Table 4.
Repeated measure t-test showed the heart rate responses (HR) and rate of perceived exertion (RPE) during 6-min graded (10%) treadmill walking between wearing masks and without masks.
| Time |
Heart rates |
Rate of perceived exertions |
||
|---|---|---|---|---|
| Without Masks | With Masks | Without Masks | With Masks | |
| At rest | 73.9 ± 9.8 | 74.5 ± 10.0 | 6.6 ± 1.0 | 6.9 ± 1.2 |
| 1 min | 113.0 ± 10.2∗ | 115.9 ± 8.9∗ | 8.4 ± 1.7 | 9.0 ± 1.8 |
| 2 min | 120.1 ± 11.0∗ | 123.1 ± 11.4∗ | 9.3 ± 2.0 | 10.4 ± 2.1 |
| 3 min | 120.3 ± 11.0∗ | 124.5 ± 11.8∗ | 9.8 ± 2.0∗ | 11.4 ± 2.0∗ |
| 4 min | 122.0 ± 12.2∗ | 125.8 ± 13.2∗ | 10.2 ± 2.0∗ | 12.2 ± 2.0∗ |
| 5 min | 123.4 ± 12.3∗ | 127.6 ± 12.6∗ | 10.7 ± 2.0∗ | 12.5 ± 2.1∗ |
| 6 min | 124.4 ± 12.8∗ | 128.4 ± 13.2∗ | 10.8 ± 2.2∗ | 12.7 ± 2.1∗ |
∗significant differences at 0.01 level.