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Title: Association between both total baseline urinary and dietary polyphenols and substantial physical performance decline risk in older adults: A 9-year follow-up of the InCHIANTI study
Author: Rabassa Bonet, Montserrat
Zamora-Ros, Raul
Andrés Lacueva, Ma. Cristina
Urpí Sardà, Mireia
Bandinelli, Stefania
Ferrucci, Luigi
Cherubini, Antonio
Keywords: Marcadors bioquímics
Biochemical markers
Issue Date: 10-Oct-2015
Publisher: Springer Science + Business Media
Abstract: Importance: The decline in physical performance that occurs in many older subjects is a strong predictor of falls, hospitalization, institutionalization and mortality. Polyphenols are bioactive compounds that may play a preventive role against physical performance decline due to their antioxidant and anti-inflammatory properties. Objective: To investigate the association between total urinary polyphenols (TUP) and total dietary polyphenols (TDP) and substantial physical performance decline over a nine-year period among older subjects. Methods: This longitudinal study included 368 participants aged 65 years or older from the InCHIANTI (Invecchiare in Chianti) study, an Italian population-based cohort. TUP and TDP concentrations were assessed at baseline using the Folin-Ciocalteau (F-C) assay and a validated food frequency questionnaire, respectively. Physical performance was objectively measured at baseline and at nine-year follow-up using the Short Physical Performance Battery (SPPB). A substantial decline in physical performance was considered as a decrease of three or more points in the SPPB score. Results: At the nine-year follow-up assessment, 71 participants had suffered a substantial decline in physical performance. In the fully adjusted logistic regression model, participants in the highest TUP tertile had a lower risk of substantial decline in physical performance than those in the lowest tertile (OR, 0.40; 95% CI, 0.17<br>0.93; P trend=0.033). However, no significant association between TDP intake and physical performance decline was observed. Conclusion: This study shows that high TUP concentrations, a biomarker of polyphenol-rich exposure, were associated with lower risk of substantial decline in physical performance in community-dwelling older subjects over a nine-year period. These results suggest that a polyphenol-rich diet may play a role in protecting against physical performance decline in older people.
Note: Versió postprint del document publicat a:
It is part of: Journal of Nutrition, Health & Aging, 2015
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ISSN: 1279-7707
Appears in Collections:Articles publicats en revistes (Nutrició, Ciències de l'Alimentació i Gastronomia)

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