Procedure for Pretest & Posttest:

Procedure for Pretest & Posttest:

1.Subjects were tested individually at their computer workstations in their cubicles.

2.After subjects were fitted with the Gripmaster, subjects typed the assigned text.

3.While subjects were typing, wrist angle and posture were measured.

4.After typing the text, subjects were given a discomfort questionnaire.

5.During the posttest, subjects who used the PT system were given a questionnaire on their impressions of the PT system.

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