I hope that helps.
Dr. John C. Lemke
Short story: I had a 12-year-old baseball player patient when I was a student doctor at my university's out patient clinic. He struck out more than he hit. Wasn't too good at fielding either. After he was under my care for 2-3 weeks, his game got better and better to the point that he was hitting a home run in just about every game. His mother said that he didn't want to play unless he got his chiropractic adjustment first.