Dependence of the heat production of active muscle on the length of muscle

D. Lőrinczy, J. Tigyi

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Abstract

The dependence of the heat production of muscle on length was examined in isometric (with stretch) and isotonic (free of stretch) tetanuses of 2 s. The isomeric heat production was significantly greater than the isotonic 1 at any length of the muscle. The isometric heat coefficient (Fl0/Q, where F is the active tension development of muscle measured in pounds, l0 is the resting length measured in cm, Q is the heat production during the contraction at a given length measured in mcal) was not constant but depended on the length of the muscle, and had an extreme value near the resting length (l0). A close positive correlation was found between the active tension development and the heat production of the muscle.

Original languageEnglish
Pages (from-to)311-321
Number of pages11
JournalActa Biochimica et Biophysica Academiae Scientiarum Hungaricae
Volume11
Issue number4
Publication statusPublished - 1976

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Thermogenesis
Muscles
Muscle Tonus
Muscle Development
Hot Temperature

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Dependence of the heat production of active muscle on the length of muscle. / Lőrinczy, D.; Tigyi, J.

In: Acta Biochimica et Biophysica Academiae Scientiarum Hungaricae, Vol. 11, No. 4, 1976, p. 311-321.

Research output: Contribution to journalArticle

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