“Physical Condition Markers of Men of Mature Age in High Intensity Physical Activity During the Summer Season”, Fiz. vihov. sport kul’t. zdor. suchas. susp., no. 1(33), pp. 69–75, Mar. 2016, Accessed: May 03, 2024. [Online]. Available: https://sport.vnu.edu.ua/index.php/sport/article/view/43