# Age rank

Age rank compares your sleep, steps, training, resting heart rate and VO2 max to published norms for adults your age and sex.

Population surveys such as CDC and NHANES, plus the FRIEND registry for cardiorespiratory fitness, provide percentile bands by age. Heart rate variability is usually judged against your own baseline instead. revns shows age rank on the Rank page after you log several weeks of data.

Also called: Fitness for your age.

Related: [VO2 max](https://revns.com/dictionary/vo2-max.md), [Resting heart rate](https://revns.com/dictionary/resting-heart-rate.md), [Steps per day](https://revns.com/dictionary/steps-per-day.md), [HRV](https://revns.com/dictionary/hrv.md)

---

Canonical: https://revns.com/dictionary/age-rank
Index of everything: https://revns.com/llms.txt
revns gives training guidance, not medical advice.