Autonomic nervous control of postprandial hemodynamic changes at rest and upright exercise.
Autonomic nervous control of postprandial hemodynamic changes at rest and upright exercise.
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休息和直立运动时自主神经控制餐后血流动力学变化。
DOI：
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发表时间：
1987
影响因子：
3.3
通讯作者：
J. Godtfredsen
中科院分区：
文献类型：
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作者：
H. Kelbæk;O. Munck;N. J. Christensen;J. Godtfredsen
研究了健康受试者在休息时和直立位运动期间有或没有心脏自主神经阻断时的餐后血流动力学变化。静息时心输出量增加 61%，主要是由于左心室舒张末期扩张导致每搏输出量增加。这些变化似乎依赖于自主神经系统，而餐后心率的增加则不然。运动期间，由于每搏输出量和心率均增加，进食后心输出量增加 23%。这些变化显然是受到自主神经系统的影响，而左心室扩张则不然。目前的研究结果表明，中枢循环的大部分餐后变化都受到自主神经系统的控制。
Postprandial hemodynamic changes were studied in healthy subjects at rest and during exercise in the upright position with and without autonomic blockade of the heart. At rest cardiac output increased 61% mostly because of a stroke volume increase accomplished by left ventricular end-diastolic dilation. These changes seemed to be dependent on the autonomic nervous system, whereas the postprandial heart rate increase did not. During exercise cardiac output was 23% higher after food intake due to a rise in both stroke volume and heart rate. These changes were apparently under influence of the autonomic nervous system, whereas left ventricular dilation was not. The present findings indicate that most of the postprandial changes in the central circulation are under control of the autonomic nervous system.