RPE
Borg scale
6-20 scale
0-10 scale
original scale
7- very very light 9- very light 11- fairly light 13- somewhat hard 15- hard 17 very hard 19 very very hard
revised rpe scale
0 nothing at all 0.5 very very weak 1 very weak 2 weak 3 moderate 4 somewhat strong 5 strong 7 very strong 10 very very strong
RPE 13-14
represents 70% max heart rate
ROE 11-13
upper limit of prescribed training heart rates in early cardiac training