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

Document Type

Article

Publication Date

1-1-2000

Abstract

An experimental testing and data collecting system for determining the peak stress on Polypropylene (PP) Ankle-Foot Orthoses (AFOs) has been conducted. Quantitative data on stress change due to weight change were obtained. This information is important in re-manufacturing an AFO since a person's body weight changes during the waiting period of their AFO. Results reveal that not only the magnitude of stress changed when the body weights (load) change, but the location where the stresses were concentrated and their distributions in AFOs were also changed, especially in the neck and upper neck regions of the AFOs. However, this change is neither proportional nor linear. The motion pattern of a person and the distinct geometry of an individual's foot also alter the magnitude of stress in AFOs. These quantified data provide important information on design parameters for the re-design of an enhanced version AFO.

Identifier

0033751881 (Scopus)

Publication Title

Experimental Techniques

External Full Text Location

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

ISSN

07328818

First Page

28

Last Page

30

Issue

2

Volume

24

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