Effect of the muscle activation level distribution on normal stress field: a numerical study

38ième congrès de la Société de Biomécanique francophone, MARSEILLE, FRANCE, 04-/09/2013 - 06/09/2013Deformable approaches to model muscles with contractile capability are being investigated more and more. The effects on the strain field of the muscle architecture (Blemker et al. 2005) and of the passive material properties (Hodgson et al. 2012) have been specifically studied. According to the contraction resulting from the recruitment of different fibre types in variable proportion (Henneman et al. 1965) with heterogeneity of the motor unit activation (English et al. 1993), this study aims to analyse the influence of the activation level distribution through the muscle cross section