Table 2.
Exercise characteristics of 22 normal weight (NW) and 22 obese (OB) patients with COPD
| |
Rest |
Peak |
||
|---|---|---|---|---|
| NW | OB | NW | OB | |
| VO2 (mL/min) |
284 ± 77 |
313 ± 81 |
1,114 ± 308 |
1,405 ± 482* |
| VO2/FFM (mL/kg) |
6.3 ± 2.0 |
5.9 ± 1.9 |
24.1 ± 5.7 |
25.6 ± 7.6 |
| Workload (watts) |
0 |
0 |
74 ± 24 |
94 ± 36* |
| VE (L/min) |
11.5 ± 2.2 |
10.7 ± 3.2 |
42.1 ± 13.1 |
40.8 ± 12.3 |
| IC/TLC |
0.28 ± 0.09 |
0.36 ± 0.08** |
0.25 ± 0.08 |
0.29 ± 0.08 |
| VT/VC |
0.23 ± 0.08 |
0.27 ± 0.07 |
0.42 ± 0.15 |
0.55 ± 0.11** |
| VT/IC |
0.36 ± 0.12 |
0.31 ± 0.09 |
0.73 ± 0.33 |
0.62 ± 0.11 |
| PETCO2 (mm Hg) |
30 ± 4 |
36 ± 3 |
36 ± 6 |
44 ± 7 |
| SpO2 (%) |
96 ± 2 |
95 ± 2 |
95 ± 2 |
94 ± 3 |
| HR (bpm) |
79 ± 14 |
84 ± 13 |
123 ± 18 |
124 ± 18 |
| O2Pulse (mL/bpm) |
3.6 ± 1.0 |
3.8 ± 0.9 |
9.2 ± 2.9 |
11.3 ± 3.7* |
| VAS dyspnea (mm/watt) |
0 |
0 |
1.17 ± 1.0 |
1.12 ± 0.9 |
| VAS fatigue (mm/watt) | 0 | 0 | 1.19 ± 0.5 | 0.89 ± 0.4* |
*p value < 0.05.
**p value < 0.01.
Values are expressed as mean ± SD.