Warning: file_get_contents(https://ojs.journalbusiness.my/ojs.php): failed to open stream: HTTP request failed! HTTP/1.1 404 Not Found in /var/www/ojs.unud.ac.id_backup/lib/pkp/includes/functions.inc.php on line 4 Dharmasanti, O. 2021 May 28. EFFECT OF HIGH INTENSITY INTERVAL TRAINING ON THE CARDIOVASCULAR SYSTEM AND CARDIAC ANTI-AGING. Sport and Fitness Journal. [Online] 9:2