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目的:本研究旨在运用Meta分析方法检测能触发认知功能提速的最佳运动强度存在的依据。假设儿茶酚胺阈值、乳酸阈值和通气阈值是能显著提高认知功能速度的关键点。方法:比较阈值研究和运动项目强度被归为中等(40%—79%VO2max)但未测量阈值的研究,对比其平均效应量。结果:随机效应Meta分析表明,在阈值研究(g=0.58,Z=2.98,p<0.003)和未测量阈值的中等强度运动研究中(g=0.54,Z=5.01,p<0.001)均存在显著的中等强度的平均效应量。这些平均效应量间无显著差异,说明这些阈值不能代表触发点。结论:中等强度的运动,即使其强度低于阈值,也能诱导认知加速。其原因可能是外周儿茶酚胺浓度增加诱导迷走/孤束核通路激活,以及压力感知引发的中央神经化学活动增加的综合作用。
Aims: This study aimed to examine the existence of the best exercise intensity that triggers the acceleration of cognitive function using Meta-analysis. It is hypothesized that catecholamine thresholds, lactate thresholds, and ventilatory thresholds are the key points that can significantly improve cognitive function. METHODS: A comparative study of thresholds and exercise intensity was categorized as moderate (40% -79% VO2max) but not measured and compared with mean effects. Results: A meta-analysis of random effects showed significant differences in the moderate-intensity exercise study (g = 0.54, Z = 5.01, p <0.001) in the threshold studies (g = 0.58, Z = 2.98, p <0.003) The median effect of moderate intensity. There was no significant difference between these mean effects, indicating that these thresholds do not represent trigger points. Conclusions: Moderate-intensity exercise can induce cognitive acceleration even when its intensity is below a threshold. The reason may be the increase in peripheral catecholamines induces activation of the vagal / solitary nucleus and the combined effects of increased central neurochemical activity induced by stress perception.