The walls at Lagroove wear a wiggly, psychedelic paint job straight out of a 70s fever dream, and before class even begins, the playlist is already bumpin'—part roller rink Saturday afternoon, part girls’ weekend dance party in someone’s living room. It’s the kind of place that makes you want to move before you’ve even put on your grippy socks (a handsome assortment is for sale at the front).
A rack near the entrance carries pieces from Lucky Eleven: vintage-washed denim and sweatshirts that await the bod you are about to sculpt in a no-holds-barred 50-minute workout. The whole 2,400-square-foot space is dotted with fun touches, including a mint green phone that the teenager in me can’t resist. Fourteen-foot ceilings and a generous skylight keep it airy and light, and mirrors line both the front and back walls so you can simultaneously appreciate your form and wonder why your legs are shaking. The answer, always, is the Megaformer.
Lagroove is built around the Lagree Method, a high-intensity, low-impact workout developed by fitness inventor Sebastien Lagree that is often confused with Pilates. The heart of the method is time under tension: slow, deeply controlled movements performed on the Megaformer, a spring-based resistance machine that keeps muscles engaged continuously throughout each exercise. There’s no coasting between reps, no idle moments between sets. The resistance is adjustable, the exercises are scalable, and whether you’re a seasoned athlete or a first-timer, the machine will find your edge and politely refuse to let you off the hook.
The method targets multiple muscle groups simultaneously, working your core, legs, arms, and back in a single session. Because it’s spring-based rather than weight-based, the resistance stays consistent throughout every movement, creating a smoother, safer workout while still delivering serious intensity. The result is a 50-minute class that builds strength, improves cardiovascular endurance, and leaves you with that particular kind of satisfying soreness that means something actually happened.
Amanda Negri, the owner of Lagroove, came to fitness entrepreneurship the way the best things tend to happen: sideways, and with good timing. Her background is in marketing, but after her son was born, she was ready for something that aligned more fully with her spirit. She’d already fallen hard for the Lagree method while rehabbing from hip surgery, and when the studio became available, it felt like kismet. Now she’s building something that extends well beyond the 50-minute class—community gatherings, business meetups, and the kind of easy social hangs that make a fitness studio feel less like a transaction and more like a neighborhood.
At Lagroove, all instructors are Level 2 Lagree Certified, which means the cueing is precise, the form corrections are genuinely helpful, and no one is left confused on a machine that has more attachments than a Swiss Army knife. Classes are intentionally kept small so instructors can give each client real attention.
Lagroove is located at 1657 28th Street in Boulder, near 28th and Arapahoe, with free parking. New clients can try two weeks unlimited for $69. Lagroove.com / instagram: @lagroove_