NCT05913505

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

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
50

participants targeted

Target at P50-P75 for early_phase_1

Timeline
Completed

Started Feb 2023

Geographic Reach
1 country

1 active site

Status
unknown

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

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

April 2, 2023

Completed
3 months until next milestone

First Posted

Study publicly available on registry

June 22, 2023

Completed
10 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 24, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 24, 2024

Completed
Last Updated

June 22, 2023

Status Verified

June 1, 2023

Enrollment Period

1.2 years

First QC Date

April 2, 2023

Last Update Submit

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+

EXPERIMENTAL

Twenty-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.

Behavioral: OSC+

OSC-

SHAM COMPARATOR

Twenty-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).

Behavioral: OSC-

Interventions

OSC-BEHAVIORAL

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.

OSC-

Eligibility Criteria

Age18 Years - 55 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

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

RECRUITING

MeSH Terms

Conditions

Brain Injuries, Traumatic

Condition Hierarchy (Ancestors)

Brain InjuriesBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesCraniocerebral TraumaTrauma, Nervous SystemWounds and Injuries

Study Officials

  • Michael J Larson, PhD

    Brigham Young University

    STUDY CHAIR

Central Study Contacts

Leah D Talbert, MS

CONTACT

Michael J Larson, PhD

CONTACT

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
Model Details: Twenty-five participants will complete the treatment condition in a pseudo-randomized order (determined by random number generator with constraints) such that half of the participants will be given the heart rate variability biofeedback active condition and half will be given the sham control condition. However, the participants in the sham control condition will be offered treatment with heart rate variability biofeedback after study completion. 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).
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

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.

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.
More information

Locations