·6 min read
HRV vs resting heart rate: a simple decision rule for hard training days
A practical guide for serious athletes using Garmin recovery signals and Strava load context to decide when to push, hold, or switch sessions.
If your Garmin HRV dips but resting heart rate looks normal, most athletes guess. Better rule: decide from trend + training context, not one morning value.
Use this simple model: green day when HRV is stable over 7 days and resting HR is within baseline; yellow day when one metric drifts; red day when both drift and your last 72h Strava load was high.
Practical example: planned threshold session on a yellow day? Keep quality but cut total intervals by 20%. Planned intervals on a red day? Switch to Zone 2 and protect consistency.
At SportPlan, we treat HRV and resting HR as execution signals. The goal is not to avoid hard training — it's to place it where adaptation is highest.
Recommended reads and actions
- Start my plan and see my first week
- Start my plan — data-driven planning
- Read: Sleep, recovery and Garmin Body Battery for endurance athletes
- Read: Overtraining prevention with Garmin HRV and training load
- Read: Garmin Training Status, VO2max trend and Training Readiness explained
- Read: Deload week rules for serious endurance athletes
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