Volume 54, Issue 3 pp. 358-365
Original Article

Inclusion of a rest period in diaphragmatic breathing increases high frequency heart rate variability: Implications for behavioral therapy

Matthew E. B. Russell

Corresponding Author

Matthew E. B. Russell

Psychology Department, University of Kentucky, Lexington, Kentucky, USA

Address correspondence to: Matthew Russell, M.S., University of Kentucky, Kastle Hall, Rm. 111E, Lexington, KY 40506, USA. E-mail: [email protected]Search for more papers by this author
April B. Scott

April B. Scott

Psychology Department, University of Kentucky, Lexington, Kentucky, USA

Search for more papers by this author
Ian A. Boggero

Ian A. Boggero

Psychology Department, University of Kentucky, Lexington, Kentucky, USA

Search for more papers by this author
Charles R. Carlson

Charles R. Carlson

Psychology Department, University of Kentucky, Lexington, Kentucky, USA

College of Dentistry, Division of Orofacial Pain, University of Kentucky, Lexington, Kentucky, USA

Search for more papers by this author
First published: 07 December 2016
Citations: 32

Work reported in this publication was supported in part by the National Institute on Aging of the National Institutes of Health under Award Number F31AG048692. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health.

Abstract

Heart rate variability (HRV) is associated with positive physiological and psychological effects. HRV is affected by breathing parameters, yet debate remains regarding the best breathing interventions for strengthening HRV. The objective of the current study was to test whether the inclusion of a postexhalation rest period was effective at increasing HRV, while controlling for breathing rate. A within-subject crossover design was used with 40 participants who were assigned randomly to a breathing pattern including a postexhalation rest period or a breathing pattern that omitted the postexhalation rest period. Participants completed training on each breathing pattern, practiced for 6 min, and sat quietly during a 5-min washout period between practices. Participants were given instructions for diaphragmatic breathing at a pace of six breaths/minute with or without a postexhalation rest period. Recordings of heart rate, breathing rate, HF-HRV, RMSSD, LF-HRV, and SDNN were collected before and during each of the breathing trials. HRV indices were derived from Lead 1 ECG recordings. Pairwise contrasts showed that inclusion of a postexhalation rest period significantly decreased heart rate (p < .001) and increased HF-HRV (p < .05). No differences were found for breathing rates (p > .05), RMSSD (p > .05), and SDNN (p > .05). Results indicated that omission of the postexhalation rest period resulted in higher LF-HRV (p < .05). A postexhalation rest period improves HF-HRV, commonly associated with self-regulatory control, yet the importance of a postexhalation rest period requires further exploration.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.