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What is heart rate variability (HRV)?

Oura reports that heart rate variability (HRV) measures the variation in heartbeat timing, reflecting stress levels and ...
Medscape

Is A1c Variability a Useful Measure in Diabetes?

Most patients (56%) had low A1c variability (0%-0.49% per quarter), and about one third had moderate variability (0.5%-1%). The lowest risk for the outcomes of MI ...
Wareable

How to use Garmin’s HRV Status to master your readiness

Heart rate variability has become the cornerstone of recovery-focused metrics on top sports watches, but Garmin’s ‘HRV Status’ takes it a step further. Once you get to grips with how HRV Status works, ...
BMJ

P-93 Relationship between global positioning system derived measures and heart rate variability after two weeks of training in professional soccer

In spite of demonstrating training loads objectively through player tracking system and Global Positioning System (GPS) technologies, a precise and reliable monitoring tool which can detect the risk ...
Business Insider

What is heart rate variability? How to measure HRV and what it means

Heart rate variability offers a closer look at how your heart behaves from one beat to the next. While heart rate measures the average number of beats per minute, heart rate variability bases a ...