Effects of in-season short-term plyometric training on jumping and agility performance of basketball players
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ORIGINAL ARTICLE
Effects of in-season short-term plyometric training on jumping and agility performance of basketball players Abbas Asadi
Received: 16 June 2013 / Accepted: 11 October 2013 / Published online: 29 October 2013 Ó Springer-Verlag Italia 2013
Abstract The purpose of this investigation was to examine the effects of in-season plyometric training program on power and agility performance in young male basketball players. Twenty intermediate basketball players (age 20.1 ± 1.3 years; height 181.1 ± 8.5 cm; body mass 78.8 ± 5 kg) from Division I province team volunteered to participate in this study and were randomly divided into two groups: plyometric training (PL; n = 10) and control group (CG; n = 10). Plyometric training took place twice weekly for 6 weeks including three sets of 15 repetitions of depth jump (from 45-cm box height), vertical jump, and standing long jump, in addition to regular basketball practice of the team. Vertical jump (VJ), standing long jump (SLJ), 4 9 9-m shuttle run, agility t test (ATT), and Illinois Agility Test (IAT) were measured at preand post-training. The PL group showed significant improvement (P \ 0.05) in VJ (10.21 ± 2.72 cm), SLJ (21.15 ± 8.10 cm), 4 9 9-m shuttle run (0.62 ± 0.28 s), ATT (1.16 ± 0.57 s), and IAT (1.17 ± 0.65 s) after a 6-week training period and compared to CG. It can be concluded that a 6-week in-season plyometric training program has positive effects for improving power and agility performance in young male basketball players and this study provides support for coaches and basketball players who use this training method during competitive phase.
A. Asadi (&) Department of Physical Education and Sport Sciences, Payame Noor University, Tehran, P.O. Box 19395-3697, Islamic Republic of Iran e-mail: [email protected]
Keywords Basketball
Agility Plyometric exercise Jump
Introduction In basketball, the ability to generate maximal strength levels in the shortest period of time (muscular power) is necessary to gain high sport performance levels [1]. Moreover, agility is a vital component for the success in basketball players [2]. Two methods, plyometric and resistance training, are usually referred to in the literature as improving the most powerful strength characteristics (explosive strength) in basketball players. Several studies have demonstrated the positive effects of plyometric and resistance training to increase the levels of strength and power [3, 4]. Plyometric exercise, such as jumping, bounding, and hopping, is a widely used training mode to improve muscle power [5]. Plyometrics consists of a rapid stretching of a muscle (eccentric phase) immediately followed by a concentric or shortening action of the same muscle and connective tissue, and this phenomenon is called stretch– shortening cycle [5]. Plyometric training has been shown to improve jumping ability [4], agility [6], running economy [7], and strength [8]. However, a large number of studies investigated the effects of plyometric training efficacy on performance [2, 3, 6, 8
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