强化髋内收肌等长肌力训练对功能性踝关节不稳的效果

Effect of intensive isometric strength training of hip adductor on functional ankle instability

目的探讨强化髋内收肌等长肌力训练对功能性踝关节不稳者平衡能力影响。方法 2019年11月至2020年1月,从深圳某高校中招募功能性踝关节不稳的大学生18例,按照随机数字表法分为对照组(n=9)和试验组(n=9)。两组均进行踝关节稳定训练,试验组增加髋内收肌等长肌力训练。每次1 h,每周3次,共4周。训练前后分别进行坎伯兰踝关节不稳评定问卷(CAIT)、 Y平衡测试(YBT)、Balance-check平衡设备和Back-check髋内收肌最大等长肌力测试。结果训练后,两组CAIT评分、YBT各方向距离、Balance-check的得分较训练前提高(t>2.540, P<0.05);试验组Back-check髋内收肌肌力较训练前显著提高(t=8.485, P<0.001)。试验组CAIT评分、YBT (后内侧、外侧)距离、Balance-check得分、Back-check髋内收肌肌力的训练前后差值均大于对照组(t>2.168, P<0.05),平均旋转角速度、最大旋转角速度和平衡等级差值均小于对照组(t>2.804, P<0.05)。结论加强髋内收肌等长肌力训练更有利于功能性踝关节不稳者平衡能力恢复。

Objective To explore the effect of intensive hip adductor isometric strength training on the balance ability of functional ankle joint instability.Methods From November,2019 to January,2020,18 college students with functional ankle instability were recruited from a university in Shenzhen and randomly divided into control group(n = 9) and experimental group(n = 9).Both groups received ankle stability training,and the experimental group received isometric muscle strength training of hip adductor in addition,one hour a time,three times a week,for four weeks.The Cumberland Ankle Instability Assessment Questionnaire(CAIT),Y Balance Test(YBT),Balance-check balance equipment and Back-check hip adductor maximum isometric strength test were performed before and after training.Results After training,the scores of CAIT,YBT and balance-check increased in both groups(t > 2.540,P < 0.05);the strength of adductor hip muscle significantly increased in the experimental group(t = 8.485,P < 0.001).The dvalue of CAIT score,YBT distance,the score of Balance-check,and the strength of adductor hip muscle were more in the experimental group than in the control group(t > 2.168,P < 0.05);the d-value of the average rotation speed,the maximum rotation speed and the balance level were less in the experimental group than in the control group(t > 2.804,P < 0.05).Conclusion Hip adductor isometric muscle strength training may promote the recovery of the balance after functional ankle instability.