One of the secrets to Muay Thai is their excellent defensive skills and their superb conditioning. They skip, they work the pads, they jump on the spot using tires and many other unique skills to get in outstanding physical condition for fighting so that they can go all out for the 3 minute rounds. They realize that the amount of conditioning must be much greater than a boxer as the amount of energy and effort it takes to do kicking techniques as well as hands is much greater. Muay Thai is sometimes called the 8 arm boxing by the chinese because it involves both fists, both elbows both knees and both feet. 54 min.