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Ergonomics People Task
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Learning Objectives At the conclusion of this training you will be able to: Explain ergonomic principles Identify risks involved with working Additionally you will : Understand how the use of good ergonomic principles keep you safe
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Applications of Ergonomics
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Why is Ergonomics Challenging?
People are different
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Anatomy
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Anatomy Tendons
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Muscles and Joints Need rest to recover Need good circulation
Maintain strength
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Neutral Position
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Risk Factors Repetitive Motions Forceful Exertions Awkward Posture
Contact Stress Vibration
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Repetitive Motions No Rest for muscles and joints
Inflammation of tendons, nerves & joints Loss of strength (Muscle fatigue) Decreased circulation Body position
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Forceful Exertions Inflammation of tendons, nerves & joints
Poor grip (gloves, handles) Loss of circulation Loss of strength (Muscle fatigue)
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Awkward Posture Poor circulation Arms above heart Extended reach
Holding a fix position (static) Twisting or bending
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Contact Stress Loss of circulation
Inflammation to tendons, nerves & joints
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Vibration Poor circulation Inflammation of tendons, nerves & joints
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Manufacturing Ergonomics
Risks: Twisting or extending reach Overhead Work (Circulation) Repetition without rest Standing Static (Circulation) “Burping cases” (Palm as Hammer) Resting on sharp edges (Circulation) Number of task movements
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Manufacturing Ergonomics
Injury Prevention: Warm up muscles, joints Neutral Position Rotate muscle groups Do not rest on sharp edges Good grip Switch feet positions Take micro breaks
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Office Ergonomics Poor posture (tilted head, hunched) Poor lighting
Risks: Poor posture (tilted head, hunched) Poor lighting Long reach Poor chair position Poor monitor position Resting on sharp edges
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Office Ergonomics Neutral Position Arms close to body
Injury Prevention: Neutral Position Arms close to body Knees bent at 90o, feet flat while sitting Monitor at correct height Rest wrists while typing Take breaks and stretch
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Ergonomics Team Evaluate each task Reduce the number of movements
Provide Feedback Provide Ideas Feasibility
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If Signs of Injury Exist
Inform Supervisor immediately Complete an injury report Rest specific body part Ice Early intervention is the key
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