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Comparison between conditions at the end of the exercise test.
| No Mask | Surgical Mask | Cloth Mask | |
|---|---|---|---|
| Blood oxygen saturation (%) | 96 ± 4 | 96 ± 3 | 95 ± 3 |
| Tissue oxygenation index (%) | 58 ± 14 | 57 ± 12 | 58 ± 12 |
| Rating of perceived exertion | 9.9 ± 0.5 | 9.9 ± 0.4 | 9.7 ± 0.6 |
| Heart rate (beats per minute) | 179 ± 16 | 179 ± 19 | 182 ± 12 |
All values are mean ± SD.
