Heart Rate Variability Biofeedback Following Traumatic Brain Injury
A Randomized Controlled Trial of Heart Rate Variability Biofeedback Following Traumatic Brain Injury
1 other identifier
interventional
50
1 country
1
Brief Summary
Individuals with mild traumatic brain injury will be randomly assigned to an active heart rate variability biofeedback condition and a sham condition. The investigators will use a randomized pre-post design that will consist of two data collection phases and a 5-week treatment condition. The heart rate variability biofeedback active condition is designed to increase heart rate oscillations (Osc+ condition) consistent with current best practices, while the sham control heart rate variability biofeedback condition is designed to decrease heart rate oscillations (Osc- condition).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for early_phase_1
Started Feb 2023
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
February 15, 2023
CompletedFirst Submitted
Initial submission to the registry
April 2, 2023
CompletedFirst Posted
Study publicly available on registry
June 22, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 24, 2024
CompletedStudy Completion
Last participant's last visit for all outcomes
April 24, 2024
CompletedJune 22, 2023
June 1, 2023
1.2 years
April 2, 2023
June 12, 2023
Conditions
Outcome Measures
Primary Outcomes (2)
Stress Recovery
Test whether heart rate variability recovery following a stressor improves in individuals with mild traumatic brain injury following heart rate variability biofeedback
Through study completion, an average of 7 weeks
Resting HRV
Examine whether heart rate variability increases at rest in individuals with mild traumatic brain injury from pre-treatment to post-treatment following heart rate variability biofeedback
Through study completion, an average of 7 weeks
Secondary Outcomes (5)
Physical Symptoms
Through study completion, an average of 7 weeks
Scale of Positive and Negative Experience
Through study completion, an average of 7 weeks
Depression Anxiety Stress Scales
Through study completion, an average of 7 weeks
Satisfaction with Life Scale
Through study completion, an average of 7 weeks
Cognitive Functioning
Through study completion, an average of 7 weeks
Study Arms (2)
OSC+
EXPERIMENTALTwenty-five participants will complete five weeks of heart rate variability biofeedback using emWave software (HeartMath®Institute, 2020). Participants will receive a weekly 30-minute heart rate variability biofeedback session for five weeks at the University Parkway Center, Brigham Young University. The heart rate variability biofeedback protocol will be based on Lehrer et al., 2013 and Yoo et al., 2022. This format will aid participants in implementing and learning breathing and heart rate variability biofeedback skills (Lehrer et al., 2020). All participants will wear an ear sensor to measure their pulse. The heart rate variability biofeedback will focus on autonomic balance through slow breathing at a resonance frequency of approximately 6 breathes per minute. The best approximate breathing pace for resonance frequency will be estimated and participant's resonance frequency will be provided and used for their homework and subsequent training sessions.
OSC-
SHAM COMPARATORTwenty-five participants will complete five weeks of Osc-. Similarly, for the Osc- procedures, the client will be required to complete a five-week intervention. During the weekly session, participants will also be wearing an earlobe monitor with HeartMath. Participants will be administered the Scale of Positive and Negative Experience at the beginning of each session to assess for mood. Participants will also be administered the 3-item Rivermead Post Concussion Symptoms Questionnaire at the beginning of each session. Participants will be instructed that the purpose of this portion of the study is to decrease their breathing oscillations. A program was designed by Yoo and colleagues (2022) that gives feedback regarding a "calmness" score which reflects a better score (i.e., higher) when participants breath in a pattern that elicits less variability (i.e., less oscillations).
Interventions
During the first week, the baseline will be assessed and resonance frequency. Specifically, during their first intervention session the participants will be told that the goal of the sessions includes decreasing heart rate variability and avoiding slow and steady breathing. The participants will then be asked to choose five strategies to lower their heart rate oscillations. Participants will be told to avoid slow breathing as it causes large heart rate oscillations. For the second session, the therapist will check in with the participant and discuss how the practice went. Participants will then select three strategies that they will practice for three five-minute conditions following a five-minute baseline. Sessions three, four, and five will include three conditions: a five-minute baseline and two strategies of their choice. For each session, the best strategy will be calculated and written on the assignment sheets to be used during the week for their four homework sessions.
Eligibility Criteria
You may qualify if:
- At least six months post-injury to account for spontaneous recovery
- Aged 18-55 years
- Fluent in English
- Able to provide informed consent.
You may not qualify if:
- Presence of a pacemaker
- Previous self-reported heart attack with hospitalization
- Diagnosed learning disability
- Other neurological difficulties or diagnoses (i.e., stroke, epilepsy)
- Participation in current litigation
- Uncorrected visual impairment.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Brigham Young University
Provo, Utah, 84606, United States
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY CHAIR
Michael J Larson, PhD
Brigham Young University
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- early phase 1
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, OUTCOMES ASSESSOR
- Masking Details
- Baseline measurements will be collected by undergraduate research assistants blinded to group conditions to reduce possible experimenter bias effects. Additionally, research assistants will be blinded to conditions for all testing sessions.
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Principal Investigator
Study Record Dates
First Submitted
April 2, 2023
First Posted
June 22, 2023
Study Start
February 15, 2023
Primary Completion
April 24, 2024
Study Completion
April 24, 2024
Last Updated
June 22, 2023
Record last verified: 2023-06
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP, ICF, ANALYTIC CODE
- Time Frame
- Once data collection and data analysis has been completed and published in a scientific journal, the study data (de-identified) will either be posted on an open science website, such as the Open Science Framework, or will be given to other researchers upon request.
Study protocol, materials, and analysis plans are already posted on the Open Science Framework (https://osf.io/5gwpk). Actual study data (de-identified) will be made available, along with analysis codes, once the study has been complete and published.