Entropy Analysis of RR and QT Interval Variability during Orthostatic and Mental Stress in Healthy Subjects

@article{Baumert2014EntropyAO,
  title={Entropy Analysis of RR and QT Interval Variability during Orthostatic and Mental Stress in Healthy Subjects},
  author={Mathias Baumert and Barbora Czippelova and Anand Ganesan and Martin Schmidt and Sebastian Zaunseder and Michal Javorka},
  journal={Entropy},
  year={2014},
  volume={16},
  pages={6384-6393}
}
Autonomic activity affects beat-to-beat variability of heart rate and QT interval. The aim of this study was to explore whether entropy measures are suitable to detect changes in neural outflow to the heart elicited by two different stress paradigms. We recorded short-term ECG in 11 normal subjects during an experimental protocol that involved head-up tilt… CONTINUE READING