The Effect of P.N.F Exercises in Repeated Contraction in Improving Muscle Balance and Speed of Neural Signaling for Persons with Special Needs (C.P37) and Completion of (400 m)

The paralysis of the brain is one of the categories suffering from paralysis of the upper and lower extremities. This paralysis makes the body unbalanced in terms of the range of motor and the amounts of muscle strength either between the extremities of the body and the injured or the right side of the muscles between the material and the second side of the affected party and this affects significantly In many of the amounts of strength and flexibility that have a large role in the kinetic variables during the 400 m race and the exercises of sensory sensory muscle (pnf) of the exercises that help to regulate and reduce the threshold of the difference of muscle contraction,which contributes to reducing muscle tension in the limbs Helps to improve the motor range and muscular strength of the athlete as well as the transmission of nerve signals correctly and smooth in the affected limbs (paralyzed)The aim of the research was to identify some of the elasticity,muscle strength,and speed of the nerve signal for the healthy and injured limbs of the CP100 antagonists in the CP37 category,using the EMG device,and special exercises using PNF and repeated contraction (RC) Improve the muscle balance,speed and nerve signal and the achievement of 400 m enemy. The most important variables studied are the amounts of muscle strength,flexibility and speed of the nerve signal of the parties healthy and injured and the development of exercises to improve them The researchers have learned to exercise sensory receptors muscular muscle a significant role in improving the balance of strength and flexibility and regulatory (C.P37) as well as improvement of some kinetic parameters (step length and frequency) of the injured part and completion of 400 m running