A major difference compared to conventional exercises (weight machines, barbells or dumbbells) is that while weight training resistance is constant and equal to the set load (isotonic exercise), with FLYCONPOWER® the resistance is adjusted at any time and proportional to the force developed. In fact, the greater the force applied, the greater will be the acceleration with which the flywheel reacts (isoinertial exercise). This working method reproduces exactly the situation in which the muscle works during exercise: a strength and variable speed, and accelerating and decelerating an inertial load. Moreover, since the resistance is proportional to the effort developed, each repetition may be carried out at the maximum possible force and, contrary to traditional weights, it is for maximum definition (although decreasing in strength due to fatigue). It follows a higher training load to equal the number of repetitions – and thus a higher yield. The main advantage is the possibility of developing a so-called “eccentric overload”, a strength and power of greater peak in the eccentric phase (in fact, the most at risk of injury) than the concentric. In practice, during the concentric phase, this charges the flywheel with kinetic energy, and this energy is then returned in full at the next eccentric phase. If at this stage there is delayed braking, the resistance will be reduced accordingly to the eccentric phase of the active duration. As a result, the power developed (that the ratio between the energy and the time in which it is developed or absorbed) will be greater. By controlling the duration and the intensity of the braking phase, it is therefore possible to reproduce an eccentric overload similar to that in which the muscle in real conditions (sporting conditions) is exposed.