Strengthening device for leg muscles

A training method which provides for the following steps:

• prearranging a device having:
• a substantially flat support surface and an external work surface directly engageable by the foot of a user or by a plate of a drum pedal, said support and work surfaces being articulated with each other at a respective articulation end, so that they can be mutually and angularly moved between at least one compression position and at least one release position, and
• a front, a back and two flanks,
• the cross section of said device decreasing in the front-to-back direction,
• said articulation end being arranged at the back,
• said strengthening device comprising at least one relief portion at said articulation end thereby resulting proximal to said back and distal from said front,
• said at least one relief portion extending towards the exterior of said device from at least one between said support surface and said work surface, and being made integrally with the respective support surface or work surface, and being made of resiliently deformable material;
• prearranging a pedal structure having a ground support footboard,
• an abutment plate pivoted on the rear of the footboard,
• a rod which at its head bears a hammer or percussion element, and
• means for operatively connecting said abutment plate to said rod,
• said device being housed in the reception zone delimited on one side by the lower surface, lower in use, use of the footboard and on the other side by the upper surface, upper in use, of the abutment plate;
• placing said device in the reception zone delimited on one side by the upper surface, upper in use, of said footboard and on the other side by the lower face, lower in use, of said abutment plate;
• resting the foot on top of the abutment plate, so as to move said at least one relief portion between said extended rest position and said compressed position close to a respective support surface or work surface in which it induces reaction forces that are opposed to the slipping of said device;
• and
• sequentially pressing said abutment plate, such that said support surface and said work surface are angularly moved with respect to each other between said at least one compression position and said at least one release position, while said at least one relief portion remains permanently in said compressed position.