Hussein Tobel, A., and omar hazim. “The Effectiveness of the Specific Fatigue Index in Predicting the Technical Performance Level of Advanced Parkour Gymnasts in Nineveh Governorate”. Al-Rafidain Journal For Sport Sciences, vol. 27, no. 85, Oct. 2024, pp. 302-24, doi:10.33899/rjss.2024.185229.