The Effect of Sand and Solid Training Surface on Selected Physical and Technical Variables for Volleyball Players in West Bank-Palestin ( Comparative Study)

The purpose of this study is to compare the effect training has on sand and Solid surfaces, on Selected Physical and Technical Variables , for volleyball players in the West Bank. And the study show: training on two different surfaces(solid and sand ).Sample athletes were chosen from 18 volleyball players representing Sinjel and Aseera Al-Qibliyyeh sports clubs that were identified as top teams in Palestine. Players were assigned to two groups of nine players each, equal in height, weight, age and sports experience. For the sake of the study, the players were also equal in physical and Technical Variables. Both groups were observed through the same training program for three weekly sessions for the duration of eight weeks. The SPSS program was used for obtaining results and testing hypotheses. The T-Test, percentages, Pearson Correlation, mean and standard deviation were all used in the study. Results indicated that significant statistical differences were found pre and post testing in physical and Technical Variables in both groups. Results also showed significant statistical differences post testing in some physical changes such as (The ability of the muscular leg , Endurance , Agility). Other physical changes such as (accurate spiking from cenrer4 to center 1 and 5 and repetitive blocking) were found in favor of the sand group. On the other hand, results showed no differences in post testing between the two groups in some changes such as (Speed and accurate bigger pass on the wall).According of this study, researcher recommend the necessity of using sand floor for training because of its positive effects on the physical and skill aspects of the volleyball players. Researcher