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Exploring physical exposures and identifying high-risk work tasks within the floor layer trade
Jamie McGaha1, Kim Miller1, Alexis Descatha2
1Washington University School of Medicine, Saint Louis, Missouri, USA.
Applied Ergonomics
|November 27, 2013
Summary
Floor layers face significant physical risks, including awkward postures and high forces, contributing to musculoskeletal disorders. This study quantifies these occupational exposures for the first time.
Area of Science:
- Occupational Health
- Ergonomics
- Musculoskeletal Disorders
Background:
- Floor layers report high rates of musculoskeletal disorders.
- Limited research exists on specific work exposures for this trade.
- Understanding physical demands is crucial for injury prevention.
Purpose of the Study:
- To objectively describe physical exposures during floor laying tasks.
- To identify specific tasks and postures associated with high risk.
- To provide data for developing targeted ergonomic interventions.
Main Methods:
- Analysis of 45 videos from 32 floor layers using Multimedia-Video Task Analysis software.
- Quantification of time in task, forces, postures, and repetitive hand movements.
- Utilized WISHA checklists to establish exposure thresholds.
Main Results:
- 91% of workers exceeded caution thresholds for at least one exposure.
- High exposures were observed across multiple body parts.
- Prolonged kneeling, poor neck/low back postures, and frequent hand exertions were noted.
Conclusions:
- Floor layers encounter prolonged awkward postures and high physical forces.
- These exposures likely contribute to the high incidence of musculoskeletal disorders in the trade.
- Findings highlight the need for ergonomic improvements in floor laying practices.
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