BOLT Score Test (Breath Hold)
The comfortable breath-hold measure used in breathing retraining — protocol, score and what it claims.
BOLT measures sensitivity to CO₂ build-up, not lung size — the first involuntary swallow or diaphragm twitch ends the test, and pushing to maximum invalidates it. It comes from the Buteyko tradition; the firm evidence is for asthma-symptom reduction with breathing retraining, while broader performance claims remain mostly anecdotal. As a free trackable habit metric for nasal-breathing practice, it's harmless and motivating.
Formula
For general information only — not medical advice, a diagnosis or a treatment plan. Consult a qualified healthcare professional before making health, diet, medication or exercise decisions.
The comfortable breath-hold measure used in breathing retraining — protocol, score and what it claims. The BOLT Score Test (Breath Hold) is a free, private bolt score tool — every result computes instantly in your browser with no sign-up and no data upload.
About BOLT Score Test (Breath Hold)
BOLT measures sensitivity to CO₂ build-up, not lung size — the first involuntary swallow or diaphragm twitch ends the test, and pushing to maximum invalidates it. It applies normal exhale → hold → seconds until the first definite urge (not maximum hold). Use the BOLT Score Test (Breath Hold) 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 BOLT Score Test (Breath Hold)
- 1Enter your details in the BOLT Score Test (Breath Hold) 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 BOLT Score Test (Breath Hold)?
- ✓Instant bolt score 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 (Bruton A & Lewith GT, Complement Ther Med 2005 — Buteyko review)
- ✓Free forever with no sign-up, account or app install
Frequently asked questions
How does the BOLT Score Test (Breath Hold) work?+
BOLT measures sensitivity to CO₂ build-up, not lung size — the first involuntary swallow or diaphragm twitch ends the test, and pushing to maximum invalidates it. The calculation uses the formula: normal exhale → hold → seconds until the first definite urge (not maximum hold). Everything runs instantly in your browser as you type — your inputs are never uploaded.
Is the BOLT Score Test (Breath Hold) accurate, and what is it based on?+
The method is traceable to authoritative sources, including Bruton A & Lewith GT, Complement Ther Med 2005 — Buteyko review; McKeown P — The Oxygen Advantage (BOLT protocol). Results are estimates — individual variation always applies, so treat the output as a well-grounded starting point.
Is the BOLT Score Test (Breath Hold) 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 information only and is not medical advice. Always consult a qualified healthcare professional before making health decisions.
What can I use the BOLT Score Test (Breath Hold) for?+
It's commonly used for bolt score, breath hold test, buteyko. The comfortable breath-hold measure used in breathing retraining — protocol, score and what it claims.
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