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Normal Resting Heart Rate Appears to Vary Widely From Person to Person: Individual People's Averages

posted by Fnord666 on Monday February 17 2020, @11:11AM   Printer-friendly
from the makes-my-heart-beat-faster dept.

upstart writes in with an IRC submission for Bytram:

Normal resting heart rate appears to vary widely from person to person: Individual people's averages show long-term consistency, according to de-identified data from wearables worn by 92,457 people:

A person's normal resting heart rate is fairly consistent over time, but may vary from others' by up to 70 beats per minute, according to analysis of the largest dataset of daily resting heart rate ever collected. Giorgio Quer of the Scripps Research Translational Institute in La Jolla, California, and colleagues present these findings in the open-access journal PLOS ONE on February 5, 2020 as part of an upcoming PLOS Collection on Digital Health Technology.

A routine visit to the doctor usually involves a measurement of resting heart rate, but such measurements are rarely actionable unless they deviate significantly from a "normal" range established by population-level studies. However, wearables that track heart rate now provide the opportunity to continuously monitor heart rate over time, and identify normal resting heart rates at the individual level.

In the largest study of its kind to date, Quer and colleagues retrospectively analyzed de-identified heart rate data from wearables worn for a median of 320 days by 92,457 people from across the U.S. Nearly 33 million days' worth of heart rate data were collected in total. The researchers used the data to examine variations in resting heart rate for individuals over time, as well as between individuals with different characteristics.

The analysis showed that one person's mean daily resting heart rate may differ by up to 70 beats per minute from another person's normal rate. Taken together, age, sex, body mass index (BMI), and average daily sleep duration accounted for less than 10 percent of the observed variation between individuals.

Journal Reference:
Giorgio Quer, Pishoy Gouda, Michael Galarnyk, Eric J. Topol, Steven R. Steinhubl. Inter- and intraindividual variability in daily resting heart rate and its associations with age, sex, sleep, BMI, and time of year: Retrospective, longitudinal cohort study of 92,457 adults. PLOS ONE, 2020; 15 (2): e0227709 DOI: 10.1371/journal.pone.0227709

Original Submission

 
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  • (Score: 5, Informative) by JoeMerchant on Monday February 17 2020, @02:22PM

    by JoeMerchant (3937) on Monday February 17 2020, @02:22PM (#959162)

    The legend of Miguel Indurain included a resting heart rate in the 20s BPM. World champion cyclist, freak of nature, but you wouldn't call him "unhealthy."

    His blood took 7 litres of oxygen around his body per minute, compared to 3–4 litres for an ordinary person and 5–6 litres for fellow riders. His cardiac output was 50 litres a minute; a fit amateur cyclist's is about 25 litres. Induráin's lung capacity was 7.8 litres, compared to an average of 6 litres.[4] His resting pulse was as low as 28 BPM, compared to an average 60–72 bpm, which meant his heart would be less strained in the tough mountain stages.[34][17] His VO2 max was 88 ml/kg/min; in comparison, Lance Armstrong's was 83.8 ml/kg/min and Greg LeMond's was more than 92 ml/kg/min.

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