Table 1

Strength and body composition at baseline and one year follow up


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)

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.

Hopkinson et al. Respiratory Research 2007 8:25   doi:10.1186/1465-9921-8-25