The development taking place in various sports in performance, which was and still takes a large part by focusing on the specialized level of the players, whether in training or competition in all sports, including handball. In the competition (the match) by measuring the hormone beta-endorphin as well as. To identify the changes that occur in some biochemical variables as a result of the high effort in the competition (the match) by measuring lactic acid and the hormone aldosterone). The researcher used the descriptive method, the pre and post test of one group Due to the nature of the research, the research community was represented by Al-Shorta Sports players and Al-Jaish club players in handball, as they numbered (24) players from the t

Hypoxic training, which in turn is one of the methods adopted in sports training methods, especially in activities that depend on the aerobic system in its performance, which includes training with a lack of oxygen by reducing its molecular pressure, since this method targets functional organs and works temporary responses during training and permanent responses After training as an adaptation to these devices as a result of training in this way, the study aimed to identify the effect of hypoxic exercises using the training mask and the extent of the change in some biochemical indicators, in addition to that to identify the effect of these exercises on the indicator of energy expenditure and )VMA) and the achievement of the effectiveness of

تركزت نفاط البحث وأهدافه في اعداد برنامج تدريبي باسلوب التدريب المتقطع المتناوب الذي هو مزيج مابين السرعة والقوة وتاثيره في مستوى تركيز الكيتونات و الحامض الرايبوزي (206) لدى لاعبي كرة السلة.مجتمع البحث تم اختيارهم من لاعبي النخبة (الدوري الممتاز) بكرة السلة للموسم( 2023_2022) من لاعبي الدفاع الجوي للمتقدمين  والبالغ عددهم (16 لاعبا)، استخدم الباحث الاسلوب التجريبي بتصميم المجموعتين (الضابطة والتجريبية)، فترة ا

The study aimed to : - To determine whether there are significant differences between Fartlek training and the increase in the molecular biology (VEGF - basal fibroblast growth factor) for arena and field players in an (800m) youth event. - Determine whether there are statistically significant differences between Fartlek training and the increase in molecular biology and some physical variables for the players (800m) in the arena and field for youth. - Determine whether the Fartlek training method is the most appropriate to achieve statistically significant differences in the research variables for the players (800m) in the arena and field for youth. The researchers used the experimental method for its suitability and the nature of the rese