Characterization of load–length–velocity relationships of nine different skeletal muscles

A three-dimensional characterization of muscle load, length and velocity was obtained from nine muscles in the cat's hind limb through contractions where the muscles shortened against inertial–gravitational loads. A model based on the load–length characteristic and second-order dynamics describ...

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Bibliographic Details
Published in:	Journal of biomechanics Vol. 33; no. 3; pp. 381 - 385
Main Authors:	Baratta, R.V, Solomonow, M, Nguyen, G, D'Ambrosia, R
Format:	Journal Article
Language:	English
Published:	United States Elsevier Ltd 01-03-2000
Subjects:	Animals Biomechanical Phenomena Cats Electric Stimulation Gravitational effects In Vitro Techniques Kinetics Models, Biological Muscle Contraction Muscle, Skeletal - physiology Musculoskeletal system Physiological models Space life sciences Tibia Weight-Bearing
Online Access:	Get full text
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Summary:	A three-dimensional characterization of muscle load, length and velocity was obtained from nine muscles in the cat's hind limb through contractions where the muscles shortened against inertial–gravitational loads. A model based on the load–length characteristic and second-order dynamics describes shortening velocity related to load and length under these conditions. We conclude that this model describes well contraction velocity as function of length and load under inertial–gravitational load conditions, with correlation coefficients higher than 0.9 in most of the tested muscles.
Bibliography:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 ObjectType-Article-1 ObjectType-Feature-2
ISSN:	0021-9290 1873-2380
DOI:	10.1016/S0021-9290(99)00169-4