The aim of the present study was to investigate the different resting (HRR) and recovery heart rate levels (HRRP) by assessing the aerobic fitness of maximal oxygen uptake (VO2 max) measurement in soccer players. A sample of 20 male volunteers sought VO2 max values ​​through the use of ergospirometry during maximal cardiopulmonary exercise test (MCT) with a Polar RS810 heart rate monitor. Later, based...