1. Ergonomics
Making the job fit the worker

2. Ergonomics looks at: Work station Tools Motions Physical condition
Physical limitations
Environment 1

3. Musculoskeletal disorders
Musculoskeletal disorders = MSDs 2a

4. MSD symptoms Dull, aching sensation Discomfort with movements
Tenderness to the touch
Burning sensation
Pain
Tingling
Cramping
Stiffness 2b

5. Common MSDs Tendinitis Tenosynovitis Trigger finger Raynaud’s syndrome
De Quervain’s disease
Carpal tunnel syndrome 2c

6. Workplace risk factors
Repetitive motions
Fixed / awkward postures
Vibration
Force
Twisting / bending
Elevation of elbows
Lifting 3a

7. Workplace risk factors
Inappropriate tools
Continuous contact
Restricted clearance
Improper seating/ support
Bad body mechanics
Inadjustable equipment 3b

8. Identify risk factors Management/employee involvement
Audit work stations
Audit procedures 4a

9. Engineering controls Preferred method Work station design Tool design
Equipment design 5a

10. Work station design Provide adequate: Work space Work height Support
Storage space
Machine controls 6a

11. Work station design Reduce static loading Raise / lower working height
Remove hard / sharp edges
Provide mechanical advantages
Insulate heat / cold 7a

12. Work station redesign Provide seating / support
Improve material orientation
Improve layout 7b

13. Tool selection should minimize:
Awkward, bent grip
Vibration
Excessive grip strength
Awkward positions to exert force
Repetitive motions 8a

14. Administrative controls
Job rotation
Shift length
Overtime management
Rest breaks
Production rates 9a

15. Work practice controls
Use proper techniques
Avoid unnecessary steps
Job training
Exercise/ conditioning
10a

16. Medical management Early reporting & treatment Symptoms survey
Medical treatment
Recordkeeping
11a

17. Back disorders Sprains Strains Ruptured/ slipped disks Muscle spasms

18. Back pain factors Improper posture Poor physical condition
Improper lifting
12b

19. Proper lifting Size up the load Bend your knees Do not twist
Clear path
Lower slowly
Push carts/dollies
12c

20. Summary Define ergonomics MSDs Risk factors Controls
Medical management
Proper lifting
13a