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A1 غيدان، فؤاد عبد اللطيف A2 مهدي، محمد رافد AB The aim of the research was to identify the effect of the exercises on resistors and aids in developing the skills of the wall of the wall and the accuracy of the crushing beating of the players of the University of Diyala volleyball team. The researchers used the experimental approach to the problem of research, and the research community was chosen by the deliberate way they are players of the University of Diyala volleyball team (12) player divided into two equal experimental and control. After the main experiment and tests were completed, the (SPSS) program was used for statistical data processors to reach the results, after which the results were presented and discussed. The researchers found the most important conclusion is a positive development in the experimental group in the post-test of the skill of the wall of the shock and the skill of the accuracy of beating overwhelming. The researchers recommended that the use of special exercises and implemented with different resistances and aids with all clubs during the training modules and by all trainers because of their great role and rapid development of skills. In addition to the experience of the exercises mentioned in the research with other skills may help in the development and raise the achievement of the players. He also recommended the need to use the training tools and modern equipment and the corresponding development to upgrade the training process to reach the level of achievement. (Published abstract) http://search.shamaa.org/abstract_en.gif OP ص ص. 126-137 T1 تأثير تمرينات خاصة بمقاومات ووسائل مساعدة في تطوير مهارتي حائط الصد ودقة الضرب الساحق المستقيم للاعبي منتخب جامعة ديالى بالكرة الطائرة [مقال] UL http://search.shamaa.org/PDF/Articles/IQJssd/JssdVol11No37Y2019/jssd_2019-v11-n37_126-137.pdf النص الكامل (PDF) 1 http://search.shamaa.org/fulltext.gif