Isometric tension and myofilamental cross-sectional area in striated muscle
- 30 April 1962
- journal article
- research article
- Published by American Physiological Society in American Journal of Physiology-Legacy Content
- Vol. 202 (5) , 824-826
- https://doi.org/10.1152/ajplegacy.1962.202.5.824
Abstract
Isometric tension in tetanically stimulated calf muscles was examined in vivo in 3 rabbits and 18 cats. In two cats the gastrocnemius and soleus muscles were studied separately. After determination of the isometric tension the muscles were dissected and their water content, total N content, and protein composition were analyzed. On this basis it was possible to calculate that part of the cross-sectional area of the muscle fibers which consisted of myofilaments. The recorded maximum isometric tension was related to the myofilamental cross-sectional area. Under the given experimental conditions, the calf muscles developed a tension of 108 ± 5 g/mm2 cross-sectional area. Higher values resulted from tests of individual calf muscles than from combined muscles.Keywords
This publication has 1 reference indexed in Scilit:
- Die Länge und die Spannung des Muskels1Skandinavisches Archiv Für Physiologie, 1892