Published on in Vol 27 (2025)

Preprints (earlier versions) of this paper are available at https://preprints.jmir.org/preprint/66231, first published .
Sex Differences in the Variability of Physical Activity Measurements Across Multiple Timescales Recorded by a Wearable Device: Observational Retrospective Cohort Study

Sex Differences in the Variability of Physical Activity Measurements Across Multiple Timescales Recorded by a Wearable Device: Observational Retrospective Cohort Study

Sex Differences in the Variability of Physical Activity Measurements Across Multiple Timescales Recorded by a Wearable Device: Observational Retrospective Cohort Study

Kristin J Varner   1 , MS ;   Lauryn Keeler Bruce   2, 3 , MS, PhD ;   Severine Soltani   3 , BS ;   Wendy Hartogensis   4 , MPH, PhD ;   Stephan Dilchert   5 , PhD ;   Frederick M Hecht   4 , MD ;   Anoushka Chowdhary   4 , BS ;   Leena Pandya   4 , PhD ;   Subhasis Dasgupta   6 , PhD ;   Ilkay Altintas   6, 7 , PhD ;   Amarnath Gupta   6, 7 , PhD ;   Ashley E Mason   4 * , PhD ;   Benjamin L Smarr   1, 7 * , PhD

1 Shu Chien-Gene Lay Department of Bioengineering, University of California San Diego, La Jolla, CA, United States

2 UC San Diego Health Department of Biomedical Informatics, University of California San Diego, La Jolla, CA, United States

3 Department of Bioinformatics and Systems Biology, University of California San Diego, La Jolla, CA, United States

4 Osher Center for Integrative Health, University of California San Francisco, San Francisco, CA, United States

5 Department of Management, Zicklin School of Business, Baruch College, The City University of New York, New York, NY, United States

6 San Diego Supercomputer Center, University of California San Diego, La Jolla, CA, United States

7 Halıcıoğlu Data Science Institute, University of California San Diego, La Jolla, CA, United States

*these authors contributed equally

Corresponding Author:

  • Benjamin L Smarr, PhD
  • Halıcıoğlu Data Science Institute
  • University of California San Diego
  • 3234 Matthews Ln
  • La Jolla, CA 92093
  • United States
  • Phone: 1 (858) 822 4536
  • Email: bsmarr@ucsd.edu