Opening Soon — South Lamar, Austin
45 minutes. Science-backed programming. Results that stick. Here's everything you need to know about the world's fastest-growing group fitness format — coming to South Lamar in early May.
Secure Your Founder's Deposit →The F45 Method
F45 stands for Functional Training in 45 minutes. Every session combines elements of high-intensity interval training (HIIT), circuit training, and functional movement — designed to maximize calorie burn, build lean muscle, and improve cardiovascular fitness simultaneously.
The "45" isn't a gimmick. Our sessions are precision-engineered to hit the sweet spot between intensity and recovery — long enough to build real fitness, short enough to fit into your life.
How It Works
F45's proprietary programming algorithm generates a new workout every single session — so you never get bored and your body never adapts. Each workout is posted on screens around the studio, eliminating the intimidation of figuring out what to do next.
Workout stations are displayed on TV screens throughout the studio. No guesswork. Just show up and work.
Work and rest intervals are dictated by a timer. Push hard when the clock runs, recover when it stops.
Move through stations hitting different muscle groups and energy systems — no queuing, no waiting.
Certified F45 coaches are on the floor every session to correct form and push your intensity.
Heart rate monitoring and the F45 app let you track performance, effort, and improvement over time.
Over 5,000 exercise combinations mean you'll almost never repeat the same workout twice.
Who It's For
F45 is designed to scale to your fitness level. Every exercise can be modified — from beginners in their first group class to seasoned athletes looking to push harder.
You'll train alongside a community of South Lamar locals who show up, work hard, and support each other. That energy is what makes F45 different from anything else in Austin.
Whether you're coming off the couch or training 5 days a week — F45 South Lamar is built for you.
The Science
F45 programming is built on decades of exercise science. The combination of HIIT, strength training, and functional movement creates what researchers call an "afterburn effect" — your metabolism stays elevated for up to 24 hours after a session.
Excess Post-Exercise Oxygen Consumption keeps you burning calories for up to 24 hours after class ends.
Sessions are designed to push you through multiple heart rate zones, maximizing cardiovascular adaptation.
Every exercise mirrors real-world movement patterns — building strength and mobility that transfers to daily life.
Common Questions
$45 · 2 Unlimited Weeks · Opening Early May
Get 2 weeks of unlimited training for $45 and lock in your place at the front of the line. When Founder's membership rates go live, you'll have access to pricing we'll never offer again.