Ergo Flashcards
Ergonomics
Branch of science that aims to learn about human abilities and limitations, then apply to improve people’s interaction w/ products, systems, environments
Most common work related disability
LBP
Highest risk category: agriculture
Anthropometry
Body size, shapes, populations, variations
Diaries physical measures of a persons size, form, functional capacities
Existing data based on 1950-2970s military personnel
Biomechanics
Muscles, levers, forces, strength
Enviro physics
Noise, light, head, cold, radiation, vibration body systems.
Analyzing interactions in which enviro modifies organism’s repsonse
Applied physchology
Skills, learning, errors, differences
Social psychology
Group, communication, learning, behaviors
Ergo - risk factors
Repetitive activity Holding a position w/ out movement Use of force or strength Localized posture Awkward position Low temp Vibration
Holding position w/ out movement
Reduces blood flow
Fatigue
Awkward positions
Press on nerves, stretch tendons
Bending up, down, side to side
Neutral body posture
Straight back 90 hip bend 90 knee bend Straight head/neck Relaxed shoulders 90 elbow bend Straight wrist
Upright sitting posture
Torso and neck vertically in line
Thoughts are approximately horizontal
Lower legs vertical
Declined sitting posture
Thoughts included
Angle b?n thighs and torso is greater than 90
Torso is vertical or slightly reclined and legs are vertical
Standing posture
Legs torso neck and head approx inline and vertical
User may also elevate one foot on a rest
MusculoSkeletal Disorders
Carpal tunnel Guyons canal Epicondylitis TOS Muscle stains Ganglion cysts Tendinitis Tenosynovitis Dequervains Trigger finger Back pain
