L’intérêt du travail excentrique
Yann Le Meur nous résume deux études intéressantes sur l’entrainement et l’importance du travail excentrique :
MAJ des protocoles de prise en charge des blessures aigües (2019)
« Quand je m’étire il se passe quoi ? »
D’après l’étude ci-dessous, il semblerait que les effets des étirements soit avant tout des adaptations neurologiques et non une modification de la structure musculaire.
The effects of 6 weeks of constant-angle muscle stretching training on flexibility and muscle function in men with limited hamstrings’ flexibility. Eur J Appl Physiol119, 1691–1700 (2019). https://doi.org/10.1007/s00421-019-04159-w de Brusco, C.M., Blazevich, A.J. & Pinto, R.S.
Conclusion
» The flexibility training induced significant increases in ROM alongside increases in peak passive torque (stretch tolerance) and the ROM at which stretch was first perceived. However, this occurred without changes in muscle–tendon mechanical properties or transfer to the untrained limb (CL). These results suggest that limb-specific ROM increases were underpinned by neural adaptations. «