Factors Determining the Ability of Jump Volleyball Providing

 Purpose: This study aims to: 1) Determine the anthropometric factors (height, arm length, foot length) that most determine the ability of men's volleyball jump service. 2) Knowing the biomotor factors (leg muscle power, abdominal muscle strength, arm and shoulder muscle power, eye-hand coordination, togok flexibility and kinesthetic perception) that most determine the ability of men's volleyball jump service. Material and methods. The population of this study were all male athletes of the Volleyball Student Activity with a total of 36 people. The approach taken in this study is a quantitative approach, using a confirmatory factor analysis design. Data were processed and analyzed using the Computerized Statistical Program with the SPSS (Statistical Product and Service Solutions) Version 22 system and using the Kaiser-Meyer-Olkin and Bartlett's Test. Results. Based on the results of the research and the results of the data analysis that has been carried out, the following conclusions are obtained: First, the anthropometric factor that is the most dominant in determining the ability of volleyball jump service for male athletes in the UNS student activity unit is the length of the feet with a value of 0.879. Second, the biomotor factor that most dominantly determines the ability of volleyball jump service for male athletes in the UNS student activity unit is leg muscle power with a value of 0.864. Conclusions. Anthropometric factors and biomotor factors that determine the ability of volleyball jump service to male athletes in the UNS student activity unit consist of seven factors, namely height, arm length, leg length, leg muscle power, abdominal muscle strength, arm muscle power and flexibility, togok.