Reinschmidt C, Stacoff A, Stüssi E
Biomechanics Laboratory, Swiss Federal Institute of Technology (ETH), Schlieren.
Med Sci Sports Exerc. 1992 Dec;24(12):1390-5.
Lateral movements of the leg and foot were filmed from behind to evaluate court shoes. Inversion/eversion may be an indicator of potential injuries, but estimates of actual inversion/eversion have typically been measured as the angular displacement of marker pairs on the lower leg and on the shoe. The purpose of this study was to measure the shoe movement versus the heel movement inside the shoe in order to determine the appropriateness of using shoe markers to represent the heel position. Two windows were cut into the heel counter of the shoe to show the heel position in addition to shoe position. The subjects were filmed from behind during a lateral side-stepping movement. The difference between the shoe and heel position was [corrected] statistically significant. The average maximum change in heel inversion inside the shoe was 13.3 +/- 3.8 degrees, compared with 30.7 +/- 6.2 degrees for the shoe. In addition, the maximum change in heel inversion in a barefoot movement was 10.1 +/- 3.1 degrees. The results suggest that for a lateral movement shoe markers do not accurately represent the position of the heel, and heel movement inside a shoe is similar to a barefoot movement. Skin markers on the heel as observed through windows in the shoe give a better indication of the actual position of the calcaneus than do markers placed directly on the shoe.
从后方拍摄腿部和足部的横向运动，以评估宫廷鞋。内翻/外翻可能是潜在损伤的一个指标，但实际内翻/外翻的估计通常是通过测量小腿和鞋子上标记点对的角位移来进行的。本研究的目的是测量鞋子的运动与鞋内足跟的运动，以确定使用鞋上标记来表示足跟位置的适当性。在鞋跟杯上切出两个窗口，除了显示鞋子位置外，还可显示足跟位置。在受试者进行横向侧步运动时，从后方拍摄他们。鞋子和足跟位置之间的差异经统计学校正后具有显著性。鞋内足跟内翻的平均最大变化为13.3±3.8度，而鞋子的为30.7±6.2度。此外，赤脚运动时足跟内翻的最大变化为10.1±3.1度。结果表明，对于横向运动，鞋上标记不能准确代表足跟的位置，并且鞋内足跟的运动与赤脚运动相似。通过鞋上窗口观察到的足跟皮肤标记比直接放置在鞋子上的标记能更好地指示跟骨的实际位置。
