Differences in objectively measured physical activity and sedentary behaviour between White Europeans and South Asians recruited from primary care: Cross-sectional analysis of the PROPELS trial

Biddle, Gregory J. H., Edwardson, Charlotte L., Rowlands, Alex V., Davies, Melanie J., Bodicoat, Danielle H., Hardeman, Wendy, Eborall, Helen, Sutton, Stephen, Griffin, Simon, Khunti, Kamlesh and Yates, Thomas (2019) Differences in objectively measured physical activity and sedentary behaviour between White Europeans and South Asians recruited from primary care: Cross-sectional analysis of the PROPELS trial. BMC Public Health, 19. ISSN 1471-2458

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Abstract

Background Self-reported data have consistently shown South Asians (SAs) to be less physically active than White Europeans (WEs) in developed countries, however objective data is lacking. Differences in sedentary time have not been elucidated in this population. The study aimed to quantify differences in objectively measured physical activity and sedentary behaviour between WEs and SAs recruited from primary care and to investigate differences in demographic and lifestyle correlates of these behaviours. Methodology Baseline data were utilised from a randomised control trial recruiting individuals identified at high risk of type 2 diabetes from primary care. Light intensity physical activity, moderate-vigorous intensity physical activity (MVPA) and steps were measured using the Actigraph GT3X+, while sitting, standing and stepping time were measured using the activPAL3™. Devices were worn concurrently for seven days. Demographic (employment, sex, age, education, postcode) and behavioural (fruit and vegetable consumption, alcohol consumption, smoking status) characteristics were measured via self and interview administered questionnaires. Results A total of 963 WE (age=62±8, female 51%) and 289 SA (age=55±11, female 43%) were included. Compared to WEs, SAs did less MVPA (24 vs 33 min/day, p=0.001) and fewer steps (6404 vs 7405 per day, p≤0.001), but sat less (516 vs 552 min/day, p≤0.001) and stood more (329 vs 284 min/day, p≤0.001). Ethnicity also modified the extent to which demographic and behavioural factors act as correlates of physical activity and sedentary behaviour. Differences between sex in levels of MVPA and sitting time were greater in SAs compared to WEs, with SA women undertaking the least amount of MVPA (20 min/day), the least sitting time (474 min/day) and most standing time (364 min/day) than any other group. Smoking and alcohol status also acted as stronger correlates of sitting time in SAs compared to WEs. In contrast, education level acted as a stronger correlate of physical activity in WEs compared to SAs. Conclusion SAs were less active yet less sedentary than WEs, which demonstrates the need to tailor the behavioural targets of interventions in multi-ethnic communities. Common correlates of physical activity and sedentary behaviour also differed between ethnicities. Trial registration ISRCTN83465245 Trial registration date: 14/06/2012

Item Type: Article
Faculty \ School: Faculty of Medicine and Health Sciences > School of Health Sciences
Depositing User: LivePure Connector
Date Deposited: 16 Jan 2019 10:30
Last Modified: 18 Mar 2020 02:28
URI: https://ueaeprints.uea.ac.uk/id/eprint/69588
DOI: 10.1186/s12889-018-6341-5

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