فاعلية التدريب المتباين على بعض المتغيرات البيوكيميائية و البدنية الخاصة و المستوى الرقمي للاعبي المسافات المتوسطة

الملخص EN

The aim of the research is to develop a training program using differential training (weights + endurance) and to know its effect on some biochemical, physical and digital variables for middle-distance runners (800, 1500) meters / running The researcher used the experimental method on one sample of (12) players from Kafr El-Sheikh Sports Club Among the research tools: biochemical measurements-physical measurements-measuring the digital level of middle distance runners (800, 1500) meters / running The following statistical methods were used : arithmetic mean-standard deviation-flatness-median-skew coefficient-"t" test-simple correlation coefficient-percentage improvement.

Among the most important results are the following : The proposed training program using contrast training positively affects some biochemical variables (beta-endorphin-lactic acid-dehydrogenase) for middle-distance runners (800, 1500) meters/run The proposed training program using differentiated training has a positive effect on some special physical variables (respiratory periodic endurance, general muscular endurance, leg muscle strength, back muscle strength, transitional speed, speed endurance, and leg muscle endurance) for middle distance runners (800, 1500) meter / run The proposed training program using differentiated training has a positive impact on the digital level of middle-distance runners (800 / 1500) meters Among the most important recommendations are the following It is necessary to pay attention to the use of differentiated training to improve the indicators of muscle fatigue (biochemical variables) because of its effectiveness in delaying the onset of fatigue and improving the digital level of middle-distance runners (800 / 1500) running meters.

The necessity of paying attention to the use of differentiated training to develop the special physical abilities of middle-distance runners (800 / 1500) running because of its effectiveness in improving the digital level of this race The importance of having follow-up records for each contestant to be recorded (special physical abilities - biochemical variables - digital levels) Conducting the auction of scientific studies that deal with the impact of different training in other forms of training in the various field and track competitions