title: A test of Raibert's symmetry equations in animal and human running.
abstract: Based upon his work with robots, Raibert proposed that a specific class of symmetry equations may be important to animals and humans during steady-state running. In a test of this hypothesis, Raibert found good agreement with his predictions. However, his test was limited to one cat at two speeds and a human at a single speed. For the present study, we duplicated Raibert's methodology and tested his predictions for three cats, two monkeys, and a human at a variety of speeds. Our results indicate that body and limb movements in animals and humans generally are not in agreement with predictions based on the symmetry equations.
authors.affiliation: Department of Anatomy, Indiana University School of Medicine, Fort Wayne 46805.
authors.forename: J A
authors.initials: JA
authors.lastname: Vilensky
authors.forename: E
authors.initials: E
authors.lastname: Gankiewicz
authors.forename: J N
authors.initials: JN
authors.lastname: Libii
mesh_terms: D000054:Acceleration; D000328:Adult; D000818:Animals; D001827:Body Height / Q000502:physiology; D002415:Cats; D002522:Chlorocebus aethiops; D006801:Humans; D008124:Locomotion / Q000502:physiology*; D008297:Male; D008433:Mathematics; D008959:Models, Neurological; D009424:Nervous System Physiological Phenomena; D004856:Postural Balance / Q000502:physiology*; D011187:Posture; D012420:Running