Pulmonary function and physical fitness in obese children and adolescents: a comparison of impulse oscillometry, spirometry, and 6-min walk test
A cross-sectional comparison of 120 children aged 8-15 found shorter six-minute walk distance and higher impulse-oscillometry markers of peripheral airway resistance in the obesity group, while FEV1 did not differ. The study identifies associations at one time point and cannot establish that obesity caused the differences.