IEEE 1752.1 and Open mHealth, explained
A plain guide for data engineers and research data managers to the open standard for mobile health data. Sources checked 5 November 2026.
What IEEE 1752.1-2021 defines
IEEE 1752.1-2021, the IEEE Standard for Open Mobile Health Data, standardizes how to represent metadata, sleep and physical-activity measures, and subjective reports such as surveys. It was published on 16 September 2021 and is listed as active (IEEE 1752.1-2021).
How Open mHealth relates
Open mHealth publishes open schemas under the Apache-2.0 license. Its repository marks its earlier sleep schemas as superseded by the IEEE 1752.1 sleep schemas (Open mHealth schemas repository). For clinical data systems, a community mapping from Open mHealth to FHIR also exists (Open mHealth to FHIR mapping).
Where HRV sits
The 2021 standard covers sleep, physical activity and metadata. The Open mHealth repository landing page does not list an HRV schema. Until a standard representation exists, record HRV with its measure, window, device and algorithm version, as ATS-1 requires.
How ATS-1 maps to it
| ATS-1 item | Where it goes |
|---|---|
| Sleep duration, onset, offset, midpoint | IEEE 1752.1 sleep measures |
| Activity and energy expenditure | IEEE 1752.1 physical-activity measures, with energy shown as a ±20% band |
| Device, firmware, algorithm version, timezone | IEEE 1752.1 metadata |
| WHO-5 and experience-sampling answers | Subjective reports |
| Nightly lnRMSSD | Recorded with full provenance; no 1752.1 representation is claimed |
What ATS-1 does and does not claim
- ATS-1 requires Plane I exports to map to IEEE 1752.1-2021
- ATS-1 does not replace these schemas, and its conformance levels are ANTRL's own, not IEEE's
- P1752.2 is a project in development and must not be cited as a standard
Questions
Does using IEEE 1752.1 make a product conform to ATS-1?
No. Schema mapping is one Level 1 item. Conformance also covers provenance, sampling rules and claim wording.
Sources
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What IEEE 1752.1-2021 standardizes, how Open mHealth schemas relate to it, where HRV sits, and how ATS-1 maps Plane I data to it.