Matthew S. Thiese, PhD, MSPH, is an Assistant Professor at the University of Utah’s Rocky Mountain Center for Occupational and Environmental Health, one of the 18 NIOSH-sponsored Education and Research Centers in the US. He earned his BS in Exercise and Sport Science (2001), MSPH in General Public Health (2003), and PhD in Occupational Injury Prevention (2008). Dr. Thiese’s dissertation focused on the predictive relationship on physical activity and the incidence of low back pain. This dissertation involved field measurements of workers’ on-the-job and leisure time physical activity. He has extensive experience in physical activity assessment, energy expenditure measurement, and observational research. Dr. Thiese’s primary areas of research interest are 1) transportation worker health and 2) musculoskeletal disorders. His research has included multiple field studies, including three large cohort studies and two large cross-sectional studies involving either transportation workers or musculoskeletal disorders. Dr. Thiese currently teaches three courses at the School of Medicine and is involved in multiple ongoing field research projects. Dr. Thiese has field experiences with measuring aerobic capacity and energy expenditures in both laboratory and occupational settings.