Table 1.

Ratings of perceived exertion at 80% $\dot{\text{V}}{\text{O}}_{\text{2}}$max.

	5 min	10 min	15 min	20 min	25 min	Exhaustion
PLA	16 ± 2	18 ± 2	19 ± 2	18 ± 2	18 ± 1	19 ± 1
PLA+C	16 ± 2	17 ± 1	18 ± 1	18 ± 1	18 ± 2	19 ± 1
BR	17 ± 2	17 ± 2	19 ± 1	17 ± 1	18 ± 1	19 ± 1
BR+C	16 ± 1	17 ± 2	17 ± 1*	18 ± 1	18 ± 1	19 ± 1

Data are expressed as mean ± SD. *Different from PLA and PLA+C; P ≤ 0.047. PLA: placebo; PLA+C: placebo plus caffeine; BR: beetroot; BR+C: beetroot plus caffeine.