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

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

Part of the book series: Advances in Intelligent Systems and Computing ((AISC,volume 820))

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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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Author information

Authors and Affiliations

  1. University of Wisconsin-Madison, Madison, WI, 53706, USA

    Oguz Akkas & Robert G. Radwin

  2. Washington State Department of Labor and Industries, Olympia, WA, 44000, USA

    Stephen Bao & Jia-Hua Lin

  3. University of California-San Francisco, San Francisco, CA, 94143, USA

    Carisa Harris-Adamson & David Rempel

  4. National Institute for Occupational Safety and Health, Cincinnati, OH, 45226, USA

    Alysha Meyers

Authors
  1. Oguz Akkas
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  2. Stephen Bao
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  3. Carisa Harris-Adamson
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  4. Jia-Hua Lin
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  5. Alysha Meyers
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  6. David Rempel
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  7. Robert G. Radwin
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Corresponding author

Correspondence to Robert G. Radwin .

Editor information

Editors and Affiliations

  1. University of the Republic of San Marino, San Marino, San Marino

    Sebastiano Bagnara

  2. Centre for Clinical Risk Management and Patient Safety, Tuscany Region, Florence, Italy

    Riccardo Tartaglia

  3. Centre for Clinical Risk Management and Patient Safety, Tuscany Region, Florence, Italy

    Sara Albolino

  4. Fraunhofer FKIE, Bonn, Nordrhein-Westfalen, Germany

    Thomas Alexander

  5. International Ergonomics Association, Tokyo, Japan

    Yushi Fujita

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Akkas, O. et al. (2019). The Speed Calculated Hand Activity Level (HAL) Matches Observer Estimates Better Than the Frequency Calculated HAL. In: Bagnara, S., Tartaglia, R., Albolino, S., Alexander, T., Fujita, Y. (eds) Proceedings of the 20th Congress of the International Ergonomics Association (IEA 2018). IEA 2018. Advances in Intelligent Systems and Computing, vol 820. Springer, Cham. https://doi.org/10.1007/978-3-319-96083-8_71

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