“…Initially, CrossFit was considered an exercise system to improve physical condition, but soon it turned into a "fitness sport", representing a complex synthesis of several sports events or sports games [9,12,13,14]. CrossFit is a powerful motivation means for high-intensity functional training of young people [15,16,17], a means of increasing strength, aerobic and anaerobic capacities [17,18,19] and strengthening youth health [13,14]. Despite a sufficient number of works confirming the effectiveness of the CrossFit® system impact on the body of students [2,17,18,19], the studies of foreign and national (Ukrainian) authors lack a comparison of the efficiency of different youth physical training programs.…”