Protas М, Ivashchenko О, Kravchuk Т. Influence of Combined Fitness Classes on Physical Preparedness and Posture Formation in Primary School Children. J. learn. theory methodol. [Internet]. 2023 Jul. 31 [cited 2026 Jun. 13];4(2):50-6. Available from: https://ltmjournal.com/e/article/view/74