30 days of Heart Rate Variability (HRV) Biofeedback

As calm as I can be

What’s biofeedback exactly?

Morning (or night) measurements of HRV vs biofeedback: what’s the difference?

The HRV4Biofeedback app. Learn more, here

The science

Resonant frequency

Resonant frequency test in HRV4Biofeedback. Learn more, here

Building a habit

In January 2021 I went from 5-10 minutes per day of practice a few times per week to a daily 15–40 minutes of practice. While still far from the original protocol, this seems to be a reasonable ‘dose’

The data: acute vs chronic changes

A good session
Baseline trending quite a bit higher than my normal. Biofeedback effect?

Write up

Founder HRV4Training.com, Data Science @ouraring Lecturer @VUamsterdam. PhD in Machine Learning, 2x MSc: Sport Science, Computer Science Engineering. Runner