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This paper is in the following e-collection/theme issue:

Formative Evaluation of Digital Health Interventions (5426) Mobile Health (mhealth) (5325) Wearable Devices and Sensors (1670) Novel Sensors and Data Acquisition Methods in Cardiology (272)

Published on in Vol 10 (2026)

Preprints (earlier versions) of this paper are available at https://preprints.jmir.org/preprint/85253, first published .
Smartwatch displays SpO2 98% with declining trend graph.

Performance of Wearable Pulse Oximetry During Controlled Hypoxia Induction: Instrument Validation Study

Performance of Wearable Pulse Oximetry During Controlled Hypoxia Induction: Instrument Validation Study

Authors of this article:

Yihang Jiang1 Author Orcid Image ;   Connor Spies2 Author Orcid Image ;   Ali R Roghanizad1 Author Orcid Image ;   Will Ke Wang1 Author Orcid Image ;   Satasuk Joy Bhosai2, 3 Author Orcid Image ;   Laurie Snyder2, 3 Author Orcid Image ;   Ashley Burke4 Author Orcid Image ;   David MacLeod4 Author Orcid Image ;   Jessilyn Dunn1, 5 Author Orcid Image
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Journals

  1. Nourizadeh M, Rostami S, Tehrani I, Jahanshahi K, Begin J, Shadgan B. Evaluating Continuous SpO2 as a Lactate-Threshold Marker: Implications for Wearable Sports-Monitoring Systems. Signals 2026;7(5):103 View