The mediating role of C-reactive protein and handgrip strength between obesity and walking limitation.

The mediating role of C-reactive protein and handgrip strength between obesity and walking limitation. Research Abstract Details 

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The mediating role of C-reactive protein and handgrip strength between obesity and walking limitation. Abstract Text:

OBJECTIVES: To study the association between different obesity indicators and walking limitation and to examine the role of C-reactive protein (CRP) and handgrip strength in that association. DESIGN: A cross-sectional, population-based study. SETTING: The Health 2000 Survey with a representative sample of the Finnish population. PARTICIPANTS: Subjects aged 55 and older with complete data on body composition, CRP, handgrip strength, and walking limitation (N=2,208). MEASUREMENTS: Body composition, anthropometrics, CRP, medical conditions, handgrip strength, and maximal walking speed were measured in the health examination. Walking limitation was defined as maximal walking speed less than 1.2 m/s or difficulty walking half a kilometer. RESULTS: The two highest quartiles of body fat percentage and CRP and the two lowest quartiles of handgrip strength were all significantly associated with greater risk of walking limitation when chronic diseases and other covariates were taken into account. In addition, high CRP and low handgrip strength partially explained the association between high body fat percentage and walking limitation, but the risk of walking limitation remained significantly greater in persons in the two highest quartiles than in those in the lowest quartile of body fat percentage (odds ratio (OR)=1.75, 95% confidence interval (CI)=1.19-2.57 and OR=2.80, 95% CI 1.89-4.16). The prevalence of walking limitation was much higher in persons who simultaneously had high body fat percentage and low handgrip strength (61%) than in those with a combination of low body fat percentage and high handgrip strength (7%). Using body mass index and waist circumference as indicators of obesity yielded similar results as body fat percentage. CONCLUSION: Low-grade inflammation and muscle strength may partially mediate the association between obesity and walking limitation. Longitudinal studies and intervention trials are needed to verify this pathway.

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The mediating role of C-reactive protein and handgrip strength between obesity and walking limitation. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Journal of the American Geriatrics Society

VOLUME: 56

Page Numbers: 462-9

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ISSN: 1532-5415

DAY: 27

MONTH: 12

YEAR: 2007

The mediating role of C-reactive protein and handgrip strength between obesity and walking limitation. Information

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LANGUAGE: eng

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Grant and Affiliation Information for The mediating role of C-reactive protein and handgrip strength between obesity and walking limitation.

AFFILIATION: Department of Health and Functional Capacity, National Public Health Institute, Turku, Finland. sari.stenholm@ktl.fi

Country: United States

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MEDLINETA: J Am Geriatr Soc

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