Affiliations: [a] Laboratory of Physiology, Faculty of Medicine of
Sousse, University of Sousse, Sousse, Tunisia | [b] Higher Institute of Sport and Physical Education,
University of Manouba, Manouba, Tunisia | [c] Mechanical Engineering and Complex Systems, ENSMA
Department, PRIMME Institute, University of Poitiers, Poitiers, France
Abstract: AIM: Was to study the relationships between leg peak power, leg
muscle volume and Shot-put performance in trained shot-putter. METHODS: Twenty-three shot-putter participated in this study.
Anthropometric measurements were carried out to estimate leg muscle volume. Leg
peak power and others biomechanical parameters (maximal force, maximal
velocity, optimal force, optimal velocity) were measured using leg
force-velocity test on ergocycle Monark, and the Optojump device. The shot-put
performances were measured during a simulated competition. RESULTS: We found significant correlations between peak power output
(W) measured during leg force-velocity Test on ergocycle (PPO-Ergo) and muscle
volume for men (r=0.79, p< 0.01) and women (r=0.72, p< 0.05). PPO-Ergo
(W, W/kg) was significantly correlated with the vertical jump performance
(r=0.56, p< 0.05; r=0.62, p< 0.01 respectively). Shot-put performance was
significantly correlated with PPO-Ergo (W, W/kg) and maximal force (N) (r=0.72,
p < 0.001; r=0.48, p< 0.05; r=0.85, p< 0.001 respectively). PPO as
estimated from the vertical jump using the Optojump system (PPO-Opto) was not
correlated to shot-put performances. CONCLUSION: The correlation between PPO-Ergo and shot-put
performance showed that the force-velocity Test on ergocycle constitute a
useful tool assessing PPO and others biomechanical parameters in shot-putter
athletes. However, the Optojump system seems to be not accurate for such
subjects. Fat mass constitute probably the limiting factor in shut-putter
during this test.
Keywords: Peak power, force-velocity test, Optojump test, counter movement jump, shot put
