Subject demographics (Means ± SD)

Age (years)31 ± 4
BMI (kg/m2)25.3 ± 3.1
Lean body mass (kg)58.3 ± 9.8
% body fat24.2 ± 8.1
Race (% Caucasian)53
FVC5.3 ± 1.0
FVC (%predicted)100.4 ± 10.8
% sedentary (<1 hr physical activity per week)33