Jump Serve on Volleyball Survey

Rifki, Muhamad Sazeli and Syafrizar, Syafrizar (2017) Jump Serve on Volleyball Survey. In: Proceedings of the 2nd International Conference on Sports Science, Health and Physical Education (ICSSHPE), 18-19 Oktober 2017, Bandung.

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Abstract

The jump serve skill is still one of the problems faced by west sumatera volleyball athletes. This is seen I the results of the pre PON game in 2015 in sumatera where 35% of athletes did jump serve and the level of failure in getting point was still 50%. There are several factors that ellegedly affects the skill of jump serve; elasticity, explosive power of arm muscle and self-confidence. The purpose of this research is to find out: causal relationship between endogenous variable, that is jump serve skill (Y), intervening variable that is self confidence (X3). And two exogenous variables, namely the elasticity (X1) and arm muscle explosive power (X2). The Method applied was survey method This research was analyzed by path analysis technigue (Path Analysis) The population was all volleyball athletes of west sumatera. Data on elasticity were collected using a bridge-up test, arm muscle explosive power was taken with overhead test of medicine ball throw,self confidence data were taken with questionnaire and jump serve skill was taken with precision test, speed and quality of jump serve (judge) technique. The results of this study conclude tht: (1) Elasticity directly affects skill serve (py1 = 0,315); (2) The arm muscle explosive power directly affects the skill of jump serve(py2 = 0,534); (3) Self confidence directly affects skill serve (py3 = 0,310); (4) The elasticity directly affects the arm muscle explosive power (Px21 = 0,288); (5) Elasticity directly affects self confidence (P31 = 0.264); (6) The arm muscle explosive power directly affects the self confidence. (P32 = 0.271). As an effort to improve the skill of jump serve, it is necessary to consider the dominant factor (the path coefficient is greater).

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