The scaling or ontogeny of human gait kinetics and walk-run transition: the implications of work v.s peak power minimization

A simple model is developed to find vertical force profiles and stance durations that minimize either limb mechanical work or peak power demands during bipedal locomotion. The model predicts that work minimization is achieved with a symmetrical vertical force profile, consistent with previous models and observations of adult humans, and data for 487 participants (predominantly 11-18 years old) required to walk at a range of speeds at a Science Fair. Work minimization also predicts the discrete walk-run transition, familiar for adult humans.

Source: Journal of Biomechanics - September 17, 2018 Category: Biomedical Science Authors: J.R. Usherwood, T.Y. Hubel, B.J.H. Smith, Z.T. Self Davies, G. Sobota Source Type: research