Day-to-day variability in accelerometer-measured physical activity in mid-aged Australian adults
dc.contributor.author | Brady, R | |
dc.contributor.author | Brown, WJ | |
dc.contributor.author | Mielke, GI | |
dc.date.accessioned | 2023-10-05T08:12:12Z | |
dc.date.issued | 2023-09-28 | |
dc.date.updated | 2023-10-05T05:04:06Z | |
dc.description.abstract | PURPOSE: The aim was to use accelerometer data to describe day-to-day variability in physical activity in a single week, according to sociodemographic variables, in mid-aged Australian adults. METHODS: Data were from participants in the How Areas in Brisbane Influence HealTh and AcTivity (HABITAT) study who took part in a 2014 sub-study (N = 612; Mean age 60.6 [SD 6.9; range 48-73]). Participants wore a triaxial accelerometer (ActiGraph wGT3X-BT) on their non-dominant wrist for seven days, and data were expressed as acceleration in gravitational equivalent units (1 mg = 0.001 g). These were, used to estimate daily acceleration (during waking hours) and daily time spent in moderate-vigorous physical activity (MVPA, defined as ≥ 100mg). Coefficient of variation (calculated as [standard deviation/mean of acceleration and MVPA across the seven measurement days] * 100%) was used to describe day-to-day variability. RESULTS: Average values for both acceleration (24.1-24.8 mg/day) and MVPA (75.9-79.7 mins/day) were consistent across days of the week, suggesting little day-to-day variability (at the group level). However, over seven days, average individual day-to-day variability in acceleration was 18.8% (SD 9.3%; range 3.4-87.7%) and in MVPA was 35.4% (SD 15.6%; range 7.3-124.6%), indicating considerable day-to-day variability in some participants. While blue collar workers had the highest average acceleration (28.6 mg/day) and MVPA (102.5 mins/day), their day-to-day variability was low (18.3% for acceleration and 31.9% for MVPA). In contrast, variability in acceleration was highest in men, those in professional occupations and those with high income; and variability in MVPA was higher in men than in women. CONCLUSION: Results show group-level estimates of average acceleration and MVPA in a single week conceal considerable day-to-day variation in how mid-age Australians accumulate their acceleration and MVPA on a daily basis. Overall, there was no clear relationship between overall volume of activity and variability. Future studies with larger sample sizes and longitudinal data are needed to build on the findings from this study and increase the generalisability of these findings to other population groups. | en_GB |
dc.format.extent | 1880- | |
dc.identifier.citation | Vol. 23, article 1880 | en_GB |
dc.identifier.doi | https://doi.org/10.1186/s12889-023-16734-0 | |
dc.identifier.uri | http://hdl.handle.net/10871/134167 | |
dc.identifier | ORCID: 0000-0003-1861-5575 (Brady, Ruth) | |
dc.language.iso | en | en_GB |
dc.publisher | BMC | en_GB |
dc.relation.url | https://www.ncbi.nlm.nih.gov/pubmed/37770833 | en_GB |
dc.rights | © The Author(s) 2023. Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data. | en_GB |
dc.subject | Accelerometer | en_GB |
dc.subject | Coefficient of variation | en_GB |
dc.subject | Devices | en_GB |
dc.subject | GGIR | en_GB |
dc.subject | Physical activity | en_GB |
dc.subject | Physical activity monitor | en_GB |
dc.subject | Variability | en_GB |
dc.title | Day-to-day variability in accelerometer-measured physical activity in mid-aged Australian adults | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2023-10-05T08:12:12Z | |
exeter.article-number | 1880 | |
exeter.place-of-publication | England | |
dc.description | This is the final version. Available from BMC via the DOI in this record. | en_GB |
dc.description | The datasets generated and/or analysed during the current study are not publicly, but de-identified data are available from the corresponding author on reasonable request. | en_GB |
dc.identifier.eissn | 1471-2458 | |
dc.identifier.journal | BMC Public Health | en_GB |
dc.relation.ispartof | BMC Public Health, 23(1) | |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | en_GB |
dcterms.dateAccepted | 2023-09-11 | |
rioxxterms.version | VoR | en_GB |
rioxxterms.licenseref.startdate | 2023-09-11 | |
rioxxterms.type | Journal Article/Review | en_GB |
refterms.dateFCD | 2023-10-05T08:04:26Z | |
refterms.versionFCD | VoR | |
refterms.dateFOA | 2023-10-05T08:12:14Z | |
refterms.panel | Unspecified | en_GB |
refterms.dateFirstOnline | 2023-09-28 |
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