A Fast Testing Method to Objectively Quantify the Stiffness of Stability Boots

Stability boots can protect the ankle ligaments from overloading after serious injury and facilitate protected movement in order to aid healing of the surrounding soft tissue structures. For comparing different stability shoe designs and prototypes, a reliable and fast testing method (FTM) is requir...

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Bibliographic Details
Main Authors:	Bürgi, Simon, Roost, Judith, Hitz, Marco R., Schwilch, Peter, Taylor, William R., Lorenzetti, Silvio
Format:	Online
Language:	English
Published:	Hindawi Publishing Corporation 2015
Online Access:	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4745442/

id	pubmed-4745442
recordtype	oai_dc
spelling	pubmed-47454422016-03-27 A Fast Testing Method to Objectively Quantify the Stiffness of Stability Boots Bürgi, Simon Roost, Judith Hitz, Marco R. Schwilch, Peter Taylor, William R. Lorenzetti, Silvio Research Article Stability boots can protect the ankle ligaments from overloading after serious injury and facilitate protected movement in order to aid healing of the surrounding soft tissue structures. For comparing different stability shoe designs and prototypes, a reliable and fast testing method (FTM) is required. The aim of this study was to assess the reliability of a novel custom-built device. Six different stability boots were tested in a novel device that allowed body weight to be taken into account using a pneumatic actuator. The fixation of the boots was controlled using two air pad pressure sensors. The range of motion (RoM) was then assessed during 5 trials at physiological ankle joint torques during flexion/extension and inversion/eversion. Furthermore the intraclass correlation coefficient ICC was determined to assess the repetitive reliability of the testing approach. The measured ankle angles ranged from 3.4° to 25° and proved to be highly reliable (ICC = 0.99), with standard deviations <9.8%. Comparing single trials to one another resulted in a change of 0.01° joint angle, with a mean error of 0.02°. The FTM demonstrates that it is possible to reliably measure the ankle joint RoM in both the sagittal and frontal planes at controlled torque levels, together with the application of body weight force. Hindawi Publishing Corporation 2015 2015-12-10 /pmc/articles/PMC4745442/ /pubmed/27019588 http://dx.doi.org/10.1155/2015/595708 Text en Copyright © 2015 Simon Bürgi et al. https://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
repository_type	Open Access Journal
institution_category	Foreign Institution
institution	US National Center for Biotechnology Information
building	NCBI PubMed
collection	Online Access
language	English
format	Online
author	Bürgi, Simon Roost, Judith Hitz, Marco R. Schwilch, Peter Taylor, William R. Lorenzetti, Silvio
spellingShingle	Bürgi, Simon Roost, Judith Hitz, Marco R. Schwilch, Peter Taylor, William R. Lorenzetti, Silvio A Fast Testing Method to Objectively Quantify the Stiffness of Stability Boots
author_facet	Bürgi, Simon Roost, Judith Hitz, Marco R. Schwilch, Peter Taylor, William R. Lorenzetti, Silvio
author_sort	Bürgi, Simon
title	A Fast Testing Method to Objectively Quantify the Stiffness of Stability Boots
title_short	A Fast Testing Method to Objectively Quantify the Stiffness of Stability Boots
title_full	A Fast Testing Method to Objectively Quantify the Stiffness of Stability Boots
title_fullStr	A Fast Testing Method to Objectively Quantify the Stiffness of Stability Boots
title_full_unstemmed	A Fast Testing Method to Objectively Quantify the Stiffness of Stability Boots
title_sort	fast testing method to objectively quantify the stiffness of stability boots
description	Stability boots can protect the ankle ligaments from overloading after serious injury and facilitate protected movement in order to aid healing of the surrounding soft tissue structures. For comparing different stability shoe designs and prototypes, a reliable and fast testing method (FTM) is required. The aim of this study was to assess the reliability of a novel custom-built device. Six different stability boots were tested in a novel device that allowed body weight to be taken into account using a pneumatic actuator. The fixation of the boots was controlled using two air pad pressure sensors. The range of motion (RoM) was then assessed during 5 trials at physiological ankle joint torques during flexion/extension and inversion/eversion. Furthermore the intraclass correlation coefficient ICC was determined to assess the repetitive reliability of the testing approach. The measured ankle angles ranged from 3.4° to 25° and proved to be highly reliable (ICC = 0.99), with standard deviations <9.8%. Comparing single trials to one another resulted in a change of 0.01° joint angle, with a mean error of 0.02°. The FTM demonstrates that it is possible to reliably measure the ankle joint RoM in both the sagittal and frontal planes at controlled torque levels, together with the application of body weight force.
publisher	Hindawi Publishing Corporation
publishDate	2015
url	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4745442/
_version_	1613535392077709312

A Fast Testing Method to Objectively Quantify the Stiffness of Stability Boots

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