Time | Placebo | Caffeine | Mean change (%) ± 90% confidence limits |
P | |
---|---|---|---|---|---|
HR | 5 min | 159 (17) | 169 (14) | .59 (.50) | |
10 min | 167 (21) | 178 (10) | .53 (.49) | .69 | |
RPE | 5 min | 13 (2) | 13 (2) | -.06 (.38) | |
10 min | 15 (2) | 14 (2) | -.14 (.60) | .79 | |
VO2(mL.kg-1.min-1) | 5 min | 21.74 (3.41) | 23.59 (4.28) | .54 (.69) | |
10 min | 22.97 (4.43) | 25.22 (4.31) | .51 (.69) | .75 | |
RER | 5 min | .99 (.08) | 1.01 (.09) | .23 (.59) | |
10 min | .94 (.05) | .95 (.06) | .08 (.63) | .43 |