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J Affect Disord. 2017 May;214:74-80. doi: 10.1016/j.jad.2017.03.017. Epub 2017 Mar 7.

Sudarshan Kriya Yoga improves cardiac autonomic control in patients with anxiety-depression disorders.

Author information

1
Heart Institute (InCor) do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Sao Paulo, Brazil; Department of Internal Medicine, Fondazione IRCSS Ca' Granda, Ospedale Maggiore Policlínico, Milan, Italy; Department of Clinical Sciences and Community for Health, University of Milan, Milan, Italy.
2
Department of Internal Medicine, Fondazione IRCSS Ca' Granda, Ospedale Maggiore Policlínico, Milan, Italy; Department of Clinical Sciences and Community for Health, University of Milan, Milan, Italy.
3
Department of Neuroscience, "Fatebenefratelli e Oftalmico" Hospital, Milan, Italy.
4
Department of Internal Medicine, Fondazione IRCSS Ca' Granda, Ospedale Maggiore Policlínico, Milan, Italy; Department of Clinical Sciences and Community for Health, University of Milan, Milan, Italy. Electronic address: nicola.montano@unimi.it.

Abstract

BACKGROUND:

Several studies have demonstrated that adjuvant therapies as exercise and breathing training are effective in improving cardiac autonomic control (CAC) in patients with affective spectrum disorders. However, the effects of Sudarshan Kriya Yoga (SKY) on autonomic function in this population is unknown. Our objective was to test the hypothesis that SKY training improves CAC and cardiorespiratory coupling in patients with anxiety and/or depression disorders.

METHODS:

Forty-six patients with a diagnosis of anxiety and/or depression disorders (DSM-IV) were consecutively enrolled and divided in two groups: 1) conventional therapy (Control) and 2) conventional therapy associated with SKY (Treatment) for 15 days. Anxiety and depression levels were determined using quantitative questionnaires. For the assessment of CAC and cardiorespiratory coupling, cardiorespiratory traces were analyzed using monovariate and bivariate autoregressive spectral analysis, respectively.

RESULTS:

After 15-days, we observed a reduction of anxiety and depression levels only in Treatment group. Moreover, sympathetic modulation and CAC were significantly lower while parasympathetic modulation and cardiorespiratory coupling were significantly higher in the Treatment compared to Control group.

CONCLUSIONS:

Intensive breathing training using SKY approach improves anxiety and/or depressive disorders as well as CAC and cardiorespiratory coupling. These finding suggest that the SKY training may be a useful non-pharmacological intervention to improve symptoms and reduce cardiovascular risk in patients with anxiety/depression disorders.

TRIAL REGISTRATION:

ClinicalTrials.gov NCT02828072.

KEYWORDS:

Affective disorders; Cardiac autonomic control; Cardiorespiratory coupling; Sudarshan Kriya Yoga

PMID:
28285240
DOI:
10.1016/j.jad.2017.03.017
[Indexed for MEDLINE]

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