Effects of In-Season Short-term Plyometric Training Program on Sprint and Jump Performance of Young Male Track Athletes.
J Strength Cond Res
; 29(8): 2128-36, 2015 Aug.
Article
en En
| MEDLINE
| ID: mdl-25647644
ABSTRACT
We studied the effect of supplementing normal in-season training by a 10-week lower limb plyometric training program (hurdle and depth jumping), examining measures of competitive potential (peak power output [PP], sprint running velocity, squat jump [SJ], countermovement jump [CMJ], drop jump [DJ], and lower limb muscle volume). The subjects (27 male track athletes, aged 11.9 ± 1.0 years; body mass 39.1 ± 6.1 kg; height 1.56 ± 0.02 m; body fat 12.8 ± 4.4%) were randomly assigned between a control (normal training) group (C; n = 13) and an experimental group (E; n = 14) who also performed plyometric training 3 times per week. A force-velocity ergometer test determined PP and SJ, and an Optojump apparatus evaluated CMJ height and DJ (height and power). A multiple-5-bound test assessed horizontal jumping, and video-camera analyses over a 40-m sprint yielded velocities for the first step (VS), the first 5 m (V5m), and between 35 and 40 m (Vmax). Leg muscle volume was estimated anthropometrically. Experimental group showed gains relative to C in SJ height (p < 0.001); CMJ height (p < 0.01); DJ height and power relative to body mass (p < 0.01 for both); and all sprint velocities (p < 0.01 for VS and V(5m, p) ≤ 0.05 for Vmax). There was also a significant increase (p < 0.01) in thigh muscle volume, but leg muscle volume, thigh cross-sectional area, and PP remained unchanged. We conclude that adding plyometric training improved important components of athletic performance relative to standard in-season training in young runners.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Carrera
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Atletismo
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Músculo Esquelético
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Rendimiento Atlético
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Ejercicio Pliométrico
Tipo de estudio:
Clinical_trials
Límite:
Child
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Humans
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Male
Idioma:
En
Revista:
J Strength Cond Res
Asunto de la revista:
FISIOLOGIA
Año:
2015
Tipo del documento:
Article
País de afiliación:
Canadá