Effects of plyometric training on passive stiffness of gastrocnemii and the musculo-articular complex of the ankle joint - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Scandinavian Journal of Medicine and Science in Sports Année : 2009

Effects of plyometric training on passive stiffness of gastrocnemii and the musculo-articular complex of the ankle joint

Résumé

This study aimed to determine simultaneously the effects of plyometric training on the passive stiffness of the ankle joint musculo-articular complex, the gastrocnemii muscle-tendon complex (MTC) and the Achilles tendon in order to assess possible local adaptations of elastic properties. Seventeen subjects were divided into a trained (TG) group and a control (CG) group. They were tested before and after 8 weeks of a plyometric training period. The ankle joint range of motion (RoM), the global musculo-articular passive stiffness of the ankle joint, the maximal passive stiffness of gastrocnemii and the stiffness of the Achilles tendon during isometric plantar flexion were determined. A significant increase in the jump performances of TG relative to CG was found (squat jumps: +17.6%, P=0.008; reactive jumps: +19.8%, P=0.001). No significant effect of plyometric training was observed in the ankle joint RoM, musculo-articular passive stiffness of the ankle joint or Achilles tendon stiffness (P>0.05). In contrast, the maximal passive stiffness of gastrocnemii of TG increased after plyometric training relative to CG (+33.3%, P=0.001). Thus, a specific adaptation of the gastrocnemii MTC occurred after plyometric training, without affecting the global passive musculo-articular stiffness of the ankle joint.
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hal-02129107 , version 1 (21-04-2023)

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Alexandre Fouré, Antoine Nordez, Marie Guette, Christophe Cornu. Effects of plyometric training on passive stiffness of gastrocnemii and the musculo-articular complex of the ankle joint. Scandinavian Journal of Medicine and Science in Sports, 2009, 19 (6), pp.811-818. ⟨10.1111/j.1600-0838.2008.00853.x⟩. ⟨hal-02129107⟩
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