According to my personal experience, if ordinary amateurs are not professional athletes and train less than 10 hour a week, it is difficult for them to build a more fit figure by Sanda boxing.
Take me personally for example. Before contact with the equipment of the system for fitness, there are only three kinds of strength training: unarmed and strength, except that the chest and thighs are stronger than the average person, and there is not much difference in body shape. However, after touching the equipment of the system for exercise, the figure line has changed greatly in a relatively short period of time.
Therefore, only relying on boxing Sanda to change one's body shape may not have a very satisfactory effect.