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Specialties & Experience

General Specialties: Biomechanics and Human Factors

Specialty Focus: human factors, ergonomics, accident reconstruction, motorcycle accident, truck accident, slip trip & fall, brain injury, head injury, TBI, helmet, helmet testing, motorcycle helmet

Education: PhD, Loughborough University, England; B.Sc.(Hons), Loughborough University, England

Years in Practice: 25

Number of Times Deposed/Testified in Last 4 Yrs: 50+


Additional Information

John Lloyd, PhD, CPE has served as an expert witness for 25 years, providing testimony in biomechanics, human factors and accident reconstruction involving motorcycle, auto and trucking accidents. Specializing in the Biomechanics, Dr. Lloyd has been qualified to provide biomechanical analyses of various incidents, including: • Motorcycle Accidents • Automobile Accidents • Human Factors • Brain Injury • Helmets • Slips Trips & Falls Dr. Lloyd earned a Ph.D. in Ergonomics / Human Factors with specialization in Biomechanics from Loughborough University in England and is Board Certified throughout the United States Dr. Lloyd served as a senior federal research for 20 years. Additionally, he holds a courtesy appointment as Assistant Professor in the University of South Florida College of Engineering. Dr. Lloyd has testified on more than 90 occasions nationwide, pertaining to civil and criminal cases. Dr. Lloyd’s work has been published in 6 book chapters and 31 peer-reviewed journal articles, as well as presented at more than 100 conferences. Dr. Lloyd’s research on helmets has lead to several peer-reviewed scientific publications. Most recently, Dr. Lloyd published a scientific article in the Journal of Neurosurgery titled “Brain Injury in Sports“. Dr. Lloyd’s passion is motorcycling, which, along with automobile accidents, is a leading cause of traumatic brain injuries. Dr. Lloyd has obtained certification through the Institute for Police Technology and Management on Motorcycle Crash Investigation, as well as certification in Reconstruction and Analysis of Motorcycle Accidents through the Society for Automotive Engineering.