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Ernest

Ernest

Former Software Engineer

Ernest is a former Software Engineer at Terra API. Published articles explain heart rate variability, heart rate zones, and wearable measurement methods.

Ernest

About

Ernest is a former Software Engineer at Terra API. Contributions to Terra’s blog focus on heart rate and heart rate variability in the context of wearable devices.

Published topics include heart rate zones, optical and ECG measurement methods, and HRV metrics such as SDNN and RMSSD. The articles introduce these concepts to readers exploring health and fitness data.

Blog

Heart Rate Zones and Wearable Devices

9 November 2022

How to improve your HRV

2 November 2022

Measuring HRV: Optical (PPG) vs ECG/EKG

19 October 2022

Measuring HRV: SDNN and RMSSD

18 October 2022

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