Saskia Baltrusch

73 Chapter 3 TASK 4: One-handed bank position Equipment: - Stopwatch - Paper sheet (see below) - Circular paper pieces (20 pieces of each color) Outcome measures: - Performance time (s) - Perceived task difficulty (VAS scale) - Discomfort (VAS scale) - Local Discomfort (VAS Scale) Protocol: The subject assumes the position. The paper sheet should be between his/her hands. There should be 3 hands distance from the anterior aspect of the thigh and the posterior part of the palm of the supporting hand, which should not be moved during the test. Subject is free to choose the posture, but not allowed to change it during the task. The manual task of the subject is to sort one color of the paper pieces into rows of 10. The subject works with one hand, but is allowed to switch hands. Instruction to subject: This is a postural tolerance task. You have to sort the colored pieces into rows of 10 while holding this position (demonstrate). Place your hand here (allot the appropriate distance). You are not allowed to change your posture during the task. You may change the supporting hand, but at no time you should support yourself with both hands You can use both hands in this task. The maximum time of this task is 5 minutes. If the local discomfort in your back gets too high you can stop this task earlier at any time. 3