Israa Kamil Hasan, and Asmaa Hameed Kambash. “The Effect of High-Intensity Competition Speed Training Using the DYNA FOOT Device on Developing Speed Endurance and Some Biomechanical Variables and the Performance of 400-Meter Hurdles”. Modern Sport 22, no. 3 (September 30, 2023): 0001–0009. Accessed May 9, 2024. https://jcopew.uobaghdad.edu.iq/index.php/sport/article/view/1096.