نسبة مساهمة الطاقة القلبية و بعض المتغيرات البايوكيميائية بتحمل الأداء المهاري بالملاكمة لدى الملاكمين الناشئين

Abstract EN

The boxing game is based on many variables, as the researcher deliberately sheds light on the study of endurance performance among junior boxers and the causes of differences in performance endurance percentages of junior boxers from a physiological standpoint related to cardiac energy and biochemical variables in order to identify their contribution to endurance performance in boxing.

The research included the problems that the researcher tries to answer them, namely: Is there a relationship between psychological energy and biochemical variables (LDH, catalase, lactic acid, cortisol) with the endurance of boxing performance among juniors? For the sake of a broad understanding of the impact of these variables on endurance performance in order to benefit from their impact.

The most important objectives of the research were to identify the relationship and contribution percentages between psychological energy and biochemical variables (LDH, catalase, lactic acid, cortisol) with endurance to boxing performance among juniors.

The most important hypothesis was there was a statistically significant relationship between psychological energy and biochemical variables (LDH, catalase, lactic acid, cortisol) with endurance to boxing performance among juniors.

The researcher chose the descriptive approach in the survey method and the correlation relations for its relevance to the nature of the research.

The research sample was represented by the research community itself, so the researcher took all members of the community in the research (the comprehensive enumeration method)