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. 2024 Oct 4;24(19):6442. doi: 10.3390/s24196442

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© 2024 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Integrated activity, gait, and vital-sign monitoring from a single ear-worn wearable. Exemplary activity [16] and gait classification output (temporal and spatial mEar) alongside vital-sign parameters (body temperature, pulse rate, and oxygen saturation) derived from a person standing and walking outdoors (first walking bout: stride time 1.1 s, stride length 122.5 cm; second walking bout: 0.9 s, stride length 142 cm). Abbreviations: bpm: beats per minute; acc: acceleration; ML: medio-lateral axis; AP: anterior–posterior axis; IF: inferior–superior axis; HAR: human activity recognition; IC: initial contact; FC: final contact.