1, knee ball push-ups: exercise parts: arms, lower abdomen: upper body 45 degrees and yoga ball, with hands supported on the yoga ball, feet apart, upward when inhaling, and arms repeatedly bent when exhaling 15 times.

2. Bend the elbow and stick the ball in a straight line to support the legs: exercise parts: abdomen and legs: the body is like a flat plate. Above the yoga ball, support your arms vertically on the ball and put your hands together. After inhaling, your left and right feet bend forward alternately, and your breath is restored. Cross repeat 20 times. Sports parts: lower abdomen and thighs: the calves are all above the yoga ball, and the arms support the floor. Inhale, put your feet back into the yoga ball, exhale and restore, and repeat 15 times.

3. Turn your knees to your hips: Exercise area: Waists on both sides: Put your knees on the yoga ball, keep your hands perpendicular to the ground, keep your back flat and turn left and right. Exhale with your feet together, turn to your sides, straighten your arms and exhale again. Repeat 15 times. Exercise site: abdomen and arms: put your feet together on the yoga ball, support the floor with your arms, exhale and bend your arms downward, and inhale to keep upright. Repeat 15 times.

4. Bend your knees and push-ups: Exercise parts: lower abdomen and legs: The body is at a 45-degree angle to keep the muscles tight, make yoga balls with your hands upright, bend your exhaling arms, and erect your inhaling arms. Repeat 15 times.

Yoga ball is one of the traditional health care instruments in China. There are stone, steel, copper, jade and cloisonne fitness balls. Mainly produced in Baoding area, also known as Wang blacksmith iron ball. The reason why fitness ball is beneficial to physical fitness lies in the moderate movement of fingers and palms when playing, which regulates the meridians of the body.