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Randomised trial, 2023

Does a smartphone app for heart rate variability biofeedback reduce premenstrual and depressive symptoms?

Yes, the app reduced premenstrual, depressive, and stress symptoms over 4 weeks. However, it did not change the underlying heart rate patterns it was designed to improve.

Early or limited evidence 27 participants with above-average premenstrual or depressive symptoms

What they did

Pilot study with 27 participants with above-average premenstrual or depressive symptoms. Some used a smartphone app for heart rate variability biofeedback for 4 weeks; others waited on a waitlist. Researchers measured heart rate variability, attention control, depression, stress/anxiety, and premenstrual symptoms before and after the 4-week period.

What they found

The app group showed improvements in premenstrual symptoms, depressive symptoms, and stress/anxiety symptoms over the 4 weeks. They also improved on executive functioning tests. The waitlist group did not improve. However, the measurement of heart rate variability that the app was designed to train did not actually improve, nor did scores for noticing new information.

What it means for you

The app may help people feel better, but it did not change the underlying heart rhythm patterns it was designed to train. This is a small pilot study, so results need confirmation in larger studies.

27

participants

4 weeks

intervention duration

About the study

Original title
Smartphone-based heart rate variability biofeedback training improves premenstrual and depressive symptoms as well as anxiety/stress symptoms and attentional executive control: a pilot study
Authors
Berenike Lisa Blaser, Mathias Weymar, Julia Wendt
Year
2023
Study design
Randomised trial
Participants
40
What was tested
4-week smartphone heart rate variability biofeedback app
Open access
Yes

Topics