Figure 2

Kinematic signals from the optoelectronic system and the inertial sensor. Example of kinematic signals recorded from a healthy subject executing item 13 of ARAT. (a) Velocity profiles of markers positioned on the wrist and on the object. Data were extracted from the optoelectronic system. (b) Time courses of angular velocity and vertical linear acceleration extracted from the inertial sensor. Task sub-phases (reaching, transport and release) computed from the two systems are shown.