双膝骨关节炎对女性老年人踝关节策略动态平衡能力的影响

Effects of Bilateral Knee Osteoarthritis on Dynamic Balance Ability of Ankle Strategy in Aged Women

目的探索双膝骨关节炎(knee osteoarthritis,KOA)对女性老年人踝关节策略动态平衡能力的影响。方法采用动态平衡能力测试仪测试KOA患者(KOA组)和一般老年人(对照组)平衡得分、旋转速度、最大旋转速度、目标球在各区域的停留时间百分比等指标,并进行对比分析。结果 KOA组的平衡得分低于对照组;KOA组在水平方向上的动态平衡控制能力与对照组基本一致,但是在垂直方向上的动态平衡控制能力弱于对照组。双KOA降低了女性老年人踝关节策略动态平衡能力,它不会影响女性老年人的左右对称平衡能力,但是会降低其前后对称平衡能力。结论双KOA女性老年人可能更容易向前或者向后跌倒,不容易发生侧向跌倒。对双KOA女性老年患者,可以通过增强踝关节力量、本体感觉、反应能力等方法,防范动态平衡能力降低可能导致的跌倒,尤其是前后方向的跌倒。

Objective To investigate the effect of bilateral knee osteoarthritis( KOA) on dynamic balance ability of ankle strategy in aged women. Methods The dynamic balance ability tester was used to test the balance score,the rotation speed,the maximum rotation speed,and the percentage of the target ball’s residence time in each area of KOA patients( KOA group) and the general elderly( control group),and a comparative analysis between groups was conducted. Results The balance score of KOA group was lower than that of control group;the dynamic balance control ability of KOA group in the horizontal direction was basically the same as that of control group,but the dynamic balance control ability of KOA group in the vertical direction was weaker than that of control group.Bilateral KOA reduced dynamic balance ability of ankle strategy in the aged women.It could not affect the left-right symmetric balance ability of the aged women,but it would reduce its forward-backward symmetrical balance ability. Conclusions Bilateral KOA aged women may be more likely to fall forward or backward,while not easy to fall laterally. For elderly female patients with bilateral KOA,methods such as strengthening ankle joint strength,proprioception and responsiveness can be used to prevent falls that may be caused by reduced dynamic balance ability,especially falls in the forward and backward directions.