These types of strains affect the adductor muscles which are located on the inner thigh. They are responsible for bringing the legs together and stabilizing the hips. There are actually 6 different muscles that make up the adductor muscle group. These muscles act in a fan like fashion to fully stabilize the hip and allow the leg to have a full circular range of motion.
People who experience this type of injury may find that the pain is immediate after a specific movement or that there is chronic discomfort that results in immediate pain with just the slightest wrong move.
A hip groin running strain is often graded by the physician who evaluates the athlete. These evaluations are beneficial when the tear is grade 2 or greater and you feel you may need physical therapy for rehabilitation. Evaluation and rehabilitation with a physical therapist can improve your chances of a successful healing and return to athletic activity.