Development of a Dynamic Biomechanical Model for Load Carriage: Phase IV Part C1: Assessment of Pressure Measurement Systems on Flat Surfaces for use in Human Load Carriage

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Authors
  1. Fergenbaum, M.A.
  2. Hadcock, L.
  3. Stevenson, J.M.
  4. Morin, E.
Corporate Authors
Defence R&D Canada - Toronto, Toronto ONT (CAN);Queen's Univ, Kingston ONT (CAN) Ergonomics Research Group
Abstract
A variety of pressures mapping technologies have been used to assess contact pressures between human tissues and solid flat surface materials. However, research on the accuracy, repeatability, and creep for these technologies is limited. Three commonly used technologies were evaluated for accuracy, repeatability, and creep on a flat surface under highly controlled laboratory conditions. The systems tested included a resistive ink technology known as the F-scan F-socket (Tekscan Incorporated), a piezoresistive technology known as the FSA seat mat (Vista Medical, Limited), and a capacitance technology known as the XSENSOR® seat mat (XSENSOR® Technology Corporation). Loads between 9.392 kg and 19.627 kg were placed on each sensor using three standardized protocols: an incremental, a low threshold and a creep protocol. For overall accuracy during incremental loading, FSA mat measured a pressure that was 74.5% of the actual applied pressure, the F-scan measured a pressure that was 247.0% of the actual applied pressure and the XSENSOR® measured a pressure that was 75.1% of the actual applied pressure. The overall accuracy for low threshold testing, found that the FSA mat measured a pressure which was 181.0% of the actual applied light pressure, the F-scan measured a pressure which was 292.0% of the actual applied light pressure and the XSENSOR® measured a pressure that was 103% of the actual applied light pressure. Creep characteristics as a percentage were found to be 19.54% f

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Keywords
Load carriage;Dynamic Biomechanical Model;Pressure measurement System;XSENSOR®;F-Scan
Report Number
DRDC-TORONTO-CR-2005-124 — Contractor Report
Date of publication
01 Aug 2005
Number of Pages
33
DSTKIM No
CA030759
CANDIS No
529368
Format(s):
Electronic Document(PDF)

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