Table 2 Category-ratio scale of perceived exertion (CR-10) and original RPE

0 Nothing at all

6

0.5 Very, very weak (just noticeable)

7 Very, very light

1 Very weak

8

2 Weak (light)

9 Very light

3 Moderate

10

4 Somewhat strong

11 Fairly light

5 Strong (heavy)

12

6

13 Somewhat hard

7 Very Strong

14

8

15 Hard

9

16

10 Very, very strong (almost max)

17 Very hard

    ^*Maximal

18

19 Very, very hard

20