Motion features of legs in volleyball block jump based on biomechanical analysis

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Abstract

Blocking technology is one of the most important means to obtain score in volleyball, which has a great influence on the victory of the game. In this study, the vertical jump was analyzed to understand the movement characteristics of legs during training time. The kinematics and dynamics data of the legs of 10 volleyball players after training for 0 h, 0.5 h, 1 h and 2 h were studied by using an infrared light point motion capture system and force measuring platform. The results showed that the joint angles of the players who had 1 h and 2 h of training in the buffering and pedaling and stretching stages decreased markedly compared with those who had 0 h of training. The peak angular velocity and impulse of hip and knee joints after 1 h and 2 h of training decreased in the pedaling and stretching stage. In the flight stage, the time of flight and the height of center of gravity showed a downward trend, while the time of landing and the angle of the knee joint decreased. After 1 h and 2 h of training, at the moment of double-foot landing, the flexion and extension angle of the knee joint increased, and the angular velocity of the knee joint and ankle joint decreased markedly. The length of training time has a great impact on the joints of legs, including increasing joint pressure and the risk of injuries.

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CITATION STYLE

APA

Li, Z., Wang, J., & Yang, Y. (2021). Motion features of legs in volleyball block jump based on biomechanical analysis. MCB Molecular and Cellular Biomechanics, 18(2), 87–97. https://doi.org/10.32604/MCB.2021.014731

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