Squat and Countermovement Vertical Jump Dynamics Using Knee Dominant or Hip Dominant Strategies.
Squat and Countermovement Vertical Jump Dynamics Using Knee Dominant or Hip Dominant Strategies.
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DOI：
10.5114/jhk/159285
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发表时间：
2023-03
影响因子：
2.3
通讯作者：
Morioka Y
中科院分区：
文献类型：
--
作者：
Seki K;Nagano T;Aoyama K;Morioka Y
本研究旨在研究膝关节主导姿势和髋关节主导姿势下的深蹲跳和反向运动跳跃动力学。参与者包括 12 名运动科学系的男生。他们被要求进行蹲跳和反跳，并采用两种蹲姿：膝盖主导姿势和臀部主导姿势。分别使用运动捕捉系统和测力台记录跳跃运动和地面反作用力。 p 值为 0.05 被认为具有统计显着性。最大膝关节伸展扭矩存在显着的交互作用，膝关节反向运动跳跃比其他条件高出两倍以上，但与膝关节的机械功无关，膝关节姿势下的机械功明显大于髋关节姿势下的机械功。在髋关节的机械功和最大伸展扭矩方面没有发现显着的相互作用，这两者在髋姿势中均显着大于在膝姿势中，并且在反向运动跳中显着大于在深蹲跳中。这项研究表明，反向运动和姿势对关节的影响是不同的，这些影响在髋关节中是独立的，但在膝关节中相互作用。在膝关节中，姿势增加了反向运动对伸展扭矩的影响，但对机械功的影响很小。这表明膝盖姿势的反向运动对举重工作影响不大，但会给膝关节伸肌带来很大的负荷。
This study aimed to investigate squat jump and countermovement jump kinetics in the knee dominant and hip dominant postures. Participants included 12 male sports science students. They were instructed to perform a squat jump and a countermovement jump with two squat postures: knee- and hip-dominant postures. The jumping motion and ground reaction force were recorded using a motion capture system and a force plate, respectively. A p-value of 0.05 was considered statistically significant. There was a significant interaction for the maximal knee joint extension torque, with the knee-countermovement jump being more than twice higher than that of other conditions, but not for mechanical work of the knee joint, which was significantly greater in the knee posture than in the hip posture. No significant interactions were found in mechanical work and maximal extension torque of the hip joint, both of which were significantly greater in the hip posture than in the knee posture, and in the countermovement jump than in the squat jump. This study showed that the effects of countermovement and posture were different for joints and that these effects were independent in the hip joint, but interacted in the knee joint. In the knee joint, the posture increased the effect of countermovement on extension torque, but the effect on mechanical work was small. This suggests that countermovement in the knee posture has little effect on the lifting work, but results in a great load on the knee extensors.
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DOI：
10.1519/jsc.0b013e3181f6399a
发表时间：
2010-12-01
影响因子：
3.2
作者：
McBride, Jeffrey M.;Skinner, Jared W.;Kirby, Tyler J.
通讯作者：
Kirby, Tyler J.
影响因子：
4.1
作者：
Lahti, Johan;Hegyi, Andras;Ahtiainen, Juha P.
通讯作者：
Ahtiainen, Juha P.
DOI：
10.1111/j.1748-1716.1981.tb06716.x
发表时间：
1981-01-01
期刊：
ACTA PHYSIOLOGICA SCANDINAVICA
影响因子：
--
作者：
BOSCO, C;KOMI, PV;ITO, A
通讯作者：
ITO, A
影响因子：
2.4
作者：
Bezodis, Neil E.;Salo, Aki I. T.;Trewartha, Grant
通讯作者：
Trewartha, Grant
DOI：
10.1097/00005768-200106000-00019
发表时间：
2001-06-01
期刊：
MEDICINE AND SCIENCE IN SPORTS AND EXERCISE
影响因子：
--
作者：
Escamilla, RF;Fleisig, GS;Andrews, JR
通讯作者：
Andrews, JR