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A kinematic analysis of a haptic handheld stylus in a virtual environment: a study in healthy subjects

BACKGROUND: Virtual Reality provides new options for conducting motor assessment and training within computer-generated 3 dimensional environments. To date very little has been reported about normal performance in virtual environments. The objective of this study was to evaluate the test-retest reli...

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Autores principales: Broeren, Jurgen, Sunnerhagen, Katharina S, Rydmark, Martin
Formato: Texto
Lenguaje:English
Publicado: BioMed Central 2007
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1877808/
https://www.ncbi.nlm.nih.gov/pubmed/17490470
http://dx.doi.org/10.1186/1743-0003-4-13
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author Broeren, Jurgen
Sunnerhagen, Katharina S
Rydmark, Martin
author_facet Broeren, Jurgen
Sunnerhagen, Katharina S
Rydmark, Martin
author_sort Broeren, Jurgen
collection PubMed
description BACKGROUND: Virtual Reality provides new options for conducting motor assessment and training within computer-generated 3 dimensional environments. To date very little has been reported about normal performance in virtual environments. The objective of this study was to evaluate the test-retest reliability of a clinical procedure measuring trajectories with a haptic handheld stylus in a virtual environment and to establish normative data in healthy subjects using this haptic device. METHODS: Fifty-eight normal subjects; aged from 20 to 69, performed 3 dimensional hand movements in a virtual environment using a haptic device on three occasions within one week. Test-retest stability and standardized normative data were obtained for all subjects. RESULTS: No difference was found between test and retest. The limits of agreement revealed that changes in an individual's performance could not be detected. There was a training effect between the first test occasion and the third test occasion. Normative data are presented. CONCLUSION: A new test was developed for recording the kinematics of the handheld haptic stylus in a virtual environment. The normative data will be used for purposes of comparison in future assessments, such as before and after training of persons with neurological deficits.
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spelling pubmed-18778082007-05-25 A kinematic analysis of a haptic handheld stylus in a virtual environment: a study in healthy subjects Broeren, Jurgen Sunnerhagen, Katharina S Rydmark, Martin J Neuroengineering Rehabil Methodology BACKGROUND: Virtual Reality provides new options for conducting motor assessment and training within computer-generated 3 dimensional environments. To date very little has been reported about normal performance in virtual environments. The objective of this study was to evaluate the test-retest reliability of a clinical procedure measuring trajectories with a haptic handheld stylus in a virtual environment and to establish normative data in healthy subjects using this haptic device. METHODS: Fifty-eight normal subjects; aged from 20 to 69, performed 3 dimensional hand movements in a virtual environment using a haptic device on three occasions within one week. Test-retest stability and standardized normative data were obtained for all subjects. RESULTS: No difference was found between test and retest. The limits of agreement revealed that changes in an individual's performance could not be detected. There was a training effect between the first test occasion and the third test occasion. Normative data are presented. CONCLUSION: A new test was developed for recording the kinematics of the handheld haptic stylus in a virtual environment. The normative data will be used for purposes of comparison in future assessments, such as before and after training of persons with neurological deficits. BioMed Central 2007-05-09 /pmc/articles/PMC1877808/ /pubmed/17490470 http://dx.doi.org/10.1186/1743-0003-4-13 Text en Copyright © 2007 Broeren et al; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( (http://creativecommons.org/licenses/by/2.0) ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Methodology
Broeren, Jurgen
Sunnerhagen, Katharina S
Rydmark, Martin
A kinematic analysis of a haptic handheld stylus in a virtual environment: a study in healthy subjects
title A kinematic analysis of a haptic handheld stylus in a virtual environment: a study in healthy subjects
title_full A kinematic analysis of a haptic handheld stylus in a virtual environment: a study in healthy subjects
title_fullStr A kinematic analysis of a haptic handheld stylus in a virtual environment: a study in healthy subjects
title_full_unstemmed A kinematic analysis of a haptic handheld stylus in a virtual environment: a study in healthy subjects
title_short A kinematic analysis of a haptic handheld stylus in a virtual environment: a study in healthy subjects
title_sort kinematic analysis of a haptic handheld stylus in a virtual environment: a study in healthy subjects
topic Methodology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1877808/
https://www.ncbi.nlm.nih.gov/pubmed/17490470
http://dx.doi.org/10.1186/1743-0003-4-13
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