hig.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard-cite-them-right
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • sv-SE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • de-DE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
The trade-off between meticulousness and methodological variance in normalization of low back EMG
University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences. University of Gävle, Centre for Musculoskeletal Research.ORCID iD: 0000-0003-2939-0236
University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences. University of Gävle, Centre for Musculoskeletal Research.ORCID iD: 0000-0003-1443-6211
2012 (English)In: Work: A journal of Prevention, Assesment and rehabilitation, ISSN 1051-9815, E-ISSN 1875-9270, Vol. 41, no Suppl. 1, 2307-2314 p.Article in journal (Refereed) Published
Abstract [en]

Background: Normalization of surface electromyography (EMG) is a common and recommended practice, however this methodological step itself introduces variability to a data set. Quantification of this variance is necessary to correctly interpret overall EMG variability. This information is also paramount to identifying experimentally and clinically relevant normalization task(s) which minimize induced variance yet are time-efficient. Purpose: The goal of this study was to quantify the within-day variance of two commonly reported, sub-maximal tasks utilised for low back EMG normalization: one collected with a high degree of meticulousness, and the other collected in a more rapid manner. Results: Only minimal differences were seen between tasks in the magnitude of within-day variance for EMG amplitude at all recording sites, save the right-side L5 location, which showed a significant difference (p=0.020). For trunk posture, within-day variance for the highly meticulous tasks was significantly higher than for the less-meticulous task (p=0.011). Conclusion: A less meticulous sub-maximal normalization task performed in a standing position was equal or superior to a more meticulously collected task in terms of kinematic task repeatability and within-day EMG variance. These findings are encouraging for field study applications where meticulous methods are not feasible, and provide a time saving strategy for lab studies.

Place, publisher, year, edition, pages
2012. Vol. 41, no Suppl. 1, 2307-2314 p.
Keyword [en]
variance components, electromyography, work related musculoskeletal disorders, exposure assessment, submaximal
National Category
Environmental Health and Occupational Health
Identifiers
URN: urn:nbn:se:hig:diva-11543DOI: 10.3233/wor-2012-0457-2307ISI: 000306361802072PubMedID: 22317060Scopus ID: 2-s2.0-84859812483OAI: oai:DiVA.org:hig-11543DiVA: diva2:505281
Available from: 2012-02-23 Created: 2012-02-23 Last updated: 2016-06-28Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textPubMedScopus

Search in DiVA

By author/editor
Jackson, JennieMathiassen, Svend Erik
By organisation
Department of Occupational and Public Health SciencesCentre for Musculoskeletal Research
In the same journal
Work: A journal of Prevention, Assesment and rehabilitation
Environmental Health and Occupational Health

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 1052 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard-cite-them-right
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • sv-SE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • de-DE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf