CAJ | 학술논문

为测试超等长阻力训练前后原地垂直纵跳动作下肢各关节角速度及角加速度，计算下肢各关节角刚度，观察超等长阻力训练对下肢各关节角动力学的影响。将16名青年男子篮球运动员随机分成超等长阻力训练组和常规训练对照组。采用VICON和三维测力台采集每个动作的运动学和动力学数据，计算下肢各关节角速度及角加速度，并经逆动力学方法计算下肢净关节力矩。结果可见，超等长阻力训练组髋、踝关节角速度和角刚度明显高于对照组，膝关节角速度及角刚度两组没有明显差异；超等长阻力训练组髋、膝、踝关节角加速度均显著高于对照组。结果说明超等长阻力训练可降低拉长．缩短周期支撑时间、缩短摊还期、增强肌肉．肌腱复合体能量转换能力、提高下肢肌肉爆发力。适于需要关节角速度、角加速度及爆发力的项目。
위측시초등장조력훈련전후원지수직종도동작하지각관절각속도급각가속도，계산하지각관절각강도，관찰초등장조력훈련대하지각관절각동역학적영향。장16명청년남자람구운동원수궤분성초등장조력훈련조화상규훈련대조조。채용VICON화삼유측력태채집매개동작적운동학화동역학수거，계산하지각관절각속도급각가속도，병경역동역학방법계산하지정관절력구。결과가견，초등장조력훈련조관、과관절각속도화각강도명현고우대조조，슬관절각속도급각강도량조몰유명현차이；초등장조력훈련조관、슬、과관절각가속도균현저고우대조조。결과설명초등장조력훈련가강저랍장．축단주기지탱시간、축단탄환기、증강기육．기건복합체능량전환능력、제고하지기육폭발력。괄우수요관절각속도、각가속도급폭발력적항목。
In order to measure the angular velocities and angular accelerations of the joints of lower limbs making a vertical jumping move before and after super-isometric resistance training, to calculate the rigidities of the joints of lower limbs, and to observe the dynamic effects of super-isometric resistance training on the joints of lower limbs, the authors randomly divided 16 young male basketball players into a super-isometric resistance training group and a conventional training control group, collected kinetic and dynamic data of each move by using VICON and a 3D force measuring station, calculated the angular velocities and angular accelerations of the joints of lower limbs, and the net joint moment of lower limbs by means of inverse dynamics, and revealed the following findings： the angular velocities and angular rigidities of hip and ankle joints of players in the super-isometric resistance training group were significantly higher than those of players in the control group, while there was no significant difference in the angular velocities and angular rigidities of knee joints between players in the two groups; the angular velocities of hip, knee and ankle joints of players in the super-isometric resistance training group were significantly higher than those of players in the control group. The said findings indicated that super-isometric resistance training can reduce elongation, shorten cycle supporting time, shorten amortization period, enhance the energy conversion capacity of the muscle-tendon complex, and boost the explosive power of lower limb muscles, is suitable for events which re- quire the angular velocity, angular acceleration and explosive power of joints.