PMC full text:
Published online 2021 Jan 27. doi: 10.3390/biom11020171
Figure 2
Descriptive Mean and SD of recorded internal load of the acute intense exercise using (A) HRmax and (B) RPE for each group separately. NSnE = non-smokers that did not exercise; NSE = non-smokers that did exercise; SnE = smokers that did not exercise; SE = smokers that did exercise; RPE = Ratings of Perceived Exertion; A.U. =Arbitrary unit.