Sitting on a fitness ball to work sounds fresh and interesting, and it is also good for your health. Sitting on a fitness ball is very different from sitting in a chair. To sit firmly on the fitness ball, you have to keep your body balanced and your upper body upright. This can strengthen the muscle exercise at the core of your waist and abdomen, which can not only avoid bad sitting posture, but also keep your breathing smooth. Because keeping the balance between the left and right limbs while sitting requires brain regulation, which is also a good exercise for the brain.

You should also pay attention to sitting on the fitness ball, and the placement of your legs is very important. The knee joint should be as high as the hip bone and perpendicular to the heel, which not only protects the knee, but also improves the blood circulation of the calf. The distance between the legs should be as wide as the hip joint. Under the posture of keeping the hip joint forward, twist the upper body to the left or right to the maximum extent, stretch the back muscles, activate the original stiff muscles, increase the strength of abdominal muscles, enhance the elasticity of the spine and prevent some spinal diseases. If you sit on the fitness ball and do some leg exercises, such as lifting your knees alternately from left to right, you can adjust the balance and contraction ability of quadriceps femoris and biceps femoris.