KINETIC AND KINEMATIC DIFFERENCES OF TWO VOLLEYBALL-SPIKING JUMPS
Kuo Chuan Huang1, Lin Huan Hu1, Chenfu Huang1, Tai Yen Sheu1 and Chia Meng Tsue2.
1National Taiwan Normal University. 2 National Taiwan College of Physical Education. Taipei, Taiwan.
The purpose of this study was to investigate the net muscle moments and work on the lower limbs in two different volleyball-spiking jumps by inverse dynamics. A Kistler force platform (600 Hz) was synchronized with a Peak high speed camera (120Hz) to collect the volleyball jumping action. Sixteen volleyball players (8 males and 8 females) were served as subjects for the study. The results revealed that the work done in knee joint during eccentric contraction were greater than ankle and hip joints in both two volleyball jumps. In addition, the hip has a greater work contribution on both hop and step-close jump.