Moving through Life-Space Areas and Objectively Measured Physical Activity of Older People

Erja Portegijs, Li-Tang Tsai, Taina Rantanen and Merja Rantakokko

PLOS ONE, 2015, vol. 10, issue 8, 1-12

Abstract: Objectives: Physical activity–an important determinant of health and function in old age–may vary according to the life-space area reached. Our aim was to study how moving through greater life-space areas is associated with greater physical activity of community-dwelling older people. The association between objectively measured physical activity and life-space area reached on different days by the same individual was studied using one-week longitudinal data, to provide insight in causal relationships. Methods: One-week surveillance of objectively assessed physical activity of community-dwelling 70–90-year-old people in central Finland from the “Life-space mobility in old age” cohort substudy (N = 174). In spring 2012, participants wore an accelerometer for 7 days and completed a daily diary including the largest life-space area reached (inside home, outside home, neighborhood, town, and beyond town). The daily step count, and the time in moderate (incl. walking) and low activity and sedentary behavior were assessed. Differences in physical activity between days on which different life-space areas were reached were tested using Generalized Estimation Equation models (within-group comparison). Results: Participants’ mean age was 80.4±4.2 years and 63.5% were female. Participants had higher average step counts (p

Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0135308

DOI: 10.1371/journal.pone.0135308

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