YOU: Lean. Fit. Strong. Just 30 Minutes, Twice a Week.

What if you could become leaner, stronger, and healthier exercising for just 30 minutes, twice a week? And what if this small investment in time markedly improved your favorite sport or activity and decreased your chance of injury?

Our certified personal trainers specialize in a low-force, slow-motion strength training method called Slow Burn (demo video on this page). It is so potent that you will improve your strength, flexibility and endurance - without traditional aerobics or stretching. We guarantee it.

Click on the menu bar above for more detailed info and come in and enjoy a complimentary, no strings attached first session at our NYC or Montclair N.J. location.

Using our Slow Burn personal training method, you don’t have to be in shape to get started. Start and get in shape!

best selling book

Serious Strength owner Fredrick Hahn co-authored the best-selling fitness book The Slow Burn Fitness Revolution.

Tony Robbins

"I highly recommend Fred Hahn's Slow Burn system of exercise. His method is a potent means for developing yourself both physically and spiritually in a safe and time efficient manner."
Tony Robbins
Entrepreneur, Author,
and Peak Performance Strategist