ABDULHASSAN , Zahaa; HAMEED , Intisar. The Effect of Special Speed Exercises on The Variables of The First Arc of 400-Meter Hurdles Race Under 20 Years of Age. Journal of Physical Education, Baghdasd, Iraq., v. 36, n. 3, p. 869–879, 2024. DOI: 10.37359/JOPE.V36(3)2024.2033. Disponível em: https://www.jcope.uobaghdad.edu.iq/index.php/jcope/article/view/2033. Acesso em: 30 2025.