A Coach
As a coach, your reputation hinges on results. You need data you can trust, protocols that fit your workflow, and tools that elevate your athletes without slowing you down. Zone X gives you lab-grade physiological testing—specifically ventilatory threshold analysis—in a fast, portable, and coach-friendly format. Whether you’re running a squad or guiding one-on-one athletes, Zone X delivers the science-backed foundation for smarter training.
Pinpoint VT1 and VT2 with precision
Zone X uses real-time breath-by-breath analysis to accurately detect ventilatory thresholds. These are the most reliable physiological markers for defining training intensities—far more precise than standard heart rate formulas or FTP approximations
Calibrate training zones for every athlete
Export exact training zones based on threshold detection, then align them with power, heart rate, or pace metrics. Every training block is built on solid, individualized physiological data.
Monitor progress with objective biometrics
Track threshold evolution and breathing efficiency over time. Zone X allows you to measure true adaptation and guide program adjustments with data—not guesswork.
Scalable testing with minimal setup
Zone X is portable and fast to deploy—no lab, no treadmill, no medical staff required. You can test athletes in a cycling studio, field setting, or partner facility and deliver results immediately.
Questions?
What metrics does Zone X provide?
Zone X delivers VT1 and VT2, ventilatory equivalents (VE/VO₂, VE/VCO₂), breathing frequency, tidal volume, and respiratory rate across stages—everything needed to build accurate training zones.
Can I test multiple athletes in a session?
Yes. The system supports efficient back-to-back testing, making it ideal for team assessments or periodic re-testing with minimal downtime.
Is it reliable enough for serious athletes?
Absolutely. Zone X is built on validated gas exchange principles and uses high-resolution sensors to deliver consistent, high-quality data.
How long does a test take?
A typical test takes 15–20 minutes of effort, with minimal warm-up and cooldown. Setup and calibration take less than 10 minutes.
Can I use this with junior or masters athletes?
Yes. Zone X is safe and effective for a wide range of age groups and performance levels, adapting to each athlete’s fitness level.
How do I use the data in training plans?
You’ll receive a report with zone recommendations based on VT1 and VT2. These can be mapped directly to structured workouts using power, HR, or pace.
What does a Zone X test result look like?
After your Zone X test, you’ll receive a clear and detailed report similar to this.
Does it replace FTP testing?
It can. Ventilatory thresholds offer a more complete picture of an athlete’s endurance profile and are not subject to pacing errors or motivational limits like FTP tests.