| Healthy | Emphysema | IPF |
---|---|---|---|
Peak \( \overset{.}{V} \) O2 (l · min−1) | 2.66 ± 0.70 | 1.35 ± 0.13a | 1.41 ± 0.13ab |
Peak \( \overset{.}{V} \) O2 (l · kg-0.66 · min−1) | 2.06 ± 0.62 | 1.04 ± .023a | 1.06 ± 0.33a |
GET (l · min−1) | 1.48 ± 0.50 | 0.80 ± 0.11a | 0.95 ± 0.15a |
GET (%) | 56 ± 12 | 57 ± 4 | 67 ± 7 |
Peak HR (b · min−1) | 177 ± 12 | 142 ± 17* | 142 ± 31a |
Time to Exhaustion (min) | 12.9 ± 3.2 | 9.5 ± 0.8 | 11.7 ± 3.5 |