Contribution Percentage of cardiac energy and some biochemical variables for enduring the skillful performance of boxing among junior boxers

نسبة مساهمة الطاقة القلبية وبعض المتغيرات البايوكيميائية بتحمل الاداء المهاري بالملاكمة لدى الملاكمين الناشئين

Abstract

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)