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Medicina dello Sport 2019 December;72(4):586-95

DOI: 10.23736/S0025-7826.19.03443-4

Copyright © 2019 EDIZIONI MINERVA MEDICA

language: English, Italian

Biomechanical analysis of sidestep cutting movement which causes anterior cruciate ligament injury during sports

Long LIU ✉

Physical Education College of Anyang Normal University, Anyang, Henan, China

BACKGROUND: The proportion of women with anterior cruciate ligament (ACL) injury caused by sidestep cutting is significantly larger than that of men.
METHODS: Taking 10 female basketball players and 10 male basketball players as examples, this study performed biomechanical analysis based on the kinematics and dynamics related data of the sidestep cutting movement.
RESULTS: It was found that the kinematics and dynamics data of female lower limbs were significantly different from that of male lower limbs; the internal and external rotation angles of female knee joints were larger than those of male knee joints (P<0.05). The knee joints of the females were abducted, and the females had larger knee flexion and extension angle, smaller tibial anteversion angle, closer pressure center to ankle joints and smaller knee extension moment compared to males (P<0.05). The comparison of surface electromyography signals suggested that the activation level of the rectus femoris muscle, vastus medialis muscle, vastus lateralis muscle, medial head of gastrocnemius muscle and lateral head of gastrocnemius muscle and ACL peak load of females were higher than that of men (P<0.05).
CONCLUSIONS: It indicates that those indicators are the possible factors causing the high incidence rate of ACL injury in women and need to be adjusted scientifically in actual training.

KEY WORDS: Athletic injuries; Anterior cruciate ligament injuries; Mechanical stress; Biomechanical phenomena; Electromyography