Author(s): Sreeja U Bhasi and Dr. Sadanandan CS

Abstract:
Serve is one of the most important skills a player needs to have when they step onto the volleyball court. A serve starts every play in volleyball, which is why it is important to know how to do it if you want to play volleyball. In volleyball the players uses different types of serves. The jump serve is highly effective, whenever the player puts power into the serve and attacks opponent. In jump serve, the higher the point of impact, the sharper the downward angle of the serve, and the more margin for error there is for the server to utilize a higher ball velocity. The more extended the body at take-off, the higher the server will jump, as the height of the CG at take-off contributes to maximum jump height. Take off velocity will be the most important contributing factor along with the combination of other kinematic variables that can result in attaining maximum reach height during jump serve. Considering the importance of take off velocity in the execution of jump serve the researchers made an attempt to find out the relationship between the selected kinematic variables and the take-off velocity of jump serve among national level male volleyball players. The present research was intended to find out the relationship between the selected kinematic variables and the take off velocity of jump serve among national level male volleyball players. The purpose of the study was achieved with participation of 10 national level male volleyball players from Kerala and the assessment done on the selected kinematic variables of jump serve which can describe the characteristics of take off velocity. The objectives of the study – to find out how the take-off velocity of jump serve related with the selected independent variables jump serve approach phase – was accomplished through a scientifically planned and executed two dimensional video analysis using the captured serve trials (N= 20 trials) of selected participants. The Kinovea motion analysis software was used as the tool for the same. The data collected through the video analysis method was statistically assessed using Pearson’s Product Moment Correlation Coefficient and found that Takeoff velocity in jump serve had a significant positive relationship with the angle of hip and the angle at shoulder at cross step and significant negative relationship with the angle of hip at penultimate step among national level male volleyball players.

Pages: 149-151  |  819 Views  264 Downloads