太极倒卷肱对膝关节内侧间室应力的调节作用

Effectiveness of Taichi Daojuangong in Regulation the Stress of the Medial Compartment of the Knee Joint

目的:研究太极倒卷肱对膝关节内侧间室应力的调节作用。方法:利用三维动作捕捉系统及三维测力台比较20名健康人在正常步行与练习太极倒卷肱过程中膝关节最大屈曲角度(Knee Flexion),膝关节内收力矩(Knee Adduction Moment),膝关节内收角冲量(Knee Adduction Angular Impulse),踝关节外翻力矩(Ankle Valgus Moment),下肢前进角度(Foot Progression)。结果:相较于正常步行情况,进行太极倒卷肱练习时膝关节内翻力矩,膝关节内翻角冲量及膝关节最大屈曲角度显著下降(P<0.05),踝关节外翻力矩及下肢前进角度明显上升(P<0.05)。结论:太极倒卷肱动作练习可有效地降低膝关节内侧间室的应力。

Objective：To investigate the effect of Taichi Daojuanhong in regulation the stress of the medial compartment of the knee joint. Methods：We conducted a crossover randomized design to compare kinematics and kinetics parameters of 20 healthy subjects in two different Conditions： normal walking and Taichi Daojuangong. The kinetics and kinematics data were included knee flexion,knee adduction moment, knee adduction angular impulse, ankle valgus moment, and foot pro- gression. Results：Compared to the normal walking condition,the knee flexion,knee adduction moment and knee adduction angular impulse in Taichi Daojuanhong were decreased significantly（P〈0.05）, but the ankle valgus moment and foot pro- gression were increased（P〈0.05）. Conclusion： Taichi Daojuangong is effective to release the stess of the medial compart- ment of the knee joint.