Skip to main content
Log in

Determination of peak stress on polypropylene ankle-foot orthoses due to weight change using strain gage technology

  • Technique
  • Published:
Experimental Techniques Aims and scope Submit manuscript

    We’re sorry, something doesn't seem to be working properly.

    Please try refreshing the page. If that doesn't work, please contact support so we can address the problem.

Conclusion

Magnitudes, locations, and patterns of stress change in the AFOs due to weight change have been determined and studied. The load magnitudes and directions applied can be altered by motions. These stress changes mainly occurred at the neck and upper neck regions of AFOs, along the lateral side. On the medial side of the AFOs, the compressive stress did changed significantly along the entire neck regions. The variations of stresses have their individual characteristics with different motions, people, the foot geometry, and the AFOs. Thus, further investigation and tests on this subject are required.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. Supan T. J., and Hovorka. C. F. (1995). A Review of Thermoplastic Ankle-Foot Orthoses Adjustments/Replacements in Young Cerebral Palsy and Spina Bifida Patients. Journal of Prosthetics and Orthotics, Vol. 7(1).

  2. Yamamoto S., Ebina M., Iwasaki M., Kubo S., Kawai H., & Hayashi T. (1993). Comparative Study of Characteristics of Plastic AFOs. Journal of Prosthetics and Orthotics. Vol. 5(2).

  3. Yamamoto S., Ebina M., Iwasaki M., Kubo S., Kawai H., & Hayashi T., (1993). Quantification of the Effect of Dorsi-Plantarflexibility of Ankle-Foot Orthoses on Hemiplegic Gait: A Preliminary Report. Journal of Prosthetics and Orthotics. Vol. 5(3).

  4. Chu T. & Reddy N. P. (1995). Stress Distribution in the Ankle-Foot Orthosis Used To Correct Pathological Gait. Journal of Rehabilitation and Development, Vol. 32(4), 349–359.

    Google Scholar 

  5. Chu T., Reddy N. P., & Padovan J. (1995). Three-Dimensional Finite Element Stress Analysis of the Polypropylene Ankle-Foot Orthosis: Static Analysis. Medical Engineering & Physics. Vol. 17(5), 372–379.

    Article  Google Scholar 

  6. Chu T. and Gent A. (1996). Bonding methods of strain gages to the polypropylene AFO. EXPERIMENTAL TECHNIQUES, Vol. 20(5), 29–32.

    Article  Google Scholar 

  7. Feng R. (1997). Determination and Studying of Stress Distribution in Various Ankle-Foot Orthoses: Experimental Stress Analysis. Master’s Thesis, NJIT Library.

  8. Wang L. Y. (1997). Determination of Effects of Stress on Polymeric Ankle-Foot Orthoses due to Weight Change: Experimental Stress Analysis. Master’s Thesis, NJIT Library.

  9. Ugural, A. C. (1991). Mechanics of Materials. New York, NY, McGraw-Hill, Inc.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Chu, T. Determination of peak stress on polypropylene ankle-foot orthoses due to weight change using strain gage technology. Exp Tech 24, 28–30 (2000). https://doi.org/10.1111/j.1747-1567.2000.tb02268.x

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1111/j.1747-1567.2000.tb02268.x

Navigation