1. back injury can do the same. Because of the gentle force, yoga ball exercise is relatively safe, even the back has been injured, people who need rehabilitation can practice, to avoid excessive impact on the joints, it will be easier to do a lot. 2. Training human balance. Yoga ball is an "unstable" exercise equipment, when you get out of the ground with yoga balls, we must strive to maintain balance, not to allow the ball to roll, nor fall from the ball, which requires the legs, waist, abdomen Comprehensive power control, which can well maintain the body's coordination and muscle strength.

3 massage effect. Yoga ball action will try to make full contact with the body and the ball, and yoga ball is made of soft PVC material, when the body with the contact, the yoga ball will be evenly and gently massage the body, which is conducive to promoting blood circulation.

4. correct posture. As you sit on a yoga ball, parts of your body constantly make subtle adjustments to keep the body steady. These little tricks can promote blood circulation, strengthen the back and abdomen, let you involuntarily sit up, open your shoulders and correct your long-standing wrong posture.