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Background: Physical activity levels are low in people with chronic obstructive pulmonary disease, and there is limited knowledge about how pulmonary rehabilitation transforms movement behaviors. This study analyzed data from a pulmonary rehabilitation trial and identified determinants of movement behaviors. Methods: Objectively assessed time in daily movement behaviors (sleep, sedentary, light-intensity physical activity, and moderate- to vigorous-intensity physical activity) from a randomized controlled trial (n = 73 participants) comparing home- and center-based pulmonary rehabilitation was analyzed using conventional and compositional analytical approaches. Regression analysis was used to assess relationships between movement behaviors, participant features, and response to the interventions. Results: Compositional analysis revealed no significant differences in movement profiles between the home- and center-based groups. At end rehabilitation, conventional analyses identified positive relationships between exercise capacity (6-min walk distance), light-intensity physical activity, and moderate- to vigorous-intensity physical activity time. Compositional analyses identified positive relationships between a 6-minute walk distance and moderate- to vigorous-intensity physical activity time, accompanied by negative relationships with sleep and sedentary time (relative to other time components) and novel relationships between body mass index and light-intensity physical activity/sedentary time. Conclusion: Compositional analyses following pulmonary rehabilitation identified unique associations between movement behaviors that were not evident in conventional analyses.
Burge, Holland, Cox, Lahham, Nicolson, and Gillies are with the Discipline of Physiotherapy, La Trobe University, Melbourne, VIC, Australia. Burge, Holland, Lee, and Nicolson are also with the Department of Physiotherapy, Alfred Health, Melbourne, VIC, Australia. Burge, Holland, McDonald, Hill, Lee, Cox, Lahham, and Moore are also with the Institute for Breathing and Sleep, Melbourne, VIC, Australia. Burge, Holland, Cox, and Lahham are also with the Department of Allergy, Clinical Immunology and Respiratory Medicine, Monash University, Melbourne, VIC, Australia. Palarea-Albaladejo is with the Biomathematics and Statistics Scotland, JCMB, Edinburgh, United Kingdom. Abramson is with the Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, VIC, Australia. McDonald is also with the Department of Respiratory and Sleep Medicine, Austin Health, Melbourne, VIC, Australia; and the Department of Medicine, The University of Melbourne, Melbourne, VIC, Australia. Mahal is with the Nossal Institute for Global Health, The University of Melbourne, Melbourne, VIC, Australia. Hill and Gillies are also with the Department of Physiotherapy, Austin Health, Melbourne, VIC, Australia. Lee is also with the Department of Physiotherapy, Monash University, Melbourne, VIC, Australia. O’Halloran is with the Department of Public Health, La Trobe University, Melbourne, VIC, Australia. Chastin is with the School of Health and Life Sciences, Glasgow Caledonian University, Glasgow, United Kingdom; and the Department of Movement and Sports Science, Ghent University, Ghent, Belgium.