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Ergonomics. “Ergonomics is an applied science concerned with the design of workplaces, tools, and tasks that match the physiological, anatomical, and psychological characteristics and capabilities of the worker.” Vern Putz-Anderson
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“Ergonomics is an applied science concerned with the design of workplaces, tools, and tasks that match the physiological, anatomical, and psychological characteristics and capabilities of the worker.” Vern Putz-Anderson “The Goal of ergonomics is to ‘fit the job to the person,’ rather than making the person fit the job.” Ergotech “If it hurts when you are doing something, don’t do it.” Bill Black What is Ergonomics?
Dates back to Ramazzini 1700’s Gained significance during WWII for airplane cockpit layout Progressed slowly until the 80’s and 90’s with the advent of the computer and more efficient workplace design Now, guidelines are in place and greater use of technology Evolution of Ergonomics
Why do we care about Ergonomics? OSHA Employee Turnover ADA Quality Injured Workers Insurance Costs Increased Productivity Absenteeism
MSDs Contact with Objects Workplace Violence All Other Transportation Related Falls Musculoskelatal Disorders (MSDs)Represent 1 in 3 Lost Time Injuries Source: Bureau of Labor Statistics Annual Survey, 1996
0 2000 4000 6000 8000 10000 MSDs of the Back Upper Extremity MSDs Average Claim Average Costs per Claim ($) MSDs Cost Twice the Average Workers’ Compensation Claim Source: Workers’ Compensation data from Insurance Companies 1993
Types of Injuries • Muscle pain • Joint pain • Swelling • Numbness • Restricted motion • Repetitive stress injury • Repetitive motion injury • Cumulative trauma disorder • Musculoskeletal disorder
Target Regions • Back • Upper extremities • Lower extremities
MultidisciplinaryNature of Ergonomics • Anatomy and Physiology • Engineering Psychology • Engineering • Medicine • Anthropology • Biomechanics
Physical Size Endurance Strength Manipulative Environmental Cognitive Types of Problems or Mismatches From David Alexander, 1986
Clearance Reach Equipment Size Personal Protective Equipment (PPE) Physical Size
Environmental • Noise • Lighting • Thermal • Chemical
Cognitive • Machine Pacing • Shift Work • Morale • Psychosocial
Strength • Force Requirements • Male/Female • Manual Materials Handling
Benefits of Ergonomics • Decreased injury risk • Increased productivity • Decreased mistakes/rework • Increased efficiency • Decreased lost work days • Decreased turnover • Improved morale
Goals of Intervention • Tolerable • Acceptable • Optimal
Ergonomic Controls • Engineering • Administrative • Work Practices
Other Issues • Aging workforce • Universal design
Describe tools Awkward Postures During Sanitation Accessibility Maintainability What are some of the most difficult tasks Job Safety Analysis Sanitation Tools and Process Exercise