I've been thinking of starting to take my 11 yr old to the gym with me. No fanatical routines or "pushing", I just want him to learn/do basic strength exercises with the stress being more on form and muscle control as opposed to weight. He seems to have this problem with figuring out which muscles to use and how to use them when it comes to strength. For example, when he arm wrestles he seems to flex every muscle in his body except the ones that would push his hand down toward the table. I'm not making fun of him and I'm "disappointed" in him or anything, I'm just trying to figure out a way to help learn some better muscle control. He's been on swim teams (year round) for the last 3 years so I'm not worried about him "exercising". He's pretty good at it too because he's the type of person that not only listens to the instructions but actually applies them after he's been instructed. So I'm not too worried about him not doing the proper form but I just wondered if anyone knows of any legitimate medical concerns with lifting at a young age and how young is "too young" (generally speaking).