A training aid stimulator for providing fast perceptive feedback, the training aid stimulator comprisinga first skin electrode for making electrical contact to the body of a user, anda second skin electrode for making electrical contact to the body of a user,a body capacitance charging module connected to the first skin electrode,a discharge module connected to the second skin electrode for a feedback discharging of a body capacitance, anda processor connected to the body capacitance charging module for controlling the charging of a body capacitance, CBODY, to a predetermined first voltage level,wherein the processor further being connected to the discharge module for controlling a feedback discharge of said body capacitance, CBODY, andwherein the stimulator further comprises a measurement module for measuring the level of charge of said body capacitance, CBODY.
