The circuit training is a program of physical training in evolution that has been developed by RE Morgan and G.T. Anderson in 1953 in the University of Leeds in England.

Early in the original format of Morgan and Anderson, the circuit is made up of nine to 12 stations. Nevertheless, nowadays, this number varies according to the design of the circuit. The program can be made with machines of exercise, hydraulic equipment, weights of hand, the mobile defense callisthenics, or any combination. The matic circuits are possible, for example, with boxing exercises (boxercise). 15-seconds of the station of Aerobic exercises of three minutes it is placed between each station, which allows east method to improve cardio-respiratory and the muscular resistance during the training.
One more a simpler form of the exercise consists of a group of runners with a gymnasium with a trainer calling, for example simply round, “ten flexions”, “ten squats” at intervals.
Studies in the University Baylor and the Institute Cooper show that the circuit training is the most efficient form the time to improve its cardiovascular condition and muscular resistance. The studies demonstrate that the training of circuit of aid to the women to reach their objectives and to maintain by more time than other forms of exercise or the diet.