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Table 2 Peak exercise response in healthy participants and in patients with emphysema and IPF

From: Pulmonary oxygen uptake and muscle deoxygenation kinetics during heavy intensity cycling exercise in patients with emphysema and idiopathic pulmonary fibrosis

 

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

  1. Mean ± S.D. \( \overset{.}{V} \) O2: oxygen uptake; GET: gas exchange threshold. aSignificant difference relative to healthy participants (P < 0.05) bSignificant difference between emphysema and IPF patients