Table 2.
Mean (±SD) rating of perceived exertion (RPE) for every 2 km of distance traveled in cycling time trial (TT).
| Distance | ||||||||
|---|---|---|---|---|---|---|---|---|
| Treatment | 2 km | 4 km | 6 km | 8 km | 10 km | 12 km | 14 km | 16 km |
| PP | 3.56 ± 1.01 | 4.67 ± 1.22 a | 5.67 ± 1.32 a | 6.44 ± 1.13 a | 6.89 ± 1.05 a | 8.11 ± 0.93 a | 9.00 ± 1.00 a | 9.11 ± 0.78 a |
| PC | 3.44 ± 1.51 | 4.67 ± 1.32 a | 5.78 ± 1.48 a | 6.56 ± 1.42 a | 7.11 ± 1.05 a | 8.00 ± 1.12 a | 8.78 ± 0.97 a | 9.00 ± 1.0 a |
| CC | 4.00 ± 1.32 | 4.67 ± 1.12 a | 5.56 ± 1.42 a | 6.67 ± 1.22 a | 7.22 ± 0.83 a | 8.00 ± 1.00 a | 8.67 ± 1.32 a | 8.78 ± 1.30 a |
| CP | 4.11 ± 1.54 | 5.22 ± 1.72 a | 6.22 ± 1.64 a | 7.00 ± 1.41 a | 7.44 ± 1.13 a | 8.67 ± 1.12 a | 9.00 ± 1.00 a | 9.11 ± 0.93 a |
PP, Placebo–Placebo; PC, Placebo–Caffeine; CC, Caffeine–Caffeine; CP, Caffeine–Placebo. a Significant difference from 2 km (p < 0.05).