Mechanism of Fatigue in Small Muscle Groups
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The issue of this paper is peripheral fatigue, in particular, fatigue due to muscular impairment during dynamic exercise with small muscle groups. Small muscle groups in this sense are of such a size that the change in concentration of circulating catecholamines even during exhausting exercise is negligible. Thus a small muscle group is, in a way, comparable to a muscle exercising in vitro. Another similarity is the large distribution volume for substances leaving the muscle. In humans, forearm or calf muscle exercise can be regarded as exercise with small muscle groups.
KeywordsRest Membrane Potential Peripheral Fatigue Cross Bridge Cycling Large Muscle Group Phosphorus Nuclear Magnetic Resonance
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