C.J.'s parents, Adrienne and Carlos Senter, say they have not pushed their son into being super fit. If anything, the little fitness guru said he has been pushing them to shape up, encouraging them to exercise outside.
"The only thing I push C.J. into doing is going to school, making great grades and respecting others and treating them the way that he'd want to be treated," Carlos Senter said.
"It wasn't anything he set out to do on purpose," Adrienne Senter said. "Just with exercising and really just normal play for a child, he developed a physique."
His parents insist C.J. developed his body the old-fashioned way with calisthenics -- not weight lifting -- and they discourage other kids from pumping iron since it is widely believed to be hazardous to young bodies, but Gotlin disagreed.
"It's a fallacy and a myth that young children cannot lift weights. They can," Gotlin said. "Kids as young as 7 or 8 years old can lift weights very well. But the key is with supervision. They have to have an adult who's not just there in the room, but who's watching the child or coaching the child to make sure they don't get hurt."
The Senter family said they have sold or donated between 3,500 and 4,500 of C.J.'s workout DVDs, but said they aren't in it for the money.
"I coach football and I see a lot of kids coming back each year more and more out of shape," Carlos Senter said. "I figured that the best way to do anything with kids is with a kid, and he had the idea and we just moved forward with it."
C.J. said he dreams of one day playing in the NFL, but if that doesn't work out for him, he already has built an impressive body of work.