Know Your Numbers.
Optimize Your Life.
VO₂ Max and Resting Metabolic Rate Testing for Performance, Longevity, and Precision Health
What Is VO₂ Max?
VO₂ Max is the maximum amount of oxygen your body can utilize during intense exercise. It reflects your heart, lungs, and muscles’ efficiency in transporting and using oxygen—a direct indicator of aerobic fitness and endurance.
High VO₂ Max = better cardiovascular efficiency, higher performance potential, and increased resilience.
Understanding your VO₂ Max empowers you to:
Train with precision rather than guesswork
Measure aerobic capacity against age and performance norms
Target your heart rate and power zones for optimized conditioning
Push your limits safely and strategically
What Is RMR (Resting Metabolic Rate)?
Your Resting Metabolic Rate (RMR) is the number of calories your body burns at rest to sustain vital functions like brain activity, organ function, and cell repair. It represents 70–80% of your daily energy expenditure.
Why test your RMR?
Build more accurate nutrition plans
Identify underactive metabolism or adaptations from past dieting
Determine the right caloric intake for fat loss, maintenance, or performance
Prevent plateaus by adjusting training and food based on your actual physiology
With RMR testing, we remove the guesswork and give you real data for real results.
Why VO₂ Max and RMR Testing Matter
Combining VO₂ Max and RMR testing provides a full-spectrum metabolic profile that no wearable, formula, or generic fitness plan can replicate.
You’ll gain:
A clear baseline for training, recovery, and nutrition
Zone-specific heart rate data (Zone 2 through peak output)
Precise caloric targets for fat loss or muscle gain
Metabolic efficiency scores (how well your body uses fat vs. carbs)
Progress tracking tools based on lab-grade performance measures
This is essential for:
✅ Athletes
✅ High-performing professionals
✅ Tactical populations
✅ Executives
✅ Anyone serious about health optimization
Longevity & VO₂ Max – The Gold Standard
VO₂ Max isn’t just about athletic performance—it’s one of the most powerful predictors of lifespan and quality of life.
Research shows a direct correlation between higher VO₂ Max and lower all-cause mortality.
Individuals with a high VO₂ Max in midlife are more likely to maintain independence, cognitive clarity, and vitality into older age.
It is stronger than cholesterol, blood pressure, or weight as a single predictor of longevity.
If you care about healthspan—not just lifespan—knowing and improving your VO₂ Max is non-negotiable.
How the Testing Works
We use the Calibre Metabolic Testing System, one of the most advanced portable gas analysis systems on the market. This technology brings lab-level precision to our clinic—without the lab.
What to expect during your testing session:
🧠 Pre-Test Consultation
We assess your goals, health history, and current routine to customize the experience.
🫁 RMR Test
Performed in a rested, fasted state
You lie down and breathe through a mask for 10–15 minutes
Calibre measures oxygen and carbon dioxide exchange to calculate your true resting burn rate
💨 VO₂ Max Test
Performed on a treadmill or bike
Gradual increase in intensity under supervision of a DPT
Real-time breath-by-breath analysis using the Calibre system
You’ll receive metrics on:
VO₂ Max
Ventilatory thresholds
Respiratory exchange ratio
Substrate utilization (fat vs. carb burn)
Heart rate zones (including true Zone 2)
📊 Data Review and Optimization Plan
You’ll leave with a customized report and expert interpretation, including:
Training recommendations
Nutrition guidelines
Strategies for improving your performance and metabolic health
Why Choose Ascent Total PErformance
You’re not just getting numbers, you’re getting the expertise and insight of a Doctor of Physical Therapy and performance coach who understands how to apply these numbers to real-world goals.
Pricing & Scheduling
Schedule your test today!
FAQs
How should I prepare for testing?
Arrive fasted (no food for 4+ hours), well-hydrated, and rested. Wear exercise attire for VO₂ max testing.
Will this test be uncomfortable or painful?
No. While the VO₂ max test is physically challenging, it is safe and tailored to your fitness level.
Can I do just one of the tests?
Yes. You can choose VO₂ Max, RMR, or both. The full metabolic package gives the most complete picture.