“EFFECT OF PHYSICAL EFFORT ON RATE OF CARDIAC CONTRACTION TIME, BLOOD FLOW IN CORONARY ARTERY, AND MYOCARDIAL OXYGEN CONSUMPTION AMONG YOUTH SOCCER PLAYERS”, PJSSPE, vol. 1, no. 6, pp. 22–26, Jun. 2024, Accessed: Nov. 19, 2024. [Online]. Available: https://proximusjournal.com/index.php/PJSSPE/article/view/85