Pressure Air Biofeedback or “PAB” is a program from TOGU® that uses air to measure muscle strength. It has been proven to be a great rehabilitation tool right after knee surgery or after a stroke. The PAB Basic is connected by a hose to a suitable TOGU® product and transfers measured data through a USB connection to the computer. Every motion is displayed as a Strength-Chart on the computer screen as the PAB device measures the strength of the acted muscle groups. Results that were achieved in previous exercises can be saved and compared, allowing the user to improve their therapy. With the PAB Basic, only one TOGU® item can be measured at a time. Included with the PAB Basic is a Bodyroll Senso, Throwing ring, Dynair Ballkissen XL Senso, Senso Ball 23cm, and the Seonso Balance KissenXL.