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Heart Rate Variability Biofeedback in Security Forces
Sponsor: Egas Moniz - Cooperativa de Ensino Superior, CRL
Summary
This exploratory study evaluates the effectiveness of a 12-session Heart Rate Variability Biofeedback (HRV-BFB) protocol in reducing distress and burnout while promoting psychological well-being among Portuguese National Republican Guard (GNR) professionals. Exposed to high occupational stress from unpredictable risks, shift work, and limited resources, these individuals face elevated vulnerability to chronic stress outcomes. The intervention leverages real-time HRV feedback to enhance autonomic regulation, breathing techniques, and emotional self-regulation.
Official title: Heart Rate Variability Biofeedback in Distress Regulation and Burnout Prevention Among Security Forces
Key Details
Gender
All
Age Range
18 Years - 55 Years
Study Type
INTERVENTIONAL
Enrollment
50
Start Date
2026-01-28
Completion Date
2026-08-01
Last Updated
2026-02-06
Healthy Volunteers
Yes
Interventions
Heart Rate Variability Biofeedback (HRV-BFB) Training
Participants receive a structured heart rate variability biofeedback (HRV-BFB) training protocol delivered over 4 weeks. The intervention uses a portable chest-worn ECG sensor (eSense Pulse) connected via Bluetooth to a mobile application that provides real-time visual feedback of heart rate variability. Each participant completes 12 individual sessions of 12 minutes each (one session every 2 days). Sessions take place in a quiet room and follow a standardized format: a brief preparation phase, followed by approximately 10 minutes of guided breathing at resonance frequency (around 6 breaths per minute) using a visual breathing guide. The application displays color-coded feedback indicating how closely the participant's physiological response matches the target HRV pattern, and participants are instructed to adjust their breathing and recall positive memories to maximize time in the desired state. The aim is to increase HRV, strengthen parasympathetic activation, and improve stress and
Locations (1)
GNR - Comando Terrritorial de Setúbal (GNR - Setubal Territorial Command Centre)
Setúbal, Portugal