Al-Rashidi, K. M. H. ., and O. A. J. . Al-Hayali. “Effect of Two Descending Loads in Distance by Two Styles on Some Functional Variables and Performance in 400 Meter Sprint”. Indonesian Journal of Physical Education and Sport Science, vol. 4, no. 3, Aug. 2024, pp. 254-70, doi:10.52188/ijpess.v4i3.741.