Abigail Bretzin, PhD, ATC

 Abigail Bretzin
Research Assistant Professor
Emergency Medicine
Medical School
Office:
2800 Plymouth Road, Suite B10-G080
Ann Arbor, MI 48109
Email:
[email protected]
Available to mentor
Abigail Bretzin, PhD, ATC
Abigail Bretzin
Research Assistant Professor
  • About
  • Qualifications
  • Center Memberships
  • Research Overview
  • Recent Publications

  • Manage Your Profile

    • About

    Dr. Abigail Bretzin is a Research Investigator in the Department of Emergency Medicine and a member of the Michigan Injury Prevention Center. Before joining the Michigan Injury Prevention Center, Dr. Bretzin completed a postdoctoral research fellowship at the University of Pennsylvania, gaining advanced training in epidemiology. During her postdoctoral studies, she also completed NIH-funded training programs in sleep and traumatic brain injury. Dr. Bretzin earned her PhD in Kinesiology at Michigan State University.

    Administrative Contacts

    Terry Ebenhoeh
    [email protected]

    Lisa Orrison
    [email protected]

    Qualifications
    • PhD, Athletic Training
      Michigan State University, Kinesiology, East Lansing, MI, United States
      2015 - 2019
    • MS
      Temple University Health System, Philadelphia, PA, United States
      2013 - 2015
    • BS
      State University of New York at Cortland, Cortland, NY, United States
      2009 - 2013

    Center Memberships
    • Center Member
      Eisenberg Family Depression Center
    • Center Member
      University of Michigan Injury Prevention Center
    • Center Member
      Institute for Healthcare Policy and Innovation
    • Center Member
      Institute for Research on Women And Gender
    • Center Member
      Center for Global Health Equity

    Research Overview

    Dr. Bretzin’s research includes primary, secondary, and tertiary prevention of traumatic brain injury (TBI), specifically sport-related concussion. Her research examines the epidemiology of concussion and TBI, related health disparities, and long-term outcomes of the injury and repetitive head impact exposure. Dr. Bretzin is also a member of the Data Coordinating Core of the Ivy League – Big Ten Epidemiology of Concussion Study, leading analyses and study dissemination activities. Her research also engages under-represented communities, with attention to male and female differences in sport-related concussion incidence and outcomes.

    Recent Publications

     See All Publications
    • Journal Article
      Incidence of Concussion in a Cadet and Junior National Wrestling Tournament from 2013 to 2025.
      Bretzin AC, McLaughlin MR, Moyer M, Cooper L, Joyner D, Wiebe DJ, Collins CL, Porter J, Covassin T. Clin J Sport Med, 2026 Sep 9; DOI:10.1097/JSM.0000000000001509
      PMID: 42711805
    • Journal Article
      Calculated Clinical Incidence of Sport-Related Concussion in Rural Communities with Barriers to Health Care
      Wallace J, Kerr Z, Hawkins A, Bretzin A. Orthopaedic Journal of Sports Medicine, 2026 Jun 19; 14 (6 suppl5): 2325967126s00052 DOI:10.1177/2325967126s00052
      PMID: PMC13287396
    • Presentation
      Concussion Management in the High School Setting: From Initial Assessment to Return-to-Play
      Bretzin AC, Freeman J. 2026 Jul 1;
    • Proceeding / Abstract / Poster
      Leveraging a Multidisciplinary Surveillance Infrastructure to Advance Primary and Secondary Concussion Prevention: Lessons from the Ivy League-Big Ten Epidemiology of Concussion Study
      Nerrie M, Bretzin AC. 2026 May 7;
    • Journal Article
      Establishing the Reliability and Validity of A Novel Ecological Momentary Assessment Tool in Healthy College-Aged Athletes: A Foundation for Future Concussion Research.
      Tracey AJ, Wiebe DJ, Kelly KS, Hoffman NL, Covassin T, Bretzin AC. J Head Trauma Rehabil, 2026 Mar 13; DOI:10.1097/HTR.0000000000001149
      PMID: 41820268
    • Presentation
      Injury Prevention and Early Detection of Brain Concussions
      Bretzin A. 2026 Apr 3;
    • Presentation
      Introduction to Research Statistics: Tests of Association.
      Bretzin A. 2026 Apr 3;
    • Presentation
      Understanding Concussion Management Practices Across Athletics Settings to Inform Implementation Strategies for Remote Symptom Monitoring
      Bretzin AC. 2026 May 19;