تأثير تدريبات السرعة الحرجة في تدريب وانجاز فعالية 400 م حرة

Abstract

The importance of research is to make the correct science foundations when choosing a successful training method and influential and appropriate through using the training with less spaces and highly intensity during determining the duration of critical speed in the development of speed endurance for runner of 400m distance. The purpose of the research is to prepare a method using maneuvers by less spaces and high-intensity to develop strength and speed endurance for runner of distance of 400m, the researcher used the experimental method and the community of the research sample was chosen intentionally for 400m event and they represent community of players Physical education College, we concluded that used maneuvers had a major impact in the development of the critical speed of the event of 400m.