What is the fitness function of China traditional Wushu?

Stretching ligaments by exercise can improve endurance, coordination, explosiveness and strength. The effect of fitness is more obvious. Don't think that going to the gym is called fitness. Traditional martial arts, developed in all aspects, will not deform your muscles. Persistence in practice can not only prolong life, but also achieve good results in actual combat. Cheng practiced Tai Chi for decades, once ran away with eight spies, and so on.