https://scholars.lib.ntu.edu.tw/handle/123456789/390932
標題: | Effects of breathing frequency on the heart rate deceleration capacity and heart rate acceleration capacity | 作者: | YONG-PING WANG Kuo, Terry B. J. Lai, Chun-Ting Yang, Cheryl C. H. |
關鍵字: | Acceleration; Deceleration; Heart rate; Respiration | 公開日期: | 2015 | 卷: | 115 | 期: | 11 | 起(迄)頁: | 2415-2420 | 來源出版物: | European Journal of Applied Physiology | 摘要: | Purpose: The deceleration capacity (DC) and acceleration capacity (AC) of heart rate as well as the respiratory rate predict outcome after acute myocardial infarction. We evaluated the relation between breathing frequency and both DC and AC, as well as the difference between them. Methods: We studied fourteen healthy young adults who breathed spontaneously and controlled their breathing to rates of 0.1, 0.2, 0.3, and 0.4?Hz in a supine position. A 5-min R–R interval time series without movement artifacts or ectopic beats was obtained from each studied period and scanned to identify the anchor points that were characterized by a value longer or shorter than the preceding value. Averaged changes of R–R intervals surrounding the deceleration and acceleration anchors were calculated as DC and AC, respectively. Results: The magnitudes of DC and AC increased progressively as breathing frequency decreased (Both p?0.001 by one-way repeated-measures analysis of variance). The magnitude of DC was larger than the magnitude of AC during 0.1-Hz breathing (95?% confidence interval of their difference: 1.7–9.7?ms), while the difference between them reduced to near zero at higher frequencies. Conclusions: Slow breathing enhances the magnitudes of DC and AC simultaneously under the conditions used in this study. The increase in the magnitude of DC is significantly greater than that of AC. ? 2015, Springer-Verlag Berlin Heidelberg. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-84944352421&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/390932 |
DOI: | 10.1007/s00421-015-3219-4 | SDG/關鍵字: | acceleration; adult; autonomic nervous system; breathing; breathing rate; deceleration; female; heart rate; human; male; physiology; respiratory sinus arrhythmia; young adult; Acceleration; Adult; Autonomic Nervous System; Deceleration; Female; Heart Rate; Humans; Male; Respiration; Respiratory Rate; Respiratory Sinus Arrhythmia; Young Adult |
顯示於: | 醫學院附設醫院 (臺大醫院) |
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