Mutashar, Ali Ghanim, Ruaa Abbas Esiwed, Jasim Qasim Abbas, and Asaad Adnan Aziz. “The Effect of Economic Training on Some Physiological Variables and Physical Abilities for 1500 M Run of Advanced Class”. Journal of Human Sport and Exercise 16, no. 4proc (November 11, 2021): S1882-S1888. Accessed April 25, 2024. https://www.jhse.ua.es/article/view/2021-v16-n4-proc-effect-economic-training-physiological-variable.