32824 Michigan Avenue
San Antonio, Florida 33576














Available to provide consulting and litigation support services nationwide.

Select publications, fees, and references available on request



John Lloyd, PhD, CPE specializes in biomechanics of head and brain injury, which may be the result of various impacts, including falls, shaking baby syndrome (SBS), motor vehicle accidents, and concussion / football helmets

Dr. Lloyd is Senior Researcher at the Biomechanics and Traumatic Brain Injury laboratories at the Tampa VA hospital, where he conducts brain injury research. His scientific discoveries have been published in many journal articles, book chapters and presented at leading conferences.

John has served as an expert on a number of civil and criminal cases, with testimony experience in several states.

Areas of Expertise:

Dr. Lloyd's expertise encompasses Biomechanics of Head and Brain Injury including:

Education and Certifications:

PhD – Ergonomics, Loughborough University, England, UK.
BSc (Hons) – Ergonomics, Loughborough University, England, UK.
M.Erg.S. - Registered Member of The Ergonomics Society
CPE – Board Certified Ergonomist (#725)
CBIS - Certified Brain Injury Specialist

Dr. John Lloyd holds a PhD in Ergonomics from Loughborough University in England, and is Board Certified throughout the United States as a Certified Professional Ergonomist (No. 725).

Dr. Lloyd is a federally-funded Researcher and Expert in the fields of Ergonomics and Biomechanics. John currently serves as Senior Researcher at the Biomechanics and Traumatic Brain Injury Laboratories at the James A. Haley VAMC in Tampa. He also holds a courtesy faculty appointment in the College of Engineering at the University of South Florida.

For over 20 years, Dr. Lloyd has provided ergonomics and biomechanics-related consulting services. He has authored more than 80 book chapters, publications, open-literature articles and technical reports on ergonomics and biomechanics.

John and his wife, Brenda, have made their home in the enchanted city of San Antonio, Florida, to the north of Tampa. There they raise their two children, Allison-Kate who is a strong-minded redheaded girl of Irish-decent, born in the fall of 2007; and their energetic son, Kieran, who was born in December 2009.

Professional Memberships:

  • American Biomechanics Society
  • American Academy of Forensic Sciences
  • Academy of Brain Injury Specialists
  • Sigma Xi Research Society

Recent Publications:

  • Bowers B, Lloyd J, Lee W, Powell-Cope G and Baptiste A, “Biomechanical evaluation of injury severity associated with patient falls from bed.” Rehabilitation Nursing 2008 33(6): 253–9
  • Schulz BW, Lee WE and Lloyd JD. (2009). Estimation, Simulation, and Experimentation of a Fall from Bed. Journal of Rehabilitation Research & Development 2009 45(8): 1227 — 1236
  • Schulz BW, Lloyd JD and Lee WE, (2010). “The Effects of Everyday Concurrent Tasks on Overground Minimum Toe Clearance and Gait Parameters.” Gait and Posture May 2010 32(1): 18–22
  • Waters TR, Short M, Lloyd, JD, Baptiste A, Butler L, Peterson C and Nelson A, “Positioning and Repositioning the Supine Patient on the OR Bed.” AORN Journal 2011 93(4): 445–449
  • Hughes NL, Nelson A, Matz M and Lloyd J. (2011). Solutions for Prolonged Standing in Perioperative Settings. AORN Journal 93(6): 767–774
  • Spera P, Lloyd JD, Hernandez E, Hughes N, Petersen C, Nelson A and Spratt DG, “Tissue Retraction in the Perioperative Setting.” AORN Journal 2011 94(1) 54–58
  • Waters T, Lloyd J, Hernandez E & Nelson A. (2011) Ergonomics Tool 7: Pushing, Pulling and Moving Equipment on Wheels. AORN Journal 94; (3): 254-260
  • Lloyd et al. (2011) Biomechanical Evaluation of Infant Shaking compared with Pediatric Activities of Daily Living. Journal of Forensic Biomechanics