A test of Raibert's symmetry equations in animal and human running

Joel A. Vilensky, Eva Gankiewicz, Josue Njock Libii

Research output: Contribution to journalArticlepeer-review


Based upon his work with robots, Raibert (12, 13) proposed that a specific class of symmetry equations may be important to animals and humans during steady-stae 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.

Original languageEnglish (US)
Pages (from-to)567-576
Number of pages10
JournalPhysiology and Behavior
Issue number4
StatePublished - Oct 1989


  • Locomotion
  • Raibert
  • Symmetry

ASJC Scopus subject areas

  • Physiology (medical)
  • Behavioral Neuroscience

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