Trial · NCT07911215
Effects of Brief Heart Rate Variability Biofeedback on Physiological and Emotional Responses
NCT07911215, Not applicable, Completed, University of Haifa
3 sourcestrials-2026-11-12-0.5.0
Cite this record
ConductScience Library. Effects of Brief Heart Rate Variability Biofeedback on Physiological and Emotional Responses. Trials, record NCT07911215. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT07911215
On this page
Trial
As registered on ClinicalTrials.gov, in the graph's capture of the registry.
- Title
- Effects of Brief Heart Rate Variability Biofeedback on Physiological and Emotional Responses
- NCT number
- NCT07911215
- Status
- Completed
- Phases
- Not applicable
- Enrollment
- 32 participants, actual
- Lead sponsor
- University of Haifa
- Conditions
- Autonomic Nervous System Function, Psychophysiological Regulation
- Interventions
- Psychoeducational Video Viewing, Heart Rate Variability Biofeedback
- First posted
- 2026-11-02
- Last updated
- 2026-11-04
Source ClinicalTrials.gov
Registered outcomes6
Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.
| List | Outcome | Time frame | Description |
|---|---|---|---|
| Primary | Change in Mean Forehead Hemoencephalography (HEG) rCBO2 Signal | Baseline (5 minutes), intervention Block 1 (first 5 minutes), intervention Block 2 (second 5 minutes), and immediately post-intervention (5 minutes), within one laboratory visit. | Change in the mean device-derived rCBO2 signal recorded using a BioTekna HEG sensor at Fpz. Each recording lasted approximately five minutes. The index is not a calibrated measure of neuronal activity or absolute cerebral oxygenation. |
| Primary | Change in TomEEX-Derived Extracellular Bioimpedance Indices (Not Assessed) | Originally planned at baseline and immediately after the 10-minute intervention, during one laboratory visit. Measurements were not performed. | The original ethics-approved study protocol included assessment of extracellular bioimpedance indices using the BioTekna TomEEX system, including ECR, DECW+, BEC, and DECW, as proposed indicators related to systemic inflammation. This component was omitted from the implemented study. No TomEEX assessments were performed, and no inflammation-related outcome data were collected or analyzed. |
| Secondary | Change in Heart Rate Variability (SDNN) | Baseline (5 minutes), during the 10-minute intervention, and immediately afterward (5 minutes), within one laboratory visit. | Standard deviation of normal-to-normal heart period intervals (SDNN), expressed in milliseconds, derived from emWave Pro Plus earlobe photoplethysmography recordings. Values were assessed across baseline, intervention, and immediate post-intervention periods. |
| Secondary | Change in Device-Derived Cardiac Coherence | Baseline (5 minutes), during the 10-minute intervention, and immediately afterward (5 minutes), within one laboratory visit. | Normalized cardiac coherence percentage exported by the emWave Pro Plus system. The measure describes the device-derived organization of heart rhythm oscillations during the recording and should not be interpreted as a direct measurement of vagal tone. |
| Secondary | Change in Positive Affect Score | Immediately before and immediately after the 10-minute intervention, within one laboratory visit. | Positive Affect score from the 10-item short form of the Positive and Negative Affect Schedule (PANAS). Five items are summed to yield a score ranging from 5 to 25, with higher scores indicating greater positive affect. |
| Secondary | Change in Negative Affect Score | Immediately before and immediately after the 10-minute intervention, within one laboratory visit. | Negative Affect score from the 10-item short form of the Positive and Negative Affect Schedule (PANAS). Five items are summed to yield a score ranging from 5 to 25, with higher scores indicating greater negative affect. |
Source ClinicalTrials.gov
Outcomes0
Each outcome the trial posted results for, in ClinicalTrials.gov's words.
None in this release.
Results by group0
Each measurement the trial posted, group by group, in the words and numbers it posted.
None in this release.
Participant flow0
How many started, completed or left each group, period by period.
None in this release.
Adverse events0
Each adverse event the trial posted, group by group: the participants affected out of those at risk.
None in this release.
Adverse event totals0
The totals the trial posted for each group.
None in this release.
Papers0
The papers the trial lists on ClinicalTrials.gov.
None in this release.
Grants0
The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.
None in this release.
Trial comparisons0
Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.
None in this release.
Tests0
The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.
None in this release.
Data dates
The day each source was copied for this release.
Sources 3
- ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
- ClinicalTrials.govNo license stated
- NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
- ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
- ClinicalTrials.govnone stated
- NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)
ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.
For software
Read this trial from software.
The record and each of its lists are JSON, twenty rows a page. No key.
GET https://conductscience.org/api/trials/v1/NCT07911215
GET https://conductscience.org/api/trials/v1/NCT07911215/registered