrophy in elite college basketball players.

    Science.gov (United States)

    Wolfe, L A; Martin, R P; Seip, R L

    1985-09-01

    Left ventricular dimensions of 11 successful male college basketball players engaged in pre-season conditioning (mean age, 20.3 years) and 13 tall healthy male controls (mean age, 21.6 years) were studied by echocardiography. Left ventricular internal dimension (LVIDd, mm), posterior wall thickness (PWT, mm), septal thickness (ST, mm), and calculated left ventricular mass (LV mass, g) in the athletes were within or only slightly in excess of echocardiographic normal limits and mean values were not significantly different from the control group. LVIDd (mm/m2 body surface area) was significantly lower in the athletes. However, five guard-type players displayed significantly greater mean values for PWT and LV mass compared to six taller forwards/centers with linear body builds. It was concluded that left ventricular hypertrophy is not a common characteristic of college basketball players. It was hypothesized that cardiac dimensions of young men may vary independently of gross body size in relation to somatotype or other anthropometric variables.

  5. EFFECTS OF BASKETBALL GAMES ON COMMON ABILITIES OF ASSOCIATES INVOLVED

    Directory of Open Access Journals (Sweden)

    Budimir Bijelić

    2009-11-01

    Full Text Available Basketball is a sports discipline and activity distinguished by a number of advan- tages and therefore it is suitable to be included in different SPORT FOR ALL organiza- tion. This Paper has dealt with research of the effects of basketball games on certain motor and function abiliteies of associates regularly involved. 53 male associates, age 35-50, have undergone testing for seven motor variables where 2 km long walking activity (fitness index = general motor ability mean criteria variable. Systems of predictive motr and criteria variables have been tested in complian- ce with the methodology of Eurofit battery for adults. Based on the results obtained therein and related statistical analysis it has been found that 61 % of variability for criteria variable can be explained by the system of six predictive variables: lying - rising up in sitting position; leaning up forward in sitting position; standing on one leg - “flamingo”; jumping up; hand tapping and flexible han- ging down in bending motions. This statistical effect (at the level of p =.00 has accomplished the overall system of predictive motor variables, but not a snigle variable could have any special statistical effects on criteria variable UKK-2 km

  6. Leadership power perception of amateur and professional soccer coaches and players according to their belief in good luck or not.

    Science.gov (United States)

    Konter, Erkut

    2010-09-01

    The purpose of this study was to analyze the leadership power perception of amateur and professional soccer coaches and players according to their belief in good luck or not. Data collected from 165 male soccer coaches and 870 male soccer players including professionals and amateurs. The coaches had a mean age of 40.24 years (SD = 8.40) and had been coaching for an average of 8.56 years (SD = 6.75). The players had a mean age of 18.40 years (SD = 4.00) and had been playing soccer for an average of 6.00 years (SD = 4.15) with license. Adapted Turkish version of Power in Soccer Questionnaire-Other (PSQ-O for soccer players), Power in Soccer Questionnaire-Self (PSQ-S for coaches) and an information form were used for the data collection. Cronbach Reliability Alphas of PSQ-O and PSQ-S range between 0.60 and 0.84. Players' and coaches' data were analyzed by Kruskal-Wallis and Mann Whitney Tests. Analysis of PSQ-O revealed significant differences related to Coersive Power-CP [chi2 (3) = 8.46, p differences related to Legitimate Power-LP (p > 0.05). Results of PSQ-O and PSQ-S indicated complex relationships related to belief in good luck or not. Overall, there are differences between coaches' and players'perception of CP, LP and EP related to belief in good luck or not. The only similarity appears to be in perception of RP. However, there is lack of research to make more certain conclusions. Future researchers should also take into consideration gender, sport experience, age, taking responsibility, self-confidence, attributions, expectations, superstitions, emotions, perception of achievement etc.

  7. An Amateur-Professional International Observing Campaign for the EPOXI Mission: New Insights Into Comets

    Science.gov (United States)

    Meech, K. J.

    2012-06-01

    (Abstract only) Comets are leftovers from the early solar system and may have played a role in delivering water and organics to the prebiotic Earth. Because comets may preserve a record of the early solar system conditions, they are the focus of small body missions. The EPOXI (Extrasolar Planet Observation and Characterization (EPOCh) + Deep Impact Extended Investigation (DIXI) = EPOXI) flyby of the nucleus of comet 103P/Hartley 2 provided us with physical properties of the nucleus and clear evidence of chemical heterogeneity with CO2-driven jets as a dominant volatile loss mechanism at perihelion compared to subsurface water-ice sublimation. An international Earth-based observation campaign played a complementary role to the in-situ data, providing recovery images of the comet at large distances, physical information about the nucleus size, and from a coordinated multiwavelength program nearly continuous coverage from August 2010 through encounter on 4 November 2010. From the Earth-based campaign it was clear that comet Hartley 2 had a small nucleus (0.57 km radius), with a rotation period near 16.4 hours prior to the onset of activity. As the activity developed the periodicity was found to change significantly over a period of months. The highly active nucleus had long- and short-term gas production variability with peak activity shortly after perihelion. The comet's activity has been photometrically monitored (as scattered light from the dust coma) from the time of recovery to the present, and the nearly continuous coverage of the comet from August 2010 into 2011 would not have been possible without the amateur contributions. Using these brightness data, we have developed an ice sublimation model to estimate the amount of dust emitted from the comet (and hence the total scattered light) as a function of heliocentric distance as it is driven by a gas flow. The model includes nucleus ices: H2O, CO2, CO, and H2O sublimating from the large chunks seen both from the

  8. Professional-amateur collaboration in astronomy: Increased Pro-Am cooperation in spectroscopy delivers results

    Science.gov (United States)

    Leadbeater, R.

    2009-06-01

    A presentation given at the Pro-Am session of the Joint European National Astronomy Meeting (JENAM) on 2009 April 21. Spectroscopy is a key tool for the professional astronomer with most papers having some reference to spectroscopic data. In the amateur domain however spectroscopists, particularly those attempting to generate scientifically useful data, are rather few and far between. They are however growing in number and capability, due to a large extent to the progress being made in two European groups. One is the "Spectroscopy Working Group", part of the German amateur association "Vereinigung der Sternfreunde" (VdS) and the other is the French "Astronomical Ring for Access to Spectroscopy" (ARAS). The membership of these organisations extends beyond their home countries and both have forged links within the professional sphere to identify areas where amateurs can contribute to the science and develop the technology and techniques needed.

  9. The need for Professional-Amateur collaborations in studies of Jupiter and Saturn

    CERN Document Server

    Kardasis, Emmanuel; Orton, Glenn; Delcroix, Marc; Christou, Apostolos; Foulkes, Mike; Yanamandra-Fisher, Padma; Jacquesson, Michel; Maravelias, Grigoris

    2015-01-01

    The observation of gaseous giant planets is of high scientific interest. Although they have been the targets of several spacecraft missions, there still remains a need for continuous ground-based observations. As their atmospheres present fast dynamic environments on various time scales, the availability of time at professional telescopes is neither uniform nor of sufficient duration to assess temporal changes. However, numerous amateurs with small telescopes (of 15-40 cm) and modern hardware and software equipment can monitor these changes daily (within the 360-900nm range). Amateurs are able to trace the structure and the evolution of atmospheric features, such as major planetary-scale disturbances, vortices, and storms. Their observations provide a continuous record and it is not uncommon to trigger professional observations in cases of important events, such as sudden onset of global changes, storms and celestial impacts. For example, the continuous amateur monitoring has led to the discovery of fireballs...

  10. Simultaneous Camera Path Optimization and Distraction Removal for Improving Amateur Video.

    Science.gov (United States)

    Zhang, Fang-Lue; Wang, Jue; Zhao, Han; Martin, Ralph R; Hu, Shi-Min

    2015-12-01

    A major difference between amateur and professional video lies in the quality of camera paths. Previous work on video stabilization has considered how to improve amateur video by smoothing the camera path. In this paper, we show that additional changes to the camera path can further improve video aesthetics. Our new optimization method achieves multiple simultaneous goals: 1) stabilizing video content over short time scales; 2) ensuring simple and consistent camera paths over longer time scales; and 3) improving scene composition by automatically removing distractions, a common occurrence in amateur video. Our approach uses an L(1) camera path optimization framework, extended to handle multiple constraints. Two passes of optimization are used to address both low-level and high-level constraints on the camera path. The experimental and user study results show that our approach outputs video that is perceptually better than the input, or the results of using stabilization only.

  11. Nutritional status and prevalence of metabolic syndrome in amateur soccer players

    Directory of Open Access Journals (Sweden)

    Luciano Meireles de Pontes

    2009-01-01

    Full Text Available The objective of this study was to evaluate the nutritional status and prevalence of metabolic syndrome in amateur soccer players. Thirty-two men (39.0 ± 6.4 years regularly playing soccer were studied. Nutritional status was evaluated according to body mass index (BMI and the World Health Organization classification. Metabolic syndrome was defined according to the criterion of the International Diabetes Federation which, in addition to central obesity (waist circumference > 90 cm, considers two or more of the following conditions in males: triglyceridemia ≥ 150 mg/dl; HDL < 40 mg/dl; systolic pressure ≥ 130 mmHg or diastolic pressure ≥ 85 mm/Hg, and fasting glycemia ≥ 100 mg/dl. Statistical analysis processed descriptive data of percentage, mean, minimum, maximum, and standard deviation. Correlations between pairs of variables were determined by Pearson’s r coefficient. The results showed that 43.8% of the soccer players were eutrophic, 43.8% presented overweight and 12.5% were obese. The prevalence of metabolic syndrome was 37.5% and the most prevalent components were abdominal obesity in 59.4%, hypertension in 40.6%, hypertriglyceridemia in 34.4%, HDL-c in 28.1%, and fasting glycemia in 15.6%. BMI presented a more robust correlation with waist circumference (r = 0.918. In conclusion, the nutritional status of the soccer players studied was characterized by the presence of overweight and obesity. Although the frequency of metabolic syndrome was lower than in other epidemiological studies, these sportsmen should engage in other health-promoting behaviors such as good eating habits and control of stress in addition to physical activity.

  12. 第27届男篮亚锦赛中国队与前四强对手攻防能力分析%Analysis on the Offensive and Defensive Abilities of Chinese Men’s Basketball Team and the Semi-finals Opponents in the 27th Asian Men’s Basketball Championship

    Institute of Scientific and Technical Information of China (English)

    安迪

    2014-01-01

    采用文献资料法、录像观察法、数理统计法等,分析和研究了第27届亚洲男子篮球锦标赛中国队与前四强及前四强之间的45场比赛情况,找出了中国男子篮球队打出最差战绩的原因以及在进攻与防守方面的优势与差距,提出了相应的对策,期望为推动中国男子篮球队的进步和发展提供借鉴。%Employing the methods of documentation ,video observation and statistics ,the 45 games of Chinese and the semi-finals opponents are analyzed and researched in 27th Asian men's basketball championship .The reasons are found out for the worst record of Chinese men’s basketball team play in Asian championships ,as well as the advanta-ges and disadvantages in the aspects of offensive and defensive ,and relevant solutions are put forward to promote the progress and development of the Chinese men’s basketball team .

  13. "Leaders," "Followers" and Collective Group Support in Learning "Art Music" in an Amateur Composer-Oriented Bach Choir

    Science.gov (United States)

    Einarsdottir, Sigrun Lilja

    2014-01-01

    The purpose of this paper is to demonstrate how amateur choral singers experience collective group support as a method of learning "art music" choral work. Findings are derived from a grounded-theory based, socio-musical case study of an amateur "art music" Bach Choir, in the process of rehearsing and performing the Mass in B…

  14. 47 CFR Appendix 1 to Part 97 - Places Where the Amateur Service is Regulated by the FCC

    Science.gov (United States)

    2010-10-01

    ... by the FCC 1 Appendix 1 to Part 97 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED... the Amateur Service is Regulated by the FCC In ITU Region 2, the amateur service is regulated by the FCC within the territorial limits of the 50 United States, District of Columbia, Caribbean...

  15. "Leaders," "Followers" and Collective Group Support in Learning "Art Music" in an Amateur Composer-Oriented Bach Choir

    Science.gov (United States)

    Einarsdottir, Sigrun Lilja

    2014-01-01

    The purpose of this paper is to demonstrate how amateur choral singers experience collective group support as a method of learning "art music" choral work. Findings are derived from a grounded-theory based, socio-musical case study of an amateur "art music" Bach Choir, in the process of rehearsing and performing the Mass in B…

  16. Research amateur astronomy; Proceedings of the Symposium, La Paz, Mexico, July 7-12, 1991

    Science.gov (United States)

    Edberg, Stephen J. (Editor)

    1992-01-01

    The present volume on amateur astronomy deals with solar observations; planet, asteroid, and comet studies; photometry; education and communication; and history and sociology. Particular attention is given to the observation of the 1984 annular eclipse in Mexico, amateur solar astronomy in Germany, the Ashen Light of Venus, dust clouds on Mars in 1990, and the importance of comets Encke and Machholz. Also discussed are a UBVRI and occultation photometry acquisition and reduction software package for PC-based observatories, a Skyweek weekly newsletter on astronomy and spaceflight, and the Hubble Space Telescope and the Goddard High Resolution Spectrograph.

  17. When all else fails: 21st century Amateur Radio as an emergency communications medium.

    Science.gov (United States)

    Nollet, Kenneth E; Ohto, Hitoshi

    2013-12-01

    Twenty-first century demand for radio spectrum continues to increase with the explosive growth of wireless devices, but authorities reserve slices of the spectrum for licensed Amateur Radio operators, recognizing their value to the public, particularly with respect to providing emergency communications. Blood banking and transfusion medicine are among the specialties that should also recognize the value of Amateur Radio as an emergency communications medium, because blood collection, testing, processing, storage, and transfusion are life-saving activities that in modern times can be separated by considerable distance.

  18. Amateur Sources Breaking the News, Meta Sources Authorizing the News of Gaddafi's Death

    DEFF Research Database (Denmark)

    Mortensen, Mette; Kristensen, Nete Nørgaard

    2013-01-01

    This article takes its point of departure in the thesis that today’s global, digitalized and conver- gent media environment has promoted new patterns of information gathering and dissemina- tion within journalism, and war journalism in particular, which involve changing forms and various degrees...... of interplay between elite and non-elite sources as well as media professionals and amateur sources. On account of their proximity to unfolding events, amateur sources often break the news by means of raw and fragmented bits of visual and verbal information. Elite sources rarely possess the same exclusive...

  19. The effects of resistance training on explosive strength indicators in adolescent basketball players.

    Science.gov (United States)

    Santos, Eduardo J A M; Janeira, Manuel A A S

    2012-10-01

    The purpose of this study was to assess the effects of a lower- and upper-body 10-week in-season resistance training program on explosive strength development in young basketball players. Twenty-five adolescent male athletes, aged 14-15 years old, were randomly assigned to an experimental group (EG; n = 15) and a control group (CG; n = 10). The subjects were assessed at baseline and after training for squat jump (SJ), countermovement jump (CMJ), Abalakov test, drop jump, and seated medicine ball throw (MBT). The EG showed significant increases (p training program with moderate volume and intensity loads increased vertical jump and MBT performance in adolescent male basketball players. Coaches should know that such a short resistance training program specifically designed for young basketball players induce increased explosivity levels, which are essential to a better basketball performance, with no extra overload on adolescents' skeletal muscle development.

  20. Communication and Their Role in The Preparation and Presentation of The Basketball Referee

    National Research Council Canada - National Science Library

    Fabiana Martinescu-Bădălan

    2017-01-01

    The present paper wishes to start from the premise that we are preparing to express, namely that there is a correlation between the degree of preparation of the basketball referees and their results...