Parker, DJ ORCID: https://orcid.org/0000-0001-9952-1225, Cooper, G, Pearson, S
ORCID: https://orcid.org/0000-0003-1503-5452, Crofts, GS, Howard, D
ORCID: https://orcid.org/0000-0003-1738-0698, Busby, P and Nester, CJ
ORCID: https://orcid.org/0000-0003-1688-320X
2015,
'A device for characterising the mechanical properties of the plantar soft tissue of the foot'
, Medical Engineering & Physics, 37 (11)
, pp. 1098-1104.
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Abstract
The plantar soft tissue is a highly functional viscoelastic structure involved in transferring load to the human body during walking. A Soft Tissue Response Imaging Device was developed to apply a vertical compression to the plantar soft tissue whilst measuring the mechanical response via a combined load cell and ultrasound imaging arrangement. Accuracy of motion compared to input profiles; validation of the response measured for standard materials in compression; variability of force and displacement measures for consecutive compressive cycles; and implementation in vivo with five healthy participants. Static displacement displayed average error of 0.04 mm (range of 15 mm), and static load displayed average error of 0.15 N (range of 250 N). Validation tests showed acceptable agreement compared to a Houndsfield tensometer for both displacement (CMC > 0.99 RMSE > 0.18 mm) and load (CMC > 0.95 RMSE < 4.86 N). Device motion was highly repeatable for bench-top tests (ICC = 0.99) and participant trials (CMC = 1.00). Soft tissue response was found repeatable for intra (CMC > 0.98) and inter trials (CMC > 0.70). The device has been shown to be capable of implementing complex loading patterns similar to gait, and of capturing the compressive response of the plantar soft tissue for a range of loading conditions in vivo.
Item Type: | Article |
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Schools: | Schools > School of Health and Society > Centre for Health Sciences Research |
Journal or Publication Title: | Medical Engineering & Physics |
Publisher: | Elsevier |
ISSN: | 1350-4533 |
Related URLs: | |
Funders: | SSL International Ltd |
Depositing User: | Professor Christopher Nester |
Date Deposited: | 09 Dec 2015 11:26 |
Last Modified: | 15 Feb 2022 20:04 |
URI: | http://usir.salford.ac.uk/id/eprint/37399 |
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