The present invention concerns a method of operation of a gymnastic
machine comprising a
system (2) for applying a force exerted by a user when performing a gymnastic exercise; a
brake system (3) to exert a
brake action in response to the force exerted by the user; a transmission group (4) of the force exerted by the user to the
brake system (3); at least one detection system (6) of the force exerted by a user when performing the gymnastic exercise; and at least one
logic control unit (U) connected to said brake system (3) and to said detection system (6); the method including the step of: selecting a
training program that comprises the passage from at least one first target (Target_1) to at least one second target (Target_2) or setting in the
machine at least one first target (Target_1) and at least one second target (Target_2), wherein the target is the value of a parameter associated with the gymnastic exercise; selecting or setting in the
machine a passage mode (MODE 0, MODE 1, MODE 2, MODE 3) from the first target (Target_1) to the second target (Target_2), wherein: in a first passage mode (MODE 0), the
logic control unit adjusts a brake parameter corresponding to the brake action exerted by the brake system (3) with a
feedback control as a function of at least one
signal from the detection system (6); in a second passage mode (MODE 1, MODE 2, MODE 3), the
control logic unit maintains the brake parameter at a constant value (P_const) for a predefined period of time (T) or until the second target (Target 2) is reached.