Activation patterns and length changes in hindlimb muscles of the bullfrog (Rana catesbeiana) during jumping

We measured the electromyographic (EMG) activity of seven hindlimb muscles during jumping in the bullfrog Rana catesbeiana. The semimembranosus, gracilis major, gluteus magnus, adductor magnus, cruralis and plantaris longus were consistently active approximately 20-40 ms before any perceptible movem...

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Journal Title: Journal of Experimental Biology Vol. 201; no. 19; pp. 2763 - 2777
Authors: J.M. Olson, R.L. Marsh
Format: Article
Language: English
Published: 1998
Online Access: Full Text