Abstract
Summary
The use of the lateral branch of the omohyoideus muscle of the rat as a model fast-twitch preparation for rats of all ages is described. Uniform fiber type, simple muscle geometry, and small thickness permit measurement of mechanical properties, metabolic properties, average sarco-mere movements, and unequivocal interpretation of the results obtained.
The stimulating guidance of Dr. E. J. Masoro and the contributions of Dr. Tim Smith and Mrs. Bonnie Voss in the morphological analyses are gratefully acknowledged. The work was supported by NIH Grant RO1-AG00166 and by the Medical Research Service, V.A. Hospital, San Antonio, Texas.
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