This link has several cineradiographic displays of both male and female heel impact studies. Comparative views show both shod and barefoot. This is very helpful in illustrating the sequence of the various phases of the stride. The site is sponsored by the International Society of Biomechanics, an organization dedicated to the promotion and support of scientific research in the field of biomechanics. Areas of interest include Sports Biomechanics, Clinical and Rehabilitation Biomechanics, Locomotion, Neuromuscular and Tissue Biomechanics. Technical sections of the Society cater to members with special interests in Computer simulation and 3D analysis of human movement.

Expert and Technical Links

William English, PE. For those involved in the field testing of surfaces for slip resistance, there is no better site than that of William English, PE, who developed and patented the Variable Incidence Tribometer known as the English XL. His newsletter is not only free, but extremely informative. English brings the reader up to date on all of the new methodology and standards. www.englishxl.com

Charles E. Turnbow, JD, PE. My other website, www.charlesturnbow.com contains updates to the law and science, my resume and background information, schedule of services and other material regarding my professional engineering practice.

National Safety Council The NSC is an organization which supports safety in the United States. While it is not a professional organization, it provides information about the state of the art and industry practice in safety. The accident statistics published annually are recognized as being authoritative in the field. The National Safety Council

American Society for Testing and Material. The ASTM is the premiere standards setting organization in the country. Virtually all of the standards for measuring coefficients of friction and slip resistance have been promulgated by this Society. Copies of individual standards my be purchased online. www.astm.org

International Conference of Building Officials The Uniform Building Code is promulgated by this group. ICBO was instrumental in the development and adoption of the International Building Code and other standard codes. The website provides a means by which the various codes can be purchased. ICBO also sponsors training programs for inspector and building official certification. www.ICBO.org

Thomas F. Fugger, Jr, PE. is president and senior engineer of Accident Research and Biomechanics, Inc. who deals primarily with transportation accidents. I had to good fortune to work with him on a major case and found his insight and knowledge to be impressive. www.accidentresearch.com

Keith Vidal, P.E. is the principal of Vidal Engineering and in my opinion one of the most knowledgeable experts in the field of slip resistance and pedestrian safety. His website is a treasure house of information about testing protocol and standards. www.slipandfall.com

Naffa International, Inc. is the one-stop shopping center for free code compliance information. Principals of this group host a discussion group for building code questions. This is no sissy group either. The participants are usually all professional engineers, designers, architects, contractors and building officials. It doesn't get much better than this. http://www.naffainc.com/

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International Society of Biomechanics
Technical Group on
Footwear Biomechanics