Effect of different ankle joint positions on medial gastrocnemius muscle fiber strains during isometric plantarflexion
Brandon T. Cunnane,
Usha Sinha,
Vadim Malis
et al.
Abstract:Muscle force production is influenced by muscle fiber and aponeurosis architecture. This prospective cohort study utilizes special MR imaging sequences to examine the structure–function in-vivo in the Medial Gastrocnemius (MG) at three-ankle angles (dorsiflexion, plantar flexion—low and high) and two sub-maximal levels of maximum voluntary contraction (25% and 50%MVC). The study was performed on 6 young male participants. Muscle fiber and aponeurosis strain, fiber strain normalized to force, fiber length and p… Show more
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