In pilot · accepting partners
CPET interpretation for performance & clinical labs

Read every
breath your
cart throws away.

A maximal CPET produces tens of thousands of data points; the standard report collapses them to a single number. Aevox surfaces what gets discarded — substrate oxidation, threshold confidence, glycogen-aware fueling, training zones anchored to physiology — in a report your clinicians can defend.

HPUCCSEX
Hybl Performance Center · CommonSpirit Health · EXOS
Active pilots · Colorado Springs
k.mendoza · 04
412 breaths analyzed
VO₂max measured
59.5ml/kg/min
Superior · 97th percentile, men 30–39
VT1
32.0HR 123
VT2
54.9HR 168
Peak HR
177bpm
Fatmax
0.70g/min · HR 122
Maximal effort confirmedRER 1.14·plateau
Signature feature · fueling

Glycogen, modeled
by the minute.

Most reports stop at “consume 30–60 g/h.” Aevox derives a per-athlete glycogen pool from VO₂max, body comp, and substrate oxidation — then tracks depletion across the event distance and intensity the athlete is actually training for.

Modeled glycogen over time
moderate riskcritical · ~30%
0 g125 g250 g375 g500 gcritical (~30% · 140 g)0m30m60m90m120m120 min · HR 155 · 277 g remaining
Intensity
155 bpm · 75% HRR · 83% HRmax
Duration
120 min
Glycogen pool
~468 g · derived from VO₂max, mass, age, sex
Depleted at end
41% · ~277 g remaining
Per-hour dose · prescription
derived from the depletion model above
Carbohydrate
73g / hour
Per 20-min interval
24g · 1 gel or ≈250 ml mix
Session total
146g · 120 min
Blend guidance: 2:1 glucose-to-fructose maximizes intestinal absorption above 60 g/h. Practice in training before race day.

Same model in the live tool. Glycogen pool scales with VO₂max, mass, age, and sex; depletion follows a published intensity-and-duration curve. Adjust intensity or duration to re-score the prescription in real time.

Threshold detection

The plot a clinician
actually wants.

VE/VO₂ and VE/VCO₂ scatter, with VT1 and VT2 placed by an ensemble of detectors and surfaced with a confidence score. Where detectors disagree, the band widens. Where they agree, you sign off and move on.

Ventilatory equivalents · vs VO₂
VE/VO₂VE/VCO₂
2025303540455055102030405060VT1 · 96%VT2 · 78%VO₂ (ml/kg/min)
96%high
VT1 confidence
4/4 detectors agree
78%review
VT2 confidence
3/4 detectors · review
How it's scored

Four detectors — V-slope, VE/VO₂ nadir, VE/VCO₂ nadir, excess CO₂ — vote on each threshold. Confidence = % agreement, with a draggable override and full audit trail.

Everything else in the report

Four more analyses, from the
same breath-by-breath file.

Each card is interactive in the live report and exportable as PDF, JSON, or signed share link.

● substrate oxidation

Fat vs carbs, across the intensity spectrum.

Where does fat oxidation peak? Where does the crossover happen? At what HR does carb burn dominate? The substrate curve answers all three — and tells the athlete how to fuel it.

0%25%50%75%100%80100123145168177HR (bpm)VT1VT2crossover · HR 129% energyfatcarb
Fatmax · 0.70 g/min @ HR 122crossover · HR 129VT2 · HR 168
● HR zones

Anchored, not approximated.

Six zones placed off VT1, VT2, fatmax, and peak — not 220-minus-age. Translate physiology into the prescription a coach hands an athlete.

Z1
94113
Z2
113123
Z3
123163
Z4
163168
Z5
168179
Z6
179187
94141187 bpm
● running economy

Quantified, not estimated.

Running economy is the oxygen cost to cover one kilometer. The biggest predictor of race performance after VO₂max — and the only metric that tells you whether your training is making you faster for free.

193ml O₂/kg/km
@ 6:00/mi · HR 168 · well-trained range
18520021510:008:347:306:406:005:27
elite ≤185trained 185–210recreational >210
● coach takeaways

The “what do I do with this?” page, written for you.

  • polarizedTarget ~80% of weekly volume below HR 123 (VT1), ~20% above HR 168 (VT2).
  • long runLong runs at HR 117127 train fat oxidation and mitochondrial density.
  • thresholdThreshold sessions at HR 163168 — 4×8 min or 2×20 min, ~3 min recovery.
  • race fuelingFor events > 90 min, target 73 g/h carbs and ~500 ml/h fluid. Practice in training.
Built & calibrated by physiologists

A report your medical
director can sign.

01
Origin

Built by a UCCS Applied Physiology MSc.

Aevox started as the analysis pipeline for a graduate research program at the University of Colorado Colorado Springs — not as a SaaS retrofit of a startup idea.

02
Calibration

Calibrated against the Douglas-bag reference.

Substrate oxidation and threshold scoring were calibrated in graduate work against Douglas-bag gas collection — the gold-standard reference method. Formal multi-site validation is a planned next step with our pilot partners.

03
Pilot

In production at Hybl Performance Center.

Live in pilot at the Hybl Performance Center via CommonSpirit Health, alongside EXOS in Colorado Springs. Real athletes, real reports, real clinician sign-off.

JM
Jack Mislinski · founder, MSc Applied Physiology (UCCS)

I built Aevox during my graduate work to score the analyses I kept wishing the cart software did itself. Every formula in this report has a citation behind it — happy to walk you or your medical director through the methods. jack@aevox.health

Two audiences, one report

Built for the people scoring the test and the people signing the check.

For the lab director

A defensible report,
every time.

Threshold confidence scoring, audit trails, methods you can stand behind. The pipeline doesn't replace your clinical judgment — it puts it on a foundation you can sign your name to.

  1. 01Ensemble VT detection · 4 detectors
  2. 02Confidence scores on every threshold
  3. 03Custom protocols & reference equations
  4. 04Calibrated against Douglas-bag reference
For the clinic owner

A profitable
testing program.

Manual scoring is the bottleneck on a clinical-grade test. Aevox compresses report turnaround from days to minutes — and the report your clinic ships looks like it was built by a research lab.

  1. 01Co-branded PDF · your domain on shares
  2. 02Higher throughput without adding staff
  3. 03ROI memo from a 2-week pilot
  4. 04White-label across multi-site networks
Aevox vs the standard report

Same cart, same test —
a different report.

Aevox
What ships with the cart
Threshold detection
Ensemble of 4 detectors with confidence score
One method, no confidence reported
Substrate oxidation
Fat & carb g/min from Weir + RER, with fatmax + crossover
Not in the standard report
Glycogen-aware fueling
Per-athlete pool model, depletion curve, dose/hour
Generic 30–60 g/h table
HR zones
6-zone, anchored to VT1 / VT2 / HRmax
%HRmax bands (220-minus-age)
Running economy
ml O₂/kg/km vs pace, comparator bands
Not computed
Time to interpretable report
Automated — minutes from CSV upload
Hours of manual scoring
Methods transparency
Every formula cited; clinician audit trail
Closed-source vendor algorithms
Native imports

The cart you own already works.

Drop the export, get a report.
COSMEDK5 · Quark · Omnia
ParvoMedicsTrueOne 2400
VyaireVmax · OxyConPro
MGCCCM Express
CortexMetalyzer 3B
GerathermErgostik
Genericbreath-by-breath CSV
GarminFIT zone export
COSMEDK5 · Quark · Omnia
ParvoMedicsTrueOne 2400
VyaireVmax · OxyConPro
MGCCCM Express
CortexMetalyzer 3B
GerathermErgostik
Genericbreath-by-breath CSV
GarminFIT zone export
Frequently asked

Questions clinics ask first.

Does Aevox replace our cart software?+

No. Your cart still runs the test and exports the breath-by-breath data. Aevox reads that export and produces the interpretation report — substrate, thresholds, fueling, zones, economy. You keep your existing protocols and reference equations.

Which metabolic carts are supported?+

COSMED (K5, Quark, Omnia), ParvoMedics TrueOne 2400, Vyaire Vmax & OxyConPro, MGC CCM Express, Cortex Metalyzer 3B, Geratherm Ergostik, plus generic breath-by-breath CSV. New carts added on request — typically a 2–3 day turnaround.

How long does interpretation take?+

Once the CSV is uploaded, the full pipeline — threshold detection, substrate oxidation, fatmax search, zone derivation, fueling estimation, and economy quantification — runs in parallel and a clinician-ready report is back in minutes, not days.

Is the data HIPAA-handled?+

We treat every test as PHI. Files are processed in-region, encrypted in transit and at rest, and never used to train shared models. A signed BAA is available for clinical partners on request.

Can our medical director audit the methods?+

Yes. Every threshold, every formula, every classification has a citation and an audit trail in the report. Detectors and confidence scores are visible — overrides are first-class and recorded with the clinician's name.

What does onboarding look like?+

Two weeks. Week 1: connect your cart export, configure your reference equations and protocols, cross-check against three of your historical tests. Week 2: live shadow-scoring on new tests with a clinician sign-off step. Then you're in production.

How do you handle pediatric or special-population athletes?+

Reference equations are configurable per-protocol. We support pediatric percentile norms (Cooper Institute, Wasserman), and the threshold detector ensemble works the same way at any size — confidence scoring tells you when a test is unusual.

Question we missed? jack@aevox.health.