Muafak Alrashdi, K., أیاد, A. Mohammad Abdullah Alzubaedi, and کرم. “The Effect of Two Different Methods According to a Computerized Running Training Programs for Interval Training in Lactate Level in Blood and Performance in A 400-Meter Sprint for Juniors”. Al-Rafidain Journal For Sport Sciences (RJSS), vol. 25, no. 79, June 2025, pp. 43-63, doi:10.33899/rjss.2022.175900.