Many friends consulted me yoga ball to do office chairs OK, to be honest I really have not used, but I studied the principle of the yoga ball, and consulted some of the experience of friends who have used the yoga ball, and finally can come to the conclusion that the yoga ball to do office chairs on the lumbar spine is not good. Let’s look at the principle of sitting on the yoga ball exercise lumbar spine, yoga ball is an “unstable” sports equipment, when you sit on the yoga ball to try to maintain balance, not to let the ball roll, and not to let themselves fall from the ball, the back, waist, abdomen and hip muscles need to constantly make adjustments to achieve body balance, so The exerciser will involuntarily straighten the waist and adjust the shoulders backwards, which is beneficial to the exercise of the muscles of the low back and the maintenance of the physiological anterior convexity of the lumbar spine. However, this should be limited to the exercise in the gym, a short period of energy to focus on the case of active exercise. If used as an office chair, sitting on it for a long time will bring a series of problems: first, sometimes the sitting posture of people when concentrating on learning and working is not correct, so in order to achieve balance on the yoga ball will bring the lateral bending of the trunk, making the lumbar vertebrae side of the force is increased, but the risk of disc protrusion, and also brings the risk of scoliosis; second, on the yoga ball When working, due to instability, there is the risk of cartwheels and falls; again, the yoga ball when the seat for lumbar exercise actually belongs to the multi-threaded management, but most people are not competent to do both work and exercise at the same time these two things, rather than exercise seriously when exercising, when working down to work. Finally, there are friends who complain that it is inconvenient to sit on the yoga ball to move the position, for fear of falling to get up, change the position and then sit down. The best sitting posture for the cervical and lumbar spine should be a pillow for the neck, a backrest, a support for the elbow and a cushion for the waist, maintaining the physiological curvature of the cervical and lumbar spine, and enough support to keep the muscles from overstressing and fatiguing, such a sitting posture cannot be accomplished by a yoga ball.