Force variability and musculoskeletal pain in blue-collar workers

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Abstrakt

Blue-collar workers with physically demanding occupations have a high prevalence of musculoskeletal disorders accompanied by pain. Previous research has suggested that reduced motor variability may increase the risk of developing musculoskeletal disorders. Here we present preliminary data from an ongoing cross-sectional examination of physical performance in elderly manual workers. This paper includes data from 20 male workers (age 52–70 years). Handgrip force variability was measured using a digital hand dynamometer during an endurance trial where the workers exerted 30% of their maximal isometric contraction force until task failure. Absolute variability (standard deviation), relative variability (coefficient of variation), and the complexity of the force signal (sample entropy) were computed. The workers were dichotomized into two groups: no to mild pain/discomfort (No pain) and moderate to severe pain/discomfort (Pain) to investigate the effects of musculoskeletal pain on force variability. This dichotomy was done based on the rating of pain/discomfort within the last seven days, where workers reporting ≥3 score in the upper extremities were allocated to the pain group (Pain, n = 9, No pain, n = 11). No significant between-group differences in force variability during the endurance trial were found. Both absolute and relative variability increased significantly over time. These preliminary data do not support a difference in force variability between blue-collar workers with or without musculoskeletal pain or discomfort in the upper extremities.

OriginalsprogEngelsk
TitelProceedings of the 20th Congress of the International Ergonomics Association, IEA 2018 : Volume IX: Aging, Gender and Work, Anthropometry, Ergonomics for Children and Educational Environments
RedaktørerSebastiano Bagnara, Riccardo Tartaglia, Sara Albolino, Yushi Fujita, Thomas Alexander
Antal sider9
ForlagSpringer
Publikationsdato1 jan. 2019
Sider59-67
ISBN (Trykt)978-3-319-96064-7
ISBN (Elektronisk)978-3-319-96065-4
DOI
StatusUdgivet - 1 jan. 2019
Begivenhed20th Congress of the International Ergonomics Association, IEA 2018 - Florence, Italien
Varighed: 26 aug. 201830 aug. 2018

Konference

Konference20th Congress of the International Ergonomics Association, IEA 2018
LandItalien
ByFlorence
Periode26/08/201830/08/2018
NavnAdvances in Intelligent Systems and Computing
Vol/bind826
ISSN2194-5357

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  • Citationsformater

    Norheim, K. L., Bønløkke, J. H., Omland, Ø., Samani, A., & Madeleine, P. (2019). Force variability and musculoskeletal pain in blue-collar workers. I S. Bagnara, R. Tartaglia, S. Albolino, Y. Fujita, & T. Alexander (red.), Proceedings of the 20th Congress of the International Ergonomics Association, IEA 2018: Volume IX: Aging, Gender and Work, Anthropometry, Ergonomics for Children and Educational Environments (s. 59-67). Springer. Advances in Intelligent Systems and Computing, Bind. 826 https://doi.org/10.1007/978-3-319-96065-4_9