JPO SELF-ASSESSMENT EXAMINATION
TO EARN TWO PCE CREDITS:
- Read the article on pages 98–103.
- Complete the examination.
- Submit your completed examination to the AAOP per the directions on the next page.
The following questions require short answers only; you do not have to use complete sentences. All questions refer to the article, “Quantifying the Spring-like Properties of Ankle-Foot Orthoses (AFOs)” by Tom F. Novacheck, MD, Cammie Beattie, PT, Adam Rozumalski, MS, George Gent, CO, and Gary Kroll, BOCO, CO, RTO.
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- T/F The purpose of this article is to assess the ability of a specific orthotics stiffness-tester to quantify biomechanical properties of stiffness and energy return of five different KAFO designs.
- [Select the correct response.] All of the following represent PLS AFO designs EXCEPT:
- Carbon fiber
- T/F The device was found to be repeatable for stiffness, but not for energy storage.
- T/F As a result of the study, it was determined that speed affected stiffness calculations, but that size was not statistically significant.
- T/F The newer designs (i.e., chevron and carbon fiber) were created to have a greater capacity for energy storage than the single layer PLS AFO.
- T/F Just recently a method has been developed to use gait data to deduce the properties of an AFO that are most appropriate to improve an individualÆs gait prior to AFO fabrication and fitting.
- T/F All of the AFOs in the Standard PLS design category had identical spring curvature, which was meant to reduce the variability of structural stiffness.
- T/F All carbon fiber AFOs had a curved leaf design, which was done to increase the variability that a curved radius has on the mechanics of the leaf spring.
- [Select the correct response.] AFOs may be prescribed for many different reasons, including any or all of the following:
- Improved foot alignment
- Support for weak musculature
- Control of tonal abnormalities
- All of the above
- None of the above
- [Select the correct response.] If an individual has inadequate function to generate the force required for stance phase support and terminal stance push off, a properly designed may be able to compensate for some of these deficits.
- plantarflexor … KAFO
- plantarflexor … AFO
- dorsiflexor … AFO
- dorsiflexor … KAFO
- T/F Concerning the stiffness category, there is a much greater difference between the flexible and the moderate categories than between the moderate and firm categories.
- T/F As a result of the study, it was determined that the Katdare orthotics stiffness tester was capable of reliably quantifying energy storage during testing of these AFOs in dorsi- and plantarflexion.
Complete the JPO Self-Assessment Examination on the previous page and score a minimum of 75 percent to earn two PCE credits. Send the completed examination and payment in U.S. currency ($20/AAOP members, $50 nonmembers) to: AAOP, P.O. Box 34937, Alexandria, VA 22334-0937. The examination must be received by the AAOP within 3 years of the publication date for credit to be awarded.
Phone© 2007 American Academy of Orthotists & Prosthetists