Effects of breathing frequency on baroreflex effectiveness index and spontaneous baroreflex sensitivity derived by sequence analysis

Wang, Yong Ping; Kuo, Terry B.J.; Lai, Chun Ting; Lee, Guo She; Yang, Cheryl C.H.

doi:10.1097/hjh.0b013e328357ff46

Cited by 7 publications

(4 citation statements)

References 29 publications

(50 reference statements)

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“…Measures of heart rate asymmetry (HRA) (HRV PI and HRV GI ) were also not changed by the I/E that is set during 0.1-Hz breathing, but had larger values at the I/E of 1:1 during 0.25-Hz breathing. At the same time, HRV RF and BRSseqϩ were greater during 0.1-Hz breathing than during 0.25-Hz breathing, which were in agreement with previous studies (5,31).…”

Section: Discussionsupporting

confidence: 93%

“…According to the direction of changes in SAP and RRI, BRSseqϩ and BRSseqϪ are calculated from up (RRIϩ/SAPϩ) and down (RRIϪ/SAPϪ) sequences, respectively. BRSseqϩ is greater than BRSseqϪ during 0.1-Hz breathing, while they are comparable during 0.25-Hz breathing in the present and previous studies (13,31). Wang et al (31) have explained the difference between BRSseqϩ and BRSseqϪ by the fact that baroreflex responsiveness (7) and the timing of baroreflex sequences (27) are both dictated by the phase of respiration.…”

Section: Discussionsupporting

confidence: 68%

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Effects of respiratory time ratio on heart rate variability and spontaneous baroreflex sensitivity

Wang

Kuo

Lai

et al. 2013

Journal of Applied Physiology

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Paced breathing is a frequently performed technique for cardiovascular autonomic studies. The relative timing of inspiration and expiration during paced breathing, however, is not consistent. We, therefore, examined whether indexes of heart rate variability and spontaneous baroreflex sensitivity would be affected by the respiratory time ratio that is set. We studied 14 healthy young adults who controlled their breathing rates to either 0.1 or 0.25 Hz in the supine and sitting positions. Four different inspiratory-to-expiratory time ratios (I/E) (uncontrolled, 1:1, 1:2, and 1:3) were examined for each condition in a randomized order. The results showed spectral indexes of heart rate variability and spontaneous baroreflex sensitivity were not influenced by the I/E that was set during paced breathing under supine and sitting positions. Porta's and Guzik's indexes of heart rate asymmetry were also not different at various I/E during 0.1-Hz breathing, but had larger values at 1:1 during 0.25-Hz breathing, although significant change was found in the sitting position only. At the same time, Porta's and Guzik's indexes obtained during 0.1-Hz breathing were greater than during 0.25-Hz breathing in both positions. The authors suggest that setting the I/E during paced breathing is not necessary when measuring spectral indexes of heart rate variability and spontaneous baroreflex sensitivity under the conditions used in this study. The necessity of paced breathing for the measurement of heart rate asymmetry, however, requires further investigation.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionsupporting

confidence: 68%

Effects of respiratory time ratio on heart rate variability and spontaneous baroreflex sensitivity

Wang

Kuo

Lai

et al. 2013

Journal of Applied Physiology

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“…15 This additional index allows better exploration of the modulation of baroreflex function in psychophysiological studies. 45,46,65 For both of the baroreflex indices, only the up-sequences (rise in SBPs accompanied by lengthening of the IBIs) were considered in this study since such sequences represent stimulation (loading) of the baroreceptors over the breathing cycle.…”

Section: Baroreflex Sensitivitymentioning

confidence: 99%

Can Slow Deep Breathing Reduce Pain? An Experimental Study Exploring Mechanisms

Jafari

Gholamrezaei

Franssen

et al. 2020

The Journal of Pain

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“…It can thus be hypothesized that restoring baroreflex gain may be an effective treatment for orthostatic hypotension in PD. Manipulating breathing patterns or frequency may increase baroreflex sensitivity at least in healthy or hypertensive individuals [47][48][49]. But, in the presence of organic lesions of the sympathetic nervous systems, such as those observed in PD, there effects might be less important than expected.…”

Section:  Scientific Rationalementioning

confidence: 99%

Emerging drugs for autonomic dysfunction in Parkinson's disease

Pérez-Lloret

Rey

Traon³

et al. 2013

Expert Opinion on Emerging Drugs

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Botulinum toxin (BTX) or glycopyrrolate might be used for sialorrhea whereas macrogol could be useful in constipation. There is preliminary evidence suggesting that fludrocortisone, domperidone, droxidopa or fipamezole may be effective for the treatment of OH. Tropicamide, clonidine or radiotherapy are under development for sialorrhea. Sildenafil may be effective for the treatment of erectile dysfunction; BTX or behavioral therapy for urinary incontinence and lubiprostone and probiotics for constipation. Sound clinical trials are needed in order to allow firm evidence-based recommendations about these treatments.

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Effects of breathing frequency on baroreflex effectiveness index and spontaneous baroreflex sensitivity derived by sequence analysis

Cited by 7 publications

References 29 publications

Effects of respiratory time ratio on heart rate variability and spontaneous baroreflex sensitivity

Effects of respiratory time ratio on heart rate variability and spontaneous baroreflex sensitivity

Can Slow Deep Breathing Reduce Pain? An Experimental Study Exploring Mechanisms

Emerging drugs for autonomic dysfunction in Parkinson's disease

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