Association between habitual physical activity (HPA) and sleep quality in patients with cystic fibrosis

Purpose Sleep disturbances and poor sleep quality are known to be present in patients with CF. Regular physical activity plays an important role in the treatment of CF patients due to its positive influence on progression of disease and quality of life. The aim of this work is to create a home-based sleep and activity profile and to investigate the influence of habitual physical activity (HPA) on sleep quality in children, adolescents, and adults with CF. Methods A total of 109 CF patients (64 male, mean age 22.7 +/- 12.0 years; mean ppFEV1 63.0 +/- 26.7) were equipped with an actigraph for a home-based collection of data on sleep and activity over 4 weeks. Results Age, FEV1, and BMI affect sleep and activity in CF patients. Especially younger age and higher FEV1 show a great influence on certain aspects of sleep (SE, TST, TIB, WASO, # of awakenings) and activity and its different intensities. General HPA does not affect sleep, but there is a strong correlation between times spent in vigorous to very vigorous intensities and better sleep quality. Conclusion Besides younger age and higher FEV1, daily activity in higher intensities influences sleeping behavior of CF patients in a positive way. Patients with poor sleep quality and sleep disturbances possibly benefit from an intensification of physical activity in the home environment. Trail registration number: 14-6117-BO (University Duisburg-Essen) and NCT 03518697 (clinical trials).