Force-length relation of in-vivo human rectus femoris muscles.
In this paper the force-length relation of intact, in vivo, human rectus femoris muscles were determined experimentally and compared to a corresponding theoretical force-length relation based on the cross-bridge theory. The experimental force-length relation has a much smaller peak force and a much wider range of muscle fiber lengths where non-zero forces were observed than the theoretical relation. Possible reasons for the differences between the two force-length relations are discussed.
Herzog
W
W
Biomechanics Laboratory, University of Calgary, Alberta, Canada.
ter Keurs
H E
HE
D000328:Adult; D006801:Humans; D008297:Male; D009119:Muscle Contraction; D009132:Muscles / Q000502:physiology*; D009210:Myofibrils / Q000502:physiology; D005082:Physical Exertion; D013848:Thigh