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The comparison of cardiopulmonary exercise performance between mask-on and mask-off condition.
| Unit | Mask-off | Mask-on | Cohen’s d effect size | P value | |
| Test period | Minutes | 8.20 ± 1.39 | 7.98 ± 1.50 | 0.16 | 0.052 |
| Maximum load | Watt | 149.8 ± 46.0 | 142.9 ± 44.2 | 0.15 | <0.001 |
| Borg scale | Scores | 4.78 ± 1.72 | 5.69 ± 1.62 | 0.54 | <0.001 |
The values were shown in mean ± standard deviation. Significance level was set at P < 0.05. Significant results are indicated in bold.
