Difference between revisions of "HRV (Heart Rate Variability)"

Latest revision as of 18:48, 3 October 2022

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Heart rate tracking

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+#REDIRECT [[Heart rate tracking]]
-===HRV is defined as the changes in the time interval between successive heartbeats. ===
-===People are interested in HRV primarily because it is controlled by the autonomic nervous system (ANS), which also regulates heart rate and blood pressure. The two components of the ANS, the sympathetic and the parasympathetic nervous system, both influence HRV. This means that HRV can potentially provide useful information about questions pertaining to our overall nervous system, including information about stress, rest, recovery, and immune response.===
-===How is HRV Measured===
-Since HRV measures the change over time of the interval between heart beats, there are many options available for producing a value relevant to a specific question. The heartbeat itself is not instantaneous, of course, but for the purpose of HRV measurement, the time is measured between ECG peaks known as R-R intervals. However, many people have irregular heartbeats, and so HRV is better calculated using NN intervals; that is, the time between ECG peaks when the heart is in a normal rhythm. Four common ways of determining HRV values, with their commonly used associations, are:
-*Standard Deviation of NN-Interval (SDNN)
-**Risk of mortality in cardiac patients
-*Standard Deviation of 5-minute averages of NN-Interval (SDANN)
-**Predominant circadian rhythm
-*The Root Mean Square of Successive NN-Interval Differences (rMSSD)
-**Vagal modulation of heart rate.
-*The Percentage of NN-Intervals that Are Greater than 50ms Different than Prior NN-Interval (pNN50)
-Any instrument that reliably provides continuous heart rate data can be used as a basis for calculating HRV. Of course not all instruments are equally reliable and convenient, but the suitability for HRV is determined both by the instrument quality and by the situation of measurement. Less precise instruments can be used when the measurement context is well controlled.
-===Tools===
-*Apple Watch
-*Fitbit
-*Oura Ring
-*Garmin
-*Polar
-*HRV4Training
-*
-{| class="wikitable"
-|Company
-|Model or Series
-|Release Date
-|Metrics
-|Sensor
-|In Production?
-|-
-|Apple
-|Watch
-|
-|
-|
-|
-|-
-|Fitbit
-|Sense
-|
-|
-|
-|
-|-
-|Fitbit
-|Versa
-|
-|
-|Optical heart rate monitor
-|
-|-
-|Fitbit
-|Charge
-|
-|
-|
-|
-|}
-*
-===Projects===
-*Paul LaFontaine: “We never fight on Wednesdays”
-===People===
-*Andrew Ahn
-*Marco Altini
-===References===

Difference between revisions of "HRV (Heart Rate Variability)"

Latest revision as of 18:48, 3 October 2022

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