“…The low physical activity level of schoolchildren is the main reason for their health deterioration and requires the development of methodological approaches to physical education in educational institutions (Krutsevych, & Chervotoka, 2019;Bahinska, 2015;Garkusha, 2013). The regulation of physical loads in physical education lessons is one of the factors that ensure the effectiveness of schoolchildren's physical education (Ivashchenko, Khudolii, Iermakov, Veremeenko, & Lopatiev, 2018;Veremeenko, Khudolii, & Ivashchenko, 2019).…”