Association Between Weight Status and Executive Function in Young Adults

Medicina

Akbar Moradi¹  LianeB. Azevedo²  Behrouz Heidari³  Samad Esmaeilzadeh³  Malahat Kashfi-Moghadam³  Mohammad Narimani³ 

[1] Islamic Azad University science and research Branch, Tehran 1477893855, Iran;School of Health and Social Care, Teesside University, Middlesbrough TS1 3BA, UK;University of Mohaghegh Ardabili, Department of Psychology, Ardabil 5619911367, Iran;

关键词: fat percentage;    inhibitory control;    obesity;    skeletal muscle mass;    underweight;    working memory;   

DOI  :  10.3390/medicina55070363

来源: DOAJ

【 摘 要 】

Background and objectives: To explore the association between weight status and executive function in young adults. Materials and Methods: Ninety-seven young males (age 17−26 years) underwent adiposity and body composition measurements using body composition analyzer. Inhibitory control and working memory were measured using the Cambridge Neuropsychological Test Battery (CANTAB). Results: Multiple linear regression using both unadjusted and adjusted analyses revealed no association between adiposity and body composition variables with executive tasks, apart from a significant association between skeletal muscle mass (SMM) and mean reaction time on go trial (standardized B = -0.28; p = 0.02). Multivariate analysis of covariance (MANCOVA) revealed that underweight participants presented inferior working memory compared to their normal weight (p = 0.001) or overweight peers (p = 0.008). However, according to the percentage fat quartiles (Q) participants with the highest quartile (Q4) were inferior in inhibitory control than their peers with Q2 (p = 0.04), and participants with the lowest quartile (Q1) were inferior in working memory compared with their peers with Q2 (p = 0.01) or Q3 (p = 0.02). A worse inhibitory control was observed for participants with the highest fat/SMM (Q4) compared to participants in Q3 (p = 0.03), and in contrast worse working memory was observed for participants with the lowest fat/SMM (Q1) compared to participants in Q2 (p = 0.04) or Q3 (p = 0.009). Conclusions: Low adiposity is associated with worse working memory, whereas high adiposity is associated with worse inhibitory control. Therefore, our findings show that normal adiposity, but greater SMM may have a positive impact on executive function in young adults.

【 授权许可】

Unknown