In its 2012 Policy Statement on Baseball and Softball8, the AAP acknowledges the recent studies challenging the theory that the curveball and slider are stressful to the young
elbow, but, on the basis of other studies showing increased
injury among those who throw curve balls and sliders at
early ages, continues to recommend that introduction of the curve ball be delayed until after age 14, or when pubertal development has advanced to the stage when the athlete has started to shave, and that sliders not be thrown until age 16.
In addition, many athletes wear supports, such as knee, ankle, or
elbow supports, to offer additional support and protection to joints which may have been weakened by an
earlier injury.