Effect of foot strike patterns and cutting angles on knee kinematics and kinetics during side-cutting maneuvers

Acta of Bioengineering and Biomechanics

article

W.Zhou¹  Y.Qi³  M.Liu⁴  C.Hsiao²  L.Wang² 

[1] Key Laboratory of Exercise and Health Sciences ,(Shanghai University of Sport), Ministry of Education;School of Exercise and Health, Shanghai University of Sport;Nanxiang Community Health Service Center, Tongji University School of Medicine;Rehabilitation Center, Taihe Hospital, Hubei University Of Medicine

关键词: Cutting movement;    rearfoot strike pattern;    forefoot strike pattern;    anteriorcruciate ligament;   

DOI  :  10.37190/ABB-02192-2023-02

学科分类：生物科学（综合）

来源: Politechnika Wroclawska

【 摘 要 】

Purpose: Cutting maneuvers are important actions in multidirectional sports butassociated with noncontact anterior cruciate ligament (ACL) injuries. This studyaimed to investigate the effect of different foot strike patterns and cutting angles onknee kinematics and kinetics. Methods: Twenty healthy male team sports athletesperformed cuts with maximum speed at three angles (45°, 90°, and 135°) withdifferent foot strike patterns (rearfoot strike [RFS] and forefoot strike [FFS]). Athree-dimensional motion capture system combined with a force plate was used tocollect makers trajectory and ground reaction force (GRF). Vertical GRF, and kneejoint angles and moments were compared among these cutting tasks. Results:Regardless of foot strike patterns, increased knee flexion angle, knee valgus moment,and knee internal rotation moment were observed during cutting to sharper angles (p< 0.001). At 90° and 135°, the FFS condition remained in a varus position and showedlower knee flexion moment than the RFS condition (p ≤ 0.004). However, nosignificant differences in knee kinematic and kinetic variables were found betweenfoot strike patterns during cutting to 45°. Conclusions: These findings suggest thatsharper cutting angles potentially increase the risk of ACL injury. Compared with theRFS pattern, the FFS pattern induces a slight knee varus angle and a lower kneeflexion moment at sharper angles, which might further reduce the load placed on theknee.

【 授权许可】

Unknown