What Constitutes an Adequate Evaluation of Device-Guided Breathing?—Reply

Landman, Gijs W. D.; Hateren, Kornelis J. J. van; Kleefstra, Nanne

doi:10.1001/jamainternmed.2013.13790

Cited by 1 publication

(1 citation statement)

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“…The mixed result sparked a debate on what constitutes device-guided breathing (Huang and Subak, 2014; Landman et al, 2014). In performing our study and comparing our results to those of Limberg et al, (2013), we appreciate that what constitutes SDB varies and should be defined clearly to evaluate its use for treatment and to decipher and to determine those factors that to favorable results.…”

Section: Discussionmentioning

confidence: 99%

Increased cardio-respiratory coupling evoked by slow deep breathing can persist in normal humans

Dick

Mims

Hsieh

et al. 2014

Respiratory Physiology & Neurobiology

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Slow deep breathing (SDB) has a therapeutic effect on autonomic tone. Our previous studies suggested that coupling of the cardiovascular to the respiratory system mediates plasticity expressed in sympathetic nerve activity. We hypothesized that SDB evokes short-term plasticity of cardiorespiratory coupling (CRC). We analyzed respiratory frequency (fr), heart rate and its variability (HR&HRV), the power spectral density (PSD) of blood pressure (BP) and the ventilatory pattern before, during, and after a 20-min epoch of SDB. During SDB, CRC and the relative PSD of BP at fr increased; mean arterial pressure decreased; but HR varied; increasing (n=3), or decreasing (n=2) or remaining the same (n=5). After SDB, short-term plasticity was not apparent for the group but for individuals differences existed between baseline and recovery periods. We conclude that a repeated practice, like pranayama, may strengthen CRC and evoke short-term plasticity effectively in a subset of individuals.

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Section: Discussionmentioning

confidence: 99%