Aldabagh, A., & Jasem Alhyali, A. (2019). Responses of the Respiratory Ventilation and Certain ECG to the VO2 Percentage in two Aerobic Stresses depending upon Resistance and Speed. Al-Rafidain Journal For Sport Sciences, 22(69), 1–46. https://doi.org/10.33899/rajsport.2019.163015