This dataset provides synchronized recordings of electroencephalography (EEG) and accelerometer (ACC) signals collected during controlled passive lower limb movements. The data were acquired to facilitate analysis of corticokinematic coherence (CKC), aiming to quantify cortical responses associated with proprioceptive input. EEG signals were recorded from healthy participants using a standardized electrode layout according to the international 10-20 system, while tri-axial accelerometers captured precise limb movement kinematics.