Playing badminton back pain may be caused by muscle strain, lumbar dorsal myofasciitis attack and other factors. 1. muscle strain: due to incorrect posture in the process of playing badminton, or improper force, it is easy to appear lumbar muscle strain, thus appearing back pain. 2. lumbar back musculoskeletal inflammation: chronic muscle strain, cold, humidity and other factors cause acute and chronic pain in the lumbar back muscles, due to play badminton activities are too strenuous caused by lumbar back musculoskeletal inflammation, thus appearing lumbar pain. Usually can be appropriate to strengthen the functional exercise of the low back muscles, to avoid strenuous exercise, before exercise to carry out the appropriate amount of warm-up. If the pain is severe, you should seek medical attention.