LOUISVILLE, Ky. (WDRB) -- The kickboxing circuit training gym, 9 Round, has opened a new location on Bardstown Road in the Highlands.

“There's always a trainer on the floor with you. There are no class times, which is the best part. So whenever you walk in the door, you get to jump in the next round whenever it's time,” 9 Round owner, DeDe Kelley said.

It’s a 30-minute workout.

“I got the feedback ‘you're killing me,’ which is always good,” Kelley said.  

“I'm dead. It’s the hardest work out I think I've ever had,” 9 Round member, Pamela Denny said.

According to fitness industry studies, 42 percent of all health club members are joining boutique-style gyms. That's double the number of members since 2014. Some even sign up for multiple gyms at one once.

“When you're working out, let's just say you do Yoga or Pilates, you're using that for stretch. You're going to come in here and you're going to get resistance training and cardio training. It is sort of shocking your body when you're working out,” Kelley said.

“I do like to run, but I feel like this gives me a better upper body work out and a better core work out than the running,” Denny said.

Whether it's the class camaraderie, the individual attention from a trainer, or the convenient class times, boutique fitness centers, like Orangetheory, have witnessed the growing trend.

“When we first opened, we didn't have as many members and now we are up in the seven or eight hundreds in our member size in just this studio alone,”Victoria Coleman, Orangetheory's manager.

Orangetheory is a 60-minute high intensity interval training course focusing on cardio, weights and rowing.

The Saint Matthews studio has been growing since it opened two years ago. Orangetheory is opening a new location in Louisville in the near future.

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