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 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.
Baratta
R V
RV
Department of Orthopaedic Surgery, Louisiana State University Medical Center, New Orleans 70112, USA.
Solomonow
M
M
Nguyen
G
G
D'Ambrosia
R
R
D000818:Animals; D001696:Biomechanical Phenomena; D002415:Cats; D004558:Electric Stimulation; D066298:In Vitro Techniques; D007700:Kinetics; D008954:Models, Biological; D009119:Muscle Contraction; D018482:Muscle, Skeletal / Q000502:physiology*; D013977:Tibia; D016474:Weight-Bearing