The incremental exercise test was performed on a treadmill (Super ATL, Inbrasport, Brazil), according to the maximal Vanderlei et al. International Archives of Medicine 2013, 6:33 Page 2 of 10 http://www.intarchmed.com/content/6/1/33
Bruce protocol [16], to determine peak oxygen consumption (peak VO2) and adopt 60% of this value for the load used in the following steps.