“…In 1967, under the editorship of Kuznetsova [32], a collection of articles called "Development of the motor qualities of schoolchildren" was published, which presents studies on age-related development and methods of training speed of movements in children and adolescents [33], static endurance [34], the strength and endurance of the respiratory muscles [35], and speed-strength qualities [36], as well as balance functions [37]. These studies formed the basis for the development of physical education systems at schools, as well as training programs for young athletes in various sports.…”