There's been a shift in the sports medicine world.
Doctors used to believe that weight training at a young age was not a good idea and could be dangerous to a child's growth.
Nine-year-old Taylor works out with her personal trainer, Kari Pagenhardt.
The goal is to get Taylor excited about exercise.
Pagenhardt works with Taylor on a variety of strength training exercises.
But, is this safe at such a young age?
"In general, if done right, if done well, it can help tremendously, and the converse is also true.
If done wrong, it can do irreversible damage," sports medicine physician Dr. Eric E. Coris said.
Coris said for safe strength training with kids, focus on proper form, light weights and higher repetitions.
With kids, bulking up is not the goal of weight training, so 12 to 20 repetitions with light weights is all they need.
As for a trainer, find one who's certified, makes it fun, and doesn't focus on weight loss.
"You want to avoid the boot camp mentality.
Really, what you want to do is in still in your children a lifelong appreciation for exercise," Coris said.
While Taylor is trained, her mom, Debra Fry, works out too.
She said Taylor doesn't like physical activities, which has led to weight gain.
"My bigger fear is that if she's 15, if I hadn't done anything to help her, that she'd look at me and say, 'Mommy why did you not do anything for me?'" Fry said.
Her weight is down, her confidence up, and balance and strength are improved.
"When she first started, she couldn't do a leg lift or one crunch, and now she can really do it," Pagenhardt said.