Author(s): Dr. D Abraham Samson and Dr. K Balamurugan

Abstract:
The purpose of the study is to find out the investigation of the changes on explosive power of volleyball players due to core with speed training and plyometric with speed training. To achieve the purpose of the study, thirty six (n=36) college volleyball players were selected as subject from K.G.S. Arts College, Srivaikundam, Nazareth Margoschis College at Pillaiyanmanai, Nazareth and Aditanar College of Arts and Science, Virapandianpatnam, Tiruchendur. The selected subjects had participated in Manonmaniam Sundaranar University intercollegiate tournaments by representing their respective colleges. The age of the subjects ranged from 18 to 24 years. In which, thirty-six were assigned into three groups of twelve subjects each (n=12). Group, I underwent Core with Speed Training (CSTG), group II underwent Plyometric with Speed Training (PSTG) and group III acted as control. According to matched group design the K.G.S. Arts College, Srivaikundam volleyball players underwent Core with Speed Training; Nazareth Margoschis College at Pillaiyanmanai, Nazareth volleyball players underwent Plyometric with Speed Training and Aditanar College of Arts and Science, Virapandianpatnam, Tiruchendur, volleyball players acted as control in their respective campus for 12 weeks of 60-morning sessions. Prior to and after the exercises period the subjects were tested for, explosive power. Explosive power measured by sargent jump. The statistical tool were used for the present study is ANACOVA. The result of the study was a significant increase on explosive power after twelve weeks of core with speed training and plyometric with speed training. However the increase was favour of experimental group. There was a significant difference was occurred between experimental and control groups after twelve weeks of core with speed training and plyometric with speed training.

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