Hemodynamic responses and linear and non-linear dynamics of cardiovascular autonomic regulation following supramaximal exercise
Hemodynamic responses and linear and non-linear dynamics of cardiovascular autonomic regulation following supramaximal exercise
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DOI：
10.1007/s00421-008-0930-4
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发表时间：
2009-03-01
影响因子：
3
通讯作者：
Kanaley, Jill A.
中科院分区：
文献类型：
--
作者：
Goulopoulou, Styliani;Fernhall, Bo;Kanaley, Jill A.
本研究的目的是检查超强度运动后的血流动力学反应和心血管自主调节。对 11 名男性进行 30 秒 Wingate 测试之前和之后 10 分钟记录心电图 R-R 间期和逐搏血流动力学。使用心率（HR）和动脉压变异性的频谱分析、HR复杂性分析、序列技术和跨频谱传递函数来量化自主调节和压力反射敏感性。运动后，心率变异性的高频成分（迷走神经相关指数）低于运动前的值，而低频与高频的比率（交感迷走神经平衡指数）和血压变异性的低频成分（交感血管舒缩张力指数）则大于基线值（p < 0.05）。与基线相比，运动后心率复杂性和压力反射敏感性降低，p < 0.05。年轻健康男性在剧烈体力消耗仅30秒后，心血管自主控制需要10分钟以上才能完全恢复。
The purpose of this study was to examine hemodynamic responses and cardiovascular autonomic regulation following supramaximal exercise. Electrocardiographic R-R intervals and beat-to-beat hemodynamics were recorded before and for 10 min after a 30-s Wingate test in 11 males. Spectral analysis of heart rate (HR) and arterial pressure variability, analysis of HR complexity, the sequence technique and the cross-spectral transfer function were used to quantify autonomic regulation and baroreflex sensitivity. After exercise, the high frequency component of HR variability (vagal-related index) was lower than pre-exercise values, whereas the ratio low frequency to high frequency (index of sympathovagal balance) and the low frequency component of blood pressure variability (index of sympathetic vasomotor tone) were greater than baseline (p < 0.05). Post-exercise HR complexity and baroreflex sensitivity were reduced compared to baseline, p < 0.05. Cardiovascular autonomic control requires more than 10 min to fully recover after intense physical exertion of only 30-s in young healthy males.