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Grootswagers, Pol, Mensink, Marco, Berendsen, Agnes A. M., Deen, Carolien P. J., Kema, Ido P., Bakker, Stephan J. L., Santoro, Aurelia, Franceschi, Claudio, Meunier, Nathalie, Malpuech-Brugère, Corinne, Bialecka-Debek, Agata, Rolf, Katarzyna, Fairweather-Tait, Susan 
ORCID: https://orcid.org/0000-0002-1413-5569, Jennings, Amy, Feskens, Edith J. M. and De groot, Lisette C. P. G. M.
(2021)
Vitamin B-6 intake is related to physical performance in European older adults: results of the New Dietary Strategies Addressing the Specific Needs of the Elderly Population for Healthy Aging in Europe (NU-AGE) study.
The American Journal of Clinical Nutrition, 113 (4).
781–789.
ISSN 0002-9165
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Abstract
BACKGROUND: Maintenance of high physical performance during aging might be supported by an adequate dietary intake of niacin, vitamins B-6 and B-12, and folate because these B vitamins are involved in multiple processes related to muscle functioning. However, not much is known about the association between dietary intake of these B vitamins and physical performance. OBJECTIVES: The objectives of this study were to investigate the association between dietary intake of niacin, vitamins B-6 and B-12, and folate and physical performance in older adults and to explore mediation by niacin status and homocysteine concentrations. METHODS: We used baseline data from the New Dietary Strategies Addressing the Specific Needs of the Elderly Population for Healthy Aging in Europe (NU-AGE) trial, which included n = 1249 healthy older adults (aged 65-79 y) with complete data on dietary intake measured with 7-d food records and questionnaires on vitamin supplement use and physical performance measured with the short physical performance battery and handgrip dynamometry. Associations were assessed by adjusted linear mixed models. RESULTS: Intake of vitamin B-6 was related to lower chair rise test time [β: -0.033 ± 0.016 s (log); P = 0.043]. Vitamin B-6 intake was also significantly associated with handgrip strength, but for this association, a significant interaction effect between vitamin B-6 intake and physical activity level was found. In participants with the lowest level of physical activity, higher intake of vitamin B-6 tended to be associated with greater handgrip strength (β: 1.5 ± 0.8 kg; P = 0.051), whereas in participants in the highest quartile of physical activity, higher intake was associated with lower handgrip strength (β: -1.4 ± 0.7 kg; P = 0.041). No evidence was found for an association between intake of niacin, vitamin B-12, or folate and physical performance or for mediation by niacin status or homocysteine concentrations. CONCLUSIONS: Vitamin B-6 intake was associated with better chair rise test time in a population of European healthy older adults and also with greater handgrip strength in participants with low physical activity only. Homocysteine concentrations did not mediate these associations. The NU-AGE trial was registered at clinicaltrials.gov as NCT01754012.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | folate,homocysteine,muscle,niacin,physical function,vitamin b-12,vitamin b-6,medicine (miscellaneous),nutrition and dietetics ,/dk/atira/pure/subjectarea/asjc/2700/2701 |
| Faculty \ School: | Faculty of Medicine and Health Sciences > Norwich Medical School |
| UEA Research Groups: | Faculty of Medicine and Health Sciences > Research Groups > Nutrition and Preventive Medicine Faculty of Medicine and Health Sciences > Research Centres > Lifespan Health |
| Related URLs: | |
| Depositing User: | LivePure Connector |
| Date Deposited: | 03 Feb 2021 00:59 |
| Last Modified: | 19 Oct 2023 02:54 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/79147 |
| DOI: | 10.1093/ajcn/nqaa368 |
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