Heart rate variability and its relation to prefrontal cognitive function: the effects of training and detraining
Heart rate variability and its relation to prefrontal cognitive function: the effects of training and detraining
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DOI：
10.1007/s00421-004-1208-0
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发表时间：
2004-12-01
影响因子：
3
通讯作者：
Thayer, JF
中科院分区：
文献类型：
--
作者：
Hansen, AL;Johnsen, BH;Thayer, JF
本研究的目的是调查身体素质，心率变异性（HRV）和认知功能之间的关系，在37名男性水手从皇家挪威海军。所有受试者都参加了为期8周的培训计划，之后受试者完成了最初的认知测试（预测试）。受试者根据其申请进一步的任务被分配到一个非训练组（DG）和一个训练组（TG）。DG退出训练计划4周，之后所有受试者再次完成认知测试（后测试）。在测试前和测试后记录身体健康，测量为最大耗氧量（（V）超过点O-2 max），静息心率变异性，和认知功能，使用连续性能任务（CPT）和工作记忆测试（WMT）测量，数据表示为平均值和标准差。结果显示，在预测试时，（V）在点O-2 max或HRV上没有组间差异。从测试前到测试后，DG的（V）over dot O-2 max显着下降，并且测试后的静息心率变异性低于TG。虽然在预测试中CPT或WMT没有组间差异，但与预测试相比，TG在后测试中对执行功能测试的反应时间更快，反应更真实。DG表现出更快的反应时间在非执行任务的后测试相比，前测试。的结果进行了讨论，在神经内脏整合框架内连接副交感神经流出到心脏前额叶神经功能。
The aim of the present study was to investigate the relationship between physical fitness, heart rate variability (HRV) and cognitive function in 37 male sailors from the Royal Norwegian Navy. All subjects participated in an 8-week training program, after which the subjects completed the initial cognitive testing (pre-test). The subjects were assigned into a detrained group (DG) and a trained group (TG) based on their application for further duty. The DG withdrew from the training program for 4 weeks after which all subjects then completed the cognitive testing again (post-test). Physical fitness, measured as maximum oxygen consumption ((V) over dot O-2max), resting HRV, and cognitive function, measured using a continuous performance task (CPT) and a working memory test (WMT), were recorded during the pre-test and the post-test, and the data presented as the means and standard deviations. The results showed no between-group differences in (V) over dot O-2max or HRV at the pre-test. The DG showed a significant decrease in (V) over dot O-2max from the pre- to the post-test and a lower resting HRV than the TG on the post-test. Whereas there were no between-group differences on the CPT or WMT at the pre-test, the TG had faster reaction times and more true positive responses on tests of executive function at the post-test compared to the pre-test. The DG showed faster reaction times on non-executive tasks at the post-test compared to the pre-test. The results are discussed within a neurovisceral integration framework linking parasympathetic outflow to the heart to prefrontal neural functions.