Vitamin D status and physical function in nursing home residents: a 1-year observational study

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Details zur Publikation

Autorinnen und Autoren: Diekmann R, Winning K, Bauer J, Uter W, Stehle P, Lesser S, Bertsch T, Sieber C, Volkert D
Zeitschrift: Zeitschrift für Gerontologie und Geriatrie
Jahr der Veröffentlichung: 2013
Band: 46
Heftnummer: 5
Seitenbereich: 403-409
ISSN: 0948-6704


Low vitamin D blood levels are highly prevalent in elderly people, particularly in nursing home residents (NHR). A relation between vitamin D levels and physical function (PF) is described in several studies in older adults; however, data on NHR are scarce and there is presently no information on the time course of vitamin D levels and PF in this population. The aim of the present study was to describe the 25-hydroxyvitamin D [25(OH)D] status of NHR at baseline (t(1)) and after 1 year (t(2)) to examine whether 25(OH)D blood levels are related to PF at t(1) and at t(2), and whether changes in 25(OH)D levels over 1 year are related to changes in PF.All NHR (a parts per thousand yenaEuro parts per thousand 65 years) without tube-feeding and severe acute or end-stage disease were asked to participate. At t(1) and t(2) fasting blood samples were taken for the analysis of 25(OH)D serum levels and PF was estimated by activities of daily living (Barthel ADL) and measured by handgrip strength (HGS) and timed 'up and go' test (TUG).In total, 115 residents, aged 87 (82-93) years (all data in median and 1st-3rd quartile), showed the following values for PF: ADL 50 (20-65) points, HGS 40 (30-50) kPa and TUG 26 (18-31) s. Vitamin D deficiency (< 50 nmol/l) was present in 93.9 % (70.4 % < 25 nmol/l) at t(1) and in 71.2 % (57.3 % < 25 nmol/l) at t(2). At t(1) and at t(2) a weak correlation between vitamin D level and PF (Spearman's correlation coefficient t(1): ADL r = 0.367, HGS r = 0.313; t(2): ADL: r = 0.247; all p < 0.01) was observed. There was no correlation between changes in vitamin D levels over 1 year and changes in PF.Almost all NHR included in the study showed vitamin D deficiency. 25(OH)D levels were weakly correlated to PF at baseline and at follow-up, and an increase in vitamin D levels was not associated with positive effects on PF in this study.

FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Bauer, Jürgen PD Dr.
Lehrstuhl für Psychogerontologie
Diekmann, Rebecca
Lehrstuhl für Innere Medizin (Geriatrie)
Sieber, Cornel Prof. Dr.
Lehrstuhl für Innere Medizin (Geriatrie)
Uter, Wolfgang Prof. Dr.
Professur für Epidemiologie
Volkert, Dorothee Prof. Dr. rer. nat.
Professur für Klinische Ernährung im Alter

Einrichtungen weiterer Autorinnen und Autoren

Klinikum Nürnberg
Rheinische Friedrich-Wilhelms-Universität Bonn


Diekmann, R., Winning, K., Bauer, J., Uter, W., Stehle, P., Lesser, S.,... Volkert, D. (2013). Vitamin D status and physical function in nursing home residents: a 1-year observational study. Zeitschrift für Gerontologie und Geriatrie, 46(5), 403-409.

Diekmann, Rebecca, et al. "Vitamin D status and physical function in nursing home residents: a 1-year observational study." Zeitschrift für Gerontologie und Geriatrie 46.5 (2013): 403-409.


Zuletzt aktualisiert 2018-22-10 um 09:23