Abstract
The purpose of this study was to quantify the stability of ankle joint and promotion of muscle activity in walking with some kind of insoles which have different shock-absorbing capacities. To accomplish this, three-dimensional coordinate data, ground reaction force(GRF), and electromyogram data during stance phase were measured simultaneously. Eight healthy male subjects walked the ten meter laboratory walkway at his self-selected comfortable walking speed . Empirical results suggested that : (1) stability derived from maximum foot eversion angle value was not significantly different between consisting low-resilient material or not; (2) muscle(Gastrocnemius Lateral head) activity in second double limb support period was significantly different among conditions. From these results, that insoles with low-resilient material encourage muscle activity in propulsion phase with keeping stability.
