Association between long-term static postures exposure and musculoskeletal disorders among university employees: A viewpoint of inflammatory pathways

BackgroundMusculoskeletal disorders (MSDs) are critical occupational and social problems. With the improvement of production mechanization and automation, and the widespread application of computers, more occupations are exposed to static postures and load. This study explored the role of inflammati...

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Main Authors: Yidan Dong, Ping Jiang, Xu Jin, Nanyu Jiang, Wenchu Huang, Yu Peng, Yuhong Shen, Lihua He, Mikael Forsman, Liyun Yang
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-12-01
Series:Frontiers in Public Health
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fpubh.2022.1055374/full
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author Yidan Dong
Ping Jiang
Xu Jin
Nanyu Jiang
Wenchu Huang
Yu Peng
Yuhong Shen
Lihua He
Mikael Forsman
Mikael Forsman
Liyun Yang
Liyun Yang
author_facet Yidan Dong
Ping Jiang
Xu Jin
Nanyu Jiang
Wenchu Huang
Yu Peng
Yuhong Shen
Lihua He
Mikael Forsman
Mikael Forsman
Liyun Yang
Liyun Yang
author_sort Yidan Dong
collection DOAJ
description BackgroundMusculoskeletal disorders (MSDs) are critical occupational and social problems. With the improvement of production mechanization and automation, and the widespread application of computers, more occupations are exposed to static postures and load. This study explored the role of inflammation in the association between static postures exposure and MSDs.MethodsThis study adopted a prospective nested case-control design in which 66 lower back MSDs cases and 66 healthy controls were selected from a cohort study of university employees. The personal information, postural load, musculoskeletal symptoms, pressure pain thresholds (PPTs), and inflammatory cytokines were collected. Logistic and linear regressions were used to investigate the association among postural load, inflammatory cytokines, and lower back MSDs. Mediation analysis was used to calculate the mediation effect.ResultsThe results of logistic and linear regressions showed that postural load and inflammatory cytokines were positively associated with lower back MSDs (P < 0.05), and postural load was positively associated with inflammatory cytokines (P < 0.05). Further, mediation analysis showed that the mediation effect of postural load on the lower back MSDs through TNF-α was 0.073 (95%CI: 0.025–0.128), and the mediation effect of posture load on the lower back MSDs through IL-6 was 0.098 (95%CI: 0.041–0.179), respectively.ConclusionStatic postures were associated with the occurrence of MSDs through inflammatory cytokines, and low-level inflammation may be a critical early event in the generation of MSDs. This study may help bridge the gap of potential mechanisms linking static postures to increased risks of MSDs, and provide new evidence for targeted protection against the global increasing MSDs.
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spelling doaj.art-f57551d3315b4b88b84b266a0bf6ca802022-12-22T03:45:25ZengFrontiers Media S.A.Frontiers in Public Health2296-25652022-12-011010.3389/fpubh.2022.10553741055374Association between long-term static postures exposure and musculoskeletal disorders among university employees: A viewpoint of inflammatory pathwaysYidan Dong0Ping Jiang1Xu Jin2Nanyu Jiang3Wenchu Huang4Yu Peng5Yuhong Shen6Lihua He7Mikael Forsman8Mikael Forsman9Liyun Yang10Liyun Yang11Department of Occupational and Environmental Health, School of Public Health, Peking University, Beijing, ChinaDepartment of Occupational and Environmental Health, School of Public Health, Peking University, Beijing, ChinaDepartment of Occupational and Environmental Health, School of Public Health, Peking University, Beijing, ChinaDepartment of Occupational and Environmental Health, School of Public Health, Peking University, Beijing, ChinaDepartment of Occupational and Environmental Health, School of Public Health, Peking University, Beijing, ChinaDepartment of Occupational and Environmental Health, School of Public Health, Peking University, Beijing, ChinaInstitute of Quartermaster Engineering & Technology, Beijing, ChinaDepartment of Occupational and Environmental Health, School of Public Health, Peking University, Beijing, ChinaDivision of Ergonomics, School of Engineering Sciences in Chemistry, Biotechnology, and Health, Royal Institute of Technology, Huddinge, SwedenUnit of Occupational Medicine, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, SwedenDivision of Ergonomics, School of Engineering Sciences in Chemistry, Biotechnology, and Health, Royal Institute of Technology, Huddinge, SwedenUnit of Occupational Medicine, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, SwedenBackgroundMusculoskeletal disorders (MSDs) are critical occupational and social problems. With the improvement of production mechanization and automation, and the widespread application of computers, more occupations are exposed to static postures and load. This study explored the role of inflammation in the association between static postures exposure and MSDs.MethodsThis study adopted a prospective nested case-control design in which 66 lower back MSDs cases and 66 healthy controls were selected from a cohort study of university employees. The personal information, postural load, musculoskeletal symptoms, pressure pain thresholds (PPTs), and inflammatory cytokines were collected. Logistic and linear regressions were used to investigate the association among postural load, inflammatory cytokines, and lower back MSDs. Mediation analysis was used to calculate the mediation effect.ResultsThe results of logistic and linear regressions showed that postural load and inflammatory cytokines were positively associated with lower back MSDs (P < 0.05), and postural load was positively associated with inflammatory cytokines (P < 0.05). Further, mediation analysis showed that the mediation effect of postural load on the lower back MSDs through TNF-α was 0.073 (95%CI: 0.025–0.128), and the mediation effect of posture load on the lower back MSDs through IL-6 was 0.098 (95%CI: 0.041–0.179), respectively.ConclusionStatic postures were associated with the occurrence of MSDs through inflammatory cytokines, and low-level inflammation may be a critical early event in the generation of MSDs. This study may help bridge the gap of potential mechanisms linking static postures to increased risks of MSDs, and provide new evidence for targeted protection against the global increasing MSDs.https://www.frontiersin.org/articles/10.3389/fpubh.2022.1055374/fullmusculoskeletal disorderslower back paininflammatory cytokinestatic posturesnested case-control studyuniversity employees
spellingShingle Yidan Dong
Ping Jiang
Xu Jin
Nanyu Jiang
Wenchu Huang
Yu Peng
Yuhong Shen
Lihua He
Mikael Forsman
Mikael Forsman
Liyun Yang
Liyun Yang
Association between long-term static postures exposure and musculoskeletal disorders among university employees: A viewpoint of inflammatory pathways
Frontiers in Public Health
musculoskeletal disorders
lower back pain
inflammatory cytokine
static postures
nested case-control study
university employees
title Association between long-term static postures exposure and musculoskeletal disorders among university employees: A viewpoint of inflammatory pathways
title_full Association between long-term static postures exposure and musculoskeletal disorders among university employees: A viewpoint of inflammatory pathways
title_fullStr Association between long-term static postures exposure and musculoskeletal disorders among university employees: A viewpoint of inflammatory pathways
title_full_unstemmed Association between long-term static postures exposure and musculoskeletal disorders among university employees: A viewpoint of inflammatory pathways
title_short Association between long-term static postures exposure and musculoskeletal disorders among university employees: A viewpoint of inflammatory pathways
title_sort association between long term static postures exposure and musculoskeletal disorders among university employees a viewpoint of inflammatory pathways
topic musculoskeletal disorders
lower back pain
inflammatory cytokine
static postures
nested case-control study
university employees
url https://www.frontiersin.org/articles/10.3389/fpubh.2022.1055374/full
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