Lifestand LSC User Manual page 19

LSC User's Manual.
1.5 Checking the adjustments
Once the chair has been adjusted, the user should move to the standing position with the knees
fully extended (refer to § Preparation for moving into the standing position).
The chair is properly adjusted if the line from the hips to ankles, passing through the knees, is
perfectly straight. If it is not, the person should be seated once more and the adjustment fine-
tuned by retracting first the seat/back assembly and then the tibia supports.
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