Revised Strain Index

Estimate distal upper extremity strain for a single hand-intensive task.

Assessment details

Title / task name

Task variables

Intensity of exertion (% max strength)

Efforts per minute

Duration per exertion

Hand / wrist posture

Duration of task per day

Final Score

4.49

Safe

Task is unlikely to cause distal upper extremity disorders.

Intensity multiplier3.22

Efforts/min multiplier1.35

Duration multiplier1.38

Hand posture multiplier1

Daily duration multiplier0.75

Duty cycle25%

RSI score4.49

Safe