Table 2 Pulmonary function, exercise capacity and smoking history of subject groups

FVC (liters)

3.85 ± 0.42

2.88 ± 0.16^c

4.27 ± 0.64^e

2.80 ± 0.32^c,e

3.96 ± 0.57^d

FVC (% pred)

88 ± 6^c

79 ± 5^c

109 ± 6^e

77 ± 8^c,e

95 ± 6^d

FEV1 (liters)

1.23 ± 0.25^c,e

1.35 ± 0.22^c,e

3.22 ± 0.47^e

1.49 ± 0.11^c,e

3.07 ± 0.35^d

FEV1 (% pred)

35 ± 5^c,e

47 ± 7^c,e

107 ± 4^e

54 ± 7^c,e

93 ± 4^d

FEV1/FVC

31 ± 3^c,d,e

47 ± 7^c,e

76 ± 7^c,e

56 ± 4^c,e

79 ± 2^d

FEV1/FVC (% pred)

40 ± 4^c,d,e

61 ± 10^c,e

97 ± 2^e

71 ± 6^c,e

99 ± 3^d

Bike (two-legs) exercise

Watts

62 ± 6^c,e

46 ± 11^c,e

176 ± 47^d,e

70 ± 11^c,e

126 ± 17^d

VO2peak (L/min)

1.02 ± 0.11^c,e

0.69 ± 0.13^c,e

2.07 ± 0.51^d

1.16 ± 0.12^c,e

1.71 ± 0.25^d

VO2peak (ml/kg/min)

12.6 ± 0.5^c

9.5 ± 1.1^c,e

26.9 ± 5.6^d,e

14.9 ± 1.7^c

20.3 ± 3.3

Knee extensor (single-leg) exercise

Watts

25 ± 3^c

21 ± 7^c

59 ± 23^d,e

21 ± 3^c

26 ± 1

Smoking history

Never

17%

0%

25%

0%

0%

Ex-smoker

83%

100%

75%

43%

100%

Current

0%

0%

0%

57%

0%