Practicing gesture dance is mainly to improve the flexibility and coordination of fingers, not to change the thickness of fingers. Finger thickness mainly depends on heredity and bone structure, not movement. In the process of practicing gesture dance, strength training or other exercises at the same time may lead to the thickening of finger muscles.
The flexibility of fingers and the execution effect of dance movements are related to the joints and muscles of fingers. For example, in dancing, the flexibility of fingers and whether they can make correct movements can reflect a person's dancing skills.