Sports training apparatus with a servo system to its geometry

The sports training device and / or gestures to free weight comprises a structure (A) capable of carrying a user in motion and comprising a resistive device (8) of adjustable load to be driven in displacement by the via a transmission device (9,10,11,13) of the movement of the user. This device further comprises a mechanical control system (11,12,16,17,18,19,20) of the geometry of the movement transmission device according to the movements of the user.