Department of Physical Education, Shanghai Jiao Tong University, Shanghai, China.
Department of Physical Education, Shanghai Jiao Tong University, Shanghai, China; School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China.
Acta Psychol (Amst). 2024 Oct;250:104506. doi: 10.1016/j.actpsy.2024.104506. Epub 2024 Sep 30.
Obesity has become a prominent public health concern worldwide and is associated with adverse cognitive function. Exercise, particularly aerobic exercise, is known to benefit for weight loss and cognitive function. However, whether acute aerobic exercise could yield benefits to obese individuals and the precise brain mechanisms of action remain poorly understood. The study aimed to investigate whether acute aerobic exercise could improve inhibitory control among obese individuals and what neuroelectric mechanisms are implicated. A 3 (session: control, low-intensity exercise, moderate-intensity exercise) × 2 (congruency: congruent, incongruent) within-subject design was conducted. 18 obese young male adults underwent three sessions of 30-min interventions in a counterbalanced order seperated by five days: moderate-intensity aerobic exercise (MIE), low-intensity aerobic exercise (LIE) and a control session (a sedentary period of seated rest). The Flanker task and EEG recordings (N2 and P3 amplitude) were investigated following exercise and the control treatment. Results showed that the N2 amplitude following MIE was larger than the control session, whereas a larger N2 and reduced congruent P3 amplitude was observed following MIE than LIE. However, no main effect of the session was found for reaction time and accuracy, but a significant main effect of congruency was observed. These findings suggest acute moderate-intensity aerobic exercise may modulate brain activity through enhanced recruitment of attentional resources for cognitive control and conflict monitoring in adults with obesity.
肥胖已成为全球突出的公共卫生问题，与不良认知功能有关。运动，特别是有氧运动，已知可有益于减肥和认知功能。然而，急性有氧运动是否能使肥胖者受益，以及确切的大脑作用机制仍知之甚少。本研究旨在探讨急性有氧运动是否能改善肥胖个体的抑制控制能力，以及涉及哪些神经电机制。采用 3（session：对照、低强度运动、中强度运动）×2（congruency：一致、不一致）的被试内设计。18 名肥胖年轻男性参与者按照平衡顺序进行了三次 30 分钟的干预，每次干预之间间隔 5 天：中强度有氧运动（MIE）、低强度有氧运动（LIE）和对照（静坐休息）。在运动和对照治疗后，对 Flanker 任务和 EEG 记录（N2 和 P3 振幅）进行了调查。结果表明，MIE 后的 N2 振幅大于对照，而 MIE 后 N2 较大，一致 P3 振幅降低。然而，反应时和准确性没有显示出会话的主要影响，但一致性有显著的主要影响。这些发现表明，急性中等强度有氧运动可能通过增强注意力资源的募集来调节大脑活动，从而提高肥胖成年人的认知控制和冲突监测能力。
