| Elite | Recreational | p-values (ES) | |||
---|---|---|---|---|---|---|
Supplementation | Group | Supplementation x Group | ||||
Tension | Caffeine | 8.00 ± 4.99†| 4.30 ± 3.77 | 0.001** (0.51) | 0.380 (0.05) | 0.021* (0.29) |
 | Placebo | 1.88 ± 3.56 | 2.90 ± 2.18 | |||
Depression | Caffeine | 3.63 ± 0.74 | 1.00 ± 1.25 | 0.894 (0.001) | 0.036* (0.25) | 0.242 (0.008) |
 | Placebo | 2.88 ± 0.99 | 1.60 ± 3.69 | |||
Anger | Caffeine | 0.38 ± 1.06 | 2.40 ± 3.10 | 0.690 (0.01) | 0.180 (0.08) | 0.241 (0.11) |
 | Placebo | 0.88 ± 1.81 | 1.40 ± 2.46 | |||
Vigor | Caffeine | 16.50 ± 2.62†# | 13.00 ± 3.02 | < 0.001*** (0.64) | 0.119 (0.14) | 0.004** (0.41) |
 | Placebo | 12.62 ± 2.33 | 12.10 ± 2.85 | |||
Fatigue | Caffeine | 2.50 ± 3.50 | 2.60 ± 2.22 | 0.008** (0.36) | 0.370 (0.05) | 0.088 (0.17) |
 | Placebo | 6.50 ± 4.54 | 3.60 ± 4.09 | |||
Confusion | Caffeine | 14.63 ± 3.54 | 12.20 ± 3.99 | 0.619 (0.02) | 0.324 (0.06) | 0.236 (0.09) |
 | Placebo | 14.13 ± 4.36 | 13.40 ± 2.22 | |||
SVS | Caffeine | 40.63 ± 4.78†| 38.40 ± 5.44 | < 0.001*** (0.59) | 0.597 (0.02) | 0.004** (0.41) |
 | Placebo | 31.75 ± 7.78 | 36.80 ± 5.71 |