Table 4.
Parameters analyzed in the Bruce test of study participants.
| Variables | Mild (n = 29) | Moderate (n = 32) | Severe/critical (n = 29) | |||
|---|---|---|---|---|---|---|
| Before | After | Before | After | Before | After | |
| VO2 peak (mL/kg/min) | 27.1 ± 9.4 | 26.2 ± 8.0 | 21.7 ± 8.9 | 23.2 ± 7.5 | 23.0 ± 5.5 | 23.8 ± 6.8 |
| Distance walked (m)* | 728.6 ± 291.1 | 743.8 ± 371.7 | 566.3 ± 254.8 | 618.4 ± 271.1 | 546.6 ± 222.3 | 619.7 ± 247.4 |
| HR peak (bpm) | 166 ± 23 | 162 ± 19 | 154 ± 25 | 154 ± 26 | 157 ± 24 | 159 ± 21 |
| Final SpO2 (%)† | 96.0 ± 3.1 | 94.2 ± 3.5 | 95.2 ± 2.6 | 95.5 ± 2.0 | 92.2 ± 3.8 | 92.5 ± 4.7 |
| Final SBP (mmHg) | 158.6 ± 18.1 | 159.4 ± 19.0 | 151.6 ± 25.3 | 153.6 ± 21.6 | 159.3 ± 14.8 | 159.0 ± 23.1 |
| Final DBP (mmHg)# | 78.5 ± 7.6 | 82.9 ± 13.3 | 90.0 ± 13.2 | 86.6 ± 11.5 | 89.5 ± 14.3 | 86.6 ± 12.8 |
| RQ peak | 1.1 ± 0.2 | 1.1 ± 0.2 | 1.1 ± 0.1 | 1.2 ± 0.2 | 1.1 ± 0.1 | 1.3 ± 0.3§ |
| RPE peak | 16 ± 3 | 17 ± 2 | 17 ± 3 | 16 ± 3 | 16 ± 3 | 17 ± 2 |
Data are presented as mean and standard deviation ( ±); DBP = diastolic blood pressure; HR = heart rate; SBP = systolic blood pressure; RPE = rating of perceived exertion; RQ = respiratory coefficient; SpO2 = peripheral oxygen saturation; VO2 peak = peak oxygen consumption; * = time effect between first and second assessment (p < 0.05); † = group effect with lower values for severe/critical group vs. mild and moderate groups (p < 0.05); # = group effect with lower values for mild group vs. moderate and severe/critical groups (p < 0.05); § = interaction effect between time and group (p < 0.001); ¶ = a intra-group difference (p < 0.05).