وليد عا, ساده م. An analytical study of some biomechanical variables related to rotation and their relationship to the achievement of 100m backstroke swimming for young people. JSSTPA [Internet]. 2025 Dec. 1 [cited 2026 Jan. 11];22(2):250-6. Available from: https://revue.univ-mosta.dz/index.php/jsstpa/article/view/1134