Performance Changes in NBA Basketball Players Vary in Starters vs. Nonstarters Over a Competitive Season

2013 ◽  
Vol 27 (3) ◽  
pp. 611-615 ◽  
Author(s):  
Adam M. Gonzalez ◽  
Jay R. Hoffman ◽  
Joseph P. Rogowski ◽  
William Burgos ◽  
Edwin Manalo ◽  
...  
1994 ◽  
Vol 26 (Supplement) ◽  
pp. S65
Author(s):  
K. D. Johnson ◽  
R. Henry ◽  
J. L. Griffith ◽  
D. L. Adams ◽  
Theresa Bolton

2012 ◽  
Vol 13 (4) ◽  
pp. 509-517 ◽  
Author(s):  
Claudio Robazza ◽  
Sabina Gallina ◽  
Maria Angela D'Amico ◽  
Pascal Izzicupo ◽  
Adriana Bascelli ◽  
...  

Author(s):  
Chun-Chung Chou ◽  
Fei-Ti Wang ◽  
Hsin-Hung Wu ◽  
Shiow-Chwen Tsai ◽  
Chung-Yu Chen ◽  
...  

Background: Through scholastic sports programs, adolescent athletes compete to represent their communities. However, few studies investigate the changes in physiological and mental profiles during varied sport periodization among this population. Therefore, the purpose of this study was to compare the changes in sports performance and stress-related biomarkers between the competitive season (CS) and off-season (OS) in elite adolescent basketball players. Method: Nine elite Division I male basketball players (age: 15–18 years. old) participated in this study. Basketball-specific performance, salivary dehydroepiandrosterone sulfate (DHEA-S)/cortisol levels, mood state, and sleep quality were all accessed during the CS and OS periods. Results: The training load during OS was 26.0% lower than CS (p = 0.001). Muscle mass, aerobic capacity, 10 m sprint, and Abalakov jump (AJ) power during OS were greater than that during CS (+2.2–9.8%, p < 0.05), but planned agility was greater during CS (p = 0.003). The salivary DHEA-S/cortisol was greater during CS than during OS (p = 0.039). The overall mood state and sleep quality did not differ between periods, but the POMS-tension was higher during CS (p = 0.005). Conclusion: The present study demonstrates that muscle mass, aerobic capacity, peak AJ power, and 10 m sprint performance, but not planned agility, were greater during OS compared to CS among elite adolescent basketball players. Furthermore, the stress-related responses reflected by the D/C ratio and mood tension were relatively lower during the OS in these athletes. Thus, this study suggests that coaches and sport science professionals should closely monitor athletes’ training states across varied training/competition periods to better react to modifying training or recovery plans.


Author(s):  
Oluwatoyosi B. A. Owoeye ◽  
Luz Palacios-Derflingher ◽  
Kati Pasanen ◽  
Tate HubkaRao ◽  
Preston Wiley ◽  
...  

This study aimed at evaluating the burden and risk factors of patellar and Achilles tendinopathy among youth basketball players. Patellar and Achilles tendinopathy were prospectively monitored in 515 eligible male and female youth basketball players (11–18 years) through a competitive season. Overall, the season prevalence of patellar tendinopathy was 19.0% (95% CI: 15.7–22.7%), 23.2% (95% CI: 18.6–28.2%) in males and 12.5% (95% CI: 8.3–17.9%) in females. The season prevalence of Achilles tendinopathy was 4.3% (95% CI: 2.7–6.4%), 4.1% (95% CI: 2.2–7.0%) in males and 4.5% (95% CI: 2.1–8.4%) in females. Median proportion of symptoms duration was 83% of average total weeks of basketball exposure for patellar tendinopathy and 75% for Achilles tendinopathy. Median time to patellar tendinopathy onset was 8 weeks for male players and 6 weeks for female players. Higher odds of patellar tendinopathy risk were seen in males (OR: 2.23, 95% CI: 1.10–4.69) and players with previous anterior knee pain had significantly elevated odds (OR: 8.5, 95% CI: 4.58–16.89). The burden and risk of patellar tendinopathy is high among competitive youth basketball players. Risk factors include sex and previous anterior knee pain. These findings provide directions for practice and future research.


Author(s):  
Jordan L. Fox ◽  
Jesse Green ◽  
Aaron T. Scanlan

Purpose: To compare peak and average intensities encountered during winning and losing game quarters in basketball players. Methods: Eight semiprofessional male basketball players (age = 23.1 [3.8] y) were monitored during all games (N = 18) over 1 competitive season. The average intensities attained in each quarter were determined using microsensors and heart-rate monitors to derive relative values (per minute) for the following variables: PlayerLoad, frequency of high-intensity and total accelerations, decelerations, changes of direction, jumps, and total inertial movement analysis events combined, as well as modified summated-heart-rate-zones workload. The peak intensities reached in each quarter were determined using microsensors and reported as PlayerLoad per minute over 15-second, 30-second, 1-minute, 2-minute, 3-minute, 4-minute, and 5-minute sample durations. Linear mixed models and effect sizes were used to compare intensity variables between winning and losing game quarters. Results: Nonsignificant (P > .05), unclear–small differences were evident between winning and losing game quarters in all variables. Conclusions: During winning and losing game quarters, peak and average intensities were similar. Consequently, factors other than the intensity of effort applied during games may underpin team success in individual game quarters and therefore warrant further investigation.


1995 ◽  
Vol 9 (1) ◽  
pp. 41-50 ◽  
Author(s):  
David P. Templin ◽  
Ralph A. Vernacchia

Recent technological developments in applied sport psychology that utilize videotaping and playback techniques to enhance athletic performance have become increasingly attractive to coaches, athletes, and sport psychologists. This study of 5 male intercollegiate basketball players was designed to examine the effectiveness of highlight peak performance music videotapes on competitive offensive field goal percentage. Videotapes incorporating each player’s best and most effective plays were supplemented by inspirational music and were viewed by the athletes throughout the competitive season. Treatment effects were determined by a single-subject multiple-baseline-across-subjects design. Although a causal relationship between highlight videotapes and offensive field goal percentage was not established, the results did demonstrate a mean increase of 4.7% in overall field goal percentage for 3 of the 5 participants. Social validity was explored through the use of imagery evaluation sheets, individual player logs of introspective thought, and personal interviews.


2012 ◽  
Vol 26 (12) ◽  
pp. 3197-3203 ◽  
Author(s):  
Adam M. Gonzalez ◽  
Jay R. Hoffman ◽  
Jennifer R. Scallin-Perez ◽  
Jeffrey R. Stout ◽  
Maren S. Fragala

2019 ◽  
Vol 19 (1) ◽  
pp. 283-290
Author(s):  
André Luiz De Almeida Soares ◽  
Felipe G Mendes ◽  
Caio G Miguel ◽  
Carlos E Palheta ◽  
Fabrício J Milan ◽  
...  

A team shared belief in its capability to organize and execute some actions required to achieve given performance level is referred as collective efficacy. Collective efficacy in sports appears to be dependent on the interactions and organized dynamics between the players within the team, their competences, including physical competence, organization, structure and strategies. It is directly related to team performance potential. In the present study we examined the changes of perceived collective efficacy among young basketball players and 10 to 17 years across a 4-month competitive season, accounting for variation by age group since youth sports are generally organized by competitive age groups. Based on the repeated measures across 4 months in the range of age observed, we explored the trends of perceived collective efficacy among this sample players. Sixty-five adolescent male basketball players aged 13,7 (9,5 to 17,3) years at baseline were considered. Collective Efficacy Questionnaire for Sports (CEQS) was used to assess players´ perception of collective efficacy. The adolescent basketball players had high CEQS scores. Except for persistence, all CEQS factors did not vary by age group. However, no distinct trend of differences between age group was present. The CEQS factors remained high after 4-months competitive season exposure, except for ability where there was a systematic decrease for players scores at end-season.  A negative trend of change was apparent for persistence, preparation and unity as players were closer to late adolescence years. The results in this study highlight the importance for coaches and practitioners to consider environment and context influence on young basketball players´ collective efficacy perception. A team shared belief in its capability to organize and execute some actions required to achieve given performance level is referred as collective efficacy. Collective efficacy in sports appears to be dependent on the interactions and organized dynamics between the players within the team, their competences, including physical competence, organization, structure and strategies. It is directly related to team performance potential. In the present study we examined the changes of perceived collective efficacy among young basketball players and 10 to 17 years across a 4-month competitive season, accounting for variation by age group since youth sports are generally organized by competitive age groups. Based on the repeated measures across 4 months in the range of age observed, we explored the trends of perceived collective efficacy among this sample players. Sixty-five adolescent male basketball players aged 13,7 (9,5 to 17,3) years at baseline were considered. Collective Efficacy Questionnaire for Sports (CEQS) was used to assess players´ perception of collective efficacy. The adolescent basketball players had high CEQS scores. Except for persistence, all CEQS factors did not vary by age group. However, no distinct trend of differences between age group was present. The CEQS factors remained high after 4-months competitive season exposure, except for ability where there was a systematic decrease for players scores at end-season.  A negative trend of change was apparent for persistence, preparation and unity as players were closer to late adolescence years. The results in this study highlight the importance for coaches and practitioners to consider environment and context influence on young basketball players´ collective efficacy perception.


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