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Precision of measurements of physical workload during standardized manual handling part III: Goniometry of the wrists.

Balogh, Istvan LU ; Ohlsson, Kerstina LU ; Nordander, Catarina LU ; Skerfving, Staffan LU and Hansson, Gert-Åke LU (2009) In Journal of Electromyography & Kinesiology 19(5). p.1005-1012
Abstract
Goniometry of the wrist is a feasible method for studying wrist movements in most hand-intensive work. The precision and accuracy of the method per se is good. For the knowledge on validity of field measurements, the size of imprecision is of importance. This study evaluated this condition during standardized circumstances. Six women performed three different hand-intensive work tasks: 'materials picking', 'light assembly', and 'heavy assembly', repeated during three different days. Variance components between-days (within subjects) and between-subjects were derived for positions (flexion/extension and deviation) and movements, including angular velocities, % of time with very low velocity (<1 degrees /s), as well as repetitiveness. For... (More)
Goniometry of the wrist is a feasible method for studying wrist movements in most hand-intensive work. The precision and accuracy of the method per se is good. For the knowledge on validity of field measurements, the size of imprecision is of importance. This study evaluated this condition during standardized circumstances. Six women performed three different hand-intensive work tasks: 'materials picking', 'light assembly', and 'heavy assembly', repeated during three different days. Variance components between-days (within subjects) and between-subjects were derived for positions (flexion/extension and deviation) and movements, including angular velocities, % of time with very low velocity (<1 degrees /s), as well as repetitiveness. For positions, the average standard deviations in the three tasks were, both between-days and between-subjects, 3-4 degrees . For movements, the coefficients of variation of angular velocities were about 10% between-days, and could to a great part be explained by differences in work rate. Between-subjects variability was higher, 20-40%. The variability was larger at low velocities than at high ones. The precision of the measured positions was good, expressed as small between-days and between-subjects variability. For movements, the between-days variability was also small, while there was a larger between-subjects variability. The imprecision of goniometry is consequently lower and comparable with inclinometry but lower than for EMG. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Electromyography & Kinesiology
volume
19
issue
5
pages
1005 - 1012
publisher
Elsevier
external identifiers
  • wos:000271357400032
  • pmid:18760937
  • scopus:68949167529
ISSN
1873-5711
DOI
10.1016/j.jelekin.2008.07.003
language
English
LU publication?
yes
id
518f3ed8-e0c4-439e-b5cb-675a2d71a629 (old id 1243568)
alternative location
http://www.ncbi.nlm.nih.gov/pubmed/18760937?dopt=Abstract
date added to LUP
2008-10-03 14:40:07
date last changed
2017-03-26 04:25:42
@article{518f3ed8-e0c4-439e-b5cb-675a2d71a629,
  abstract     = {Goniometry of the wrist is a feasible method for studying wrist movements in most hand-intensive work. The precision and accuracy of the method per se is good. For the knowledge on validity of field measurements, the size of imprecision is of importance. This study evaluated this condition during standardized circumstances. Six women performed three different hand-intensive work tasks: 'materials picking', 'light assembly', and 'heavy assembly', repeated during three different days. Variance components between-days (within subjects) and between-subjects were derived for positions (flexion/extension and deviation) and movements, including angular velocities, % of time with very low velocity (&lt;1 degrees /s), as well as repetitiveness. For positions, the average standard deviations in the three tasks were, both between-days and between-subjects, 3-4 degrees . For movements, the coefficients of variation of angular velocities were about 10% between-days, and could to a great part be explained by differences in work rate. Between-subjects variability was higher, 20-40%. The variability was larger at low velocities than at high ones. The precision of the measured positions was good, expressed as small between-days and between-subjects variability. For movements, the between-days variability was also small, while there was a larger between-subjects variability. The imprecision of goniometry is consequently lower and comparable with inclinometry but lower than for EMG.},
  author       = {Balogh, Istvan and Ohlsson, Kerstina and Nordander, Catarina and Skerfving, Staffan and Hansson, Gert-Åke},
  issn         = {1873-5711},
  language     = {eng},
  number       = {5},
  pages        = {1005--1012},
  publisher    = {Elsevier},
  series       = {Journal of Electromyography & Kinesiology},
  title        = {Precision of measurements of physical workload during standardized manual handling part III: Goniometry of the wrists.},
  url          = {http://dx.doi.org/10.1016/j.jelekin.2008.07.003},
  volume       = {19},
  year         = {2009},
}