The recently published Revised Strain Index (RSI) replaces the Strain Index (1995) as a distal upper extremity ergonomics analysis tool. With the goal of reducing the occurrence of MSDs in the hands and wrists, the revised tool examines intensity of exertion, frequency of exertion, hand/wrist posture, duration of task per day, and duration per exertion. The RSI uses continuous multipliers (rather than categorical multipliers) and replaces the original’s “duty cycle” multiplier with the new “duration per exertion” multiplier. Like its predecessor, the RSI is an essential inclusion in an ergonomics professional’s tool box. You’ll learn about the inputs and outputs of this analysis tool, featuring numerous case studies.