Table 4 Rating of perceived exertion (RPE) after all the procedures (Borg scale)
Indicator | All | Caffeine consumers | Caffeine non-consumers | U | P | r g |
|---|---|---|---|---|---|---|
n = 22 | n = 10 | n = 12 | ||||
RPE | ||||||
Baseline | 13.8 (2.2) | 14.3 (2.6) | 13.4 (1.8) | 45.00 | 0.34 | −0.25 |
3 mg/kg | 14.2 (2.3) | 14.5 (1.4) | 13.9 (2.9) | 50.50 | 0.55 | −0.16 |
6 mg/kg | 13.6 (1.7) | 13.7 (1.4) | 13.5 (2.0) | 59.50 | 1.00 | 0.01 |
9 mg/kg | 13.5 (1.3) | 13.9 (1.3) | 13.2 (1.3) | 46.00 | 0.35 | −0.23 |
Placebo | 13.0 (2.6) | 13.6 (2.5) | 12.6 (2.6) | 47.00 | 0.41 | −0.22 |
Χ2 | 3.22 | 3.16 | 1.46 | – | – | – |
P | 0.52 | 0.53 | 0.83 | – | – | – |
Kendall’s W | 0.04 | 0.08 | 0.03 | – | – | – |