Dynamic principles of center of mass in human walking

摘要

@@ Background: These idiosyncracies are revealing but they dramatically complicate our understanding of gait, making it impossible for biomechanicists to agree on the fundamental properties of gait. Strange as it may seem, there is no agreement on the invariant parameters that all human walkers must share. Without this definition, it is hard to model gait accurately and impossible to agree on how best to rehabilitate people with an impaired gait. Assuming the ground reaction force of both feet to be the same in the same phase of a stride cycle, we establish the relationships between the time of initial foot contact and the ground reaction force, acceleration, velocity, displacement and average kinetic energy of center of mass.