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dc.contributor.authorHoaas, Hanne
dc.contributor.authorZanaboni, Paolo
dc.contributor.authorHjalmarsen, Audhild
dc.contributor.authorMorseth, Bente
dc.contributor.authorDinesen, Birthe
dc.contributor.authorBurge, Angela T.
dc.contributor.authorCox, Narelle S.
dc.contributor.authorHolland, Anne E.
dc.date.accessioned2019-06-26T08:04:00Z
dc.date.available2019-06-26T08:04:00Z
dc.date.issued2019-06-05
dc.description.abstract<i>Purpose</i>: Seasons and weather conditions might influence participation in physical activity and contribute to differences between countries. This study aimed at investigating whether there were differences in physical activity levels between Norwegian, Danish and Australian people with chronic obstructive pulmonary disease (COPD), and establishing if any variations in physical activity were attributable to seasons.<p> <p><i>Patients and methods</i>: A cross-sectional study where study subjects were people with COPD who participated in two separate clinical trials: the iTrain study (Norway, Denmark, and Australia) and the HomeBase study (Australia). Physical activity was objectively assessed with an activity monitor; variables were total energy expenditure, number of daily steps, awake sedentary time, light, and moderate-to-vigorous intensity physical activity. Differences in physical activity between countries and seasons were compared, with adjustment for disease severity.<p> <p><i>Results</i>: In total, 168 participants were included from Norway (N=38), Denmark (N=36) and Australia (N=94). After controlling for disease severity, time spent in awake sedentary time was greater in Danish participants compared to the other countries (median 784 minutes/day [660–952] vs 775 minutes/day [626–877] for Norwegians vs 703 minutes/day [613–802] for Australians, <i>P</i>=0.013), whilst time spent in moderate to vigorous physical activity was lower (median 21 minutes/day [4–73] vs 30 minutes/day [7–93] for Norwegians vs 48 minutes/day [19–98] for Australians, <i>P</i>=0.024). Participants walked more during summer (median 3502 [1253–5407] steps/day) than in spring (median 2698 [1613–5207] steps/day), winter (median 2373 [1145–4206] steps/day) and autumn (median 1603 [738–4040] steps/day), regardless of geography. The median difference between summer and other seasons exceeded the minimal clinically important difference of 600 steps/day. However, the differences were not statistically significant (<i>P</i>=0.101).<p> <p><i>Conclusion</i>: After controlling for disease severity, Danish participants spent more time in an awake sedentary state and less time in moderate to vigorous physical activity than their counterparts in Norway and Australia. People with COPD increased their physical activity in summer compared to other seasons. Weather conditions and seasonal variations may influence outcomes in clinical trials and health registries measuring physical activity over time, irrespective of the interventions delivered, and should be taken into account when interpreting results.<p>en_US
dc.description.sponsorshipUiT The Arctic University of Norway Northern Norway Regional Health Authority Lung Foundation Australia National Health and Medical Research Councilen_US
dc.descriptionSource at <a href=https://doi.org/10.2147/COPD.S194622>https://doi.org/10.2147/COPD.S194622. </a>en_US
dc.identifier.citationHoaas, H., Zanaboni, P., Hjalmarsen, A., Morseth, B., Dinesen, B., Burge, A.T. ... Holland, A.E. (2019). Seasonal variations in objectively assessed physical activity among people with COPD in two Nordic countries and Australia: a cross-sectional study. <i>International Journal of Chronic Obstructive Pulmonary Disease, 14</i>, 1219-1228. https://doi.org/10.2147/COPD.S194622en_US
dc.identifier.cristinIDFRIDAID 1702820
dc.identifier.doi10.2147/COPD.S194622
dc.identifier.issn1176-9106
dc.identifier.issn1178-2005
dc.identifier.urihttps://hdl.handle.net/10037/15605
dc.language.isoengen_US
dc.publisherDove Medical Pressen_US
dc.relation.ispartofHoaas, H. (2019). Long-term exercise maintenance via telerehabilitation for people with COPD. Feasibility, effectiveness, benefits and challenges. (Doctoral thesis). <a href=https://hdl.handle.net/10037/15618>https://hdl.handle.net/10037/15618. </a>
dc.relation.journalThe International Journal of Chronic Obstructive Pulmonary Disease
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/BEHANDLING / 228919/Norway/Long-Term Integrated Telerehabilitation of COPD Patients. A Multi-Center Randomized Controlled Trial//en_US
dc.rights.accessRightsopenAccessen_US
dc.subjectchronic obstructive pulmonary diseaseen_US
dc.subjectactivity monitoringen_US
dc.subjectpopulation comparisonen_US
dc.subjectseasonsen_US
dc.subjectweatheren_US
dc.subjectVDP::Medical disciplines: 700en_US
dc.subjectVDP::Medisinske Fag: 700en_US
dc.titleSeasonal variations in objectively assessed physical activity among people with COPD in two Nordic countries and Australia: a cross-sectional studyen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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