How to get beat-to-beat measurements's BPM

Using HKHeartbeatSeriesQuery, I am able to get beat-to-beat timestamps. How to get the BPM for those timestamps?


I am able to see the BPM in apple health app.

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veluloganathan
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The timestamps represent individual beats, so there isn't really a particular BPM associated with them. If you want the implied BPM by the delta from the previous beat, then you can simply use that timestamp difference to do the calculation yourself. More likely, you'd want to average over some duration or some number of beats to compute a value that changes more smoothly.
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Frameworks Engineer
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  • Are we able to access the individual beats live? Or can we only access them in a post-fact kind of way, to do analysis etc. I'd like to access the individual beats of the last 2-5 minutes in order to calculate RMSSD directly on the intervals. Is that doable?

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    MrMarch
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The timestamps represent individual beats, so there isn't really a particular BPM associated with them. If you want the implied BPM by the delta from the previous beat, then you can simply use that timestamp difference to do the calculation yourself. More likely, you'd want to average over some duration or some number of beats to compute a value that changes more smoothly.
Posted by
Frameworks Engineer
Up vote reply of Frameworks Engineer Down vote reply of Frameworks Engineer
Post marked as solved

  • Are we able to access the individual beats live? Or can we only access them in a post-fact kind of way, to do analysis etc. I'd like to access the individual beats of the last 2-5 minutes in order to calculate RMSSD directly on the intervals. Is that doable?

    —
    MrMarch
Add a Comment