Diurnal variations in vagal and sympathetic cardiac control.
Diurnal variations in vagal and sympathetic cardiac control.
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迷走神经和交感神经心脏控制的昼夜变化。
DOI：
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发表时间：
1990
影响因子：
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通讯作者：
K. Takata
中科院分区：
文献类型：
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作者：
J. Hayano;Y. Sakakibara;M. Yamada;Takeshi Kamiya;T. Fujinami;Kiyoko Yokoyama;Y. Watanabe;K. Takata
为了研究自主心脏控制的昼夜变化，在控制呼吸（15次呼吸/分钟）期间测量仰卧位和站立位心率变异性的功率谱分量的幅度。在0700和2300 h之间每小时进行检查，在8名男性受试者的活动和食物摄入量被控制在实验室24 h。呼吸分量（0.25 Hz）在上午大于下午晚些时候（P <0.05），并在仰卧位进食后30 min下降（P <0.01），但在站立位时不受时间或进食量的影响。Mayer波成分（0.03-0.15 Hz）不随时间变化，但在进食后90 min，无论仰卧位还是站立位，Mayer波成分均增加（P <0.01和P <0.05）。这些数据表明，仰卧迷走神经心脏控制在清醒期间增加，在早晨和减少30分钟后的食物摄入量和交感神经心脏控制增加90分钟后的食物摄入量。
To investigate the diurnal variation in autonomic cardiac control, the magnitudes of the power spectral components of supine and standing heart rate variability were measured during controlled respiration (15 breaths/min). Examination was performed hourly between 0700 and 2300 h in eight male subjects whose activities and food intake were controlled for 24 h in the laboratory. The respiratory component (0.25 Hz) was greater in the morning than in the late afternoon (P less than 0.05) and decreased 30 min after food intake (P less than 0.01) in the supine position, but it was unaffected by the time of day or food intake while in the standing position. The Mayer wave component (0.03-0.15 Hz) did not change with the time of day, but it increased 90 min after food intake in both supine and standing positions (P less than 0.01 and P less than 0.05, respectively). These data suggest that supine vagal cardiac control during the waking period increases in the morning and decreases 30 min after food intake and that sympathetic cardiac control increases 90 min after food intake.