Affiliation:
1. High Institute of Sport and Physical Education. Kef. University of Jendouba, Tunisia
2. Université de Sousse, Faculté de Médecine de Sousse, Laboratoire de Physiologie et Explorations Fonctionnelles, Sousse, Tunisie
3. Heart Failure (LR12SP09) Research Laboratory, Farhat HACHED Hospital, Sousse, Tunisia
Abstract
Abstract
Background: In youth volleyball players, no previous study has investigated the relationships between the components of the force-velocity test (FVt) and those of the horizontal jump approach, speed test, and agility test. We aimed to determine the relationships that exist between lower-body power measured via a laboratory test (ie; FVt) and some field tests [horizontal jump (ie; 5-jump test, speed test (ie; 20-m sprint) and agility test (ie; pro-agility shuttle)] in youth volleyball players.
Methods: Thirty-one youth volleyball players were investigated for changing of direction (pro-agility shuttle), 5-jump test, and absolute/relative peak leg power (Ppeak) during the FVt. Speeds (s) during a 20-m sprint were measured at 5, 10, and 20 m (T5, T10 and T20, respectively). 5-jump test performance was expressed in absolute terms (5JTA, m), and relative to leg length (5JTLL) and body mass (5JTBM).
Results: This study identified i) “high” correlations between FVtPpeak (W) and 20-m sprint [T5 (r=-0.858), T10 (r=-0.707), and T20 (r=-0.762)], and pro-agility shuttle (r=-0.745), ii) “good” correlations between FVtPpeak (W.kg) and 5JTA(r=0.531), and iii) “fair” correlations between FVtPpeak (W) and 5JTA(r=0.499),between FVtPpeak (W.kg-0.67) and 5JTA (r=0.489), and 20-m sprint [T5(r=-0.370), T10(r=-0.364)].
Conclusions: Tthe pro-agility shuttle, 20-m sprint, and 5JT can be used to evaluate lower limb explosive power in youth volleyball players.
Publisher
Research Square Platform LLC
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