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Developing functional workspace for the movement of trunk circumduction in healthy young subjects: a reliability study

BACKGROUND: The lumbar range of motion has traditionally been used to assess disability in patients with low back disorders. Controversy exists about how movement ranges in static positions or in a single straight plane is related to the functional status of the patients. The trunk circumduction, as...

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Autores principales: Cheng, Su-Chun, Hsu, Chieh-Hsiang, Ting, Yi-Ting, Kuo, Li-Chieh, Lin, Ruey-Mo, Su, Fong-Chin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3598346/
https://www.ncbi.nlm.nih.gov/pubmed/23311750
http://dx.doi.org/10.1186/1475-925X-12-4
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author Cheng, Su-Chun
Hsu, Chieh-Hsiang
Ting, Yi-Ting
Kuo, Li-Chieh
Lin, Ruey-Mo
Su, Fong-Chin
author_facet Cheng, Su-Chun
Hsu, Chieh-Hsiang
Ting, Yi-Ting
Kuo, Li-Chieh
Lin, Ruey-Mo
Su, Fong-Chin
author_sort Cheng, Su-Chun
collection PubMed
description BACKGROUND: The lumbar range of motion has traditionally been used to assess disability in patients with low back disorders. Controversy exists about how movement ranges in static positions or in a single straight plane is related to the functional status of the patients. The trunk circumduction, as the result of neuromuscular coordination, is the integrated movements from three dimensions. The functional workspace stands for the volume of movement configuration from the trunk circumduction and represents all possible positions in three dimensions. By using single quantitative value, the functional workspace substitutes the complicated joint linear or angular motions. The aim of this study is to develop the functional workspace of the trunk circumduction (FWTC) considering possible functional positions in three dimensional planes. The reliability of the trunk circumduction is examined. METHODS: Test-retest reliability was performed with 18 healthy young subjects. A three-dimensional (3-D) Motion Analysis System was used to record the trunk circumduction. The FWTC was defined and calculated based on the volume of the cone that was formed as the resultant scanned area of markers, multiplied by the length of the body segment. The statistical analysis of correlation was performed to describe the relation of maximal displacements of trunk circumduction and straight planes: sagittal and coronal. RESULTS: The results of this study indicate that the movement of trunk circumduction measured by motion analysis instruments is a reliable tool. The ICC value is 0.90-0.96, and the means and standard deviations of the normalized workspace are: C7 0.425 (0.1162); L1 0.843 (0.2965); and knee 0.014 (0.0106). Little correlations between the maximal displacement of trunk circumduction and that of straight planes are shown and therefore suggest different movement patterns exist. CONCLUSIONS: This study demonstrates high statistical reliability for the FWTC, which is important for the potential development as the functional assessment technique. The FWTC provides a single integrated value to represent angular and linear measurements of different joints and planes. Future study is expected to carry out the FWTC to evaluate the amount of workspace for the functional status of patients with low back injuries or patients with spinal surgery.
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spelling pubmed-35983462013-03-20 Developing functional workspace for the movement of trunk circumduction in healthy young subjects: a reliability study Cheng, Su-Chun Hsu, Chieh-Hsiang Ting, Yi-Ting Kuo, Li-Chieh Lin, Ruey-Mo Su, Fong-Chin Biomed Eng Online Research BACKGROUND: The lumbar range of motion has traditionally been used to assess disability in patients with low back disorders. Controversy exists about how movement ranges in static positions or in a single straight plane is related to the functional status of the patients. The trunk circumduction, as the result of neuromuscular coordination, is the integrated movements from three dimensions. The functional workspace stands for the volume of movement configuration from the trunk circumduction and represents all possible positions in three dimensions. By using single quantitative value, the functional workspace substitutes the complicated joint linear or angular motions. The aim of this study is to develop the functional workspace of the trunk circumduction (FWTC) considering possible functional positions in three dimensional planes. The reliability of the trunk circumduction is examined. METHODS: Test-retest reliability was performed with 18 healthy young subjects. A three-dimensional (3-D) Motion Analysis System was used to record the trunk circumduction. The FWTC was defined and calculated based on the volume of the cone that was formed as the resultant scanned area of markers, multiplied by the length of the body segment. The statistical analysis of correlation was performed to describe the relation of maximal displacements of trunk circumduction and straight planes: sagittal and coronal. RESULTS: The results of this study indicate that the movement of trunk circumduction measured by motion analysis instruments is a reliable tool. The ICC value is 0.90-0.96, and the means and standard deviations of the normalized workspace are: C7 0.425 (0.1162); L1 0.843 (0.2965); and knee 0.014 (0.0106). Little correlations between the maximal displacement of trunk circumduction and that of straight planes are shown and therefore suggest different movement patterns exist. CONCLUSIONS: This study demonstrates high statistical reliability for the FWTC, which is important for the potential development as the functional assessment technique. The FWTC provides a single integrated value to represent angular and linear measurements of different joints and planes. Future study is expected to carry out the FWTC to evaluate the amount of workspace for the functional status of patients with low back injuries or patients with spinal surgery. BioMed Central 2013-01-11 /pmc/articles/PMC3598346/ /pubmed/23311750 http://dx.doi.org/10.1186/1475-925X-12-4 Text en Copyright ©2013 Cheng 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 Research
Cheng, Su-Chun
Hsu, Chieh-Hsiang
Ting, Yi-Ting
Kuo, Li-Chieh
Lin, Ruey-Mo
Su, Fong-Chin
Developing functional workspace for the movement of trunk circumduction in healthy young subjects: a reliability study
title Developing functional workspace for the movement of trunk circumduction in healthy young subjects: a reliability study
title_full Developing functional workspace for the movement of trunk circumduction in healthy young subjects: a reliability study
title_fullStr Developing functional workspace for the movement of trunk circumduction in healthy young subjects: a reliability study
title_full_unstemmed Developing functional workspace for the movement of trunk circumduction in healthy young subjects: a reliability study
title_short Developing functional workspace for the movement of trunk circumduction in healthy young subjects: a reliability study
title_sort developing functional workspace for the movement of trunk circumduction in healthy young subjects: a reliability study
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3598346/
https://www.ncbi.nlm.nih.gov/pubmed/23311750
http://dx.doi.org/10.1186/1475-925X-12-4
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