SelfSync

HRV message

HRV messages store the times between heartbeats (R-R intervals) recorded during an activity, when heart rate variability logging is enabled.

FIT name
hrv
Global message number
78
JavaScript SDK key
hrvMesgs
Fields
2

Fields

  • timeFloat64[]s

    Times between consecutive beats.

  • mesgNumString

    Global message number identifying the kind of message. Decoders use it to know which profile to apply to the data.

Other health and monitoring messages

See all the FIT messages