Three-dimensional kinematics of the forefoot, rearfoot, and leg without the function of tibialis posterior in comparison with normals during stance phase of walking
Three-dimensional kinematics of the forefoot, rearfoot, and leg without the function of tibialis posterior in comparison with normals during stance phase of walking
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DOI：
10.1016/s0268-0033(98)00034-5
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发表时间：
1999-01-01
影响因子：
1.8
通讯作者：
Gilleard, W
中科院分区：
文献类型：
--
作者：
Rattanaprasert, U;Smith, R;Gilleard, W
背景许多研究表明，胫骨后肌功能活动的缺乏会导致纵弓的变化，从而影响足部的运动。对足部运动的影响的定量描述尚未详细说明。描述与正常人相比，胫骨后肌功能障碍患者在步行站立期的腿部、后足和前足的三维运动。本研究将1例胫骨后肌功能缺失患者与10名正常人（男5名，女5名）的整体平均值进行了比较。受试者与10，12毫米的反光标记放置在他们的右腿，后脚和前脚，进行了五次试验，在10米的人行道上，以自选的速度行走。采用四摄像头三维运动分析系统和同步测力平台，记录人体各节段的三维运动和站立阶段的力变量。胫骨后肌功能障碍患者的后足相对于小腿的运动模式和运动范围以及前足相对于后足的运动模式和运动范围与正常人存在一定差异。大多数主要的差异发生在脚跟离地之前到脚趾离地，这段时间需要稳定的足弓。观察到的胫骨后肌功能障碍的情况下，在步行过程中与正常人相比，三维足部运动的差异是一致的预期机械后果的脚没有胫骨后肌的功能。唯一的例外是保持正常的后足内翻。
Background. Many studies have shown that lack of functional activity of tibialis posterior leads to changes in the longitudinal arch and affects the motion of the foot. A quantitative description of the affects on the motion of the foot in detail has not been reported.Objective. To describe three-dimensional motion of the leg, rearfoot and forefoot with tibialis posterior dysfunction during stance phase of walking in comparison with normals. This study compared one case without the function of tibialis posterior with the ensemble average of 10 normals (five males, five females).Methods. Subjects with 10, 12 mm retroreflective markers placed on their right leg, rearfoot and forefoot, performed five trials of walking at self-selected speed on a 10 m walkway. A four-camera three-dimensional motion analysis system and a synchronized force platform were used to record three-dimensional motions of the segments and force variables during stance phase of walking.Results. The patterns and range of motion of the rearfoot relative to the leg, and the forefoot relative to the rearfoot demonstrated some differences between the tibialis posterior dysfunction case and normals. Most of the major differences occurred from just prior to heel-off through to toe-off, the period when a stable arch would be required.Conclusion. The observed differences in the three-dimensional foot motions of the tibialis posterior dysfunction case compared with normals during walking were consistent with the expected mechanical consequences of a foot without the function of tibialis posterior. The one exception was the inversion of the rearfoot which remained normal.