heart rate variability (HRV)
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HRV Gains Popularity but Requires Long-Term Interpretation
Heart rate variability (HRV) continues to gain traction as a recovery and readiness metric, particularly among recreational athletes. Wearables now make HRV accessible to a broad audience, often presenting it as a daily indicator of whether to train hard or recover. While the concept is grounded in physiology, experts emphasize that day-to-day fluctuations are difficult…
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