Circadian aspects of apparent correlation dimension in human heart rate dynamics.

@article{Leeuwen1995CircadianAO,
  title={Circadian aspects of apparent correlation dimension in human heart rate dynamics.},
  author={Peter Van Leeuwen and Henrik Bettermann and Uwe An Der Heiden and H C Kuemmell},
  journal={The American journal of physiology},
  year={1995},
  volume={269 1 Pt 2},
  pages={
          H130-4
        }
}
The purpose of this study was to examine changes in complexity of cardiac dynamics over 24 h. With use of Holter monitoring, 27 24-h electrocardiogram recordings were obtained from 15 healthy subjects. For each recording, the apparent dimension (DA) was calculated for consecutive sections of 500 heartbeats. These were used to determine nighttime and daytime dimension (D(An) and D(Ad), respectively) as well as the difference between D(An) and D(Ad) (delta DA). Mean 24-h DA, D(An), and D(Ad) were… CONTINUE READING
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