Life Time, 300 Summit Blvd, Broomfield,720-531-8000, lifetime.life/life-time-locations/co-broomfield-flatirons.html

Instructor: Kelsey Ostenson has a degree in integrative physiology from the University of Colorado Boulder. She has taught yoga, CrossFit, barre and TRX. For the last four years she's been a personal trainer.

"I love being able to connect with so many people," says Ostenson. "We really focus on approaching a person as a whole."

What is the workout? The name says it all: Maxing out those glute muscles. They aren't kidding. This class is a full hour of making your butt and thighs work hard.

The Gluteus Maxout class at Life Time Athletic Flatirons in Broomfield.
The Gluteus Maxout class at Life Time Athletic Flatirons in Broomfield. (Cliff Grassmick / Staff Photographer)

"This class is supposed to be the ultimate leg day, but we do a very specific focus on glutes because your leg muscles will work on their own," said Ostenson. "But since we live such sedentary lifestyles and sit so much, our glutes get really lazy. The goal in class is to get the glutes fully activated and get them working, because it's going to give you a bigger calorie-burn and a larger hormonal metabolic response."

A series of circuit exercises targets the muscles all around the thighs and glutes. Most of the circuits consisted of two or three exercises repeated for three rounds before moving on to another set of exercises. Some of the circuits included a cardio component, or added extra weights for more strength-building. One circuit used a resistance band that turned a simple exercise into what felt like a form of torture.


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What's different? It's extremely targeted on a specific muscle group. But it's not like cardio or weightlifting, with an emphasis on glutes — rather, it's glutes that mixes in cardio and weights.

"Even though we're working core and legs quite a bit, this class is focused solely on the glutes," said Ostenson.

Another major difference is the lack of heavy weights, making it more approachable to beginners. There are dumbbells and some barbell moves, but they aren't heavy and the barbells aren't the kind you see in a CrossFit gym; they are smaller and less cumbersome.

The gym is massive. They have a full-service spa that offers haircuts, manicures and massages. A huge pool with a slide sits out back and tennis courts are on the roof. Multiple fitness studios offer an impressive number of group fitness classes throughout the day. I've never seen a gym that functions like a mini-city. All they are missing are sleep pods so you never have to leave.

Cost: $35 day classes with $150 five-class packages. Monthly membership is $119, with a joining fee of $119.

Level: Beginners can take this class without a problem. Students pick their own weights and difficulty level, so there's no pressure. It's a full class and it might be a little intimidating for someone who is brand new to any kind of weightlifting or fresh to the gym scene.

When: 8:15 a.m.-9 a.m. Mondays, 9:15 a.m.-10:15 a.m. Wednesdays and 5:45 p.m.-6:45 p.m. Thursdays.

What to prepare: Clothes to sweat in. Wear athletic shoes and bring water. Mats and equipment are provided.

Muscles worked: My hamstring and gluteus muscles were incredibly sore. I still felt this three days after taking the class. I avoided stairs and took the elevator at every opportunity.

What I loved: This class fully delivered on its promise. Not a single exercise veered from the posterior. If you're looking for buns of steel, this class doesn't disappoint.

What I didn't like: When I first walked into the gym I thought I'd walked into a hotel. They had a fancy concierge desk and a café. I didn't know where to go or what to look at. It was intimidating and a bit confusing at first.

How I felt after the class: My legs felt like the wacky wavy inflatable arm-flailing tube man you see in used car dealerships. I tried to run to my car and nearly fell over.

Know of any interesting workouts? Tell us about them so we can check them out: fantzc@dailycamera.com.