What did this study find?
Fifty-five students with anxiety completed a heart rate variability biofeedback program alongside a control group. Resting heart rate variability rose in the biofeedback group but not the control, and baseline variability predicted who benefited most. That predictive signal suggests the intervention suits some physiological profiles better than others.
What are the details of this record?
- Full citation
- Saito R, Yoshida K, Sawamura D, et al. Effects of Heart Rate Variability Biofeedback Training on Anxiety Reduction and Brain Activity. Appl Psychophysiol Biofeedback. 2024;49(4):603-617.
- Journal
- Appl Psychophysiol Biofeedback
- Authors
- Saito R, Yoshida K, Sawamura D, et al.
- Study design
- Controlled clinical study
- Sample size and population
- 55 students with anxiety
- Evidence grade
- Grade B+ on the BioReg grading scale
- Reported findings
- Resting HRV increased in the HRVBF group vs control; baseline HRV predicted who benefited most.
- DOI
- No DOI recorded
- PubMed
- PMID 38888656
- Related categories
- HRV Biofeedback (category grade B+)
A positive PEMF study is not evidence for a specific device unless the signal parameters studied, frequency, intensity, waveform, and exposure duration, are reasonably comparable to what that device produces. Where this record does not list those parameters, the source report did not publish them. See the grading methodology. Library last reviewed 2026-08-27.