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Representative electromyographic traces of selected forelimb muscles in Phyllomedusa bicolor. Grey bars represent the ipsilateral contact phase; yellow bars represent the swing phase. Note the activity of the m. palmaris profundus, important in flexing the hand and adducting the fingers during the contact phase. The m. deltoideus and the m. flexor i. s. proprius, on the other hand, show the greatest activity during the swing phase, suggesting flexion at the elbow.
