Table 2.
Metabolic variables and rating of perceived effort recorded in response to the Wingate test according to the experimental conditions (beetroot juice or placebo supplementation).
| Variables | Placebo | CV (%) | BJ | CV (%) | % | T | p |
|---|---|---|---|---|---|---|---|
| Lactate-resting (mmol·L−1) | 1.7 ± 0.45 | 26.6 | 2.0 ± 0.53 | 26.7 | 15.9 | −2.051 | 0.059 |
| Lactate-final (mmol·L−1) * | 7.4 ± 2.84 | 38.0 | 13.6 ± 4.12 | 30.2 | 82.6 | −5.337 | 0.000 |
| RPE-muscular | 17.33 ± 1.58 | 9.2 | 17.80 ± 1.14 | 6.4 | 2.7 | −1.388 | 0.187 |
| RPE-cardiovascular | 16.53 ± 2.50 | 15.1 | 16.73 ± 1.70 | 10.2 | 1.2 | −0.315 | 0.757 |
| RPE-general | 17.60 ± 1.88 | 10.7 | 17.86 ± 1.12 | 6.3 | 1.5 | −0.459 | 0.653 |
BJ: beetroot juice; RPE = rating of perceived exertion; CV = coefficient of variation; * significant difference for placebo vs. BJ (p < 0.05). Data provided as the mean and standard deviation.