Spring-Like Properties of Muscles and Reflexes in Running

摘要: The idea that running is essentially bouncing may be an ancient one, but the first good quantitative evidence for it was presented by Cavagna et al. (1976). Force-plate measurements of steady- speed human walking and were used to calculate fluctuations kinetic energy gravitational potential body’s center mass. In walking, calculations showed changes in forward out phase with energy, so total mechanical mass nearly steady throughout a step. running, found phase, large sum two took place during A simple way put this say body highest at moment least, mid-step (when hips pass over ankles). as seen strobe photograph Figure 37.1, lowest mid-step, when least.