The Wilmer Stretching Orthosis, abbreviated WSO, is a lightweight arm orthosis (also called brace or splint) from the Wilmer line, developed at Delft University of Technology. The orthosis helps to stretch the arm through an adjustable spring mechanism.
A Wilmer Stretching Orthosis, for whom?
The WSO is designed for people having trouble to stretch their elbow. Being unable to stretch the arm leads to loss of function of the arm, pain and discomfort. If the arm is not stretched for a long time, shortening of the muscles can occur, making stretching even more difficult. This is called a contracture.