Table 4.
6MWT parameters
| COPD (n = 12) |
COPD+OSAS (n = 12) |
P-value | |
|---|---|---|---|
| Rest | |||
| SBP (mmHg) | 118 ± 10 | 129 ± 9 | 0.01* |
| HR (bpm) | 82 ± 11 | 79 ± 13 | 0.56 |
| SpO2 | 93 ± 3 | 95 ± 3 | 0.13 |
| BORG D | 0 ± 1 | 0 ± 0 | 0.10 |
| BORG P | 0 ± 1 | 0 ± 1 | 0.75 |
| Peaks | |||
| SBP (mmHg) | 147 ± 15 | 159 ± 25 | 0.17 |
| HR (bpm) | 104 ± 17 | 106 ± 13 | 0.72 |
| SpO2 | 87 ± 9 | 91 ± 4 | 0.21 |
| BORG D | 3 ± 2 | 2 ± 1 | 0.04* |
| BORG P | 4 ± 3 | 1 ± 1 | 0.01* |
| Covered distance | |||
| CD predicted (m) | 557.17 ± 38.48 | 571.58 ± 41.42 | 0.38 |
| CD reached (m) | 362.12 ± 123.14 | 419.04 ± 77.66 | 0.18 |
| % predicted | 64.58 ± 20.03 | 73.45 ± 13.54 | 0.21 |
| CDR COPD 1 and 2/CDR COPD+OSAS 3 and 4 | 320 ± 137 | 448 ± 33.05 | 0.18 |
| CDR COPD 3 and 4/CDR COPD+OSAS 1 and 2 | 394 ± 114 | 409 ± 87 | 0.76 |
Notes:
*
Significant difference between groups (unpaired t-test). The variables are presented as mean ± SD.
Abbreviations: 6MWT, 6-minute walk test; COPD, chronic obstructive pulmonary disease; OSAS, obstructive sleep apnea syndrome; SBP, systolic blood pressure; HR, heart rate; SpO2, peripheral oxygen saturation; BORG D, dyspnea Borg Scale; BORG P, leg discomfort Borg Scale; CD, covered distance; CDR, covered distance reach.