The I.M.A (Interval Mixed Art) Fitness Training System is a new form of interval training with a 50' duration, with which we can achieve increased metabolic rate, improved muscle tone and overall fitness. It combines aerobic exercise with alternating intensity (high - low), muscle strength (props, bars, bands, the body weight itself) and stretching, delivering maximum results in a short period of time. It aims at all ages as it adapts to the capabilities of all practitioners.