Cherednichenko Anastasia, Miró-Padilla Anna, Adrián-Ventura Jesús, Monzonís-Carda Irene, Beltran-Valls Maria Reyes, Moliner-Urdiales Diego, Ávila César
Neuropsychology and Functional Neuroimaging Group, Department of Basic Psychology, Clinical Psychology and Psychobiology, Universitat Jaume I, Castelló de la Plana, Spain.
Neonatal Research Group, Health Research Institute La Fe, Avenida Fernando Abril Martorell 106, Valencia, 46026, Spain.
Brain Imaging Behav. 2024 Dec;18(6):1333-1342. doi: 10.1007/s11682-024-00916-4. Epub 2024 Sep 9.
Evidence from previous studies suggests that physical activity (PA) may contribute to functional and structural changes in the hippocampus throughout the lifespan. However, there is limited evidence available regarding the young adult population. Additionally, the personality traits that may influence this association remain unclear. With a sample of 84 young adults (43 women; age 22.7 ± 2.8y; range 18-29), the main aim of the current study was to analyze the association between objective and self-reported measures of daily PA and hippocampus subfield gray matter volumes, and to examine the role of the personality trait of punishment sensitivity in this association. Our results showed that only moderate to vigorous levels of objectively measured PA were positively associated with the hippocampal CA2/CA3 volume. Moreover, punishment sensitivity correlated negatively with the objective measure of sedentarism and with self-reported measures of PA. However, regression analyses did not find any interaction between punishment sensitivity and PA in explaining individual differences in hippocampal volumes. Thus, our data suggest that intense PA may contribute to enhancing the hippocampal CA2/CA3 volume in young adults.
以往研究的证据表明，体育活动（PA）可能在整个生命周期中促进海马体的功能和结构变化。然而，关于年轻成年人群体的证据有限。此外，可能影响这种关联的人格特质仍不明确。本研究以84名年轻成年人（43名女性；年龄22.7±2.8岁；范围18 - 29岁）为样本，主要目的是分析日常PA的客观测量指标与自我报告指标和海马体亚区灰质体积之间的关联，并检验惩罚敏感性这一人格特质在该关联中的作用。我们的结果表明，只有客观测量的中度至剧烈水平的PA与海马体CA2/CA3体积呈正相关。此外，惩罚敏感性与久坐行为的客观测量指标以及PA的自我报告指标呈负相关。然而，回归分析未发现惩罚敏感性与PA之间在解释海马体体积个体差异方面存在任何相互作用。因此，我们的数据表明，高强度PA可能有助于增加年轻成年人的海马体CA2/CA3体积。
