Talaat Ellabany, S., Abdel-Hamid Attaallah, M. (2015). Kinematic Analysis of the Whole Body Center of Gravity Trajectory and Time Structure of the Tennis Serve Performance. Journal of Applied Sports Science, 5(4), 76-81. doi: 10.21608/jass.2015.84528
Sohair Talaat Ellabany; Mansour Abdel-Hamid Attaallah. "Kinematic Analysis of the Whole Body Center of Gravity Trajectory and Time Structure of the Tennis Serve Performance". Journal of Applied Sports Science, 5, 4, 2015, 76-81. doi: 10.21608/jass.2015.84528
Talaat Ellabany, S., Abdel-Hamid Attaallah, M. (2015). 'Kinematic Analysis of the Whole Body Center of Gravity Trajectory and Time Structure of the Tennis Serve Performance', Journal of Applied Sports Science, 5(4), pp. 76-81. doi: 10.21608/jass.2015.84528
Talaat Ellabany, S., Abdel-Hamid Attaallah, M. Kinematic Analysis of the Whole Body Center of Gravity Trajectory and Time Structure of the Tennis Serve Performance. Journal of Applied Sports Science, 2015; 5(4): 76-81. doi: 10.21608/jass.2015.84528
Kinematic Analysis of the Whole Body Center of Gravity Trajectory and Time Structure of the Tennis Serve Performance
1Faculty of Physical Education for Girls, Alexandria University, Alexandria, Egypt
2Faculty of Physical Education for Boys, Alexandria University, Alexandria, Egypt
Abstract
The purpose of this study was to examine the trajectory of the Center of gravity and hitting hand motion, how the momentum and force transfer from the whole body to the ball. High level player (age 32 y; height 181 cm; mass 75 kg) volunteered in this study. After the player warm up he had five trials before recording. Six trials were captured using two synchronize camera (Basler 100 Hz). The best successful three trials were selected for 3D motion analysis using (Winanalyze v2.0). The force curve for Center of gravity and hitting hand had a same path but there is a little difference in the momentum curve at the impact instant. This study suggests that combining of balance and coordination exercises may help to maintain the Center of gravity force trajectory in the same path with the hitting hand which gives an advantage for success serve. The takeoff within minimum time helps to increase the velocity of the Center of gravity and doesn't loss a generated force from the body to the hitting hand.
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