The workouts aren't for everyone.
"There are some days that just aren't fun at all," says 54 year old Tim King.
But something keeps King coming back to Crossfit Wichita's intense workout.
"My father was 54, he was such an old man. I just didn't want to be like that. I'm blessed to be able to do it," says King.
Crossfit Wichita is just one gym and one example of extreme fitness options for Wichitans and its popularity is growing.
"It does seem more and more people are interested in these things," says Via Christi Sports Medicine Specialist Dr. Andrew Porter.
"Lots of injuries…definitely keeps me busy," says Porter.
But Porter says the benefits still outweigh the risks.
"I think it's a great thing and a lot of us have this deep down inside of us to push our bodies to the limit."
He says before you take on an extreme fitness routine, ask yourself some questions.
"Are they safe to start doing these things? If they are, are they going into it the right way? Are they easing into it?"
Crossfit Wichita owner Belan Puga says there's a good way to prevent injury.
"Leave your ego outside."
So is Crossfit too extreme?
"A lot of people think it's too extreme or dangerous. That's a huge misconception," says 26 year old Haylie Deitchler who wants to be a fire fighter.
She talks about how accepting extreme workout communities are to newcomers.
"You really are a family when you come here."
And doctors say as long as it's something you want to do and you take it slowly…go right ahead and give it a try.