Chapter 10: Ergonomics

Question 1

What are the 3 key risk factors of ergonomics

Answer 1

• Repetition/Duration
• —-> less than 30 s/cycle
• —-> more than 1000 parts/shift
• Joint Deviation (or awkward posture)
• —-> raised elbows and arms
• —-> bent wrists or hands
• Force
• —-> high amount of hand force > 7lbs
• —-> hand grasping, pinch gripping
• —-> mechanical stress, arm resting on table edge

2 other risk factors include cold and vibration.

Question 2

What are some non-occupational risk factors of ergonomics?

Answer 2

Rheumatoid arthritis
endocrinological disorders
acute trauma
obesity
pregnancy
recreational activities