부산대학교 도서관

Introduction: The purpose of this study was to investigate the differences in lower extremity kinematics and dynamics between college soccer and basketball players during a side-step cutting. Methods: Twenty Division I female college players (basketball, n=10; soccer, n=10) participated in this study. A Vicon ten-camera system and a Kistler force plate were used to collect the 45-degree side-step cutting tasks. Vicon Nexus 1.81 and Visual3D V5 software were used to process and calculate kinematic and dynamic data. An independent sample t-test was used to compare group differences (α=.05). Results: The results indicated soccer players had greater ankle plantar flexion and hip abduction angle when the foot made initial contact with the force plate. During the supporting phase, soccer players had greater peak ankle valgus, knee flexion and internal rotation angle, greater peak ankle external rotation and hip adductor moment; whereas, basketball players had greater peak braking ground reaction force and the first peak of vertical ground reaction force, but had smaller peak propulsive ground reaction force. Conclusion: It was concluded that, female soccer athletes are used to make sudden stops with the forefoot initial-contact with the ground during side-step cutting. Such a movement would generate higher ground reaction force; as a result, the knee flexion angle needs to be increased for impact absorption, moreover, ankle valgus and knee internal rotation angle would be greater. Therefore, this study suggests that female soccer athletes increase ankle neuromuscular training programs; as to the female basketball athletes who had smaller knee flexion angle during side-step cutting, we recommend increasing knee flexion angle to prevent non-contact ACL injury and enhancing knee neuromuscular training programs.