ARTICLE –
abstractBiomechanical
differences between jump topspin serve and jump float serve of elite
Greek female volleyball players Iconomou Charalabos1,
Lazaridis Savvas2, Papadopoulou Sophia2,
Ioannidis Theodoros2 1Technological Educational Institution of Serres, Department of Physical Activity, 2Laboratory
of Coaching and Sport Performance, Department of Physical Education and
Sports Sciences, Aristotle University of Thessaloniki, Greece
Abstract
Aim and
scope. The purpose of this study was to describe the biomechanical
differences between jump topspin serve and jump float serve of elite
young female Greek volleyball athletes. Material and methods. 12
international players volunteered and performed randomly three jump
topspin and three jump float serves. MNTCS video cameras filming at
100Hz recorded the players during the serves. Results. Jump topspin
serve presented higher values compared to jump float serve on ball
velocity, horizontal COM displacement, jump height, spike height and
COM velocities during take-off phase. As well as that, players during
jump topspin serve revealed higher values in all examined linear joint
velocities of upper limbs. Finally, a proximal to distal pattern was
observed in both serves regarding velocity of upper body joints.
Conclusions. Jumping topspin serve, though risky, can generate a more
difficult scenario for defense. Results from this study could be used
by professional coaches or by athletes themselves to better train these
two types of serves.
Key
words:biomechanics, volleyball jump serve, topspin serve
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