Dataset Information

Associations of objectively measured total duration and maximum bout length of standing at work with lower-extremity pain intensity: a 2-year follow-up of construction and healthcare workers.

ABSTRACT:

Background

Musculoskeletal disorders are among the major reasons for years lived with disability. Approximately one third of the European working population report lower-extremity discomfort and many attribute these discomforts to work-related factors. Employees in the healthcare and construction sectors reports high levels of lower-extremity pain and commonly relate the pain to their profession. These workers spend a large part of their workday standing. Periods of prolonged standing is suggested to increase lower-extremity symptoms, but this cannot be concluded on, since limited evidence is available from longitudinal studies using objective measures. This study aimed to determine possible associations between objectively measured total duration and maximum bout length of static- and dynamic standing at work and lower-extremity pain intensity (LEPi) among Norwegian construction- and healthcare workers.

Methods

One-hundred and twenty-three construction and healthcare workers wore two accelerometers for up to four consecutive days, to establish standing behavior at baseline. The participants reported LEPi (Likert scale 0-9) for the preceding 4 weeks at baseline and after 6, 12, 18, and 24?months. We investigated associations between standing at work and average and change in LEPi using linear mixed models with significance level p???0.05.

Results

Total duration of static- and dynamic standing showed weak associations with average LEPi, for the total sample and for construction workers. Maximum bout of static- and dynamic standing was associated with average LEPi in construction workers, but not in healthcare workers. Furthermore, we found no associations between standing and change in LEPi over the 2-year follow-up in any of our analyses.

Conclusions

This study indicate that objectively measured standing is associated with average LEPi over 2-years follow-up in construction workers, and that maximal bout of standing have a stronger association to LEPi than total duration. For every 10?min added to the maximal length of continuous standing during an average workday, we found approximately one unit increase in pain on a 0-9 scale. The lack of significant findings in analyses on healthcare workers suggest that the association between standing and LEPi depend on work-tasks, gender and/or other sector-specific factors.

SUBMITTER: Lunde LK

PROVIDER: S-EPMC7791765 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature

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Publications

Associations of objectively measured total duration and maximum bout length of standing at work with lower-extremity pain intensity: a 2-year follow-up of construction and healthcare workers.

Lunde Lars-Kristian LK Merkus Suzanne S Koch Markus M Knardahl Stein S Wærsted Morten M Veiersted Kaj Bo KB

BMC musculoskeletal disorders 20210107 1

<h4>Background</h4>Musculoskeletal disorders are among the major reasons for years lived with disability. Approximately one third of the European working population report lower-extremity discomfort and many attribute these discomforts to work-related factors. Employees in the healthcare and construction sectors reports high levels of lower-extremity pain and commonly relate the pain to their profession. These workers spend a large part of their workday standing. Periods of prolonged standing is ...[more]

PMID: 33413254

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Project description:Importance:The long-term association between sleep duration and mental health in children is currently unknown. Objective:To investigate the prospective associations between sleep duration and symptoms of emotional and behavioral disorders at ages 6, 8, 10, and 12 years. Design, Setting, and Participants:This population-based cohort study obtained data from the Trondheim Early Secure Study in Trondheim, Norway. A representative, stratified random sample of children born between January 1, 2003, and December 31, 2004, were invited to participate. Participants were followed up biennially from age 4 years (2007-2008) to 12 years (2013-2014). Data analysis was conducted from January 2, 2019, to May 28, 2019. Main Outcomes and Measures:Sleep duration was assessed with 1 week of continuous use of a triaxial accelerometer. Symptoms of emotional (anxiety and depression) and behavioral (oppositional defiant, conduct, and attention-deficit/hyperactivity) disorders were measured by semistructured clinical interviews (using the Preschool Age Psychiatric Assessment and the Child and Adolescent Psychiatric Assessment) with parents (at all ages) and children (from age 8 years). Results:The analytical sample comprised 799 children (mean [SD] age at time point 2, 6.0 [0.2] years; 405 [50.7%] boys; and 771 [96.5%] Norwegian). Shorter sleep duration at age 6 years (? [unstandardized regression coefficient]?=?-0.44; 95% CI, -0.80 to -0.08; P?=?.02) and 8 years (??=?-0.47; 95% CI, -0.83 to -0.11; P?=?.01) forecasted symptoms of emotional disorders 2 years later. Comparatively short sleep duration at age 8 years (??=?-0.65; 95% CI,?-1.22 to -0.08; P?=?.03) and 10 years (??=?-0.58; 95% CI,?-1.07 to -0.08; P?=?.02) was associated with symptoms of behavioral disorders 2 years later among boys but not among girls at age 8 years (? =?-0.14; 95% CI,-?0.52 to 0.24; P?=?.48) or 10 years (??=?-0.05; 95% CI,?=?-0.49 to 0.40; P?=?.84). These associations were statistically significant among boys compared with girls at age 8 years (??21?=?13.26; P?<?.001) and 10 years (??21?=?10.25; P?=?.001). Symptoms of psychiatric disorders did not forecast sleep duration at any age. Conclusions and Relevance:This study found an association between short sleep duration and increased risk of future occurrence of emotional disorder symptoms in both boys and girls and between reduced sleep and behavioral disorder symptoms in boys. These results suggest that improving sleep in children may help protect against the development of symptoms of common psychiatric disorders and may be advantageous in the treatment of such disorders.

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Dataset Information

Associations of objectively measured total duration and maximum bout length of standing at work with lower-extremity pain intensity: a 2-year follow-up of construction and healthcare workers.

Background

Methods

Results

Conclusions

Publications

Associations of objectively measured total duration and maximum bout length of standing at work with lower-extremity pain intensity: a 2-year follow-up of construction and healthcare workers.

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