Strain of the musculus interosseus medius and its rami extensorii in the horse, deduced from in vivo kinematics. Jansen, M. O., van Buiten, A., van den Bogert, A. J., & Schamhardt, H. C. Acta Anatomica, 147(2):118–124, 1993. doi abstract bibtex The in vivo strains of the musculus interosseus medius (suspensory ligament) and its rami extensorii (extensor branches) in the forelimb of the horse were determined from angular changes of the metacarpophalangeal and the distal interphalangeal joints. For this purpose, regression models were fitted to strains and joint angle combinations measured in in vitro limb loading experiments. The in vivo strains were computed from the kinematics of 8 horses at the walk, the trot and the canter. It was found that the extensor branches were strained about 1.0% at hoof impact, which indicates that they passively extend the interphalangeal joints just prior to impact and prevent flexion of the pastern joint just thereafter. The maximal strain of the suspensory ligament amounted to 3.4% at the walk, 5.6% at the trot and 6.3% at a slow canter.
@article{jansen_strain_1993,
title = {Strain of the musculus interosseus medius and its rami extensorii in the horse, deduced from in vivo kinematics},
volume = {147},
copyright = {All rights reserved},
issn = {0001-5180},
doi = {10.1159/000147491},
abstract = {The in vivo strains of the musculus interosseus medius (suspensory ligament) and its rami extensorii (extensor branches) in the forelimb of the horse were determined from angular changes of the metacarpophalangeal and the distal interphalangeal joints. For this purpose, regression models were fitted to strains and joint angle combinations measured in in vitro limb loading experiments. The in vivo strains were computed from the kinematics of 8 horses at the walk, the trot and the canter. It was found that the extensor branches were strained about 1.0\% at hoof impact, which indicates that they passively extend the interphalangeal joints just prior to impact and prevent flexion of the pastern joint just thereafter. The maximal strain of the suspensory ligament amounted to 3.4\% at the walk, 5.6\% at the trot and 6.3\% at a slow canter.},
language = {eng},
number = {2},
journal = {Acta Anatomica},
author = {Jansen, M. O. and van Buiten, A. and van den Bogert, A. J. and Schamhardt, H. C.},
year = {1993},
pmid = {8379292},
keywords = {Animals, Horses, Ligaments, Articular, Locomotion, Metatarsophalangeal Joint, Models, Biological, Weight-Bearing},
pages = {118--124},
}
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