Static or isometric contraction produces significant force without any considerable change in the length of the muscle. ... Since ATP is the only energy source that can be used directly for contractile events, there must be some means by which it is regenerated continuously so that muscular contraction is sustained.
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Isometric Contraction
Static or isometric contraction produces significant force without any considerable change in the length of the muscle. ... Since ATP is the only energy source that can be used directly for contractile events, there must be some means by which it is regenerated continuously so that muscular contraction is sustained.