Table 2.

Resting pulmonary function, diffusion capacity, and exercise capacity for control and preterm subjects

	Control (n = 16)	Preterm (n = 14)
FVC, L	5.17 ± 1.3 (109.2 ± 12.2)	4.45 ± 0.68 (105.0 ± 12.8)
FEV1, L	4.01 ± 0.92 (99.8 ± 12.1)	3.30 ± 0.60 (90.5 ± 11.5)
FEV1/FVC	78.56 ± 8.19 (92.25 ± 9.57)	75.00 ± 9.23 (87.7 ± 10.7)
FEF25–75, L	3.70 ± 1.17 (85.3 ± 20.8)	2.70 ± 0.98 (66.4 ± 20.4)*
DlCO, ml/min/mm Hg	28.18 ± 7.54 (88.5 ± 12.0)	26.80 ± 7.64 (86.5 ± 15.5)
Va, L	5.8 ± 1.2 (98.9 ± 5.9)	5.5 ± 1.0 (99.4 ± 11.1)
$\stackrel{.}{\text{V}}$o2max, ml/min/kg	38.9 ± 1.6 (100.9 ± 13.9)	39.5 ± 1.7 (106.7 ± 29.3)
Powermax, W	230 ± 10 (110.7 ± 21.8)	200 ± 10 (107.9 ± 19.7)

Definition of abbreviations: Dl_CO = diffusion capacity of the lung for carbon monoxide; FEF_25–75 = forced expiratory flow from 25 to 75% of FVC; power_max = maximal power output; Va = alveolar volume; $\stackrel{.}{\text{V}}$o₂max = maximal O₂ consumption.

Values represent means ± SD (FVC through VA). Values for $\stackrel{.}{\text{V}}$o₂max and power_max are sex-adjusted and represented as means ± SE.

^*P = 0.04 versus control.