Biomechanics and Human Factors Analysis

Erick H. Knox, Ph.D., P.E.
Principal & Director of Biomechanical & Safety Engineering
Phone: (630) 851-4566

Biomechanical Accident Reconstruction
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Biomechanical Engineering
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The ESI Biomechanical Practice Group members have conducted investigations pertaining to the mechanism and causation of injury in the transportation (aeronautical, automotive, railroad/train), consumer product, industrial, construction, agricultural, marine, and recreational industries. Analyses have encompassed the interaction of people with their environment, and injuries to many aspects of the human body, including the head, neck, lower back, upper/lower extremities, and torso.

One of our additional strengths is a deep understanding of the claims and litigation process and the ability to provide clear answers in an efficient, timely manner, and to provide expert testimony when necessary. We are routinely involved in projects where the monetary loss or exposure is seven or eight figures.

We have over 30,000 square feet of state-of-the-art laboratory facilities and test equipment strategically located throughout the U.S. (as well as access to other facilities as needed) that allow us to evaluate and test anything from small scale to large scale. Several of our personnel are on various industry standards committees and subcommittees, chairing some of the more prominent ones. Our staff is also well published, and frequently present at various industry and trade organization functions.

Our Biomechanical team utilizes specialized testing, photographic and video analysis, computer graphics, simulations, animations, and literary research in the investigation and reconstruction of accidents.

Areas of specialization include:

  • Accident Investigation and Reconstruction
    • Crashworthiness
    • Human Factors and Ergonomics
    • Mechanical Testing and Failure Analysis
    • Biomedical Instrumentation
  • Bioelectrical Shock
  • Human Motion Analysis
  • Human Kinetic (Force) Analysis
  • Human Performance
  • Product Hazard Analysis
  • Injury Causation/Mechanisms
  • Occupant Kinematics

Professionals in This Area








Auflick, Jack L., Ph.D.   Senior Consultant  


Bonanti, Christopher J., M.Eng   Senior Managing Consultant  

District of Columbia

Breen, Casey   Senior Staff Consultant  


Breen, Kevin C., P.E.   Principal & Director of Marine & Automotive Research  


Brickman, Dennis B., P.E.   Principal  


Fortenbaugh, Dave, Ph.D.   Staff Consultant  


Garber, Mitchell A., M.D., M.P.H., M.S.M.E.   Senior Managing Consultant  


Hughes, Kathryn G., M.D., M.P.H., DAvMed   Consultant  


Karosas, George V., P.E., CSP   Senior Consultant  


Knox, Erick H., Ph.D., P.E.   Principal & Director of Biomechanical & Safety Engineering  


Mathias, Anne, P.E.   Senior Consultant  


Meza-Arroyo, Manuel, Ph.D., AHFP   Staff Consultant  


Shibata, Peggy A., P.E.   Senior Consultant  


Sprague, James K., Ph.D., P.E.   Principal & Manager of Michigan Operations  


Stern, Amber Rath, Ph.D., P.E.   Senior Consultant  

North Carolina

Van Bree, Michael P.   Senior Consultant  


van Poppel, Jon, P.E.   Senior Consultant  

Texas (Houston)