A pedal assisted bicycle a first and a second wheel； a pedaling assembly mechanically decoupled from the first and second wheels by which an user can supply a pedaling power； an electric motor mechanically coupled to at least one of the wheels capable of taking a motor power； a generator device adapted to generate a generator device electric power from the pedaling power, arranged in an energy exchange relationship with the pedaling assembly and the electric motor； an energy storage device arranged in an energy exchange relationship with the electric motor and with the generator device； a control system including a module for controlling the power required to the generator device to be supplied to the electric motor and/or to the storage device； a heartbeat sensor adapted to generate a signal representing heartbeat.
