1. The effects of paced breathing on psychological distress vulnerability and heart rate variability in adults sustaining traumatic injury.
- Author
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Pozzato I, Schoffl J, Tran Y, Arora M, McBain C, Middleton JW, Cameron ID, and Craig A
- Subjects
- Humans, Male, Female, Adult, Stress Disorders, Post-Traumatic psychology, Stress Disorders, Post-Traumatic physiopathology, Stress Disorders, Post-Traumatic therapy, Breathing Exercises methods, Middle Aged, Respiratory Rate physiology, Wounds and Injuries psychology, Wounds and Injuries physiopathology, Young Adult, Autonomic Nervous System physiopathology, Depressive Disorder, Major physiopathology, Depressive Disorder, Major therapy, Depressive Disorder, Major psychology, Stress, Psychological physiopathology, Stress, Psychological psychology, Heart Rate physiology, Psychological Distress
- Abstract
Background: Traumatic physical injuries can lead to psychological distress and increased risk of psychiatric disorders, often reflected in dysregulated autonomic responses measurable through heart rate variability (HRV). Slow-paced breathing has shown potential in enhancing HRV, but its effectiveness in injured survivors remains unexplored. This study investigates the effect of slow-paced breathing on HRV among injured survivors compared to non-injured individuals and explores the influence of psychological distress and spontaneous respiratory rate on this effect., Methods: The study involved 120 injured individuals and 112 non-injured controls with similar age, sex, and education levels. Injured participants with minor-to-moderate injuries from traffic crashes were assessed 3-6 weeks post-injury. Psychological distress was defined as the risk of post-traumatic stress disorder and/or major depression. Physiological assessment (HRV) included a 2-min resting baseline and a 2-min slow-paced breathing session (6 breaths/min). Repeated measure MANCOVA assessed HRV changes between groups, while correlation analyses examined the relationship between these changes., Results: Injured survivors had significantly lower HRV than non-injured controls. Both groups showed notable HRV increases during slow-paced breathing. Among injured individuals, those with higher psychological distress exhibited greater HRV increases, particularly in parasympathetic activity and overall variability. Higher spontaneous respiratory rates were associated with greater HRV changes, especially in non-injured individuals., Conclusion: Slow-paced breathing demonstrated significant physiological effects for injured survivors, particularly those with higher psychological distress, and supports its potential in improving stress regulation post-injury. Future research should examine the long-term effects of sustained breathing practice and clinical applicability in reducing psychological distress and disability post-injury., Competing Interests: Declaration of competing interest The author(s) declare none., (Copyright © 2025 The Authors. Published by Elsevier B.V. All rights reserved.)
- Published
- 2025
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