股直肌肌内效贴扎对人体疲劳前后急停起跳动作生物力学特征的影响

发布时间：2018-02-24 13:09

本文关键词： 肌内效贴疲劳急停起跳下肢损伤运动表现　出处：《北京体育大学》2016年硕士论文　论文类型：学位论文

【摘要】：研究目的:通过对比肌内效贴扎组和安慰剂组以及对照组受试者在急性疲劳过程中完成急停起跳动作时下肢生物力学特征的异同,探究肌内效贴在实际运动中是否可以帮助肌肉抵抗疲劳对下肢造成的消极影响以及肌内效贴是否会提高人体的运动表现。研究方法:9名普通健康男性大学生,分别在股直肌肌内效贴扎、安慰剂贴扎和不进行贴扎三种状态下进行三次测试,每次测试在疲劳干预前、中、后分别进行急停起跳动作测试,用红外高速运动捕捉系统和三维测力台对受试者急停起跳动作的运动学和动力学数据进行同步采集,每两次测试时间间隔一周。研究结果:无论是否进行贴扎,疲劳后急停起跳着地时刻、首次水平向后地面反作用力峰值时刻和首次垂直地面反作用力峰值时刻的髋关节屈曲角(p=0.038,0.019,0.045)和膝关节屈曲角(p=0.017,0.013,0.024)显著减小,起跳阶段最大膝关节伸力矩(p=0.031)、最大踝关节跖屈力矩(p0.001)、垂直地面反作用力冲量(p=0.023)显著下降;肌内效贴扎与空白和安慰剂贴扎相比,急停起跳着地时刻膝关节屈曲角(p=0.032)显著增加,首次水平向后地面反作用力峰值时刻膝关节内收力矩(p=0.029)显著减小。研究结论:1.股直肌上进行肌内效贴扎可以增加急停起跳着地时膝关节屈曲角、减小着地初期膝内收力矩显著,因此可以降低前交叉韧带损伤的风险。2.对股直肌使用肌内效贴不能提高人体起跳阶段的运动表现,也没有增加蹬伸阶段髋、膝最大伸展力矩和踝最大跖屈力矩。3.对股直肌使用肌内效贴并不能改善疲劳对人体运动时下肢产生的消极影响。4.疲劳后急停起跳着地初期髋关节和膝关节屈曲角显著减小,因此可以增加前交叉韧带损伤的风险。5.疲劳后起跳阶段人体的运动表现显著下降,伸膝肌群和踝跖屈肌群向心收缩产生最大收缩力的能力显著下降。
[Abstract]:Objective: to compare the biomechanical characteristics of lower extremities in the subjects of the intramuscular patch group, the placebo group and the control group during acute fatigue. To find out whether intramuscular sticking can help muscles resist the negative effects of fatigue on lower extremities and whether it can improve the exercise performance of human body. Methods: 9 normal male college students. Three tests were conducted in three states, I. e., internal fixation of rectus femoris, placebo sticking and no sticking. Each test was performed before, during and after fatigue intervention. The kinematics and dynamics data of the subjects' sudden stop and takeoff were collected synchronously by using the infrared high-speed motion capture system and the three dimensional force-measuring platform, and the interval between the two tests was one week. The hip joint flexion angle of the first horizontal backward ground reaction peak moment and the first vertical ground reaction peak moment were decreased significantly after fatigue, and the knee joint flexion angle was 0.017 0. 013 ~ 0. 024), the hip joint flexion angle was 0. 038 ~ 0. 019 ~ 0. 045) and the knee joint flexion angle was 0. 017 ~ 0. 013 ~ 0. 024). The maximal knee joint extension torque in the take-off stage was 0.031, the maximal ankle metatarsal flexion moment was p0.001, and the impulse of the vertical ground reaction force was significantly decreased, and the intramuscular effect sticking was significantly higher than that of the blank and placebo patch, and the knee flexion angle p0.032) was significantly increased at the time of landing and landing. Conclusion: 1. The intramuscular effect attached to the rectus femoris muscle can increase the flexion angle of knee joint and decrease the initial knee adductive moment significantly at the initial stage of landing. Therefore, it can reduce the risk of anterior cruciate ligament injury. 2. The use of intramuscular patch to the rectus femoris does not improve the motor performance of the human body during the take-off period, nor does it increase the hip in the pedal and extensional stage. The maximal extension torque of knee and the maximal metatarsal flexion torque of ankle .3.The application of intramuscular patch to rectus femoris can not improve the negative effect of fatigue on the lower extremities of human body. 4. After fatigue, the flexion angle of hip joint and knee joint decreased significantly in the early stage of landing on the ground. Therefore, it can increase the risk of anterior cruciate ligament injury. 5. During the take-off after fatigue, the movement performance of the human body decreased significantly, and the ability of the extensor knee muscle group and the ankle flexor muscle group to produce the maximal contractile force was significantly decreased.
【学位授予单位】：北京体育大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：G804.6

【相似文献】