Stacoff A, Nigg B M, Reinschmidt C, van den Bogert A J, Lundberg A
Human Performance Laboratory, The University of Calgary, Canada.
J Biomech. 2000 Nov;33(11):1387-95. doi: 10.1016/s0021-9290(00)00116-0.
Barefoot running kinematics has been described to vary considerably from shod running. However, previous investigations were typically based on externally mounted shoe and/or skin markers, which have been shown to overestimate skeletal movements. Thus, the purpose of this study was to compare calcaneal and tibial movements of barefoot versus shod running using skeletal markers. Intracortical bone pins with reflective marker triads were inserted under standard local anesthetic into the calcaneus and tibia of five healthy male subjects. The subjects ran barefoot, with a normal shoe, with three shoe soles and two orthotic modifications. The three-dimensional tibiocalcaneal rotations were determined using a joint coordinate system approach. Test variables were defined for eversion and tibial rotation. The results showed that the differences in bone movements between barefoot and shod running were small and unsystematic (mean effects being less than 2 degrees ) compared with the differences between the subjects (up to 10 degrees ). However, differences may occur during midstance when extreme shoe modifications (i.e. posterior orthosis) are used. It is concluded that calcaneal and tibial movement patterns do not differ substantially between barefoot and shod running, and that the effects of these interventions are subject specific. The result of this in vivo study contrasts with previous investigations using skin and shoe mounted markers and suggests that these discrepancies may be the result of the overestimation with externally mounted markers.
据描述，赤足跑步的运动学与穿鞋跑步有很大差异。然而，以往的研究通常基于外部安装的鞋和/或皮肤标记物，而这些标记物已被证明会高估骨骼运动。因此，本研究的目的是使用骨骼标记物比较赤足跑步与穿鞋跑步时跟骨和胫骨的运动。在标准局部麻醉下，将带有反光标记三联体的皮质内骨钉插入五名健康男性受试者的跟骨和胫骨。受试者分别进行赤足跑步、穿普通鞋跑步、穿三种鞋底的鞋跑步以及两种矫形鞋垫跑步。使用关节坐标系方法确定三维胫跟旋转。为外翻和胫骨旋转定义了测试变量。结果表明，与受试者之间的差异（高达10度）相比，赤足跑步和穿鞋跑步之间的骨运动差异较小且无系统性（平均效应小于2度）。然而，当使用极端的鞋类改良（即后侧矫形器）时，在支撑中期可能会出现差异。研究得出结论，赤足跑步和穿鞋跑步时跟骨和胫骨的运动模式没有实质性差异，并且这些干预的效果因个体而异。这项体内研究的结果与以往使用皮肤和鞋上安装标记物的研究结果形成对比，表明这些差异可能是外部安装标记物高估的结果。
