[Electromyography of the leg. Study during various segmental movements].

Using anatomical landmarks as fixed points, the authors have squared the cutaneous surface ot the leg into areas which cover the following superficial muscles: m. gastrocnemius, caput mediales et caput laterales, m. peroneus longus, m. tibialis anterior, m. soleus. The electrical surface activity, collected in these areas for some segmented movements (dorsal and plantar flexions with and without load) was integrated and quantified. The individual and inter-individual variability in electrical activity was obtained from six subjects and discussed. The typical electromyography of the leg was established for the four segmental movements investigated. This analysis had also lead to determine the most suitable electrode site for each of the superficial muscles. This study confirms the functional role classically attributed to these various muscles.