With the development of aerobics, there are many hand shapes in aerobics, which are absorbed from ballet, modern dance, disco and martial arts. Hand shape is the extension and expression of arm movements. If used well, it will make aerobics movements more colorful, lively and infectious.

(1) convergence type: the five fingers are straight and close. The thumb is slightly bent and the knuckles are attached to the index finger.

(2) Separate type: the five fingers are forcibly straightened and fully opened.

(3) Ballet hand type: the five fingers are slightly flexed, the last three fingers are close together, slightly adducted, and the thumb is buckled.

(4) Boxing style: clench fist, thumb outward, knuckles bent, forefinger and middle finger close.

(5) Upright palm type: the five fingers are straight and the palms are forced upward.

(6) Spanish dancer's hand type: five fingers exert force, the little finger, ring finger and middle finger bend from the metacarpophalangeal joint in turn, and the thumb is slightly buckled.