| Elite | Recreational | p-values (ES) | |||
---|---|---|---|---|---|---|
Supplementation | Group | Supplementation x Group | ||||
Wmax | Caffeine | 10.85 ± 0.48 | 11.52 ± 0.62 | 0.003** (0.44) | 0.009** (0.36) | 0.431 (0.04) |
 | Placebo | 10.19 ± 0.59 | 11.11 ± 0.8 | |||
Wavg | Caffeine | 8.69 ± 0.38 | 8.8 ± 0.67 | 0.001**(0.53) | 0.378 (0.07) | 0.290 (0.05) |
 | Placebo | 8.25 ± 0.37 | 8.54 ± 0.51 | |||
Wmin | Caffeine | 6.49 ± 0.22 | 6.01 ± 1.1 | 0.452 (0.04) | 0.345 (0.06) | 0.422 (0.04) |
 | Placebo | 6.19 ± 0.56 | 6.02 ± 0.89 |  |  |  |
T Wmax | Caffeine | 8.00 ± 1.6 | 7.2 ± 1.55 | <0.001*** (0.57) | 0.783 (0.05) | 0.077 (0.18) |
 | Placebo | 8.88 ± 1.64 | 9.3 ± 1.49 |  |  |  |