21:20 Jan 7, 2018 |
English language (monolingual) [Non-PRO] Medical - Medical (general) | |||||||
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| Selected response from: Oliver Simões United States Local time: 07:46 | ||||||
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4 +2 | heart rate variability |
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heart rate variability Explanation: "Heart rate variability (HRV) is the physiological phenomenon of variation in the time interval between heartbeats. It is measured by the variation in the beat-to-beat interval." I found about 1,990,000 results for "heart rate variability" and only 52,000 for "heart rate fluctuation" in Google Search. Definitely, variability is more popular. https://www.google.com/search?q=%22heart+rate+variability%22&oq=%22heart+rate+variability%22&aqs=chrome..69i57j0l5.6311j0j7&sourceid=chrome& |
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