Class 1_Intro to Ergonomics

Class 1_Intro to Ergonomics - OregonStateUniversity Intro...

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Oregon State University 10/03/10 1 Intro to Ergonomics H 494/594   Applied Ergonomics Tony Brace, MS, CPE  Winter 2010
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Objectives What is Ergonomics?- a brief primer What it is Design goals Injuries and risk factors Neutral postures and Cranes History of Ergo Costs and Benefits 10/03/10 2
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10/03/10 3 What is Ergonomics? Ergo= Work      Nomos= Laws  “The Laws of Work” Ergonomics - the study of work and how it affects people  The study of the relationship between an people and their working  environment to increase safety, comfort, productivity, quality and  efficiency
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10/03/10 4 What’s in name? Ergonomic related problems are known by many names MSD- Musculoskeletal disorder CTD- Cumulative trauma disorder RSI- Repetitive strain injury WRMSD- Work Related MSD Examples of Ergo related problems Carpal tunnel Lateral or medial epicondylitus Thoracic outlet syndrome Bulging or herniated disc
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10/03/10 5 Ergonomics involvement Practitioners come from various felids EHS Occ/Pysical therapy IE IH Human Factors and Ergonomics The science crosses several disciplines Physiology Anatomy Psychology Biomechanics Engineering
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10/03/10 6 Why Ergonomics? People are different because Gender Body size and shape Nationality Physical conditioning Age Physical disability
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10/03/10 7 Thus the Ergo Goal is…    ….design to accommodate for all these differences! Design for human capabilities and differences 
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10/03/10 8 Design for Human Capabilities Physiological- “Heart Rate” Physical- “Muscles” Psychological- “Senses, job beliefs” Biomechanical- “Teeter-totter”
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Acute Injuries / CTD’s Acute injuries Happen immediately Very direct antecedent “I cut my knee with an exacto-knife “Anvil fell on my  toe” Sprain Strains When Muscles, tendons or ligaments are  overexerted Excessive force applied to joints Usually due to an instantaneous event  CTD - Cumulative Trauma Disorder Happens over time due to awkward and/or  sustained postures, excessive force,  repetition Usually result of exposure to risk factors Often no direct antecedent Symptoms may include Aching, fatigue,  sharp pains under loading (such as  griping/lifting), numbness, tingling,  stiffness
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10/03/10 10 Risk is increased by  time, intensity,   combining factors What are the risk factors? Excessive Force/Weight (Pulling, Lifting)
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This note was uploaded on 10/02/2010 for the course IE 592 taught by Professor Staff during the Winter '08 term at Oregon State.

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Class 1_Intro to Ergonomics - OregonStateUniversity Intro...

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