“…Physical education of schoolchildren is considered as a factor of children's health protection (Krutsevich, Marchenko, Trachuk, Panhelova, Napadij, & Dovgal, 2021;Prystynskyi, Babych, Zaytsev, Boychuk, & Taymasov, 2020;Freitas, Lausen, Maia, Gouveia, Antunes, Thomis, Lefevre, & Malina, 2018). In all regions of the world, attention is given to motor activity of children and improvement of physical education at school (Gastin, Tangalos, Torres, & Robertson, 2017;Lopes, Saraiva, Gonçalves, & Rodrigues, 2018;Famelia, Tsuda, Bakhtiar, & Goodway, 2018).…”