The Sixth Hospital of Wuhan, Affiliated Hospital of Jianghan University, Wuhan, China.
Department of Rehabilitation, Kisen Hospital, Tokyo, Japan.
Adv Exp Med Biol. 2024;1463:119-125. doi: 10.1007/978-3-031-67458-7_21.
The high concentration of oxygenated haemoglobin (OHb) in the prefrontal cortex (PFC) during exercise improves cognitive performance. In this study, we aimed to elucidate the relationship of cognitive function with the OHb concentration difference between the left and right PFC (L-PFC and R-PFC, respectively) during sustained exercise. We enrolled 12 healthy adult males who, after a 4-min rest and warm-up, performed a 40-min exercise regime at a workload corresponding to 50% maximal oxygen consumption. A 2-back task was performed, and the reaction times (RTs) were recorded before exercise, immediately after exercise, and 20 min after exercise. Near-infrared spectroscopy was used to monitor L-PFC and R-PFC. RT was shortened immediately and 20 min after exercise, and OHb concentration difference between L-PFC and R-PFC positively correlated with RT 20 min after exercise. These findings suggest that 40-min exercise induced a phenomenon of neural compensation.
运动时前额皮质（PFC）中高浓度的氧合血红蛋白（OHb）可改善认知表现。在这项研究中，我们旨在阐明认知功能与持续运动期间左、右前额皮质（分别为 L-PFC 和 R-PFC）之间的 OHb 浓度差异之间的关系。我们招募了 12 名健康成年男性，在休息和热身 4 分钟后，以相当于最大耗氧量 50%的工作量进行 40 分钟的运动。进行了 2 次回溯任务，并记录了运动前、运动后即刻和运动后 20 分钟的反应时间（RT）。使用近红外光谱监测 L-PFC 和 R-PFC。运动后即刻和 20 分钟时 RT 缩短，L-PFC 和 R-PFC 之间的 OHb 浓度差异与运动后 20 分钟时的 RT 呈正相关。这些发现表明 40 分钟的运动诱导了一种神经补偿现象。
