Circulatory response and autonomic nervous activity during gum chewing
Circulatory response and autonomic nervous activity during gum chewing
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DOI：
10.1111/j.1600-0722.2009.00637.x
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发表时间：
2009-08-01
影响因子：
1.9
通讯作者：
Maeda, Yoshinobu
中科院分区：
文献类型：
--
作者：
Hasegawa, Yoko;Sakagami, Joe;Maeda, Yoshinobu
咀嚼已被证明可以增强体循环，循环反应似乎在很大程度上受到自主神经活动的调节，通过一个比其他活动更复杂的调节系统。然而，很少有研究探讨咀嚼运动引起的自主神经活动和体循环变化之间的关系。我们研究了咀嚼口香糖时体循环和自主神经活动的变化，以阐明咀嚼的影响。10名正常牙列的健康受试者在连续咀嚼口香糖的同时进行心电图、动脉血压和咬肌肌电测量，作为体循环指标。通过心率和血压波动分析评价心脏交感神经活动和迷走神经活动以及血管交感神经活动。进行重复方差分析和多重比较，以确定咀嚼口香糖期间每个指标的时间变化。嚼口香糖会增加心率和平均动脉压。虽然心脏交感神经活动和迷走神经活动有显着变化，血管交感神经活动没有。这些结果表明，在心脏的自主神经活动的变化，主要涉及在增强体循环与口香糖咀嚼。这就解释了咀嚼运动中自主神经调节的某些特点。
Mastication has been proven to enhance the systemic circulation, with circulatory responses seeming to be largely regulated by autonomic nervous activity via a more complex regulatory system than those of other activities. However, few studies have examined the relationships between changes in autonomic nervous activity and the systemic circulation that are induced by masticatory movement. We investigated changes in the systemic circulation and autonomic nervous activity during gum chewing to clarify the influence of mastication. Electrocardiograms, arterial blood pressure, and masseter electromyograms were taken while chewing gum continuously as indicators of systemic circulation in 10 healthy subjects with normal dentition. Cardiac sympathetic activity and vagus nervous activity, as well as vasomotor sympathetic nervous activity, were evaluated by fluctuation analysis of heart rate and blood pressure. Repeated analysis of variance and multiple comparisons were performed to determine chronological changes in each indicator during gum chewing. Gum chewing increased the heart rate and the mean arterial pressure. Although cardiac sympathetic activity and vagus nervous activity showed significant changes, vasomotor sympathetic nervous activity did not. These results suggest that changes in the autonomic nervous activity of the heart are mainly involved in the enhancement of systemic circulation with gum chewing. This explains some characteristics of autonomic nervous regulation in masticatory movement.