Your longevity numbers at 39
The heart rate, fitness, sleep and protein numbers that matter at 39, worked out from the same sourced formulas as our free tools. Treat them as a starting point, then make them yours with the calculators.
Max heart rate and Zone 2 at 39
Estimated maximum heart rate: 181 bpm (208 − 0.7 × 39). Zone 2 by the simple method, 60–70% of that: 108–126 bpm.
With your resting heart rate, the heart-rate-reserve method gives a more personal Zone 2:
| Resting HR | Zone 2 |
|---|---|
| 50 bpm | 128–141 bpm |
| 60 bpm | 132–144 bpm |
| 70 bpm | 136–147 bpm |
All five heart rate zones at 39
| Zone | Range |
|---|---|
| 1 · Very easy | 90–108 bpm |
| 2 · Easy (Zone 2) | 108–126 bpm |
| 3 · Moderate | 126–145 bpm |
| 4 · Hard | 145–163 bpm |
| 5 · Maximum | 163–181 bpm |
VO2max at 39: what is typical
These are the FRIEND registry percentiles for ages 30–39, from treadmill tests in healthy adults (ml/kg/min).
| 25th | 50th (median) | 75th | 95th | |
|---|---|---|---|---|
| Female | 25.3 | 30.2 | 36.1 | 45.8 |
| Male | 35.9 | 42.4 | 49.2 | 59.8 |
Across the next decade the median drops from 42.4 to 37.8 for men and from 30.2 to 26.7 for women. Training is how you stay ahead of that curve.
Sleep at 39
The National Sleep Foundation recommends 7–9 hours a night for adults aged 26 to 64.
Movement targets at 39
WHO recommends 150–300 minutes of moderate activity a week, or 75–150 vigorous, or a mix, plus muscle-strengthening on 2 or more days.
Protein at 39
For someone who trains regularly and wants to keep their muscle, our protein calculator gives:
| Body weight | Per day | Per meal |
|---|---|---|
| 60 kg | 85–110 g | ≈ 25 g |
| 70 kg | 100–125 g | ≈ 30 g |
| 80 kg | 110–145 g | ≈ 30 g |
| 90 kg | 125–160 g | ≈ 35 g |
Questions people ask
What is a good Zone 2 heart rate for a 39-year-old?
About 108–126 bpm by the simple method: 60–70% of an estimated maximum of 181 bpm (208 − 0.7 × age). With a resting heart rate of 60, the heart-rate-reserve method gives 132–144 bpm. The talk test is the check: full sentences, but you would rather not sing.
What is the maximum heart rate for a 39-year-old?
About 181 bpm from the Tanaka formula, 208 − 0.7 × age. It is an average for the age: individual maximums often sit well above or below it, so a measured value is better when you have one.
What is a good VO2max at 39?
In the FRIEND registry of treadmill tests, the median for ages 30–39 is 42.4 ml/kg/min for men and 30.2 for women. The 25th to 75th percentile runs from 35.9 to 49.2 for men and from 25.3 to 36.1 for women.
Sources
- Tanaka H, Monahan KD, Seals DR. Age-predicted maximal heart rate revisited. J Am Coll Cardiol. 2001;37(1):153–156.
- Karvonen MJ, Kentala E, Mustala O. Ann Med Exp Biol Fenn. 1957;35(3):307–315.
- Kaminsky LA et al. Mayo Clin Proc. 2015;90(11):1515–1523. Table 3, FRIEND registry.
- Hirshkowitz M, Whiton K, Albert SM, et al. National Sleep Foundation's sleep time duration recommendations: methodology and results summary. Sleep Health. 2015;1(1):40–43.
- Bull FC, Al-Ansari SS, Biddle S, et al. World Health Organization 2020 guidelines on physical activity and sedentary behaviour. Br J Sports Med. 2020;54(24):1451–1462. doi:10.1136/bjsports-2020-102955
- Jäger R et al. ISSN Position Stand: protein and exercise. J Int Soc Sports Nutr. 2017;14:20.
- Morton RW et al. Br J Sports Med. 2018;52(6):376–384.
- Bauer J et al. PROT-AGE Study Group. J Am Med Dir Assoc. 2013;14(8):542–559.