At first glance, there does not seem to be any pattern, but when the three moments are summed, a somewhat symmetrical extensor curve results, which David Winter* terms the Support Moment:
Winter* noticed that the coefficient of variation (CV) of the support moment (14%) is lower than the individual CVs of ankle, knee and hip (16, 37 and 33%, respectively). Notice, too, that the support moment pattern almost exactly matches the pattern of the vertical ground reaction force:
*Winter DA (1980) Overall Priciple of Lower Limb Support during stance
phase of gait. J Biomech. 13: 923-927.
Email your answers to [n/a]
Back to Teach-in page