Exploratory Study on Predicting CIDP Patients' Decline During IV Immunoglobulin Treatment Adaptation Feasibility.

Participants will wear 2 Actimyos in everyday life. Actimyo is an innovative device intended to be used in a home-based environment. It is composed of two watch-like sensors, each containing a magneto-inertial sensors that record the linear acceleration, the angular velocity, the magnetic field of the movement in all directions.The two watches can be worn as wristwatch or placed near the ankle.