Swimming is still the most popular summer sports, especially many experts pointed out that swimming on the cervical and lumbar spine is very good, the public is more tend to be with, however, do you know? Swimming has different swimming posture, some posture can reduce the low back pain, some will aggravate the pain. There is a difference between exercise for rehabilitation and exercise for sports. Muscle and joint relaxation and targeted exercise for specific muscle groups are two of the main objectives of rehabilitation for low back pain and osteoarthritis, which can be carried out through swimming. However, too much pursuit of swimming posture as well as excessive exercise will, on the contrary, aggravate muscle and joint injuries. In fact, swimming is a lot of learning, do not think that any posture is suitable for you, and you also have to remember that back injury is the most common sports injury disease of swimming, you have to be careful to prevent. O-shaped legs are not suitable for breaststroke Lumbar and leg pain and cervical spondylosis patients are suitable for breaststroke posture. However, the leg action of breaststroke tends to aggravate the burden of knee ligaments and the friction of knee joints, and at the same time aggravates the deformity of O-shaped legs. Therefore, patients with osteoarthritis of the knee and O-shaped leg should avoid breaststroke. Butterfly swimming is not suitable for people with lumbar disc herniation. Butterfly swimming has a large amplitude of body movements, and it is easy to cause chronic inflammation of shoulder soft tissues due to overuse of the shoulder for a long time. In addition, the lumbar vertebrae are susceptible to compression fractures due to prolonged stress, so butterfly swimming is not recommended for those who suffer from lumbar pain or lumbar intervertebral disc herniation. Backstroke is suitable for cervical spondylosis Because the neck belongs to the backward posture during backstroke, the small joints of the cervical vertebrae are exercised, so cervical spondylosis patients are more suitable for backstroke. However, backstroke requires a high level of shoulder movements and leg movements, so backstroke may bring about sports injuries such as “swimmer’s shoulder” and “swimmer’s ankle”.