Association Between 24-Hour Movement Behavior and Cognitive Function in Brazilian Middle-Aged and Older Adults: Findings From the ELSA-Brasil

Abstract

Background and Objectives The relationship between the 24-hour movement behavior and specific domains of cognitive function is unclear. The purpose of this study was to identify the joint association of daily time spent in light (LPA) and moderate-to-vigorous physical activity (MVPA), sedentary behavior (SB), and sleep with cognitive function in middle-aged and older adults. Research Design and Methods Cross-sectional data from wave 3 (2017-2019) of the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil) were analyzed. The study included adults aged 41-84 years old. Physical activity was assessed using a waist-worn accelerometer. Cognitive function was examined using standardized tests to assess memory, language, and trail-making test. Global cognitive function score was calculated averaging domain-specific scores. Compositional isotemporal substitution models were performed to identify the association between the reallocation of time spent in LPA, MVPA, sleep, and SB with cognitive function. Results Participants (n=8,608) were 55.9% female (mean age 58.9 [8.6] years). Reallocating time from SB to MVPA was associated with higher cognitive function: reallocating 15 minutes to MVPA by reducing 5 minutes from each other behavior was associated with increased odds of better cognitive function in both insufficient (<7 hours/day) (OR: 0.64; 95%CI: 0.54-0.77) and sufficient (≥7 hours/day) (OR: 0.62; 95%CI: 0.58-0.67) sleep groups. Among those with insufficient sleep, reallocating time to MVPA and sleep from SB was associated with higher global cognitive performance. Discussion and Implications Small reductions in SB and increments in MVPA were associated with higher cognitive function in middle-aged and older adults.

Associação entre Problemas de Memória, Atividade Física e Saúde Mental em Servidores Públicos

“…Esse achado reforça a importância desse comportamento para a qualidade de memória, e estudos recentes têm destacado este fato. Neste sentido, Feter et al (2023) apontam, por exemplo, que a realocação de cinco minutos de comportamento sedentário para a prática de atividade física, de moderada a vigorosa intensidade, diminui em 13% a chance de comprometimento cognitivo em trabalhadores de universidades e instituições de pesquisa brasileiras (Feter et al, 2023). Em estudo de base populacional conduzido com essa mesma população, os autores evidenciaram que a fração de risco atribuível da inatividade física para a demência, causada pelo agravamento dos problemas de memória, é de 11,2% (Borelli et al, 2022).…”