Orthostatic Heart Rate Test
Lying-to-standing HR jump as a recovery/readiness check — the oldest wearable metric, no wearable needed.
Rusko used this with cross-country skiers decades before HRV apps: a rise 10+ bpm above *your own* baseline correlates with accumulated fatigue. Measure on waking under identical conditions. The clinical cousin is real — a sustained 30+ bpm jump with symptoms is the POTS criterion and belongs with a physician, not a training plan.
Formula
For general information only — not medical or training advice. Estimates vary between individuals; consult a qualified professional before changing your exercise or nutrition routine.
Lying-to-standing HR jump as a recovery/readiness check — the oldest wearable metric, no wearable needed. The Orthostatic Heart Rate Test is a free, private orthostatic heart rate tool — every result computes instantly in your browser with no sign-up and no data upload.
About Orthostatic Heart Rate Test
Rusko used this with cross-country skiers decades before HRV apps: a rise 10+ bpm above *your own* baseline correlates with accumulated fatigue. It applies rise = standing HR (≈60 s) − supine HR (5 min rest). Use the Orthostatic Heart Rate Test to get an instant, clearly-explained result with the working shown step by step — free, private and with the source method cited.
How to use Orthostatic Heart Rate Test
- 1Enter your details in the Orthostatic Heart Rate Test input fields above.
- 2The result updates instantly with the working and reference bands shown.
- 3Adjust any value to explore how it changes the outcome — it's free and unlimited.
Why use Orthostatic Heart Rate Test?
- ✓Instant orthostatic heart rate result that recomputes as you type — no waiting, no page reloads
- ✓100% client-side: your health data never leaves your browser
- ✓Shows the actual formula and your numbers substituted in, so you can see exactly how the result is reached
- ✓Based on published, citable sources (Rusko H et al. — orthostatic test in athlete monitoring)
- ✓Free forever with no sign-up, account or app install
Frequently asked questions
How does the Orthostatic Heart Rate Test work?+
Rusko used this with cross-country skiers decades before HRV apps: a rise 10+ bpm above *your own* baseline correlates with accumulated fatigue. The calculation uses the formula: rise = standing HR (≈60 s) − supine HR (5 min rest). Everything runs instantly in your browser as you type — your inputs are never uploaded.
Is the Orthostatic Heart Rate Test accurate, and what is it based on?+
The method is traceable to authoritative sources, including Rusko H et al. — orthostatic test in athlete monitoring; Raj SR, Circulation 2013 — postural tachycardia syndrome. Results are estimates — individual variation always applies, so treat the output as a well-grounded starting point.
Is the Orthostatic Heart Rate Test free and private?+
Yes. It's completely free with no sign-up, and all computation happens locally in your browser, so none of your health data ever leaves your device.
Can I use this for medical decisions?+
This tool is for general fitness information only, not medical or training advice. Consult a professional before changing your routine.
What can I use the Orthostatic Heart Rate Test for?+
It's commonly used for orthostatic heart rate, readiness test, overtraining heart rate. Lying-to-standing HR jump as a recovery/readiness check — the oldest wearable metric, no wearable needed.
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