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HRV: A Valuable Biomarker
Heart rate variability (HRV) is accepted as a non-invasive marker of autonomic nervous system (ANS) function. Even at a steady heart rate, there are small differences between beats; for example, the difference in time between successive beats, although measured in milliseconds, has broad physiological relevance, predictive for both specific disease morbidity and overall mortality. Not…
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Beetroot & HRV
The effects of a beetroot extract on heart rate variability (HRV) recovery following strength-based exercises were recently assessed in 12 healthy adult males via a randomized double-blind and placebo-controlled trial. Participants received either placebo or 600 mg beetroot extract, followed by 2 hours of rest to allow for digestion/absorption. Four sets of each strength-based exercise…