Self-Managed Exercises, Fitness and Strength Training, and Multifidus Muscle Size in Elite Footballers.

Context:   Low back pain (LBP) and lower limb injuries are common among Australian Football League (AFL) players. Smaller size of 1 key trunk muscle, the lumbar multifidus (MF), has been associated with LBP and injuries in footballers. The size of the MF muscle has been shown to be modifiable with supervised motor-control training programs.