踝关节贴扎在优势侧落地动作中对膝关节生物力学特性的影响

Effects of Ankle Taping on Knee Biomechanics during Dominant-Legged Drop Landing

目的研究踝关节贴扎(限制踝关节内翻跖屈)在优势侧单腿落地动作中对膝关节生物力学特征的影响。方法在踝关节未贴扎和贴扎两个条件下,18位业余运动员执行优势侧单腿落地动作,使用Vicon三维运动捕捉系统、Kistler测力台和Noraxon表面肌电系统共同采集运动学、动力学、表面肌电数据,进行统计学分析。结果与未贴扎相比,贴扎后触地时刻的膝关节屈曲角度和接触地面过程中膝关节最大屈曲角度显著性增加,而膝关节最大外翻角度显著性减小。结论限制踝关节内翻跖屈贴扎可能会降低前交叉韧带损伤的风险。踝关节贴扎的干预方式能够改变在落地动作中膝关节生物力学指标。限制踝关节内翻跖屈贴扎可以作为预防大学生运动员前交叉韧带损伤的有效措施。

Objective To study the effect of ankle taping(restriction of ankle varus and plantar flexion)on biomechanical characteristics of the knee during drop landing on the dominant leg.Methods Eighteen amateur athletes performed the dominant-legged drop landing under two different ankle conditions(with or without taping).Vicon three-dimensional(3D)motion capture system,Kistler force plate and Noraxon surface electromyography(sEMG)system were used to collect kinetic,kinematic and sEMG data for statistical analysis.Results Compared with control group,ankle taping significantly increased flexion angle at initial contact and maximum flexion angle,while significantly decreased the maximum valgus angle.Conclusions The restriction of varus and plantar flexion might reduce the risk of anterior cruciate ligament(ACL)injury.The intervention with ankle taping could modify biomechanical parameters of the knee during drop landing.The ankle taping by restriction of ankle varus and plantar flexion may be an effective measure to prevent ACL injury for collegiate athletes.