He does martial arts three times a week, baseball twice a week - I've just stopped swimming lessons as quite frankly he just cannot do it after 9yrs of swimming lessons and I can't watch him anymore. He used to run 4.2km on a Sunday morning but baseball got in the way over summer. He's really not a coordinated kid bless him but he loves sport but begged not to have to swim any more. He has a six pack which he is highly proud of but if you touch him you feel like you're going to break him. I do agree that it probably won't work putting weight on him, never worked with me, but you know when you just feel like you have to try something.