The popliteal fossa is marked, and the lateral malleolus is visible. Two large electrodes are used, along with a symmetric biphasic waveform, to allow activation of the whole gastroc soleus complex. The proximal electrode is placed over the origins of both the medial and the lateral gastroc. The distal electrode is placed over the soleus, where it is exposed. During stimulation active plantar flexion occurs, but because this subject is not weight bearing it would have to be graded two out of five.
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