F.M. Al – Dulaimi R, Easa F. The effect of cardiorespiratory fitness training on developing speed endurance, heart rate adaptation, and men’s 1500-meter running performance. jope [انترنت]. 28 سبتمبر، 2024 [وثق 31 مارس، 2025];36(3):812-20. موجود في: https://jcope.uobaghdad.edu.iq/index.php/jcope/article/view/2052