PMID: 9428968Jan 16, 1998Paper

Relationship between changes in EMG and respiratory sinus arrhythmia in a study of relaxation therapy for asthma

Applied Psychophysiology and Biofeedback
P M LehrerS Porges

Abstract

This paper reports the relationships among changes in cardiovagal activity, surface EMG, and measures of pulmonary function in a study of relaxation therapy for asthma. Changes in FEV1/FVC were negatively correlated with those in cardiac interbeat interval, consistent with the hypothesis that relaxation-induced changes in airway function are mediated autonomically, with increased vagal tone and/or decreased sympathetic arousal producing bronchoconstriction. Contrary to Kotses's theory of a vagal-trigeminal reflex as mediator for relaxation-induced improvement in asthma, decreases in pulmonary function occurred during relaxation sessions, accompanied by increases in cardiovagal activity, and within-session changes in frontal EMG in the first session of training were positively associated with changes in a measure of pulmonary function (FEV1/FVC). However, consistent with this hypothesis, first-session frontalis EMG changes were positively associated with changes in respiratory sinus arrhythmia, and last-session changes in cardiac interbeat interval were positively associated with changes in FEV1/FVC. The results suggest that the immediate effects of generalized relaxation instruction can be associated with a parasympathetic rebo...Continue Reading

Citations

Jan 27, 2006·The Cochrane Database of Systematic Reviews·J YorkeC M Shuldham
Mar 3, 2007·Applied Psychophysiology and Biofeedback·Maria Katsamanis KaravidasAfton Hassett
Mar 21, 2000·The Journal of Asthma : Official Journal of the Association for the Care of Asthma·R M HackmanM E Gershwin
Jun 22, 2005·Current Allergy and Asthma Reports·Betsy Blazek-O'Neill
Oct 20, 2005·The Cochrane Database of Systematic Reviews·J YorkeC Shuldham
Nov 24, 2006·The Spanish Journal of Psychology·Nikolay Suvorov
Nov 30, 2005·Psychosomatic Medicine·Jonathan M FeldmanPaul M Lehrer
Nov 11, 2017·Applied Psychophysiology and Biofeedback·Paul M LehrerFrederick S Wamboldt
Feb 22, 2012·Annals of Behavioral Medicine : a Publication of the Society of Behavioral Medicine·Andreas von LeupoldtThomas Ritz
Mar 8, 2013·The Nursing Clinics of North America·Maureen George, Maxim Topaz

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