Evaluation of Patellofemoral Pain Syndrome In Tai Chi practitioners

Abstract：Objective To evaluate and analyze the patellofemoral pain syndrome(PPS)in Tai Chi practitioners. Methods We checked range of motion and muscle strength of the 30 martial athletes from Beijing sports universit,and compared the condition of knee pain and no pain. Results At the range of motion,the left and right side of hip had significant difference at the abduction(P ﹤ 0. 05)and adduction(P ﹤ 0. 01). Ankle-dorsiflexion also showed significant difference(P ﹤ 0. 05),while the rest were not significant. Compare of the experimental group and control group showed dorsiflexion has significant difference (P ﹤ 0. 05),while the rest were not significant. The experimental group and control group has significant difference about knee flexion(P ﹤ 0. 05). The rest were not significant. Conclusion The group of muscle is imbalance at the sagittal plane and make the knee joint load increase. The deficiency of hip flexion and extorsion activity cause the mistake movements of hip ad-duction and knee eversion which is the main biomechanical mechanism of patellofemoral pain syndrome.