title: Improvement of circadian rhythm of heart rate variability by eurythmy therapy training.
abstract: Background. Impairment of circadian rhythm is associated with various clinical problems. It not only has a negative impact on quality of life but can also be associated with a significantly poorer prognosis. Eurythmy therapy (EYT) is an anthroposophic movement therapy aimed at reducing fatigue symptoms and stress levels. Objective. This analysis of healthy subjects was conducted to examine whether the improvement in fatigue symptoms was accompanied by improvements in the circadian rhythm of heart rate variability (HRV). Design. Twenty-three women performed 10 hours of EYT over six weeks. Electrocardiograms (ECGs) were recorded before and after the EYT trial. HRV was quantified by parameters of the frequency and time domains and the nonlinear parameters of symbolic dynamics. Results. The day-night contrast with predominance of vagal activity at night becomes more pronounced after the EYT training, and with decreased Ultralow and very low frequencies, the HRV shows evidence of calmer sleep. During the night, the complexity of the HRV is significantly increased indicated by nonlinear parameters. Conclusion. The analysis of the circadian patterns of cardiophysiological parameters before and after EYT shows significant improvements in HRV in terms of greater day-night contrast caused by an increase of vagal activity and calmer and more complex HRV patterns during sleep.
authors.affiliation: Task Force Integrative Medicine in Pediatric Oncology, Department of Pediatric Oncology and Hematology, Otto-Heubner-Center for Pediatric and Adolescent Medicine (OHC), Charité-Universitätsmedizin Berlin, Augustenburger Platz 1, 13353 Berlin, Germany.
authors.forename: Georg
authors.initials: G
authors.lastname: Seifert
authors.forename: Jenny-Lena
authors.initials: JL
authors.lastname: Kanitz
authors.forename: Kim
authors.initials: K
authors.lastname: Pretzer
authors.forename: Günter
authors.initials: G
authors.lastname: Henze
authors.forename: Katharina
authors.initials: K
authors.lastname: Witt
authors.forename: Sina
authors.initials: S
authors.lastname: Reulecke
authors.forename: Andreas
authors.initials: A
authors.lastname: Voss