According to a study by the American Journal of Sports Medicine, back pain is the most common overuse injury among cyclist, with 58 percent of cyclists polled experiencing such symptoms in the previous year and 41 percent seeking medical attention for it. Indeed, cycling is one of the best low-impact cardiovascular workouts you can get, but after a few hours riding, even the most experienced athletes can feel discomfort in their upper or lower back. But according to Alyssa Dinowitz,…