Judge. Sanda takes knocking down opponents as its ultimate goal.

Fitness can directly stimulate local muscles by using equipment, and its practice mode is to pursue a high degree of coordination between muscles, so some muscles should not be too large. The timing and distance in fighting practice only make the local muscles thicken, and the muscle groups cooperate with each other to achieve the best hitting strength, while in the later stage of Sanda, two people mainly hit each other.