Published on in Vol 10, No 7 (2022): July

Preprints (earlier versions) of this paper are available at https://preprints.jmir.org/preprint/38077, first published .
Comparison of Accelerometry-Based Measures of Physical Activity: Retrospective Observational Data Analysis Study

Comparison of Accelerometry-Based Measures of Physical Activity: Retrospective Observational Data Analysis Study

Comparison of Accelerometry-Based Measures of Physical Activity: Retrospective Observational Data Analysis Study

Marta Karas   1 * , MS, PhD ;   John Muschelli   1 * , MS, PhD ;   Andrew Leroux   2 , MS, PhD ;   Jacek K Urbanek   3 , MEng, PhD ;   Amal A Wanigatunga   4 , MPH, PhD ;   Jiawei Bai   1 , MS, PhD ;   Ciprian M Crainiceanu   1 , MS, PhD ;   Jennifer A Schrack   3, 4 , MS, PhD

1 Department of Biostatistics, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, United States

2 Department of Biostatistics and Informatics, Colorado School of Public Health, University of Colorado, Aurora, CO, United States

3 Center on Aging and Health, Division of Geriatric Medicine and Gerontology, Department of Medicine, School of Medicine, Johns Hopkins University, Baltimore, MD, United States

4 Department of Epidemiology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, United States

*these authors contributed equally

Corresponding Author:

  • Jennifer A Schrack, MS, PhD
  • Department of Epidemiology
  • Bloomberg School of Public Health
  • Johns Hopkins University
  • 615 N Wolfe St
  • Baltimore, MD, 21205
  • United States
  • Phone: 1 410-303-1723
  • Email: jschrac1@jhu.edu