Data from: Neuromechanical coupling within the human triceps surae and its consequence on individual force sharing strategies

Published on 2018-09-13T19:27:00Z (GMT) by
Little is known about the factors that influence the coordination of synergist muscles that act across the same joint, even during single-joint isometric tasks. The overall aim of this study was to determine the nature of the relationship between the distribution of activation and the distribution of force-generating capacity among the three heads of the triceps surae (soleus [SOL], gastrocnemius medialis [GM] and lateralis [GL]). Twenty volunteers performed isometric plantarflexions during which the activation of GM, GL and SOL was estimated using electromyography (EMG). Functional muscle physiological cross-sectional area (PCSA) was estimated using imaging techniques and was considered as an index of muscle-force generating capacity. The distribution of activation and PCSA among the three muscles varied greatly between participants. A significant positive correlation between the distribution of activation and the distribution of PCSA was observed when considering the two bi-articular muscles at intensities ≤50% of the maximal contraction (0.51

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Crouzier, Marion; Lacourpaille, Lilian; Nordez, Antoine; Tucker, Kylie; Hug, Francois (2018): Data from: Neuromechanical coupling within the human triceps surae and its consequence on individual force sharing strategies. figshare. Collection.