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Titre : | Effects of medicine ball mass on the intensity of 90°/90° plyometric throwing exercise (2019) |
Auteurs : | Bryan L. Riemann ; Nick Hipko ; Wayne A. Johnson ; et al. |
Type de document : | Article |
Dans : | Physical therapy in sport (Vol. 40, November 2019) |
Article en page(s) : | p. 238-243 |
Note générale : | https://doi.org/10.1016/j.ptsp.2019.10.002 |
Langues: | Anglais |
Descripteurs : |
HE Vinci Epaule ; Membre supérieur ; Réadaptation ; Traitement par les exercices physiques |
Résumé : |
Objectives
To quantify the effects of medicine ball mass (1 kg, 1.5 kg, 2 kg) on the intensity of 90°/90° plyometric throwing exercise. Study design Controlled laboratory study. Setting Biomechanics laboratory. Participants Fifteen physically active collegiate aged men. Main outcome measures Kinematics of the upper extremity were collected during completion of eight to ten repetitions of 90°/90° plyometric throwing exercise with three different mass medicine balls. Four parameters, medicine ball release and contact momentum, time-to-rebound, and contact time, were computed for each selected repetition and used for statistical analysis. Results Ball mass did not significantly influence time-to-rebound (P = .718) and had a small (less than 0.05s) effect on ball contact time (P = .039). Ball release momentum was significantly greater (P Conclusions These results document the effects of increasing medicine ball mass during 90°/90° plyometric throwing exercise and provide evidence for designing upper extremity plyometric training programs. Based on ball contact momentum being less than ball release momentum, as well as ball mass having greater influence on ball release velocity, we suggest that 90°/90° plyometric throwing exercise is a safe exercise. |
Disponible en ligne : | Oui |
En ligne : | https://login.ezproxy.vinci.be/login?url=https://www.sciencedirect.com/science/article/abs/pii/S1466853X19302883#! |