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Sarah Keadle, PhD, MPH

Research Interests 


My research focuses on how different physical activities (e.g. exercise) and sedentary behaviors relate to chronic disease prevention. I conduct both observational studies to examine the link between these behaviors and health outcomes and intervention studies designed to reduce sitting and increase physical activity. I also have ongoing studies to determine how to accurately measure physical activity and sitting time using wearable sensors and previous day recalls.

Educational Background


Ph.D. Kinesiology, MPH Quantitative Methods

Current Projects


  • Activity Monitor Validation Study
  • Measuring the energy cost of driving
  • Validation of the ACT24, a mobile previous day recall tool

Publication Highlights


  1. Keadle SK, Kravitz ES, Matthews CE, Tseng M, Carroll RJ. Development and Testing of an Integrated Score for Physical Behaviors. Med Sci Sports Exerc. 2019 Feb 26. doi: 10.1249/MSS.0000000000001955. [Epub ahead of print] PubMed PMID: 30817711.
  2. Matthews CE, Keadle SK, Saint-Maurice PF, Moore SC, Willis EA, Sampson JN, Berrigan D. Use of Time and Energy on Exercise, Prolonged TV Viewing, and Work Days. Am J Prev Med. 2018; 55(3):e61-e69. PMID: 30031635
  3. Keadle SK, Conroy DE, Buman MP, Dunstan DW, and Matthews CE. Targeting Reductions in Sitting to Increase Physical Activity and Improve Health. Med Sci Sport Exer. 2017 Mar 8. doi: 10.1249/MSS.0000000000001257.
  4. Keadle SK, Moore SC, Sampson JN, Xiao Q, Albanes D, Matthews, CE. Causes of death associated with prolonged television viewing. Am J Prev Med. 2015:49(6): p811–21. PMID: 26215832.
  5. Keadle SK, Matthews, CE, Arem H, Sampson J. Changes in television viewing and subsequent risk of mortality: NIH-AARP Diet and Health Study. Int J Beh Nutr Phys Act. 2015:12:156. PMID: 26678502.

Complete List of Published Work Can be Viewed Here

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