Compare and contrast the lifting analysis tools (NIOSH, ACGIH Lifting TLV, Liberty Mutual MMH tables) to the upper extremity analysis tools (RULA, HAL TLV, Strain Index). How are they similar? How are they different? Do you have more confidence in one set of tools (lifting or upper extremity) and why?

Compare and contrast the lifting analysis tools (NIOSH, ACGIH Lifting TLV, Liberty Mutual MMH tables) to the upper extremity analysis tools (RULA, HAL TLV, Strain Index). How are they similar? How are they different? Do you have more confidence in one set of tools (lifting or upper extremity) and why?