القوة الانفجارية للذراعين و علاقتها ببعض المتغيرات الميكانيكية لمهارة الضرب الساحق المواجه لدى لاعبي الكرة الطائرة

الملخص EN

The importance of the research lies in identifying the muscle power of arms muscles among the offensive players, who had to have a good high jump to hit a ball and this could be done through measurement testing of the stability of this feature in order to be similar to the playing conditions; lies in identifying many of the mechanic values for the stages of spiking movement, and then identifying the values which would make a relationship with the feature of the explosive power of arms muscles among the volleyball players in order to get desired results that contribute in the development of the game.

The research aimed to identify the values of the explosive power of the arms muscles to the front of stability among the volleyball players of Erbil’s players with some bio-mechanic variables for spiking among the volleyball players.

The research population consisted on the players of Erbil volleyball club for men, who were 12 players.

The research sample consisted on 6 players, after excluding the servers and libero as the sample represented 50% of the research population.

The main research experiment was conducted in the same day of conducting the exploratory experiment on 7/11/2014.

The physical tests and the skill tests for the sample were carried out in the arena of Erbil club.

The tests were filmed from the left side of the performance, and vertically on the performance as the height of the camera lens was 120 cm, and the camera was 3m away.

The researcher used computer for the purpose of data processing statistically and physically by using the software Microsoft Office Excel 2010, SPSS.

The results and the conclusions of the research were: there was a significant relationship between the explosive power of arms with some importantbio-mechanic variables in spiking, which were the distance after getting up and landing, the potential power in the stage of getting up (the last time of touching the ground), the potential power in the stage of utmost curving, pushing between the two stages of getting up to the utmost curving, pushing between the stage of getting up (the last time of touch the ground) to the stage of landing, and the angle speed of legs when hitting.

It was also concluded that the explosive power of arms is an essential and important factor for the volleyball player at spiking.