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Physical load exposure at construction sites.

Bernd Hartmann1, Andreas G Fleischer

  • 1Construction Accident Insurances, Hostenwall 8-9, D-20355 Hamburg, Germany. Bernd.Hartmann@bg21.bgnet.de

Scandinavian Journal of Work, Environment & Health
|December 21, 2005
PubMed
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Construction workers face significant physical workload, especially scaffolders, bricklayers, and carpenters, leading to high spinal loads. Preventive measures like ergonomic improvements and training are crucial for reducing musculoskeletal disorders.

Area of Science:

  • Occupational health and safety
  • Ergonomics
  • Construction industry safety

Background:

  • Musculoskeletal disorders (MSDs) are a significant concern in the construction industry.
  • Understanding the physical workload associated with different construction tasks is crucial for preventing MSDs.

Purpose of the Study:

  • To analyze work-related causes of MSDs in construction occupations.
  • To investigate the structure of physical workload.
  • To rank construction tasks based on the load on the lumbar spine.

Main Methods:

  • Utilized an observation instrument and a data retrieval system to create a large database.
  • Analyzed data from 340 construction workers (bricklayers, scaffolders, carpenters, plumbers, painters).
  • Assessed manual materials handling, biomechanical pressure on lumbar disc L5/S1, and postures (kneeling, squatting, bending, overhead).

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Main Results:

  • Scaffolders, bricklayers, and carpenters frequently handled weights over 10 kg.
  • High pressures on lumbar disc L5/S1 were observed in scaffolders and bricklayers.
  • Tasks involving prolonged bent postures (bricklaying), kneeling (painters, plumbers, carpenters), and overhead positions (painters) were common.

Conclusions:

  • Construction tasks can be ranked according to load exposure.
  • Preventive measures, including ergonomic design, organizational changes, training, and healthcare, are necessary.
  • The study highlights the need for targeted interventions to mitigate physical workload and prevent MSDs in construction.