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Associations between biopsychosocial factors and chronic upper limb pain among slaughterhouse workers: cross sectional study

BACKGROUND: Knowledge of factors associated with chronic pain is necessary for preventive strategies. The present study investigates biopsychosocial differences, with specific focus on rate of force development (RFD) and work ability, between workers with and without chronic upper limb pain. METHODS...

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Autores principales: Sundstrup, Emil, Jakobsen, Markus D., Brandt, Mikkel, Jay, Kenneth, Aagaard, Per, Andersen, Lars L.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4769589/
https://www.ncbi.nlm.nih.gov/pubmed/26919829
http://dx.doi.org/10.1186/s12891-016-0953-7
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author Sundstrup, Emil
Jakobsen, Markus D.
Brandt, Mikkel
Jay, Kenneth
Aagaard, Per
Andersen, Lars L.
author_facet Sundstrup, Emil
Jakobsen, Markus D.
Brandt, Mikkel
Jay, Kenneth
Aagaard, Per
Andersen, Lars L.
author_sort Sundstrup, Emil
collection PubMed
description BACKGROUND: Knowledge of factors associated with chronic pain is necessary for preventive strategies. The present study investigates biopsychosocial differences, with specific focus on rate of force development (RFD) and work ability, between workers with and without chronic upper limb pain. METHODS: Eighty-two male slaughterhouse workers, 49 with chronic upper limb pain and 33 pain-free controls participated in the study. Maximal muscle strength, RFD, and muscle activity was determined from fast and forceful maximal voluntary contractions for the shoulder and hand. Participants filled out a questionnaire on work ability (work ability index), work disability (Work module of DASH questionnaire), fear avoidance, and self-rated health. Additionally, pressure pain threshold (PPT) was measured in muscles of the arm, shoulder and lower leg. RESULTS: Muscle strength and RFD (determined within time intervals of 30, 50, 100, and 200 ms relative to onset of contraction) was 28 % and 58–78 % lower, respectively, in workers with chronic pain compared with pain-free controls, and paralleled by reduced muscle activity (all p < 0.001). Workers with chronic pain had lower PPT of the arm, shoulder and lower leg (p < 0.01), and reported impaired work ability index score and general health along with higher work disability and fear avoidance compared with controls (all p < 0.0001). No differences were observed between the groups in regard to age, BMI, physical activity level, job position and duration of slaughterhouse work (all p > 0.4). CONCLUSIONS: Chronic upper limb pain was paralleled by reduced neuromuscular function of the shoulder and hand along with impaired work ability, work disability and general health. Future studies on chronic pain management at the workplace should carefully consider the biopsychosocial nature of pain when designing and implementing preventive strategies.
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spelling pubmed-47695892016-02-28 Associations between biopsychosocial factors and chronic upper limb pain among slaughterhouse workers: cross sectional study Sundstrup, Emil Jakobsen, Markus D. Brandt, Mikkel Jay, Kenneth Aagaard, Per Andersen, Lars L. BMC Musculoskelet Disord Research Article BACKGROUND: Knowledge of factors associated with chronic pain is necessary for preventive strategies. The present study investigates biopsychosocial differences, with specific focus on rate of force development (RFD) and work ability, between workers with and without chronic upper limb pain. METHODS: Eighty-two male slaughterhouse workers, 49 with chronic upper limb pain and 33 pain-free controls participated in the study. Maximal muscle strength, RFD, and muscle activity was determined from fast and forceful maximal voluntary contractions for the shoulder and hand. Participants filled out a questionnaire on work ability (work ability index), work disability (Work module of DASH questionnaire), fear avoidance, and self-rated health. Additionally, pressure pain threshold (PPT) was measured in muscles of the arm, shoulder and lower leg. RESULTS: Muscle strength and RFD (determined within time intervals of 30, 50, 100, and 200 ms relative to onset of contraction) was 28 % and 58–78 % lower, respectively, in workers with chronic pain compared with pain-free controls, and paralleled by reduced muscle activity (all p < 0.001). Workers with chronic pain had lower PPT of the arm, shoulder and lower leg (p < 0.01), and reported impaired work ability index score and general health along with higher work disability and fear avoidance compared with controls (all p < 0.0001). No differences were observed between the groups in regard to age, BMI, physical activity level, job position and duration of slaughterhouse work (all p > 0.4). CONCLUSIONS: Chronic upper limb pain was paralleled by reduced neuromuscular function of the shoulder and hand along with impaired work ability, work disability and general health. Future studies on chronic pain management at the workplace should carefully consider the biopsychosocial nature of pain when designing and implementing preventive strategies. BioMed Central 2016-02-27 /pmc/articles/PMC4769589/ /pubmed/26919829 http://dx.doi.org/10.1186/s12891-016-0953-7 Text en © Sundstrup et al. 2016 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
spellingShingle Research Article
Sundstrup, Emil
Jakobsen, Markus D.
Brandt, Mikkel
Jay, Kenneth
Aagaard, Per
Andersen, Lars L.
Associations between biopsychosocial factors and chronic upper limb pain among slaughterhouse workers: cross sectional study
title Associations between biopsychosocial factors and chronic upper limb pain among slaughterhouse workers: cross sectional study
title_full Associations between biopsychosocial factors and chronic upper limb pain among slaughterhouse workers: cross sectional study
title_fullStr Associations between biopsychosocial factors and chronic upper limb pain among slaughterhouse workers: cross sectional study
title_full_unstemmed Associations between biopsychosocial factors and chronic upper limb pain among slaughterhouse workers: cross sectional study
title_short Associations between biopsychosocial factors and chronic upper limb pain among slaughterhouse workers: cross sectional study
title_sort associations between biopsychosocial factors and chronic upper limb pain among slaughterhouse workers: cross sectional study
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4769589/
https://www.ncbi.nlm.nih.gov/pubmed/26919829
http://dx.doi.org/10.1186/s12891-016-0953-7
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