Resource:Cumulative Trauma Disorders - Risk Factors and Controls

Risk Factors

  • Repetitive motion (above 1,000 times per shift)
  • Forceful exertions
  • Non-neutral posture
  • Mechanical stress
  • Cold
  • Vibration
  • Gloves
  • Tool sizing

Controlling Factors

  • Alter tools
  • Move the part
  • Keep cutting edges sharp
  • Power with motors
  • Use jigs, clamps, etc.
  • Cylindrical handles
  • Use levers not finger push buttons
  • Increase number of different job tasks
  • Automate
  • Workstation designed as adjustable
  • Place tools/materials between shoulder and waist
  • Rounded/padded edges to rest elbow/forearm
  • Ergonomic adjustable chairs
  • Use jigs/fixtures to hold piece Allow rest breaks
  • Bend tool not the wrist
  • Keep tool weight low
  • Tool grip proper size and shape
  • Handle length minimum of 4 inches
  • Spring loaded pliers and scissors
  • Provide large triggers
  • Non-porous, non-slip, non-conductive tool handles
  • Use power grip when possible
  • Protect from heat, cold and vibration
  • Rotate jobs
  • Require rest breaks
  • Exercise programs
  • Training
  • Medical monitoring