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Related Experiment Videos

Brick handling: a case study.

R D Webb1, J Handyside

  • 1Ergonomics Unit, School of Human Biology, University of Guelph, Guelph, Ontario, Canada.

Applied Ergonomics
|September 1, 1982
PubMed
Summary
This summary is machine-generated.

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Slight changes in brick size increased manual handling workload. Modified grip patterns led to greater physical exertion and fatigue during brick loading and unloading tasks.

Area of Science:

  • Ergonomics
  • Occupational Health
  • Biomechanics

Background:

  • Manual handling of bricks is a common construction task.
  • Brick dimensions can influence handling ergonomics and worker fatigue.

Purpose of the Study:

  • To investigate the impact of altered brick dimensions on perceived workload and physiological responses during manual handling.
  • To identify changes in grip patterns and their effect on physical strain.

Main Methods:

  • A laboratory study was conducted involving manual loading and unloading of bricks with changed dimensions.
  • Measurements included grip patterns, upper body movement, chest-muscle activity, and heart rate.
  • Subjective fatigue ratings were collected from participants.

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Main Results:

  • A small change in brick dimensions necessitated altered grip patterns for maintaining unloading rate.
  • These altered grips led to increased upper body movement and chest-muscle activity.
  • Higher heart rates and increased subjective fatigue ratings were observed.

Conclusions:

  • Brick dimension variations significantly impact manual handling ergonomics.
  • Altered grip strategies increase physiological load and worker fatigue.
  • Optimizing brick dimensions is crucial for reducing occupational strain in construction.