BOARDMAN, Ohio - "American Ninja Warrior" is in its 10th season on NBC, creating fans and an entire industry along the way. 

Ninja Warrior-style gyms began popping up all over the country, but at one in Boardman, the athletes on the course are younger than you might expect.

Inside Boardman's Warrior Warehouse is a massive obstacle course much like the ones you see on "American Ninja Warrior."

"It's fun. It's like a big playground," said Wade Campbell, who owns Warrior Warehouse.

That was the idea when Wade Campbell first opened the place almost two years ago. He has traditional equipment too, but this course provides something else.

"That's one of the problems with fitness, people get bored. They don't have anything else to do or whatever. This gives them an opportunity to cross over from that end over to this end," said Campbell.

What he didn't realize when he first started this was how popular it would be with the younger generation.

"We started getting calls and messages through social media, 'Do you have any kids programs, kids classes, or anything like that?' I said well, we need to try and get something going on with that," said Campbell.

Campbell says the eye-opener for him was the watch party when Pat Lavanty, who uses this course a couple times a week, made it onto the show. Around 50 kids were on the course that night and the kid's ninja program really took off from there.

"You talk to some of these little kids, they can recite everything; what stage, what obstacles at this point and that point, know all the athletes. It's crazy," said Campbell.

"They're suited for it. They don't weigh a whole lot, so it's a lot easier for them to accomplish the obstacles than an adult can actually do it," said Patrick Lavanty, who competed on "American Ninja Warrior" during last year's season nine.

"I get to exercise and it gives me a lot of energy away from sitting on the couch and watching YouTube," said eight-year-old Alyssa Puhalla.

Just to stand back and watch these kids fly through the course, it's impressive.

When asked about his favorite obstacle, 10-year old Andrew Puhalla said, "Probably the quintuple steps because they're so easy I can do it without my hands and it's a five-foot gap, I think."

They dream about being on the show one day themselves, but in the meantime they're just having fun, climbing and flying through the air, learning what it takes to be a Ninja Warrior.

"It really teaches a lot of confidence building. I've witnessed some kids go from just afraid to even look at the course to just flying through it. It's really amazing what these kids can do. And they're all an average of eight, nine, 10-years-old," said Campbell.

Pint-sized competitors and perhaps the next generation of "American Ninja Warriors."

Warrior Warehouse has a variety of programs including the kid's ninja training. You can find more information on the Warrior Warehouse website.