“SPEED-BASED HIGH-INTENSITY INTERVAL APPROACH AS AN ALTERNATIVE TO HEART RATE TRAINING: SIMILAR GAIN WITH LESS PAIN”, Kinesiology, vol. 50, no. 1, pp. 11–17, Jun. 2018, Accessed: Aug. 24, 2025. [Online]. Available: https://ojs.srce.hr/index.php/kinesiology/article/view/6318