Table 2.
6MWT results for the study subjects
| Characteristic | Females (n = 176) | Males (n = 179) | p-value* | Total (n = 355) |
|---|---|---|---|---|
| Activity | 624.9 ± 49.01 | 659.2 ± 43.02 | <0.001 | 646.1 ± 48.27 |
| Non-activity | 597.9 ± 49.72 | 631.3 ± 47.79 | <0.001 | 611.6 ± 51.52 |
| Resting HR, bpm | 76.2 ± 7.28 | 73.6 ± 8.38 | 0.002 | 74.9 ± 7.95 |
| Resting SpO2, % | 98.7 ± 0.97 | 97.9 ± 1.06 | <0.001 | 98.4 ± 1.08 |
| Resting SBP, mmHg | 110.8 ± 8.51 | 114.2 ± 6.77 | <0.001 | 112.5 ± 7.86 |
| Resting DBP, mmHg | 71.4 ± 8.27 | 72.0 ± 6.88 | NS | 71.7 ± 7.60 |
| 6MWD1, m | 586.8 ± 50.85 | 627.8 ± 46.26 | <0.001 | 607.5 ± 52.69 |
| 6MWD2, m | 601.3 ± 51.63 | 639.2 ± 48.87 | <0.001 | 620.4 ± 53.67 |
| Best 6MWD, m | 607.4 ± 51.00 | 646.9 ± 47.15 | <0.001 | 627.3 ± 52.88 |
| Borg after the 6MWT | 0.23 ± 0.43 | 0.22 ± 0.44 | NS | 0.22 ± 0.44 |
| HR after the 6MWT, bpm | 118.7 ± 22.45 | 112.8 ± 24.06 | 0.017 | 115.7 ± 23.43 |
| % mHR after the 6MWT | 60.5 ± 11.13 | 57.5 ± 12.0 | 0.015 | 59.0 ± 11.64 |
| Difference in HR, bpm | 42.5 ± 21.52 | 39.2 ± 22.71 | NS | 40.8 ± 22.16 |
| SpO2 after the 6MWT, % | 98.3 ± 1.01 | 97.6 ± 1.13 | <0.001 | 98.0 ± 1.10 |
| Change in SpO2, % | −0.43 ± 0.66 | −0.35 ± 0.73 | NS | −0.38 ± 0.71 |
| SBP after the 6MWT, mmHg | 125.6 ± 10.22 | 133.3 ± 12.33 | <0.001 | 129.5 ± 11.97 |
| DBP after the 6MWT, mmHg | 79.6 ± 7.34 | 81.7 ± 8.60 | 0.011 | 80.7 ± 8.06 |
Values are expressed as the mean ± SD
6MWT Six-minute walking test, 6MWD Six-minute walking distance, HR Heart rate, SpO 2 Oxygen saturation
%mHR Percentage of the predicted maximum heart rate, SBP Systolic blood pressure, DBP Diastolic blood pressure
*p-value between males and females