RLX Training

Heart Rate Variability (HRV)

A normal heart beats 60 to 80 times a minute at rest.  The time between the beats is measured in milliseconds and it always varies. This is called Heart Rate Variability (HRV). Our technology is able to measures this extremely small time interval.

When you breathe in, your heart rate increases. When you breathe out, your heart rate slows down. 

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© 2019 iChoice

ChoiceMMed America Corp. supplies 75% of the fingertip pulse oximeters sold in the US market. Our fingertip pulse oximeters are used by hospitals, medical personnel and are sold in national, regional and independent pharmacies. Our oximeters are sold under the ChoiceMMed brand or private labeled with our customers’ brand names. 


iChoice has continually created a diverse range of leading product lines for home healthcare customers, and has always focused on innovative and affordable product solutions. 



Representatives are available Mon-Fri 10am-4pm EST


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