Behavioral-independence features of complex heartbeat dynamics
Behavioral-independence features of complex heartbeat dynamics
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DOI：
10.1103/physrevlett.86.6026
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发表时间：
2001-06-25
影响因子：
8.6
通讯作者：
Yamamoto, Y
中科院分区：
文献类型：
--
作者：
Amaral, LAN;Ivanov, PC;Yamamoto, Y
我们测试的复杂性的心搏间期时间序列是否只是一个结果的范围广泛的尺度表征人类的行为，特别是身体活动，通过分析数据取自健康的成年受试者在三种条件下与控制：（i）“恒定的常规”协议，身体活动和姿势的变化保持在最低限度，（ii）交感神经阻滞，和（iii）副交感神经阻滞。我们发现，当身体活动和其他行为修饰剂的波动最小化时，心跳动力学的复杂性仍然存在，而神经自主神经阻滞的多重分形复杂性降低。
We test whether the complexity of the cardiac interbeat interval time series is simply a consequence of the wide range of scales characterizing human behavior, especially physical activity, by analyzing data taken from healthy adult subjects under three conditions with controls: (i) a "constant routine" protocol where physical activity and postural changes are kept to a minimum, (ii) sympathetic blockade, and (iii) parasympathetic blockade. We find that when fluctuations in physical activity and other behavioral modifiers are minimized, a remarkable level of complexity of heartbeat dynamics remains, while for neuroautonomic blockade the multifractal complexity decreases.