Why do the sensors work the other way around (from bending on the screen when the child is extending)?
This is due to improper calibration. In the case of a flexion extension: Before pressing the "extension/ flexion" button, the member to be mobilized must be in the "low" position. After pressing the "extension/ flexion" button, you must first move your limb to the "high" position until you reach the desired amplitude up, then return to the "low" position.
Repeat the same movement 4 times so that the application records this movement for the games.
In the case of a deviation: Before pressing the "deviation" button, the member to be mobilized must be in the "left" position. After pressing the "deviation" button, you must first move your limb to the "right" position until you reach the range of motion desired to the right, then return to the "left" position. Repeat the same movement 4 times so that the application records this movement for the games.