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 to interpret in isolation.
Longer-term trends provide more meaningful insight than single readings. Changes in sleep, stress, hydration and training load all influence HRV, making it a composite signal rather than a direct measure of readiness. For coaches, this reinforces the need to use HRV as one data point among many, rather than a decision-making tool on its own. When applied appropriately, it can support programming decisions, but it does not replace coaching judgment
