Match Day-1 Reactive Strength Index and In-Game Peak Speed in Collegiate Division I Basketball

Adam J. Petway, Tomás T. Freitas, Julio Calleja-González and Pedro E. Alcaraz
Additional contact information
Adam J. Petway: Washington Wizards Athlete Care Department, Washington, DC 20004, USA
Tomás T. Freitas: UCAM Research Center for High Performance Sport, Catholic University of Murcia, 30107 Murcia, Spain
Julio Calleja-González: Department of Physical Education and Sport, Faculty of Education and Sport, University of Basque Country, UPV/EHU, 48940 Victoria-Gasteiz, Spain
Pedro E. Alcaraz: UCAM Research Center for High Performance Sport, Catholic University of Murcia, 30107 Murcia, Spain

IJERPH, 2021, vol. 18, issue 6, 1-6

Abstract: Basketball is a game of repeated jumps and sprints. The objective of this study was to examine whether repeated jump assessments the day prior to competition (MD-1) could discriminate between fast and slow in-game performances the following day. Seven NCAA Division I Basketball athletes (4 guards and 3 forwards; 20 ± 1.2 years, 1.95 ± 0.09 m, and 94 ± 15 kg) performed a repeated-hop test on a force platform before and after each practice MD-1 to assess Reactive Strength Index (RSI) and Jump Height (JH). Peak speed was recorded during games via spatial tracking cameras. A median split analysis classified performance into FAST and SLOW relative to individual in-game peak speed. Paired T -tests were performed to assess post- to pre-practices differences. An independent sample T -test was used to assess the differences between FAST and SLOW performances. Cohen’s d effect sizes (ES) were calculated to determine the magnitude of the differences. Statistical significance was set for p ? 0.05. Post-practice RSI and JH were significantly higher than pre-training values prior to the FAST but not the SLOW in-game performances. A significant difference was found for MD-1 RSI when comparing FAST and SLOW conditions ( p = 0.01; ES = 0.62). No significant between-group differences were obtained in JH ( p = 0.07; ES = 0.45). These findings could have implications on the facilitation of reactive strength qualities in conjunction with match-play. Practitioners should evaluate the placement of stimuli to potentiate athlete readiness for competition.

Keywords: neuromuscular; repeated jump; max speed (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2021
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