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Obesity history and daily patterns of physical activity at age 60-64 years: findings from the MRC National Survey of Health and Development

Cooper, R; Huang, L; Hardy, R; Crainiceanu, C; Harris, T; Schrack, JA; Crainiceanu, C; (2017) Obesity history and daily patterns of physical activity at age 60-64 years: findings from the MRC National Survey of Health and Development. Journal of Gerontology: Medical Sciences , 72 (10) pp. 1424-1430. 10.1093/gerona/glw331. Green open access

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Abstract

Background: The aim of this study was to investigate associations of current BMI and obesity history with daily patterns of physical activity. / Methods: At age 60-64, participants from a British birth cohort study wore accelerometers for five days. Accelerometry counts were log-transformed and mean log-counts were used to derive a summary variable indicating total daily log-activity counts. Among those with complete data (n=1388) the associations of current BMI and age of first obesity were examined with: a) total daily log-activity counts and; b) total log-activity counts in four segments of the day. / Results: Higher current BMI and younger age at obesity were strongly associated with lower levels of total daily activity at age 60-64 even after adjustment for sex, socioeconomic factors and health status. The fully-adjusted mean difference in total daily log-activity counts was -581.7 (95%CI:-757.2, -406.3) when comparing BMI ≥35kg/m2 with <25kg/m2, representing an 18.4% difference. Participants who had been obese since early adulthood had the lowest levels of activity (mean difference in total daily log-activity counts was -413.1 (-638.1,-188.2) when comparing those who were obese by age 26 or 36 with those who were never obese, representing a 13.1% difference). / Conclusions: Obese older adults may require targeted interventions and additional support to improve their daily activity levels. As younger generations with greater lifetime exposure to obesity reach old age the proportion of adults achieving sufficient levels of activity to realize its associated health benefits is likely to decline.

Type: Article
Title: Obesity history and daily patterns of physical activity at age 60-64 years: findings from the MRC National Survey of Health and Development
Open access status: An open access version is available from UCL Discovery
DOI: 10.1093/gerona/glw331
Publisher version: https://doi.org/10.1093/gerona/glw331
Language: English
Additional information: © The Author 2017. Published by Oxford University Press on behalf of The Gerontological Society of America. 1 Journals of Gerontology: Medical Sciences cite as: J Gerontol A Biol Sci Med Sci, 2017, Vol. 00, No. 00, 1–7 doi:10.1093/gerona/glw331 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.
Keywords: BMI; daily patterns of activity; aging; birth cohort; life course
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Education
UCL > Provost and Vice Provost Offices > School of Education > UCL Institute of Education
UCL > Provost and Vice Provost Offices > School of Education > UCL Institute of Education > IOE - Social Research Institute
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute of Cardiovascular Science
URI: https://discovery.ucl.ac.uk/id/eprint/1532862
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