[Graphic demonstration of finger mobility in the grasping region]

To test the functional capacity of a finger, the documentation of its range of motion is of great importance. The capacity to grasp is determined by the flexion and extension ability of the finger joints. Dexterity is based on the mobility field of the finger end, within the grasping area. Both can be shown graphically. A table is described with which the mobility within the grasping area of each finger can be tested and documented without joint measuring. The advantage of this method is the easy handling and the graphic demonstration, allowing a very precise judgment of the functional capacity of a finger. The graphic demonstration is especially qualified for testing disabled fingers as well as showing progress during physiotherapy.