Cornwall M W, Murrell P
Department of Physical Therapy, Northern Arizona University, Flagstaff 86011.
J Am Podiatr Med Assoc. 1991 May;81(5):243-7. doi: 10.7547/87507315-81-5-243.
The single-limb sway of 20 individuals with a history of unilateral inversion ankle sprain was compared to that of a control group of 30 individuals without a history of ankle sprain. Using a force platform to obtain center-of-pressure data, the linear distance traveled (mm) and the mean power frequency, (Hz) of postural sway were calculated for each subject. The results of this study showed that postural sway amplitude was significantly greater in the injured group than in the control group. Contrary to previous investigations, this study indicates that individuals with a history of inversion ankle sprain are less stable in single-limb stance compared to a noninjured control group. This decreased stability is evident as much as 2 years following the injury.
将20名有单侧内翻性踝关节扭伤病史的个体的单腿摇摆情况与30名无踝关节扭伤病史的对照组个体进行比较。使用测力平台获取压力中心数据，计算每个受试者姿势摇摆的行进直线距离（毫米）和平均功率频率（赫兹）。本研究结果表明，受伤组的姿势摇摆幅度明显大于对照组。与先前的研究相反，本研究表明，有内翻性踝关节扭伤病史的个体在单腿站立时比未受伤的对照组稳定性更差。这种稳定性下降在受伤后长达2年都很明显。
