Kinesiology
UW-Madison School of Education

Jeffer Sasaki

Assistant Professor

jesasaki@wisc.edu


253B Bardeen Medical Laboratories

1300 University Ave

Madison, WI 53706

Sasaki, Jeffer

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Dr. Jeffer Sasaki is an Assistant Professor in the Department of Kinesiology at the University of Wisconsin–Madison. His research focuses on the validation and application of device-based methods to assess free-living physical behaviors—such as physical activity, sedentary behavior, and sleep—and their associations with health outcomes across diverse populations. He is also dedicated to exploring technology-driven strategies to promote positive behavior changes and improve health at the population level.
Dr. Sasaki earned his Ph.D. in Kinesiology from the University of Massachusetts Amherst and completed his postdoctoral training at the University of Alabama at Birmingham. From 2020 to 2024, he served as one of the Editors-in-Chief of the Brazilian Journal of Physical Activity and Health. He also played a key role in developing the Physical Activity Guidelines for the Brazilian Population, contributing his expertise to national public health initiatives.
Through his work, Dr. Sasaki aims to bridge the gap between research and real-world application, with the ultimate goal of advancing health equity and improving quality of life through evidence-based movement science.

Education

  • Post-Doctoral Fellowship National Multiple Sclerosis Society Physical Therapy, University of Alabama at Birmingham, 2018
  • Post-Doctoral Scholar Physical Education, Universidade Federal do Triângulo Mineiro, 2015
  • PhD Kinesiology, University of Massachusetts Amherst, 2014
  • MS Physical Education, Universidade Federal do Paraná, 2007
  • BS Physical Education , Universidade Federal do Paraná, 2005

Select Publications

  • Machado, E., Glehn, F., Sasaki, J., Tauil, C., & De David, A. (2024). Depression and sedentary behaviour in women with multiple sclerosis. Multiple Sclerosis and Related Disorders, 91, 105895.
  • Galvão, L. L., Silva, R. R., Tribess, S., Meneguci, J., Sasaki, J., Santos, D. D., & Júnior, J. S. (2023). Associations of Physical Activity and Sedentary Behavior With Survival Time in Older Adults: Path Analysis. Journal of Aging and Physical Activity, 31(5), 733-742.
  • Sasaki, J., Bertochi, G. F., Meneguci, J., & Motl, R. W. (2022). Pedometers and Accelerometers in Multiple Sclerosis: Current and New Applications. International Journal of Environmental Research and Public Health, 19(18), 11839.
  • Sasaki, J., Motl, R. W., & McAuley, E. (2019). Validity of the Marshall sitting questionnaire in people with multiple sclerosis.. J Sports Sci, 37, 1250-1256.
  • Sasaki, J., Motl, R. W., Cutter, G., Marrie, R. A., Tyry, T., & Salter, A. (2018). National estimates of self-reported sitting time in adults with multiple sclerosis. Mult Scler J Exp Transl Clin, 19(4), 1.
  • Sasaki, J., Júnior, J. H., Meneguci, J., Tribess, S., Marocolo Júnior, M., Stabelini Neto, A., & Virtuoso Júnior, J. S. (2018). Number of days required for reliably estimating physical activity and sedentary behaviour from accelerometer data in older adults.. J Sports Sc, 36(14), 1572-1577.
  • Sasaki, J., Sandroff, B., Bamman, M., & Bamman, R. W. (2017). Motion sensors in multiple sclerosis: narrative review and update of Applications.. Expert Rev Med Devices, 14(11), 891-900.
  • Sasaki, J., Hickey, A., Staudenmayer, J., John, D., Kent-Braun, J., & Freedson, P. S. (2016). Performance of accelerometer-based activity classification algorithms in free-living older adults.. Med Sci Sports Exerc, 48, 941-950.
  • Sasaki, J., Mavilia, M., Tedesco, J., John, D., Kozey-Keadle, S., & Freedson, P. S. (2015). Validation of the Fitbit wireless activity tracker for prediction of energy expenditure.. J Phys Act Health, 12(2), 149-154.
  • Sasaki, J., John, D., & Freedson, P. S. (2011). Validation and comparison of ActiGraph activity monitors. J Sci Med Sports, 14(5), 411-416.