Stephanie Kliethermes, PhD

Associate Research Professor
(608) 262-7800

1685 Highland Avenue
Room 6171
Madison, WI 53705-2281

View CV here

Dr. Stephanie Kliethermes is an Associate Professor in the Department of Orthopedics and Rehabilitation at the University of Wisconsin-Madison. She earned her BA in Mathematics and English at Lawrence University in Appleton, WI, and her MS and PhD in Biostatistics from the University of Iowa.

Dr. Kliethermes currently serves as Research Director for the American Medical Society for Sports Medicine (AMSSM), where she oversees research infrastructure and directs the research initiatives of the AMSSM Collaborative Research Network, housed at UW-Madison. Dr. Kliethermes’ research focuses on the application of statistical methodology and design to sports medicine. While she oversees a broad portfolio of AMSSM research interests, Dr. Kliethermes has personal research interests in youth sport (e.g., youth sport specialization) and injury risk and prevention in runners.


  • PhD Biostatistics, University of Iowa, 2013
  • MS Biostatistics, University of Iowa, 2009
  • BA Mathematics & English, Lawrence University, 2007

Professional Activities

  • Research Director, American Medical Society for Sports Medicine
  • Associate Editor, British Journal of Sports Medicine
  • Associate Editor, Journal of Orthopaedic & Sports Physical Therapy
  • Member, Health and Safety Advisory Council, National Council of Youth Sports
  • Board Member, Datalys Center for Sports Injury Research and Prevention

Select Media Contributions

  • Youth Sport Specialization in the United States, CJSM Podcast Media Link
  • Madam Athlete Podcast, How to handle imposter syndrome Media Link
  • How to Encourage Translational Research among our peers, the Collaborative Research Network, British Journal of Sports Medicine Media Link
  • Research Review- Running, Pediatric Sports Medicine Podcast Media Link

Select Publications

  • Kliethermes SA, Nagle K, Côté J, Malina RM, Faigenbaum A, Watson A, Feeley B, Marshall SW, LaBella CR, Herman DC, Tenforde A, Beutler AI, Jayanthi N. Impact of youth sports specialisation on career and task-specific athletic performance: a systematic review following the American Medical Society for Sports Medicine (AMSSM) Collaborative Research Network’s 2019 Youth Early Sport Specialisation Summit. Br J Sports Med. 2020 Feb;54(4):221-230. doi: 10.1136/bjsports-2019-101365. Epub 2019 Nov 18. PMID: 31740483.
  • McGuine TA, Post E, Biese K, Kliethermes S, Bell D, Watson A, Brooks A, Lang P. The Incidence and Risk Factors for Injuries in Girls Volleyball: A Prospective Study of 2072 Players. J Athl Train. 2020 Nov 5. doi: 10.4085/182-20. Epub ahead of print. PMID: 33150377.
  • Kliethermes SA, Marshall SW, LaBella CR, Watson AM, Brenner JS, Nagle KB, Jayanthi N, Brooks MA, Tenforde AS, Herman DC, DiFiori JP, Beutler AI. Defining a research agenda for youth sport specialisation in the USA: the AMSSM Youth Early Sport Specialization Summit. Br J Sports Med. 2021 Feb;55(3):135-143. doi: 10.1136/bjsports-2020-102699. PMID: 33462103.
  • Biese KM, Kliethermes SA, Watson AM, McGuine TA, Lang PJ, Bell DR, Alison Brooks M. Musculoskeletal Injuries and Their Association With Previous Concussion History: A Prospective Study of High School Volleyball and Soccer Players. Am J Sports Med. 2021 May;49(6):1634-1641. doi: 10.1177/0363546521997116. Epub 2021 Mar 15. PMID: 33719583.
  • Bell DR, Snedden T, Biese K, Nelson E, Watson A, McGuine T, Brooks MA, Brown R, Kliethermes SA. Consensus Definition of Sport Specialization in Youth Athletes Using a Delphi Approach. J Athl Train. 2021 Mar 31. doi: 10.4085/1062-6050-0725.20. Epub ahead of print. PMID: 33787895.
  • Knurr KA, Kliethermes SA, Stiffler-Joachim MR, Cobian DG, Baer GS, Heiderscheit BC. Running Biomechanics Before Injury and 1 Year After Anterior Cruciate Ligament Reconstruction in Division I Collegiate Athletes. Am J Sports Med. 2021 Aug;49(10):2607-2614. doi: 10.1177/03635465211026665. Epub 2021 Jul 14. PMID: 34260290; PMCID: PMC8338897.
  • Moulson N, Petek BJ, Drezner JA, Harmon KG, Kliethermes SA, Patel MR, Baggish AL; ORCCA Investigators. SARS-CoV-2 Cardiac Involvement in Young Competitive Athletes. Circulation. 2021 Apr 17. doi: 10.1161/CIRCULATIONAHA.121.054824. Epub ahead of print. PMID: 33866822.
  • Kliethermes SA, Stiffler-Joachim MR, Wille CM, Sanfilippo J, Zavala P, Heiderscheit BC. Bone stress injury is prospectively associated with step rate in collegiate cross country. Br J Sports Med 2021 May 14. doi: 10.1136/bjsports-2020-103833. Online ahead of print. PMID: 33990294.
  • Wille, CM., Stiffler-Joachim, MR., Kliethermes, SA., Sanfilippo, J., Tanaka, CS., Heiderscheit, BC. “Preseason eccentric strength is not associated with future hamstring strain injury: A prospective study in male and female collegiate athletes” MSSE. Accepted March 2022.