Brown G P, Donatelli R, Catlin P A, Wooden M J
Department of Rehabilitation Medicine, Emory University School of Medicine, Atlanta, GA, USA.
J Orthop Sports Phys Ther. 1995 May;21(5):258-67. doi: 10.2519/jospt.1995.21.5.258.
Little experimental data exist regarding the comparative biomechanical of various foot orthoses. This study evaluated the comparative effect of biomechanical orthoses and over-the-counter arch supports on controlling rearfoot pronation. Twenty-four patients with forefoot varus deformity were studied while walking on a treadmill. Two-dimensional, videotape motion analysis was used for studying rearfoot mechanics with three experimental conditions: 1) shoes only, 2) shoes plus arch supports, and 3) shoes plus biomechanical orthoses. The variables studied were: maximum pronation, calcaneal eversion, maximum pronation velocity, time-to-maximum pronation, and total pronation. No difference was noted in maximum pronation, calcaneal eversion, and total pronation between the three conditions. The data for maximum pronation velocity and time-to-maximum pronation were not reliable. Based on the results of this study, padded arch supports nor biomechanical orthoses can be preferentially recommended for their ability to control maximum pronation, calcaneal eversion, and total pronation during walking. Additional research is necessary to: 1) identify the biomechanical effects that are responsible for the clinical success of foot orthoses, and 2) determine better designs for controlling rearfoot movement.
关于各种足部矫形器的比较生物力学，现有的实验数据很少。本研究评估了生物力学矫形器和非处方足弓支撑对控制后足内旋的比较效果。对24名患有前足内翻畸形的患者在跑步机上行走时进行了研究。采用二维录像运动分析来研究后足力学，有三种实验条件：1）仅穿鞋子，2）穿鞋子加足弓支撑，3）穿鞋子加生物力学矫形器。所研究的变量包括：最大内旋、跟骨外翻、最大内旋速度、达到最大内旋的时间以及总内旋。三种条件下在最大内旋、跟骨外翻和总内旋方面均未发现差异。最大内旋速度和达到最大内旋时间的数据不可靠。基于本研究结果，对于在行走过程中控制最大内旋、跟骨外翻和总内旋的能力，加垫足弓支撑和生物力学矫形器都不能被优先推荐。需要进一步研究来：1）确定导致足部矫形器临床成功的生物力学效应，以及2）确定控制后足运动的更好设计。
