AU - سفيح، أسعد علي AB - Take for granted in the process of sports training organization that aims to reach the individual to achieve the best achievements in the field of specialization within the limits permitted by his physical, psychological and social development. The progress in the achievement levels of the sporting events in general and tennis in particular caused by the adaptation of high body systems through the use of different methods for the training of muscle strength because it is one of factors, key performance for most games and sporting events, where requires training in all sports activities, but they vary in amounts and details of different of sporting activity to another and may have a precedence in a particular activity without the other, because the task force is such that the body cannot perform movements without its presence in the muscles. The main research problem in the presence of obvious weakness in the performance of a blow straight transmission which requires finding appropriate ways to achieve success can only be achieved by using variables to adjust the performance of such a strike properly. The research aims to Knowledge of the impact of the proposed approach in the development of transmission path according to some biomechanical variables. (Published abstract) http://search.shamaa.org/abstract_en.gif OP - ص ص. 1-35 T1 - أهم المتغيرات الميكانيكية كمؤشر لتطوير ضربة الإرسال المستقيم بالتنس الأرضي [مقال] UL - https://www.iasj.net/iasj/article/60208 النص الكامل (PDF) 1 http://search.shamaa.org/fulltext.gif