不同方向单腿跳跃落地及运动疲劳对非接触性前交叉韧带损伤风险的影响

发布时间：2018-02-10 01:22

本文关键词： 疲劳单腿落地不同方向前交叉韧带损伤生物力学　出处：《中国体育科技》2017年01期 　论文类型：期刊论文

【摘要】：目的:探讨3种不同方向(前跳、斜跳与侧跳)单腿跳跃落地动作对造成非接触性ACL损伤风险的差异,同时考察神经肌肉疲劳对动作可能造成的影响。方法:采用红外光点运动捕捉系统与三维测力台,同步采集12名健康男性受试者在疲劳前、后完成的三种不同方向单腿跳跃落地动作,并对下肢的运动学和动力学参数进行统计分析。结果:与ACL损伤相关的部分下肢生物力学指标在不同动作及疲劳前、后存在一定的差异,触地时刻支撑腿髋关节屈角前跳斜跳侧跳;地面反作用力首次峰值时刻膝伸展力矩侧跳大于前跳,且疲劳后3种方向均有所增大;膝外展力矩侧跳与斜跳大于前跳;疲劳后地面反作用力首次峰值均有所增大。结论:侧跳与斜跳较前跳可能有更大的ACL损伤风险,尤其是侧跳落地动作的损伤风险相对较大;神经肌肉疲劳可增大单腿跳跃落地时的ACL损伤风险。
[Abstract]:Objective: to explore the difference of the risk of non-contact ACL damage caused by one-leg jumping landing in three different directions (forward jump, oblique jump and side jump). At the same time, the possible effects of neuromuscular fatigue on action were investigated. Methods: 12 healthy male subjects were simultaneously collected before fatigue by using infrared light point motion capture system and three dimensional force measuring table. The results showed that some lower limb biomechanical indexes related to ACL injury were before different movements and fatigue, and the kinematics and dynamics parameters of lower limbs were statistically analyzed. There is a certain difference after the ground contact, the forward jump of the hip joint flexion angle of the supporting leg is inclined to the side jump at the ground contact moment, the knee extension moment side jump at the first peak moment of the ground reaction force is larger than the forward jump, and all of the three directions increase after fatigue. The first peak value of ground reaction force increased after fatigue. Conclusion: the side jump and oblique jump may have greater risk of ACL damage than forward jump, especially the damage risk of landing action of side jump is higher than that of forward jump. Neuromuscular fatigue can increase the risk of ACL damage when one leg jumps to the ground.
【作者单位】：北京体育大学运动人体科学学院;山东体育学院运动与健康学院;
【基金】：山东体育学院重点课题(131102)
【分类号】：G804.6

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