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Physical performance and serum 25(OH)vitamin D status in community dwelling old mobility limited adults: A cross-sectional study
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Public Health and Caring Sciences, Clinical Nutrition and Metabolism.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Public Health and Caring Sciences, Clinical Nutrition and Metabolism.ORCID iD: 0000-0003-3705-0725
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2016 (English)In: The Journal of Nutrition, Health & Aging, ISSN 1279-7707, E-ISSN 1760-4788, 1-7 p.Article in journal (Refereed) Epub ahead of print
Abstract [en]

Objectives: To examine the potential association between serum 25(OH) vitamin D and theperformance on the Short Physical Performance Battery (SPPB) including the sub-components; five repeatedchair stands test, 4 meters walk test and balance in older mobility-limited community-dwelling men and women.

Design: A cross sectional study was performed in American and Swedish subjects who were examined forpotential participation in a combined exercise and nutrition intervention trial. Logistic regression analysis andlinear regression analyses were performed to evaluate the association for 25(OH)D with the overall score onthe SBBP, chair stand, gait speed and balance.

Participants: Community-dwelling (mean age 77.6 ± 5.3 years)mobility limited American (n=494) and Swedish (n=116) females (59%) and males.

Measurements: The SPPB(0-12 points) includes chair stand (s), gait speed (m/s) and a balance test. Mobility limitation i.e., SPPB score ≤9 was an inclusion criterion. A blood sample was obtained to measure serum 25(OH)vitamin D concentrations.

Results: No clear association of 25(OH)D with SPPB scores was detected either when 25(OH)D was assessedas a continuous variable or when categorized according to serum concentrations of <50, 50-75 or <75 nmol/L.However, when analyzing the relationship between 25(OH)D and seconds to perform the chair stands, asignificant quadratic relationship was observed. Thus, at serum levels of 25(OH)D above 74 nmol/L, higherconcentrations appeared to be advantageous for the chair stand test, whereas for serum levels below 74 nmol/Lthis association was not observed.

Conclusion: This cross- sectional study lacked clear association betweenserum 25(OH)D and physical performance in mobility limited adults. A potentially interesting observation wasthat at higher serum levels of 25(OH)D a better performance on the chair stand test was indicated.

Place, publisher, year, edition, pages
2016. 1-7 p.
Keyword [en]
older adults, physical function, serum 25(OH)D, community- dwelling, SPPB
National Category
Nutrition and Dietetics
Research subject
Nutrition
Identifiers
URN: urn:nbn:se:uu:diva-317333DOI: 10.1007/s12603-016-0849-0OAI: oai:DiVA.org:uu-317333DiVA: diva2:1081319
Available from: 2017-03-13 Created: 2017-03-13 Last updated: 2017-03-13Bibliographically approved

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von Berens, ÅsaCederholm, TommyNydahl, MargarethaKoochek, Afsaneh
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Clinical Nutrition and MetabolismDepartment of Food, Nutrition and Dietetics
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