Special exercises using a proposed training aid and the (A.S.H) device and their effects on certain physical abilities and the performance of the 110 m hurdles under 20 years. Journal of Humanities and Social Sciences Research, [S. l.], v. 4, n. 3, 2025. DOI: 10.33687/jhssr.004.03.0483. Disponível em: https://jhssrjournal.com/index.php/journal/article/view/483. Acesso em: 8 may. 2026.