Physical activity associates with disease characteristics of severe asthma, bronchiectasis and COPD

Cordova-Rivera, Laura and Gibson, Peter G. and Gardiner, Paul A. ORCID: and McDonald, Vanessa M. (2019) Physical activity associates with disease characteristics of severe asthma, bronchiectasis and COPD. Respirology, 24 (4). pp. 352-360. ISSN 1323-7799


Background and objective: Physical activity (PA) in obstructive airway diseases (OAD) is likely to be impaired but this has not been extensively studied outside of chronic obstructive pulmonary disease (COPD). We describe PA levels in severe asthma and bronchiectasis compared to moderate–severe COPD and to controls, and tested the cross-sectional associations of PA (steps/day) with shared disease characteristics in the OAD group. Methods: Adults with OAD (severe asthma = 62, COPD = 67, bronchiectasis = 60) and controls (n = 63) underwent a multidimensional assessment, including device-measured PA levels. Results: The OAD group included 189 participants (58.7% females), with median (interquartile range) age of 67 (58–72) years and mean forced expiratory volume in the first second (FEV 1 ) % predicted of 69.4%. Demographic characteristics differed between groups. Compared to controls (52.4% females, aged 55 (34–64) years, median 7640 steps/day), those with severe asthma, bronchiectasis and COPD accumulated less steps/day: median difference of −2255, −2289, and −4782, respectively (P ≤ 0.001). Compared to COPD, severe asthma and bronchiectasis participants accumulated more steps/day: median difference of 2375 and 2341, respectively (P ≤ 0.001). No significant differences were found between the severe asthma and bronchiectasis group. Exercise capacity, FEV 1 % predicted, dyspnoea and systemic inflammation differed between groups, but were each significantly associated with steps/day in OAD. In the multivariable model adjusted for all disease characteristics, exercise capacity and FEV 1 % predicted remained significantly associated. Conclusion: PA impairment is common in OAD. The activity level was associated with shared characteristics of these diseases. Interventions to improve PA should be multifactorial and consider the level of impairment and the associated characteristics. © 2018 Asian Pacific Society of Respirology

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Permanent restricted access to Published version in accordance with the copyright policy of the publisher.
Faculty/School / Institute/Centre: No Faculty
Faculty/School / Institute/Centre: No Faculty
Date Deposited: 11 Oct 2021 05:35
Last Modified: 20 Oct 2021 01:29
Uncontrolled Keywords: accelerometry; asthma; bronchiectasis; chronic obstructive pulmonary disease; motor activity
Fields of Research (2008): 11 Medical and Health Sciences > 1102 Cardiovascular Medicine and Haematology > 110203 Respiratory Diseases
11 Medical and Health Sciences > 1117 Public Health and Health Services > 111706 Epidemiology
11 Medical and Health Sciences > 1106 Human Movement and Sports Science > 110699 Human Movement and Sports Science not elsewhere classified
Fields of Research (2020): 32 BIOMEDICAL AND CLINICAL SCIENCES > 3201 Cardiovascular medicine and haematology > 320103 Respiratory diseases
42 HEALTH SCIENCES > 4207 Sports science and exercise > 420799 Sports science and exercise not elsewhere classified
42 HEALTH SCIENCES > 4202 Epidemiology > 420201 Behavioural epidemiology
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