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Table 1 Strength and body composition at baseline and one year follow up

From: A prospective study of decline in fat free mass and skeletal muscle strength in chronic obstructive pulmonary disease

 

Subjects not followed up n = 43

Baseline n = 64

One Year follow up n = 64

QMVC (kg)

32.2 (12.8)

34.8 (1.5)

33.3 (1.5)*

QMVC %predicted

64.6 (20.8)

66.3 (17.9)

62.3 (17.7)*

BMI (kgm-2)

23.5 (4.4)

24.3 (5.2)

24.7 (5.4)

Weight (kg)

67.1 (15.0)

70.5 (15.7)

71.4 (15.9)

FFM (kg)

46.7 (8.3)

47.5 (8.3)

47.3 (7.9)

SNiP (cmH2O)

61.5 (19.6)

67.4 (19.5)

69.9 (21.9)

PEmax (cmH2O)

89.2 (30.2)

98.9 (43.9)

100.0 (44.3)

Age (years)

65.5 (9.9)

62.0 (9.4)

 

FEV1 %predicted

40.5 (17.9)

36.0 (18.4)

36.3 (19.4)

TLCO %predicted

39.8 (19.9)

40.1 (19.3)

40.5 (20.0)

FRC %predicted

181 (32)

176 (41)

175 (39)

PaCO2 (kPa)

5.2 (1.1)

5.2 (0.9)

5.2 (0.9)

PaO2 (kPa)

9.4 (1.4)

9.4 (1.6)

9.2 (1.4)

  1. QMVC – quadriceps maximum voluntary contraction, FFM – fat free mass, SNiP – sniff nasal pressure, PEmax – maximum expiratory pressure, FEV1 – forced expiratory volume in one second, TLCO – carbon monoxide transfer factor, FRC functional residual capacity. Mean (SD). There was no significant difference at baseline between patients who were or were not followed up at one year. *p < 0.05 vs baseline.