Does the diurnal cycle of cortisol explain the relationship between physical performance and cognitive function in older adults?

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Título: Does the diurnal cycle of cortisol explain the relationship between physical performance and cognitive function in older adults?
Autor/es: Dijckmans, B. | Tortosa Martínez, Juan | Caus i Pertegaz, Núria | González-Caballero, Gloria | Martínez-Pelegrin, B. | Manchado, Carmen | Cortell-Tormo, Juan M. | Chulvi Medrano, Iván | Clow, Angela
Grupo/s de investigación o GITE: Research in Physical Education, Fitness and Performance (RIPEFAP) | Grupo de Investigación en Alimentación y Nutrición (ALINUT)
Centro, Departamento o Servicio: Universidad de Alicante. Departamento de Didáctica General y Didácticas Específicas
Palabras clave: Aging | Mild cognitive impairment | Dementia | Cognitive function | Physical activity | Cortisol | Chronic stress | HPA axis
Área/s de conocimiento: Educación Física y Deportiva
Fecha de publicación: 15-may-2017
Editor: BioMed Central
Cita bibliográfica: European Review of Aging and Physical Activity. 2017, 14:6. doi:10.1186/s11556-017-0175-5
Resumen: Background: Regular physical activity is a promising strategy to treat and prevent cognitive decline. The mechanisms that mediate these benefits are not fully clear but physical activity is thought to attenuate the harmful effects of chronic psychological stress and hypercortisolism on cognition. However, the circadian pattern of cortisol secretion is complex and it is not known which aspects are most closely associated with increased cognitive function and better physical performance. This is the first study to simultaneously measure cognitive function, the diurnal cycle of salivary cortisol and physical performance in older adults, without cognitive impairment (n = 30) and with amnestic Mild Cognitive Impairment (aMCI) (n = 30). Results: Regression analysis showed that better cognitive function was associated with better physical performance. A greater variance in cortisol levels across the day from morning to evening was associated with better cognitive function and physical performance. Conclusions: The results support the idea that a more dynamic cortisol secretion pattern is associated with better cognitive function and physical performance even in the presence of cognitive impairment, but our results could not confirm a mediating role in this relationship.
Patrocinador/es: This work was supported by the University of Alicante [GRE11-26].
URI: http://hdl.handle.net/10045/66127
ISSN: 1813-7253 (Print) | 1861-6909 (Online)
DOI: 10.1186/s11556-017-0175-5
Idioma: eng
Tipo: info:eu-repo/semantics/article
Derechos: © The Author(s). 2017 Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
Revisión científica: si
Versión del editor: http://dx.doi.org/10.1186/s11556-017-0175-5
Aparece en las colecciones:INV - ALINUT - Artículos de Revistas
INV - RIPEFAP - Artículos de Revistas

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