Nishikawa T, Kurosaka M, Yoshiya S, Lundin T M, Grabiner M D
Department of Orthopaedic Surgery, Kobe University School of Medicine, 7-5-2 Kusunokicho, Chuo-ku, Kobe 650-0017, Japan.
Int Orthop. 2002;26(6):381-5. doi: 10.1007/s00264-002-0362-4. Epub 2002 Sep 18.
We performed a gait analysis of 12 healthy subjects in order to analyse the rear foot pronation-supination angle and the shift of centre of pressure (COP) during walking. We used a video system and a force plate and examined the effects of semi-rigid Air-Stirrup brace, lace-up cloth RocketSoc brace, ankle taping and no bracing. Both the lace-up cloth brace and taping increased the maximum pronation angle during the stance phase. The lace-up cloth brace alone was associated with a larger maximum pronation velocity. With the lace-up cloth brace and taping, the COP was more laterally placed, allowing greater leverage about the subtalar axis and thus increasing the tendency toward pronation. The two braces and the tape did not similarly affect ankle joint biomechanics during gait. The ability to reduce excessive amounts of pronation is an important design consideration for prophylactic ankle supports.
我们对12名健康受试者进行了步态分析，以分析行走过程中后足内旋-外旋角度和压力中心（COP）的移动情况。我们使用了视频系统和测力板，并研究了半刚性空气支撑矫形器、系带式布质RocketSoc矫形器、踝关节贴扎以及不进行支撑的效果。系带式布质矫形器和贴扎都增加了站立期的最大内旋角度。仅系带式布质矫形器与更大的最大内旋速度相关。使用系带式布质矫形器和贴扎时，COP在更外侧的位置，使得围绕距下轴的杠杆作用更大，从而增加了内旋倾向。这两种矫形器和贴扎在步态期间对踝关节生物力学的影响并不相同。减少过度内旋的能力是预防性踝关节支撑装置的一个重要设计考量因素。
