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Workplace interventions to improve sitting posture: A systematic review.

Paul Alan Swinton1, Kay Cooper1, Elizabeth Hancock1

  • 1School of Health Sciences, Robert Gordon University, Garthdee Road, Aberdeen AB107QG, United Kingdom.

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|June 26, 2017
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Ergonomic workplace interventions show potential for improving workers' gross sitting posture. However, the current evidence quality is low, necessitating further high-quality research with longer follow-up periods.

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Area of Science:

  • Occupational Health
  • Ergonomics
  • Public Health

Background:

  • Prolonged sitting at visual display terminals (VDTs) is prevalent in modern workplaces.
  • Poor sitting posture among VDT workers can lead to musculoskeletal discomfort and health issues.
  • Effective workplace interventions are needed to mitigate the negative effects of sedentary work.

Purpose of the Study:

  • To systematically evaluate the effectiveness of workplace interventions designed to improve the sitting posture of VDT workers.
  • To synthesize evidence from various study designs on the impact of ergonomic interventions on sitting posture.

Main Methods:

  • A systematic review of randomized controlled trials, non-randomized controlled trials, and single-group intervention trials was conducted.
  • Studies published between January 2005 and February 2016 were identified through searches of nine databases.
  • Data were narratively summarized using the GRADE framework due to heterogeneity; no meta-analysis was performed.

Main Results:

  • Twelve studies involving 1201 participants met the inclusion criteria, featuring diverse ergonomic workplace interventions.
  • Medium to large positive improvements were observed in gross sitting posture in most studies.
  • Findings for specific, localized posture assessments were mixed, and overall evidence quality was rated as low or very low.

Conclusions:

  • Limited, low-quality evidence suggests that ergonomic workplace interventions can enhance gross sitting posture.
  • High-quality research with longer follow-up and advanced assessment methods is required to confirm these findings.
  • Further investigation is needed across various intervention types to establish robust recommendations for improving VDT workers' posture.