01 — Exercise Stress Test
GXT
VO2 MAX
TEST
The GXT (Graded Exercise Test) is the gold standard for measuring aerobic capacity. You exercise at progressively increasing intensity while the VO2 Master analyzer measures — breath by breath — exactly how much oxygen your body consumes. The result is your real VO2 max, your true training thresholds, and five personalized zones built specifically around your physiology.
$225 USD
Duration: 45–60 minutes · At your gym
- Real VO2 max — measured, not estimated
- Aerobic threshold VT1 — your fat-burning ceiling
- Anaerobic threshold VT2 — your lactate tipping point
- 5 personalized training zones
- Ventilation efficiency and breathing data
- Full digital report delivered same day
- Results debrief with Luis or Daniel
What happens during the test
01
Warm-up
You start at a comfortable, easy pace. The mask is fitted and calibrated. Your baseline metrics are recorded before the test begins.
~10 minutes
02
Incremental stages
Intensity increases every 2–3 minutes — by speed, resistance, or incline. The analyzer captures every breath in real time throughout.
~20–25 minutes
03
Maximal effort
You push to your true maximum. This is where your VO2 max is confirmed — the point where oxygen consumption plateaus despite increasing effort.
~5 minutes
04
Debrief & report
We walk through your results together. You leave knowing exactly what your numbers mean and how to apply them to your training immediately.
~15 minutes
Data you receive
VO2max
Peak Aerobic Capacity
The maximum amount of oxygen your body can use during exercise — the most reliable predictor of endurance performance and cardiovascular health.
Used for: benchmarking fitness, tracking improvement over time, comparing against sport-specific norms.
VT1&2
Aerobic & Anaerobic Thresholds
VT1 is where your body shifts from fat to carbohydrate as primary fuel. VT2 is where lactate accumulates faster than it clears — your true red zone.
Used for: defining training zones, setting race pace, avoiding overtraining and undertraining.
Z1–5
5 Personalized Training Zones
Your zones are built from your actual thresholds — not age-based formulas. Each zone has a specific physiological purpose and heart rate range.
Used for: structuring every training session with intent — base building, threshold work, VO2 intervals.
Who benefits most from the GXT
HYROX & CrossFit athletes
Know exactly which zones to train in for race-day performance. Stop guessing your pacing strategy — build it around your real aerobic ceiling.
Runners & cyclists
Replace generic heart rate zones with thresholds specific to your body. Train less junk volume and more purposeful work in the zones that actually move the needle.
Coaches & trainers
Design programming around your athletes real physiology. Prescribe zones with confidence, track adaptation with repeat testing, and differentiate your service.
