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Workshop: How to Diagnose and Treat a Work Related Musculoskeletal Disorder? Read chapter Read first chapter

2019 | OriginalPaper | Chapter

The Speed Calculated Hand Activity Level (HAL) Matches Observer Estimates Better Than the Frequency Calculated HAL

Authors : Oguz Akkas, Stephen Bao, Carisa Harris-Adamson, Jia-Hua Lin, Alysha Meyers, David Rempel, Robert G. Radwin

Published in: Proceedings of the 20th Congress of the International Ergonomics Association (IEA 2018)

Publisher: Springer International Publishing

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Abstract

Hand Activity Level (HAL) can be estimated from observations (HALO), calculated from exertion frequency, F and duty cycle D (HALF) or from speed, S and D (HALS). Data collected by prospective cohort studies were used to compare these methods. There was 75% agreement between HALO and HALS (HALS = 1.02 × HALO −0.2, R2 = 0.78, F(1,1003) = 43665, p < .001), but only 30% agreement between HALO and HALF (HALF = 0.21 × HALO + 2.2, R2 = 0.04, F(1,1003) = 71.71, p < .001). HALS was more consistent with HALO since both are dependent on speed, and because HALS can be automated, it is more objective than HALF or HALO in this sample.

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Metadata
Title
The Speed Calculated Hand Activity Level (HAL) Matches Observer Estimates Better Than the Frequency Calculated HAL
Authors
Oguz Akkas
Stephen Bao
Carisa Harris-Adamson
Jia-Hua Lin
Alysha Meyers
David Rempel
Robert G. Radwin
Copyright Year
2019
Book
Proceedings of the 20th Congress of the International Ergonomics Association (IEA 2018)

Print ISBN: 978-3-319-96082-1

Electronic ISBN: 978-3-319-96083-8

Copyright Year: 2019

DOI
https://doi.org/10.1007/978-3-319-96083-8_71

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