“…The PUFI has shown acceptable validity and promising reliability. 13,14 We evaluated the quality of arm movements with and/or without prosthesis, by observing the performance of 10 tasks representing general activities of daily living: Cutting a big and small circle, peeling and cutting a banana, pouring water into a cup, opening a jar, spreading peanut butter on a sandwich and cutting it into four pieces, zipping a jacket, buttoning and unbuttoning a shirt and opening a wrapped sweet. Subjects who wore a prosthesis were tested first with their prosthesis and then without.…”