Table 1.

Borg rating of perceived exertion (RPE) 6–20 scale [13].

Rating	Perceived Exertion
20	Maximal exertion
19	Extremely hard
17–18	Very hard
15–16	Hard
13–14	Somewhat hard
10–12	Light
8–9	Very light
7	Extremely light
1–6	No exertion at all