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Ergonomics - PowerPoint PPT Presentation

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Ergonomics. Mazie Fairchild 11-18-05. Ergonomics. What is it? Ergonomics contributes to the design of tasks, jobs, products and environments in order to make them compatible with the needs, abilities, and limitations of people. . Objective of Ergonomic Design.

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Mazie Fairchild


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  • What is it?

  • Ergonomics contributes to the design of tasks, jobs, products and environments in order to make them compatible with the needs, abilities, and limitations of people.

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Objective of Ergonomic Design

  • To ensure that humans and technology work in complete harmony, with the equipment and tasks aligned to human characteristics.

  • The job should “fit the person” in all respects without compromising human capabilities and limitations.

  • Improving efficiency, productivity, safety and health in the work setting.

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Components of Ergonomics

  • Anatomy: Improving tools and equipment to meet all of the various sizes and body types. Understanding the muscles, limbs and posture.

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Components of Ergonomic Design cont.

  • WorkPhysiology: Energy requirements of the body and standards for acceptable physical work rate, work load and for nutritional requirements.

  • Environmental Physiology:Analyzes the impact of physical working conditions such as thermal, noise, vibration and lighting.

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Components of Ergonomic Design cont.

  • Psychology: Human information processing and decision making capabilities including sensory processes, perception, long/short term memory and decision making.

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2 Types of Ergonomic Risks

  • Personal

  • Occupational

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Personal Risk Factors

  • Age

  • Stress

  • Level of Fitness

  • Medications

  • Gender

  • Alcohol, Tobacco & Caffeine Use

  • Nutrition

  • Hobbies

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Occupational Risk Factors

  • Repetition

  • Sustained Exertions

  • Force

  • Awkward Postures

  • Localized Mechanical Pressures

  • Vibration Exposures

  • Temperature Extremes

  • Glare/Lighting Issues

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Reducing the Risk of Injury

  • Educate employees about proper techniques when necessary

  • Use assisted devices or team lifting when necessary

  • Computer ergonomics: proper seating, distance from screen, position of head/neck, arms and legs

  • Reduce the risk factors if applicable

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More Ergonomic Principles

  • All work activities should permit the worker to adopt several different, but equally healthy and safe postures

  • Where muscle force has to be exerted it should be done by the largest appropriate muscle group available

  • Work activities should be performed with the joints at about mid-point of their range of movement, particularly the head, neck and trunk

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  • P: Promote blood Circulation

  • O: Organize your desk space

  • S: Sit in a slightly reclined position between 100-110 degrees

  • T: Typing technique must be correct

  • U: Understand your work pattern

  • R: Relax your arms, shoulders, neck, back

  • E: Ensure that your feel rest firmly upon the floor

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