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An iPhone application for upper arm posture and movement measurements
KTH, School of Technology and Health (STH), Health Systems Engineering, Ergonomics. (Ergonomi, Ergonomics)ORCID iD: 0000-0001-7285-824X
2017 (English)In: Applied Ergonomics, ISSN 0003-6870, E-ISSN 1872-9126, Vol. 65, p. 492-500Article in journal (Refereed) Published
Abstract [en]

There is a need for objective methods for upper arm elevation measurements for accurate and convenient risk assessments. The aims of this study were (i) to compare a newly developed iOS application (iOS) for measuring upper arm elevation and angular velocity with a reference optical tracking system (OTS), and (ii) to compare the accuracy of the iOS incorporating a gyroscope and an accelerometer with using only an accelerometer, which is standard for inclinometry. The iOS-OTS limits of agreement for static postures (9 subjects) were -4.6° and 4.8°. All root mean square differences in arm swings and two simulated work tasks were <6.0°, and all mean correlation coefficients were >0.98. The mean absolute iOS-OTS difference of median angular velocity was <13.1°/s, which was significantly lower than only using an accelerometer (<43.5°/s). The accuracy of this iOS application compares well to that of today's research methods and it can be useful for practical upper arm measurements.

Place, publisher, year, edition, pages
Elsevier, 2017. Vol. 65, p. 492-500
Keywords [en]
work-related musculoskeletal disorders, accelerometer, gyroscope
National Category
Medical Ergonomics
Identifiers
URN: urn:nbn:se:kth:diva-212177DOI: 10.1016/j.apergo.2017.02.012ISI: 000408597400050Scopus ID: 2-s2.0-85014522150OAI: oai:DiVA.org:kth-212177DiVA, id: diva2:1133758
Funder
AFA Insurance, 120237
Note

QC 20170817

Available from: 2017-08-16 Created: 2017-08-16 Last updated: 2017-09-27Bibliographically approved

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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf