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...

Full description

Saved in:
Bibliographic Details
Main Authors: Simon Bürgi, Judith Roost, Marco R. Hitz, Peter Schwilch, William R. Taylor, Silvio Lorenzetti
Format: Article
Language:English
Published: Wiley 2015-01-01
Series:Applied Bionics and Biomechanics
Online Access:http://dx.doi.org/10.1155/2015/595708
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1832555000939675648
author Simon Bürgi
Judith Roost
Marco R. Hitz
Peter Schwilch
William R. Taylor
Silvio Lorenzetti
author_facet Simon Bürgi
Judith Roost
Marco R. Hitz
Peter Schwilch
William R. Taylor
Silvio Lorenzetti
author_sort Simon Bürgi
collection DOAJ
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.
format Article
id doaj-art-72a8a383d4444540ad981db675608687
institution Kabale University
issn 1176-2322
1754-2103
language English
publishDate 2015-01-01
publisher Wiley
record_format Article
series Applied Bionics and Biomechanics
spelling doaj-art-72a8a383d4444540ad981db6756086872025-02-03T05:49:55ZengWileyApplied Bionics and Biomechanics1176-23221754-21032015-01-01201510.1155/2015/595708595708A Fast Testing Method to Objectively Quantify the Stiffness of Stability BootsSimon Bürgi0Judith Roost1Marco R. Hitz2Peter Schwilch3William R. Taylor4Silvio Lorenzetti5Institute for Biomechanics, ETH Zurich, Leopold-Ruzicka-Weg 4, 8093 Zürich, SwitzerlandInstitute for Biomechanics, ETH Zurich, Leopold-Ruzicka-Weg 4, 8093 Zürich, SwitzerlandInstitute for Biomechanics, ETH Zurich, Leopold-Ruzicka-Weg 4, 8093 Zürich, SwitzerlandInstitute for Biomechanics, ETH Zurich, Leopold-Ruzicka-Weg 4, 8093 Zürich, SwitzerlandInstitute for Biomechanics, ETH Zurich, Leopold-Ruzicka-Weg 4, 8093 Zürich, SwitzerlandInstitute for Biomechanics, ETH Zurich, Leopold-Ruzicka-Weg 4, 8093 Zürich, SwitzerlandStability 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.http://dx.doi.org/10.1155/2015/595708
spellingShingle Simon Bürgi
Judith Roost
Marco R. Hitz
Peter Schwilch
William R. Taylor
Silvio Lorenzetti
A Fast Testing Method to Objectively Quantify the Stiffness of Stability Boots
Applied Bionics and Biomechanics
title 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_short 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
url http://dx.doi.org/10.1155/2015/595708
work_keys_str_mv AT simonburgi afasttestingmethodtoobjectivelyquantifythestiffnessofstabilityboots
AT judithroost afasttestingmethodtoobjectivelyquantifythestiffnessofstabilityboots
AT marcorhitz afasttestingmethodtoobjectivelyquantifythestiffnessofstabilityboots
AT peterschwilch afasttestingmethodtoobjectivelyquantifythestiffnessofstabilityboots
AT williamrtaylor afasttestingmethodtoobjectivelyquantifythestiffnessofstabilityboots
AT silviolorenzetti afasttestingmethodtoobjectivelyquantifythestiffnessofstabilityboots
AT simonburgi fasttestingmethodtoobjectivelyquantifythestiffnessofstabilityboots
AT judithroost fasttestingmethodtoobjectivelyquantifythestiffnessofstabilityboots
AT marcorhitz fasttestingmethodtoobjectivelyquantifythestiffnessofstabilityboots
AT peterschwilch fasttestingmethodtoobjectivelyquantifythestiffnessofstabilityboots
AT williamrtaylor fasttestingmethodtoobjectivelyquantifythestiffnessofstabilityboots
AT silviolorenzetti fasttestingmethodtoobjectivelyquantifythestiffnessofstabilityboots