RPE	Intensity	Breathing	Talking	% VO2 Max
2	Easy	Normal	Normal easy	45
3	Moderate	Comfortable	Easy	55
4	Somewhat strong	Noticeable	Somewhat easy	65
5	Strong	Deep, but steady	Challenging but in control	75
6	Between strong & very strong	Deep and somewhat rapid	Difficult	85

*Because of the varied pace/effort, RPE is shown in a range