Analysis of longitudinal arch supports in stabilizing the arch of the foot

摘要: Two orthotic devices commonly prescribed as arch supports were studied to evaluate their efficacy in stabilizing the foot. Fourteen cadaveric feet mounted a loading frame, and an axial load of 222, 445, or 667 N was applied while three-dimensional positions talus, calcaneus, navicular, first metatarsal monitored with magnetic tracking system. Feet tested without use two supports. The indices used assess stabilization height joint rotation. Joint rotations consistently increased on application. Significant differences observed Inserts 1 2 talar abduction, dorsiflexion eversion, calcaneal tibial dorsiflexion. Arch significantly both inserts. Contrary previously published results, that provided measurable improvement stability simulated standing at ease position.