تأثير استخدام التدريب المتزامن على تطوير القوة العضلية و مســتوى الأداء المهارى لحركات السقوط على الرجل لناشئى المصارعة الحرة.

       The research aimed to develop a training program using synchronous training (weight training + endurance) and to find out its impact on muscle strength (maximum strength - muscular ability - strength endurance) and the level of skill performance of falling movements on the man for junior freestyle wrestling, and the researcher used the experimental approach on a sample of (10) junior freestyle wrestling under (17) years, and research tools: Muscle strength tests - measuring the effectiveness of the level of skill performance of falling movements on the man for junior freestyle wrestling - simultaneous training program, and statistical treatments:  Arithmetic mean, standard deviation, median, torsion coefficient, test "T", simple correlation coefficient, improvement ratios%.                                                          
Among the most important results:
  1- The use of simultaneous training (weight training + endurance training)   positively affects the level of (0.05) on the muscular strength (maximum - ability - strength endurance) for junior freestyle wrestling under (17) years.                                                                                                      

The use of simultaneous training (weight training + endurance training) has a positive impact at the level of (0.05) to improve the level of skill performance of falling movements on men for junior freestyle wrestling under (17) years.