Biomechanical Analysis on the Stop-jump Action of Patients with Knee Joint Injury
2018
Long Liu
Stop-jump requires many efforts at knee joint. This study aims at analyzing the biomechanical characteristics of stop-jump action of patients with knee joint injury through testing the biomechanical indicators when the subjects doing stop-jump action. Sixty students were selected from Zhengzhou Professional Technical Institute of Electronic and Information, Henan, China and divided into a control group, a unilateral injury group and a bilateral injury group according to the screening results of knee joint injury. The physical quantities such as duration of rising to the air, the rotation angle, flexion and extension angle and adduction and abduction angle of the hip joint and the inclination angle of the pelvis in the experiment of stop-jump action were calculated through motion experiment, imaging analysis method and Ariel Performance Analysis System (APAS). It was concluded from the experiment that the pelvis, hip joints and ankle joints suggested compensatory phenomenon and bore more moment produced during motion of human body instead of the injured knee joints. The compensation can offer a great opportunity for the prevention of knee joint injury and damage management.
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