Active Metabolic Testing · Charlotte, NC
The Key to Fitnessand Longevity
VO2 Max Testing
Understand your VO2 Max with precision analysis. Unlike fitness trackers, a professional test provides accurate data to optimize training. Unlock ideal training zones, maximize fat burn, enhance recovery, and boost performance.
20–30 min
Test duration
Gold standard
Clinical accuracy
Light warm-up
Simple prep
Same day
Digital results
Discover what your workouts are missing
The Secret to Superhero Endurance
Transform your weight loss journey, elevate your performance, and extend your longevity. VO2 Max is the cornerstone of targeted training, offering insights into your body's maximum oxygen utilization — so you can tailor your training regimen with precision.
VO2 Max — your maximal oxygen uptake — is the most powerful measure of cardiovascular fitness available. It tells you how efficiently your body uses oxygen during exercise, which directly determines your endurance, recovery speed, and fat-burning capacity.
Fitness trackers estimate your VO2 Max using heart rate formulas — but those estimates can be off by 15–20%. A professionally administered test gives you the real number, measured directly from your breath in real time.
At Biosum, we bring clinical-grade active metabolic testing to Charlotte via our mobile lab. The test, the zones, and the roadmap — all delivered the same day.
Get your testThe science behind it
What Is VO2 Max?
VO2 Max is the highest amount of oxygen your body can use during incremental exercise — “V” for volume, “O₂” for oxygen, and “Max” for maximum. Together they describe your aerobic capacity: a single number that guides optimal performance and health. During a test you exercise at progressively increasing intensity while breathing through a mask that analyzes your exhaled air, establishing your true aerobic ceiling — and the critical thresholds below it.
Understanding Your VO2 Max
Maximal Metrics
VO₂ Max + HR MaxVO2 Max and HR Max, vital indicators of your cardiovascular fitness.
Ventilatory Thresholds
VT1 & VT2VT1 and VT2 thresholds mark important shifts from aerobic and anaerobic metabolism.
Custom Training Zones
Personalized zonesTargets training at the most effective intensity for your specific goals.
Breathing Metrics
Tidal volume + RRTidal volume and respiratory rate for a complete picture of your breathing efficiency.
Is it right for you?
Should I Get a VO2 Max Test?
VO2 Max testing is valuable for fitness enthusiasts, athletes, and individuals of all levels. If you care about training effectively, recovering well, or living longer — this test gives you the data to do all three.
Fitness enthusiasts, athletes, and individuals of all levels
Anyone looking to identify their optimal training zones
Those wanting to prevent overexertion and train smarter
People focused on longevity and long-term cardiovascular health
Endurance athletes building a data-driven training plan
Anyone whose fitness tracker zones feel off or inconsistent
Those wanting a complete metabolic picture alongside an RMR test
What you gain
VO2 Max Benefits
Identify Your Training Zones
Know exactly which heart rate zones drive fat burn, aerobic base building, and peak performance — and stop training by feel alone.
Maximize Fat Burn
Your VO2 Max data reveals the precise intensity where your body burns the most fat per minute — a number no fitness tracker can give you.
Enhance Recovery
Understanding your aerobic thresholds helps you structure rest and recovery so you adapt faster and avoid the overtraining trap.
Boost Performance
Whether you're training for a marathon or your first 5K, precision data lets you build a plan that matches your body's actual capacity.
Predict & Extend Longevity
Recent research underscores VO2 Max as a premier indicator of longevity. It's one of the strongest predictors of long-term health outcomes.
Prevent Overexertion
Most people train too hard on easy days and not hard enough on hard days. Your thresholds put an end to guessing.
Transparent pricing
VO2 Max test packages
Pair your VO2 Max test with an RMR for the complete metabolic picture.
Why Biosum
Considering your
VO2 Max test?
Every VO2 Max test includes an in-person results review with our team. We help you understand your training zones and how to apply them — not just hand you a report.
In-person results review and training zone walkthrough
Mobile lab — we come to you, no gym or clinic required
Same-day digital report, shareable with your coach or provider
Nutritional and endurance guidance available post-test
Jake & Lora
Founders, Biosum
Measure. Motivate. Transform.
Your best self. What's stopping you?
Book your VO2 Max test