C-20 Cardiorespiratory Fitness Predicts Processing Speed Performance in Urban Latin Americans
póster de congreso
Fecha
2019-07-29Autor
Alioto, Anthony
Conde, Karina
Salazar Villanea, Mónica
Moncada Jiménez, José
Cahn-Weiner, Deborah
Johnson, David K.
Metadatos
Mostrar el registro completo del ítemResumen
Objective
There is evidence that cardiorespiratory fitness (CRF) protects against age-related declines in processing speed (PS), but studies investigating older adults living in low and middle-income countries are lacking. We used data from the Epidemiology and Development of Alzheimer’s Disease (EDAD) study to investigate the role of CRF on PS in older Costa Rican adults.
Method
306 community dwelling older adults (mean age = 69) were recruited for a study on cognition and physical fitness. We used a regression model to test the association between CRF and a composite measure of PS (Digit Symbol, Trails A, Block Design, and Stroop Color Naming). Confirmatory factor analysis (CFA) with full information maximum likelihood was conducted in a nested multi-step process on subtest scores. We also compared the strength of the relationship between two measures of CRF: Maximal oxygen uptake (V02 peak) and a latent variable comprised of distance achieved during the 6-minute Walk Test and change in heart rate before and after walking (Modified 6-Minute Walk).
Results
Higher CRF was significantly associated with PS, and the association remained significant after controlling for age and sex (B = 0.21; p < .001). The strength of the relationship between two measures of CRF was very high, suggesting equivalence of these indices.
Conclusions
CRF and PS are clinically meaningful therapeutic targets for future prevention trials in Latin America. The modified 6-Minute Walk is an efficient approximation of the gold standard CRF measurement. The cognitive benefits of CRF should be compared to other lifestyle interventions (e.g., diet) to determine the active components of cognitive improvement.
External link to the item
10.1093/arclin/acz034.182
Asociado a Proyecto 723-B3-339 (FUNDEVI # 2791-01). Edad, Fase 1: envejecimiento saludable en zonas urbanas y rurales. (EDAD, Phase 1: Healthy Aging in Urban and Rural Areas. EDAD "The Epidemiology and Development of Alzheimer´s Disease)". NIH –Fogarty Grant Number: 1R21TW009665 – 01. Fogarty International Center (FIC), National Institute of Health (NIH). Universidad de Kansas-Universidad de Costa Rica
Colecciones
- Psicología [597]