Graduate School of Sport Sciences, Waseda University, 2-579-15 Mikajima, Tokorozawa, Saitama, 359-1192, Japan.
Organization for the Strategic Coordination of Research and Intellectual Properties, Meiji University, Jinbocho, Chiyoda-Ku, Tokyo, 101-8301, Japan.
Sci Rep. 2024 Jul 6;14(1):15587. doi: 10.1038/s41598-024-66598-6.
Identifying the types of exercise that enhance cerebral blood flow is crucial for developing exercise programs that enhance cognitive function. Nevertheless, few studies have explored the amount of light-intensity, short-duration exercises that individuals can easily perform on cerebral blood flow, particularly in children. We examined the effects of these exercises on the hemodynamics of the prefrontal cortex (PFC) using functional near-infrared spectroscopy. Participants comprised 41 children (aged 12.1 ± 1.5 years, 37% female) who engaged in seven light-intensity exercises, with each movement performed in two patterns lasting 10 or 20 s. Changes in oxygenated hemoglobin (oxy-Hb) levels at rest and during exercise were compared using analysis of covariance, with sex and age as covariates. Significant increases in oxy-Hb were observed in multiple regions of the PFC during all forms of exercise (including dynamic and twist stretching [66.6%, 8/12 regions, η = 0.07-0.27], hand and finger movements [75.0%, 9/12 regions, η = 0.07-0.16], and balance exercises (100.0%, 6/6 regions, η = 0.13-0.25]), except for static stretching with monotonic movements. This study implies that short-duration, light-intensity exercises, provided that they entail a certain degree of cognitive and/or physical demands, can activate the PFC and increase blood flow.
确定能增加脑血流量的运动类型对于开发能增强认知功能的运动方案至关重要。然而，很少有研究探讨个体可以轻松进行的、低强度、短时间的运动对脑血流量的影响，尤其是在儿童中。我们使用功能近红外光谱检查了这些运动对前额叶皮层（prefrontal cortex，PFC）血液动力学的影响。参与者包括 41 名儿童（年龄 12.1±1.5 岁，37%为女性），他们进行了 7 种低强度运动，每种运动以 10 或 20 秒的两种模式进行。使用协方差分析比较了休息和运动期间氧合血红蛋白（oxy-Hb）水平的变化，以性别和年龄为协变量。在所有运动形式中（包括动态和扭转伸展[66.6%，12 个区域中的 8 个，η=0.07-0.27]、手和手指运动[75.0%，12 个区域中的 9 个，η=0.07-0.16]和平衡运动（100.0%，6 个区域中的 6 个，η=0.13-0.25]），PFC 的多个区域观察到 oxy-Hb 水平显著增加，除了具有单调运动的静态伸展。这项研究表明，短时间、低强度的运动，如果需要一定程度的认知和/或身体需求，也可以激活 PFC 并增加血流量。
