Reply to "Letter to the editor: Does low-frequency power of heart rate variability correlate with cardiac sympathetic tone in normal sheep?".
نویسندگان
چکیده
Davide Martelli, Alessandro Silvani, Robin M. McAllen, Clive N. May, and Rohit Ramchandra Florey Institute of Neuroscience and Mental Health, University of Melbourne, Parkville, Victoria, Australia; Laboratory of Physiological Regulation in Sleeping Mice, Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy; and Department of Physiology, University of Auckland, Auckland, New Zealand
منابع مشابه
The low frequency power of heart rate variability is neither a measure of cardiac sympathetic tone nor of baroreflex sensitivity.
The lack of noninvasive approaches to measure cardiac sympathetic nerve activity (CSNA) has driven the development of indirect estimates such as the low-frequency (LF) power of heart rate variability (HRV). Recently, it has been suggested that LF HRV can be used to estimate the baroreflex modulation of heart period (HP) rather than cardiac sympathetic tone. To test this hypothesis, we measured ...
متن کاملLetter to the editor: Does low-frequency power of heart rate variability correlate with cardiac sympathetic tone in normal sheep?
TO THE EDITOR: We read with great interest the recent work by Martelli et al. (6), published in American Journal of Physiology-Heart and Circulatory Physiology, that describes experiments in conscious sheep in which cardiac sympathetic nerve activity (CSNA), heart rate variability (HRV), and baroreflex sensitivity (BRS) were measured. CSNA did not correlate with the low-frequency (LF) component...
متن کاملComparison of the effect of aerobic exercise in water with two different temperatures with outside water environment on the index of very low frequency waves of heart rate variability in active young men
Introduction and purpose: Cardiac response to body core temperature variation measured with the very low-frequency parameter of heart rate variability. The aim of this study was to investigate the variability of very low frequency due to different temperatures of aerobic training in water and dry. Materials and methods: 40 academic active male were selected as research subjects. Then, all subje...
متن کاملتأثیر تمرین هوازی در خشکی، آب معمولی و آب گرم بر تغییرپذیری ضربان قلب دوره ریکاوری در مردان جوان سالم
Background & Aims: The purpose of this study was to investigate the effects of land, warm and normal water aerobic exercises on heart rate variability in recovery period on healthy young men. Materials & Methods: In this study, subjects were randomly divided into four groups (control, Land aerobic exercise, normal water aerobic exercise, and warm water aerobic exercise) and performed reg...
متن کاملPost-reperfusion Coagulopathy Hyperventilation-induced Unconsciousness during Labour
Sir,—In commenting on our paper [1], Kardos, Rudas and Simon described their own use of the analysis of short-term heart rate variability to assess the effect of varying posture on cardiac autonomic control. Essentially they have confirmed that head-up tilt causes sympathetic activation (as evidenced by an increase in the low frequency variability) in comparison with supine and head-down positi...
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عنوان ژورنال:
- American journal of physiology. Heart and circulatory physiology
دوره 308 2 شماره
صفحات -
تاریخ انتشار 2015