Effects of replacing sitting time with physical activity on lung function: an analysis of the Canadian Longitudinal Study on Aging

Dogra, Shilpa and Good, Joshua and Gardiner, Paul A. ORCID: https://orcid.org/0000-0002-8072-2673 and Copeland, Jennifer L. and Stickland, Michael K. and Rudoler, David and Buman, Matthew P. (2019) Effects of replacing sitting time with physical activity on lung function: an analysis of the Canadian Longitudinal Study on Aging. Health Reports, 30 (3). pp. 15-26. ISSN 0840-6529


Abstract

Background: Sitting time and physical activity may be modifiable determinants of lung function. The purpose of this study was to assess the effect that replacing various movement behaviours has on lung function among individuals with and without obstructive lung disease.

Data and methods: For analysis, data were used from participants of the Canadian Longitudinal Study on Aging, recruited between 2012 and 2015. Lung function was assessed using spirometry. A modified version of the Physical Activity Scale for the Elderly was used to assess sitting time and physical activity levels. Isotemporal substitution analysis was performed to analyze the effects of replacing 30 minutes per day of one movement behaviour with another, keeping the total time constant. Analyses were run separately for individuals with an obstructive lung disease (asthma, chronic obstructive pulmonary disease, or forced expiratory volume in 1 second [FEV1] < 5th percentile lower limit of normal; n=3,398), and healthy adults (n=14,707).

Results: When sitting time was replaced with 30 minutes per day of any type of physical activity or sleep, an increase in percent (%) of predicted FEU, (i.e., beta=0.65, confidence interval [CI]: 0.43, 0.88 for replacing sitting time with strenuous or strengthening activity) was observed among healthy adults. Among adults with obstructive lung disease, replacing 30 minutes per day of sitting time or sleep duration with strenuous or strengthening activity was associated with an improvement in the percent of predicted FEV1 (i.e., beta=0.98, CI: 0.13, 1.82 for replacing sleep duration with strenuous or strengthening activity).

Interpretation: Replacing sitting time with physical activity leads to significant improvements in lung function among adults with an obstructive lung disease, as well as among adults without a respiratory disease.


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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: 21 Oct 2021 23:56
Last Modified: 03 Nov 2021 06:18
Uncontrolled Keywords: Asthma; COPD; Exercise; pulmonary disease; sedentary time
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 > 4202 Epidemiology > 420201 Behavioural epidemiology
42 HEALTH SCIENCES > 4207 Sports science and exercise > 420799 Sports science and exercise not elsewhere classified
Identification Number or DOI: doi:10.25318/82-003-x201900300002-eng
URI: http://eprints.usq.edu.au/id/eprint/43553

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