Population
Frog semitendinosus muscles
Comparison
Stretching to various lengths beyond the rest… vs null
Design
Preclinical
Authors
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Supports calcium cycling energetics framework in amphibian muscle; leaves open translation to mammalian cardiac bioenergetics.
In frog semitendinosus muscles, activation heat reflects the energetics of calcium release and reaccumulation, which is produced by the hydrolysis of PC or ATP.
Homsher et al. (1972) studied this question.
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