AEP Musculoskeletal Disorders and Prevention Flashcards
6 cards from real AEP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 AEP Musculoskeletal Disorders and Prevention flashcards as text
The Liberty Mutual Manual Material Handling (MMH) tables provide what type of information to ergonomists?
Answer: Percentage of industrial workers who can perform tasks safely at given load/frequency combinations
The Liberty Mutual MMH tables show the percentage of male and female workers capable of performing pushing, pulling, lifting, lowering, and carrying tasks without excessive risk.
Hand-arm vibration syndrome (HAVS) primarily affects which bodily systems?
Answer: Vascular, neurological, and musculoskeletal systems of the hand and arm
HAVS presents as vibration-induced white finger (vascular), peripheral neuropathy (neurological), and grip strength loss (musculoskeletal) in the hands and arms.
Which measure is used by OSHA to establish the action level for hand-arm vibration exposure in the US, consistent with ISO 5349-1?
Answer: 8-hour frequency-weighted acceleration (A(8))
ISO 5349-1 and OSHA guidance use the 8-hour frequency-weighted acceleration A(8) in m/s² to assess daily hand-arm vibration exposure against action and limit values.
A job rotation program is classified as which type of ergonomic intervention for MSD prevention?
Answer: Administrative control
Job rotation is an administrative control that reduces exposure time to a specific hazard by distributing the cumulative load across different muscle groups or workers.
Which body posture guideline is central to minimizing compressive forces on the lumbar spine during manual lifting?
Answer: Keep the load close to the body and maintain lumbar lordosis
Keeping the load close to the body reduces the moment arm and compressive forces at the lumbar discs, while maintaining lordosis supports proper spinal alignment.
Which early sign is MOST indicative of a developing upper extremity WMSD that an ergonomist should watch for during a worksite walk-through?
Answer: Workers shaking hands or rubbing wrists during or after tasks
Workers shaking or rubbing their hands and wrists during tasks often signals early symptoms of nerve compression or tendon irritation, a key early indicator of WMSD risk.