Engsberg J R
Human Performance Laboratory, University of Calgary, Alberta, CANADA.
Med Sci Sports Exerc. 1996 Mar;28(3):299-304. doi: 10.1097/00005768-199603000-00005.
Previous studies investigating motion of the ankle joint complex (AJC) and its relationship to chronic long-distance running injuries have quantified motion relative to a neutral position. No investigators have examined pronation during running relative to a total range of motion of the AJC. This investigation developed a method to quantify pronation during running from a total range of motion of the AJC. A six degree of freedom fixture quantified an active range of motion of the AJC. Common methods were used to obtain kinematic data of the AJC from running as a function of time. A method was developed to directly relate the range of motion data to the kinematic data. Fourteen overpronating and 10 normal runners were tested. Angular variables describing ranges of motion and maximum values were determined for each group, and an unpaired t-test was used to test for significant differences (P < 0.05). Results indicated overpronators had maximum eversion and abduction values during running that were significantly different from the normal runners. When measured from a neutral position no clear testable hypothesis was evident to identify runners predisposed to injury. When measured relative to the end ranges of motion a clear testable hypothesis was apparent. This method could be used to prospectively test the hypothesis.
以往关于踝关节复合体（AJC）运动及其与慢性长跑损伤关系的研究，已对相对于中立位的运动进行了量化。尚无研究者考察过跑步过程中相对于AJC总运动范围的内旋动作。本研究开发了一种方法，可从AJC的总运动范围量化跑步过程中的内旋动作。一种六自由度固定装置对AJC的主动运动范围进行了量化。采用常用方法获取跑步过程中AJC随时间变化的运动学数据。开发了一种方法，将运动范围数据与运动学数据直接关联起来。对14名内旋过度的跑步者和10名正常跑步者进行了测试。为每组确定了描述运动范围和最大值的角度变量，并使用非配对t检验来检验显著差异（P < 0.05）。结果表明，内旋过度者在跑步过程中的最大外翻和外展值与正常跑步者有显著差异。从中立位测量时，没有明显可检验的假说来识别易受伤的跑步者。相对于运动终末范围测量时，一个明显可检验的假说就出现了。该方法可用于前瞻性地检验这一假说。
