Accuracy of the Apple Watch Series 9 for Measures of Energy Expenditure and Heart Rate at Rest and During Exercise: Impact of Skin Pigmentation
Sydney E. Chase, Rebecca G. Liddell, Chloe L. McGonagle, Stephen J. Ives · 2024
Read Accuracy of the Apple Watch Series 9 for Measures of Energy Expenditure and Heart Rate at Rest and During Exercise: Impact of Skin Pigmentation by Sydney E. Chase, Rebecca G. Liddell, Chloe L. McGonagle, Stephen J. Ives (2024) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-11678767.txt.
Description
Sydney Chase and three co-authors tested how well an Apple Watch Series 9 reads energy use and heart rate, and whether skin tone changes the result, published in two thousand twenty-four. Thirty young, healthy adults were grouped by a standard skin tone scale. Each walked a ten-minute treadmill routine at mixed speeds and slopes while wearing the watch, a lab breathing mask setup, and a chest strap.
Energy use readings missed the lab values in every group. Heart rate readings drifted more for darker skin than for lighter skin, and drift grew and shrank with effort level. The authors warn that watch numbers should not be taken as exact, least of all for users with dark skin.
Catalog record
| CREATOR | Sydney E. Chase, Rebecca G. Liddell, Chloe L. McGonagle, Stephen J. Ives |
|---|---|
| YEAR | 2024 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 31 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |