اثر تمرينات التسهيلات العصبية العضلية للمستقبلات الحسية و البالستية في توازن القوة واهم القابليات البيو حركية وانجاز فعالية دفع الثقل تحت 17 سنة

Trainings Impact of Proprioceptor Neuromuscular and Ballism Facilitation on Power Balance and most Important Bio Kinetic Capabilities and Carrying out Shot Put under 17

Abstract
One of the most important factor that contribute in development of track and field activities in the development occurring in the sport training sciences. Track and field sport is considered one of the widely spread sport all over the world that witnessed a noticeable development within the previous years due to the studies and specialized scientific researches which helped knowing the changes that affect the sport performance in order to study them.
Shot put is considered one of the track and field competitions that implied within throwing activities that characterized by anxiety, interest, and the hard competition among athletics. This sport highly exploits the athletics’ bio kinetic and bodily capabilities represented by high speed with the bio kinetic accuracy performance since the first moment of the performance up to its end. The level of performance relies in shot put basically on the level of the high speed that shot put thrower possesses and what muscular balance he has where he works to achieve best artistic performance.
The research aims were represented by proprioceptor neuromuscular and ballism facilitations (PNF) and knowing its impact on the research variables as well knowing its superiority.
Concerning the research hypotheses, there was a positive influence for these trainings and the superiority of the third group.
In the third chapter, the researcher adopted the experimental approach of the equal groups style. The researcher chose the sample by the whole restriction where they were randomly divided into three groups. Then, uniformity and equation were done between the two groups. The chapter is included the devices and instruments used, the questionnaire, the main experiment, the prepared course, the test used, the statistical devices, and the T statistical devices for the symmetric samples and analyzing the difference.
The fourth chapter was about the results analysis that the researcher concluded. The most important conclusion was the positive influence of the prepared trainings of the training program of the third experimental group ( PNF trainings and ballistic trainings) concerning the power balance.
There was a clear positive influence of the prepared trainings of the training program of the third experimental group ( PNF) proprioceptive neuromuscular facilitation trainings and ballistic trainings) in the bio kinetic capabilities ( the explosive power, flexibility, bio kinetic balance).