The step is a wide base around 40 cms. for one meter length, adjustable in height from the 10 to the 25 cms.

The lesson of step foresees a series of dynamic exercises of slope and descent from the base following a constant rhythm articulated by the music.

The activity performed on the step improves the efficiency of the cardio-vascular apparatus and at the same time he acts on the state tonic-trofico of the inferior limbs with a job of high-intensities, but to low impact.

Recent studies have shown that during the execution of the footsteps on the step, the stresses biomeccanicis practiced on the feet are similar to the practice of an activity of march behavior to around 5 Kms / h of speed; While the benefits gotten by the aerobic training are proportional to the activity of run performed to around 11 Kms / h. The practice of the step must follow some technical shrewdness so that not to put in tension and stress some articulations of our locomotor apparatus.

Here followings some among the most important:

- The height of the step must allow that the angle that he comes to form, in the support of the inferior limb, between thigh and leg, it must not be smaller of 90°.
This will allow that strive muscular during the phase of slope is not assembled on the articulation of the knee but is distributed on the whole limb.

- In the execution of the footsteps of support, to watch out that the whole plant of the foot is inclusive inside the base.

- The knee must have lined up with the ankle and slightly behind in comparison to the forefoot.

- When the first foot is on the step and the other foot it is still to the ground, the body must form a diagonal line from the head to the heel.

- The height of the base can be increased only when is reached a good degree of equilibrium, control of the body and mastery in the execution of the footsteps base of the step.