Published on in Vol 26 (2024)
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/56676, first published
.
![Association of Smartwatch-Based Heart Rate and Physical Activity With Cardiorespiratory Fitness Measures in the Community: Cohort Study Association of Smartwatch-Based Heart Rate and Physical Activity With Cardiorespiratory Fitness Measures in the Community: Cohort Study](https://asset.jmir.pub/assets/c0c051bdfbc38d3910c0991faa51608e.png 480w,https://asset.jmir.pub/assets/c0c051bdfbc38d3910c0991faa51608e.png 960w,https://asset.jmir.pub/assets/c0c051bdfbc38d3910c0991faa51608e.png 1920w,https://asset.jmir.pub/assets/c0c051bdfbc38d3910c0991faa51608e.png 2500w)
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