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首页> 外文期刊>Pharmacology, Biochemistry and Behavior >A test of the catecholamines hypothesis for an acute exercise-cognition interaction.
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A test of the catecholamines hypothesis for an acute exercise-cognition interaction.

机译：对儿茶酚胺假设进行急性运动-认知相互作用的检验。

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The purpose of the study was to examine the usage of norepinephrine (NE) and dopamine (DA) in the brain when exercising while simultaneously undertaking cognitive tests. Plasma concentrations of the NE metabolite 3-methoxy 4-hydroxyphenylglycol (MHPG) and the DA metabolite homovanillic acid (HVA) showed a linear increase from rest to exercising at 40% and 80% maximum power output (W.max) while simultaneously undertaking cognitive tasks (random number generation (RNG) and response time). Delta plasma concentrations of MHPG and HVA at each exercise intensity while undertaking cognitive tasks and while exercising without cognitive tasks did not differ. Taking blood samples at 0, 1, 3, and 5 min following cessation of exercise did not affect results. Regression correlations showed that delta MHPG and HVA plasma concentrations at the 1 and 3 min sampling times were strong predictors of delta RNG, response time and movement time. Reaction time at 80% W.max significantly increased, while movement time at 80% W.max significantly decreased. It was concluded that these results provide no support for a direct effect of increased catecholamines concentrations on cognitive performance during exercise. The regression data suggest that there is some relationship between exercise, catecholamines concentrations and cognition.
机译：这项研究的目的是检查运动时同时进行认知测试的大脑中去甲肾上腺素（NE）和多巴胺（DA）的使用情况。 NE代谢物3-甲氧基4-羟基苯基乙二醇（MHPG）和DA代谢物高香草酸（HVA）的血浆浓度从静止到最大功率输出（W.max）分别为40％和80％时呈线性增加，同时进行认知任务（随机数生成（RNG）和响应时间）。在进行认知任务和不进行认知任务的情况下，每种运动强度下MHPG和HVA的血浆Delta浓度均无差异。停止运动后0、1、3和5分钟采集血液样本不会影响结果。回归相关性表明，在1分钟和3分钟采样时间时，δMHPG和HVA血浆浓度是δRNG，响应时间和运动时间的强预测指标。在80％W.max处的反应时间显着增加，而在80％W.max处的移动时间显着减少。结论是，这些结果不支持增加儿茶酚胺浓度对运动过程中认知能力的直接影响。回归数据表明运动，儿茶酚胺浓度和认知之间存在一定关系。

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