Ahmed Al-Hayali omar, عمر, Mohammed Abdul-Allah A, اياد. The effect of simultaneous and sequential exercises of the phosphagen and lactate energy systems on a number of physical and functional variables and achievement in the 200-meter sprint for juniors. RJSS [Internet]. 2025 Jun. 24 [cited 2025 Aug. 4];26(81):341-82. Available from: https://ojs.uomosul.edu.iq/index.php/rjss/article/view/11418