Not sure what to do........

casi_ann

Ask his pediatrician and if it is all right with him/her I'd let him do it. There are a lot worse things a young one can get involved in. Plus, what a great way to bond.

Marigenous

I remember doing body weight resistance training as part of phys. ed. when I was that age (I remember clearly since I was the chubby, asthmatic kid who could hardly do a pushup...). I don't see how that kind of simple stuff would be a problem.
Also, doing simple exercise is "natural". I think it's common for boys that age to want to get stronger, and I'd encourage that enthusiasm. I only wish I'd had an interest in exercise when I was younger, instead of trying to develop healthy routines as an adult.
Maybe you could do more kid-friendly exercises with him like playing with a medicine ball or skipping rope. You could also do something like a rock climbing class together.


http://www.livestrong.com/article/100903-list-strength-exercises-kids/
http://www.coaching-kids-sports.com/strengthtrainingexercisesforkids.html
http://www.grandparents.com/gp/content/activitiesandevents/everyday-activities/article/7-kids-exercise-games.html

ChcolateLady11

Thanks for the feed back. I will be asking his doctor what she thinks :-)