Leisure-time vigorous physical activity is associated with better lung function: the prospective ECRHS study.

Objective: We assessed associations between physical activity and lung function, and its decline, in the prospective population-based European Community Respiratory Health Survey cohort.
Methods: FEV ₁ and FVC were measured in 3912 participants at 27-57 years and 39-67 years (mean time between examinations=11.1 years). Physical activity frequency and duration were assessed using questionnaires and used to identify active individuals (physical activity ≥2 times and ≥1 hour per week) at each examination. Adjusted mixed linear regression models assessed associations of regular physical activity with FEV ₁ and FVC.
Results: Physical activity frequency and duration increased over the study period. In adjusted models, active individuals at the first examination had higher FEV ₁ (43.6 mL (95% CI 12.0 to 75.1)) and FVC (53.9 mL (95% CI 17.8 to 89.9)) at both examinations than their non-active counterparts. These associations appeared restricted to current smokers. In the whole population, FEV ₁ and FVC were higher among those who changed from inactive to active during the follow-up (38.0 mL (95% CI 15.8 to 60.3) and 54.2 mL (95% CI 25.1 to 83.3), respectively) and who were consistently active, compared with those consistently non-active. No associations were found for lung function decline.
Conclusion: Leisure-time vigorous physical activity was associated with higher FEV ₁ and FVC over a 10-year period among current smokers, but not with FEV ₁ and FVC decline.
Competing Interests: Competing interests: PD reports consulting fees from ALK, Stallergènes Greer, Circassia, Chiesi, Thermofisher Scientific and Ménarini, and AGC reports grants from Chiesi Farmaceutici and from GlaxoSmithKline Italy, during the conduct of the study. Other authors declare no competing interests related to this work.
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