Vincent C M, Hall P A
Department of Medicine University of Toronto Toronto Canada.
School of Public Health and Health Systems University of Waterloo Waterloo Canada.
Obes Sci Pract. 2017 Jun 8;3(3):289-297. doi: 10.1002/osp4.112. eCollection 2017 Sep.
Several studies document reliable brain health benefits of acute exercise bouts. However, no prior studies have explored such effects among those living with co-morbid overweight/obesity and type 2 diabetes (T2DM), both of which are conditions associated with cognitive performance decrements.
To examine the impact of a 30-min bout of moderate-intensity aerobic exercise on executive function among adults with overweight/obesity and T2DM, employing a widely used experimental paradigm.
Thirty adults with overweight/obesity and T2DM were randomly assigned to moderate (30% maximal heart rate reserve) and minimal (r.p.m. 30-50; work load 5) intensity aerobic exercise. Pre-exercise to post-exercise changes in Stroop interference and Go/No-Go scores were compared across conditions.
Primary analyses revealed no overall effect of exercise condition on changes in Stroop or Go/No-Go performance. Post-hoc moderation analyses indicated that Stroop interference scores were reduced, following moderate exercise among female participants and among those who were more physically active.
The current study revealed no reliable benefit of acute aerobic exercise for overweight and obese individuals living with T2DM overall. There may be limited benefits for women and more and active subgroups, but the precise nature of such benefits remains unclear.
多项研究证明了急性运动对大脑健康有可靠的益处。然而，此前尚无研究探讨过合并超重/肥胖和2型糖尿病（T2DM）的人群中的此类影响，这两种情况均与认知能力下降有关。
采用一种广泛使用的实验范式，研究30分钟中等强度有氧运动对超重/肥胖且患有T2DM的成年人执行功能的影响。
30名超重/肥胖且患有T2DM的成年人被随机分配到中等强度（最大心率储备的30%）和最低强度（每分钟转速30 - 50；工作量5）的有氧运动组。比较不同条件下运动前到运动后在Stroop干扰任务和停止信号任务分数上的变化。
初步分析显示，运动条件对Stroop任务或停止信号任务的表现变化没有总体影响。事后调节分析表明，在女性参与者以及身体活动较多的参与者中，进行中等强度运动后，Stroop干扰分数降低。
当前研究表明，急性有氧运动对总体上患有T2DM的超重和肥胖个体没有可靠的益处。对女性以及身体活动较多的亚组可能有有限的益处，但此类益处的确切性质仍不清楚。
