# Heart rate recovery (HRR)

How far the heart rate falls in the first minute after exercise; a marker of how quickly the nervous system settles.

Type: biomarker · Unit: bpm · Domain: Cardio-Respiratory Health · Accuracy: Measured · Importance: Supporting

Also called: HR recovery, post-exercise heart rate recovery, one-minute recovery, recovery heart rate

## In one sentence

How many beats per minute your heart rate falls in the first minute after you stop exercising, a direct reading of how quickly the nervous system's brake comes back on.

## Why it matters

When exercise stops, the vagus nerve re-engages within seconds and the heart slows; how fast it slows is a measure of that brake's strength, the same system overnight HRV reads from the other side. It is one of the oldest exercise-test numbers with outcome data behind it. In 2,428 adults referred for a treadmill test and followed for six years, a fall of 12 beats or fewer in the first minute of a walking cool-down was the cut-point Cole and colleagues chose, and the people below it had about twice the all-cause mortality of those above it after adjustment (Cole 1999). For a healthy person the useful reading is the trend: recovery speeds up with aerobic fitness and slows when you are run down.

## What moves it

Upward over months: aerobic training. Downward on a day: fatigue, a hard session the day before, heat, dehydration, being unwell, caffeine late, a session that ended at a lower effort than usual (there is less to recover from). The protocol matters more than for any other number here: Cole's cut-point was for a walking cool-down after a maximal test, and a watch that reads your recovery after an easy ride, while you sit down, is measuring a different thing. Compare only like with like.

## How to measure it well

Let the watch take it the same way every time: stop, stay upright and still or walk slowly, and do not start the next thing for a minute. If you record it by hand, note your heart rate at the last hard minute and exactly one minute after stopping.

## How Vitality Tracker uses it

Stored as one figure per day, from the device or typed in, and charted over time. It feeds no engine yet; Capacity reads the overnight readings instead. It is here so that the series exists when you want it.

## How far to trust the number

Measured: a heart rate at two moments. What varies is the protocol, so the series is only comparable with itself under the same routine.

## Method

HRR₁ = heart rate at the end of exercise − heart rate one minute later. Stored as one figure per day.

## Sources

1. Cole CR, Blackstone EH, Pashkow FJ, Snader CE, Lauer MS. Heart-rate recovery immediately after exercise as a predictor of mortality. N Engl J Med 1999;341:1351–7. [doi:10.1056/NEJM199910283411804](https://doi.org/10.1056/NEJM199910283411804).

## Related

- [Maximum heart rate and heart-rate zones](https://vitalitytracker.app/knowledge/maximum-heart-rate-and-zones)
- [Overnight heart rate variability](https://vitalitytracker.app/knowledge/overnight-hrv)
- [VO₂ max](https://vitalitytracker.app/knowledge/vo2-max)
- [Training load and Cardio Load](https://vitalitytracker.app/knowledge/training-load-and-cardio-load)

Reviewed October 2026 · v1

Source: https://vitalitytracker.app/knowledge/heart-rate-recovery