"I started seeing a sharp increase in youth sports injuries, particularly baseball, beginning around 2000," Andrews told The Plain Dealer in a telephone interview. "I started tracking and researching, and what we've seen is a five- to sevenfold increase in injury rates in youth sports across the board. I'm trying to help these kids, given the epidemic of injuries that we're seeing. That's sort of my mission: to keep them on the playing field and out of the operating room.
"I hate to see the kids that we used to not see get hurt. ... Now they're coming in with adult, mature-type sports injuries. It's a real mess. Maybe this book will help make a dent."
The short version - kids need variation in the demands that are placed on their bodies. To help them express their full potential, make them athletes first, sports specialists later. They need strength and power, they need to sprint, jump and play. Throwing baseballs or footballs all day every day is not the path to a healthy future.