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dc.contributor.authorOG, Geirsdottir
dc.contributor.authorM, Chang
dc.contributor.authorPv, Jonsson
dc.contributor.authorI, Thorsdottir
dc.contributor.authorA, Ramel
dc.date.accessioned2020-10-01T13:58:38Z
dc.date.available2020-10-01T13:58:38Z
dc.date.issued2020-07-12
dc.date.submitted2020-10
dc.identifier.citationOg G, M C, Pv J, I T, A R. Associations of physical activity with vitamin D status depends on obesity status in old adults. Clin Nutr ESPEN. 2020 Oct;39:222-226. doi: 10.1016/j.clnesp.2020.06.009. Epub 2020 Jul 12. PMID: 32859321.en_US
dc.identifier.pmid32859321
dc.identifier.doi10.1016/j.clnesp.2020.06.009
dc.identifier.urihttp://hdl.handle.net/2336/621541
dc.descriptionTo access publisher's full text version of this article click on the hyperlink belowen_US
dc.description.abstractPurpose: Obesity has been associated with low 25-hydroxy-vitamin D (25OHD). The causes of hypovitaminosis D in obese individuals are not known. The present work aimed to investigate 25OHD in obese and normal-/overweight subjects with consideration of leisure-time physical activity (LTPA). Methods: Community-dwelling old adults (N = 229, 73.7 ± 5.7yrs, 58.2% female) from the Reykjavik capital area in Iceland participated in this cross-sectional study. LTPA, vitamin D intake, body composition and background variables were assessed. 25OHD was measured in fasting blood samples. Results: Mean LTPA was 5.7 ± 5.6 h/week and the common activities were walking and gardening. Mean 25OHD was 66.7 ± 28.1 nmol/L and 8.5/21.2% were below 30 and 50 nmol/L, respectively. Obese participants (n = 84) had lower 25OHD (-11.0 ± 3.8 nmol/L,P < 0.001) and lower LTPA (-2.5 + 0.8 h/week,P = 0.001) than normal-/overweight subjects (n = 145). Linear models showed that LTPA (h/week) was associated with higher 25OHD in normal-/overweight participants only (1.3 nmol/L, P < 0.001) but not in obese (-0.7 nmol, P = 0.245). Fish oil intake was associated with higher 25OHD both in normal-/overweight (19.2 ± 4.5 nmol/L, P = 0.001) and obese subjects (13.4 ± 5.3 nmol/L, P = 0.013). Conclusions: Obese community-dwelling old adults in Iceland have lower 25OHD than their normal-/overweight counterparts. LTPA was associated with a higher 25OHD in normal-/overweight, but not in obese participants. However, fish oil was associated with higher 25OHD independently from obesity status. Thus, vitamin D supplementation is important for obese old adults to maintain vitamin D levels. Keywords: Aging; Fish oil; Leisure-time physical activity; Obesity; Vitamin D.en_US
dc.description.sponsorshipIcelandic Technology Development Fund Istanbul University Landspitali University Hospital Research Fund Helga Jonsdottir and Sigurlidi Kristjansson Geriatric Research Funden_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.urlhttps://www.sciencedirect.com/science/article/pii/S2405457720301248en_US
dc.rightsCopyright © 2020. Published by Elsevier Ltd.
dc.subjectAgingen_US
dc.subjectFish oilen_US
dc.subjectLeisure-time physical activityen_US
dc.subjectObesityen_US
dc.subjectVitamin Den_US
dc.subjectAldraðiren_US
dc.subjectOffitaen_US
dc.subjectLýsien_US
dc.subjectD vítamínen_US
dc.subjectHreyfing (heilsurækt)en_US
dc.subject.meshFish Oilsen_US
dc.titleAssociations of physical activity with vitamin D status depends on obesity status in old adults.en_US
dc.typeArticleen_US
dc.identifier.eissn2405-4577
dc.contributor.department1The Icelandic Gerontological Research Center, Reykjavik, Iceland; Faculty of Food Science and Nutrition, University of Iceland, Reykjavik, Iceland. 2The Icelandic Gerontological Research Center, Reykjavik, Iceland; Sport Science, School of Science and Engineering, Reykjavik University, Reykjavik, Iceland. 3The Icelandic Gerontological Research Center, Reykjavik, Iceland; Department of Geriatrics, National University Hospital of Iceland, Reykjavik, Iceland. 4School of Health Sciences, University of Iceland, Reykjavik, Iceland. 5The Icelandic Gerontological Research Center, Reykjavik, Iceland; Faculty of Food Science and Nutrition, University of Iceland, Reykjavik, Iceland. Electronic address: alfonsra@hi.is.en_US
dc.identifier.journalClinical nutrition ESPENen_US
dc.rights.accessNational Consortium - Landsaðganguren_US
dc.departmentcodeGER12
dc.source.journaltitleClinical nutrition ESPEN
dc.source.volume39
dc.source.beginpage222
dc.source.endpage226
dc.source.countryEngland


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