When you train with Heart Zones, you're not just using a fitness program; you're using a system built on a proven, patented foundation. It’s a core part of our DNA, and it all started with our founder, Sally Edwards.
We want to share the story of a milestone that shaped our company and the fitness industry.
Back on January 12, 2012, our founder and CEO, Sally Edwards, was awarded U.S. Patent No. 8092381. This wasn't just a proud moment for our team; it was a landmark achievement. This patent for our Threshold Training System was, and remains, the first-ever federal patent awarded by the U.S. Patent and Trademark Office for a cardio training program.
More than a decade later, the principles of this system are more relevant than ever and continue to be the engine behind the results our users achieve.
What is the Patented Threshold Training System?
Described as a “system for increasing the fitness level of a fitness enthusiast,” our patented system is the science that makes Heart Zones so effective.
Instead of relying on generic, one-size-fits-all formulas, the Threshold Training System uses a personalized set of exercise intensity zones. It works by helping to determine a unique threshold level for each individual, using key metrics like oxygen consumption and metabolic biomarkers. This personal data is what allows us to create training zones perfectly tailored to your body and your goals.
A Legacy of Innovation
Our commitment to science-based fitness runs deep. It dates all the way back to 1992, when Sally—an exercise physiologist, author, and former Master’s World Record holder in the Ironman Triathlon—first developed a revolutionary five-zone training system.
That original system was so effective it was quickly embraced by trainers and cardio equipment manufacturers worldwide, eventually becoming part of the public domain. The 2012 patent protects the next generation of that system, cementing Heart Zones' place as the gold standard in cardio training using wearable technology.
How Our Patented Zones Still Work for You
The power of the Heart Zones Training System lies in its clear, goal-oriented zones. Each zone corresponds to a different cardiac training range and comes with a specific set of benefits. This philosophy has always been our guide: training isn't just about going hard; it's about training smart.
By training in the right zone, you can target specific outcomes. For example:
- The Healthy Heart Zone (50-60% of Max Heart Rate): This is the ideal zone for improving overall heart and lung function and reducing health risks.
- The Temperate Zone (60-70% of Max Heart Rate): Famously known as the "fat-burning zone," up to 85% of the total calories you burn in this zone are fat calories, making it highly effective for weight management.
A Proven System That Endures
That 2012 patent wasn't just a piece of paper. It’s a testament to our long-standing commitment to providing a smarter, more efficient way to train. It's the validation behind our system that helps individuals define their own training programs to improve performance and health.
Whether you're a seasoned athlete or just beginning your fitness journey, you're benefiting from a system with a proven, patented history. We were incredibly proud of Sally's historic achievement in 2012, and we remain just as proud today to continue that legacy with every person we help.
Ready to train with a system built on a landmark patent? Explore our Heart Zones programs and heart rate monitors for schools or clubs today!