European Journal of Applied Physiology

, Volume 111, Issue 3, pp 539–548 | Cite as

Effects of plyometric training on both active and passive parts of the plantarflexors series elastic component stiffness of muscle–tendon complex

  • Alexandre Fouré
  • Antoine Nordez
  • Peter McNair
  • Christophe Cornu
Original Article


The aims of this study were to determine the effects of plyometric training on both active and passive parts of the series elastic component (SEC) stiffness, and on geometrical parameters [i.e., muscle architecture, muscle and tendon cross-sectional area (CSA)] of the plantarflexors muscle–tendon complex to assess possible specific adaptations of the elastic properties. Nineteen subjects were randomly divided into a trained group and a control group. Active and passive components of the SEC stiffness were determined using a fast stretch during submaximal voluntary isometric plantarflexor activity. Geometrical parameters of the triceps surae muscles and the Achilles tendon were determined using ultrasonography. A significant increase in the passive component of the SEC stiffness was found (p < 0.05). In contrast, a significant decrease in the active part of the SEC stiffness was observed (p < 0.05). No significant changes in plantarflexor muscles CSA, architecture and Achilles tendon CSA were seen (p > 0.05). Thus, plyometric training led to specific adaptations within each part of the SEC. Theses adaptations could increase both the efficiency of the energy storage–recoil process and muscular tension transmission leading to an increase in jump performances.


Stiffness Cross-sectional area Muscle architecture Achilles Tendon Jump training 



The authors thank the volunteers who accepted to participate in this study and Jean Hug for drawing (Fig. 1). This study was supported by Grants from the AFM (Association Française contre les Myopathies, Grant n° 13923), Nantes Métropole and the RSPDL network (Recherche et Sport en Pays de la Loire).

Supplementary material

421_2010_1667_MOESM1_ESM.doc (126 kb)
Supplementary material 1 (DOC 126 kb)


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Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  • Alexandre Fouré
    • 1
  • Antoine Nordez
    • 1
  • Peter McNair
    • 2
  • Christophe Cornu
    • 1
  1. 1.Laboratoire “Motricité, Interactions, Performance”Université de Nantes, UFR STAPSNantes Cedex 3France
  2. 2.Health and Rehabilitation Research InstituteAuckland University of TechnologyAuckland 1New Zealand

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