Inverse Effects of Midlife Occupational and Leisure Time Physical Activity on Mobility Limitation in Old Age—A 28‐Year Prospective Follow‐Up Study. Issue 5 (14th April 2014)

• Record Type: Journal Article
• Authors: Hinrichs, Timo; von Bonsdorff, Mikaela B.; Törmäkangas, Timo; von Bonsdorff, Monika E.; Kulmala, Jenni; Seitsamo, Jorma; Nygård, Clas‐Håkan; Ilmarinen, Juhani; Rantanen, Taina
• Is Part Of: Journal of the American Geriatrics Society. Volume 62:Issue 5(2014:May)
• Page Start: 812
• Page End: 820
• Publication Date: 2014-04-14
• Subjects: Geriatrics -- Periodicals; 618.97
• DOI: 10.1111/jgs.12793
• Languages: English
• ISSNs: 0002-8614

Abstract

<abstract abstract-type="main" id="jgs12793-abs-0001"> <title> <x xml:space="preserve">Abstract</x> </title> <sec id="jgs12793-sec-0001" sec-type="section"> <title>Objectives</title> <p>To evaluate in a sample of initially middle‐aged municipal employees whether leisure time (LPA) or occupational physical activity (OPA) was associated with mobility limitation (ML) in old age.</p> </sec> <sec id="jgs12793-sec-0002" sec-type="section"> <title>Design</title> <p>Prospective population‐based follow‐up.</p> </sec> <sec id="jgs12793-sec-0003" sec-type="section"> <title>Setting</title> <p>Municipalities in Finland.</p> </sec> <sec id="jgs12793-sec-0004" sec-type="section"> <title>Participants</title> <p>Public sector employees from the Finnish Longitudinal Study on Municipal Employees (FLAME) initially aged 44 to 58 (N = 5, 200).</p> </sec> <sec id="jgs12793-sec-0005" sec-type="section"> <title>Measurements</title> <p>Baseline data were collected in 1981, including LPA (average exercise within previous year: inactive (no exercise), moderate (some form of exercise ≤1 time per week), vigorous (brisk exercise ≥1 time per week)) and OPA (usual activities at work within previous year: light (light work sitting, standing, or moving around), moderate (moderate work moving around), vigorous (heavy physical work)). Number of MLs was assessed using a questionnaire (8 items) in 1985, 1992, 1997, and 2009; the latest mobility score available for each subject was used for analyses. Incidence rate ratios (IRRs) and 95% confidence intervals (CIs) for LPA and OPA predicting ML were estimated in a joint Poisson regression model adjusted for survival data; the other type of PA; and sociodemographic, socioeconomic, and health‐related factors.</p> </sec> <sec id="jgs12793-sec-0006" sec-type="section"> <title>Results</title> <p>Mean age at baseline was 50.3 ± 3.6; 56.9% of participants were female. Participants with vigorous OPA in midlife had greater risk of a unit increase in ML in old age than those with light OPA (fully adjusted IRR = 1.09, 95% CI = 1.03–1.16). Participants with vigorous LPA had lower risk of ML than inactive participants (fully adjusted IRR = 0.81, 95% CI = 0.76–0.86).</p> </sec> <sec id="jgs12793-sec-0007" sec-type="section"> <title>Conclusion</title> <p>Findings suggest that LPA and OPA in midlife have independent, inverse effects on mobility in old age in terms of a harmful effect of vigorous OPA and a protective effect of vigorous LPA.</p> </sec> </abstract>