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All day / continuous HRV data

‎10-25-2021 00:31

‎10-25-2021 00:31

Hi,

I just went through this "Heart rate variability with photoplethysmography in 8 million individuals: a cross-sectional study" available on https://www.thelancet.com/journals/landig/article/PIIS2589-7500(20)30246-6/fulltext 

We are currently working on a similar study, for now we are still comparing wearable products specifications and we are wondering how it was possible to conduct this study when it looks like Fitbit can provide nightly HRV data only.

Does anyone knows how we can trigger daily HRV? Is there any possible development through Device API that can provide such information? Are HRV raw data available (like on Apple products)?

Any suggestion is more than welcome.

 

Thanks all for your consideration and help 🙂

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