Medizinische Universität Graz - Research portal
Selected Publication:
Seebauer, M; Frühwirth, M; Moser, M.
Changes of respiratory sinus arrhythmia during the menstrual cycle depend on average heart rate.
Eur J Appl Physiol. 2002; 87(4-5):309-314
Doi: 10.1007/s00421-002-0634-0
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- Leading authors Med Uni Graz
- Moser Maximilian
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- Abstract:
- To evaluate the complex time course of changes in respiratory sinus arrhythmia (RSA) during the menstrual cycle, daily beat-to-beat morning recordings of heart rate (HR) were carried out in 26 healthy female subjects (age 20-29 years) during two menstrual cycles. For determination of fast, vagally mediated variations of HR we used a robust time-domain measure of RSA (logRSA). We found pronounced changes in HR during the menstrual cycle with a minimum in the early follicular phase and a maximum in the late luteal phase. There were large differences between individuals in the fluctuations of logRSA during the menstrual cycle that were related to average HR: subjects with a low HR exhibited higher values of logRSA in the luteal compared to the follicular phase, whereas the trend was reversed in subjects with a high HR. The difference of extreme points of logRSA fluctuations (early follicular and mid luteal phase) was correlated to average HR (r=-0.64, P < 0.001). We conclude that different patterns of RSA fluctuations occur depending on the level of average HR.
- Find related publications in this database (using NLM MeSH Indexing)
- Adult -
- Arrhythmia, Sinus - physiopathology
- Female - physiopathology
- Follicular Phase - physiology
- Heart Rate - physiology
- Humans - physiology
- Luteal Phase - physiology
- Menstrual Cycle - physiology
- Respiratory Mechanics - physiology
- Find related publications in this database (Keywords)
- cardiac vagal control
- respiratory sinus arrhythmia
- autonomic nervous system
- female