ProductSolutionsScienceResources
Book a demo
Lab performance testing

Lab-grade VO₂max, even without a VO₂ analyzer.

Even if you don’t own a VO₂ analyzer you can get gold standard accuracy VO₂max readings, only from lactate tests. But this is not where it ends. INSCYD also provides you with fat and carbohydrate combustion rates.

All based on lactate testing only. All steeped in science.

Book a demo See the validation

Your existing lactate protocol · any sport, any ergometer

Trusted by the performance labs behind the best in sport

From university human-performance labs and national federations to private testing studios and WorldTour team physiologists worldwide.

No protocol change

Use the conventional lactate tests you already run.

No change in protocol needed. Turn conventional lactate profile testing into a complete performance assessment.

Just upload the lactate profile test into INSCYD instead of your previous software, excel spreadsheet or whatever other solution you currently use to draw lactate curves.

The 360° metabolic profile
The data you already collect
Lactate profile curve
Blood lactate (mmol/L) across a step test
0 2 4 8 140 240 W 360 LT1 · 2 mmol LT2 · 4 mmol

Drag the divider: the test you already run on the left becomes the full metabolic library on the right.

The cost of more tests

Forget about running multiple tests to measure multiple metrics.

Every extra protocol adds labour time, cost, and the dedication you ask of your clients.

Four protocols, four sessions
  • Spirometry, gas exchangeVO₂maxMetabolic cart and mask
  • Sprint or Wingate testVLamaxAll-out effort, separate session
  • Lactate step testThresholdsLactate analyzer
  • Indirect calorimetryFat and carb ratesGas exchange again
One protocol, one session
Lactate step testThe one you already run
VO₂maxVLamaxThresholdsFat and carb rates
One assessment

One short test. Comprehensive results.

Now you can retrieve all relevant metrics, from glycolytic performance (VLamax) to fat combustion rates, from thresholds to lactate clearance kinetics, from one short assessment.

Metabolic fingerprint
VO₂max Threshold FatMax Economy Body comp VLamax
Limiter · VLamax
Body composition
Fat versus fat-free mass
Body Mass71.4 kg
Body Height181.0 cm
Body Mass Index21.8 kg/m²
Projected BSA1.912 m²
Body Fat8.0 % · 5.7 kg
Fat Free92.0 % · 65.7 kg
Marco Rossimale Test ID#88214 DateMar 12, 2026 TypeLactate SportTriathlon · Cycling ⇆ Change Test
VO₂max
60.2ml/min/kg
VLamax
0.52mmol/l/s
FatMax
355kcal/h
CarbMax
187g/h
Glycogen
486g
LT1
196W
Anaerobic threshold
281W
Economy
12.8ml/min/W
Fat & carbohydrate combustionfatFatMax zonecarbohydrate
watt
Power: 232 wattfat: 355.0 kcal/hcarbohydrate: 289.4 kcal/h
Lactate: recovery & accumulationlactate recoveryla-accumulation
watt
Power: 454 wattlactate recovery: 0.00 mmol/l/minla-accumulation: 8.3 mmol/l/min
Physiology-based training zones
Zone Target Physiological Conditions
ATEnergy aerobicEnergy anaerobic
Fat oxidation 186 AT66[%] aerobic98[%] anaerobic2[%]
Tempo 226 AT80[%] aerobic95[%] anaerobic5[%]
Anaerobic Threshold 281 — aerobic92.1[%] anaerobic7.9[%]
25% Anaerobic 3' 318 AT113[%] aerobic75[%] anaerobic25[%]
25% Anaerobic 90" 352 AT125[%] aerobic68[%] anaerobic32[%]
25% Anaerobic SS 391 AT139[%] aerobic61[%] anaerobic39[%]
How it works

You test. We do the rest.

Forget about manual data processing, fiddling around with graph generation and calculating training zones. From the end of the test to a complete results dashboard in less than 3 minutes.

1

Collect your data

Use the protocol and equipment you already have: a lactate meter, power meter, treadmill, ergometer or a stopwatch. No new gear to buy.

Your usual protocol
2

Upload to INSCYD

Upload the test file. No manual data processing, no fiddling with graph generation, no calculating zones by hand.

Seconds
3

Read the results

A complete metabolic profile and physiology-based training zones, ready to hand to the athlete or drop into a branded report.

Under 3 minutes
Automated reporting

Client-ready reports, in a few clicks.

Create reports to hand out or send to your clients with very few clicks. Add personalized texts, comments and physiology based training zones. These reports are branded with your company logo and colors and are fully customizable to your needs.

The business case

Same time demand, more revenue, higher profit.

Create different service tiers, from basic assessments to more comprehensive offerings. Because those are all based on the same test and the same raw data there is no extra cost or labour involved for you. While you present the results to a lower tier client you can upsell them in the process and simply create the next highest tier report on the fly. That is much easier and more effective than trying to sell the highest tier offering from the start.

Scale without additional investment Multiple athletes at the same time Save time on every test
EUR

01 · Higher revenue per test

The same lactate step test you run today, delivered as a full metabolic profile. Same test time, a report worth more.

€

What a conventional lactate step test bills at today, before the profile.

€

Recommended: €250, the price labs charge for a full metabolic profile. That is €130 more per test, on tests you already perform.

02 · Increased repeat testing

A profile gives every athlete a measurable reason to come back. Retesting becomes part of the service, not a favour you ask for.

Recommended: about one retest per athlete a year. Athletes come back for a second or third profile.

€

Recommended: the same as the full profile. A retest is the same depth of report.

What 12 weeks of training changed, measured

VO₂max+4.2ml/min/kgFatMax+38kcal/hVLamax−0.06mmol/l/sPower at 4 mmol/l+17W

03 · Upsell to full profile and follow-up

Clients who arrive for a basic test, see what they are missing, and upgrade. A share of them also want the training that follows.

People who book a single test, with no coaching relationship yet.

%

Recommended: 50%. Once they see what a basic test leaves out, half upgrade, at €130 more each.

%
€

Recommended: at or above your consultation rate. This is the training that follows the report.

Revenue increase with INSCYD
+€33,000net additional revenue a year
165 INSCYD tests a year · licence at €42/test

Why they come back

Test 1 · MarchRetest · June
VO₂max+4.2 ml/min/kg
FatMax+38 kcal/h
VLamax−0.06 mmol/l/s
Power at 4 mmol/l+17 W
Test 1 12 weeks of training Retest
Next retest booked · 8 weeks
Current testing revenue€7,200 Higher revenue per test+€7,740 Repeat testing+€18,675 Upgrades to the full profile+€3,870 Follow-up training plans+€3,600 Additional revenue with INSCYD€33,885 INSCYD licence at €42/test−€6,930 Net additional revenue€26,955 Total testing revenue€34,155

INSCYD licence: €42 per test at your 165 tests a year, from the volume plans for your region.

Take this calculation with you — we will send the full report to your inbox.

For a precise evaluation tailored to your lab, run the numbers with us on a call.

Book a demo
Retention engine

Give clients a future they want to measure.

Once an assessment is created you can copy that digital twin of an athlete and manipulate it as you like. Change any metric that would bring the athlete closer to their desired goal, a faster marathon time, a better time trial performance or simply burning more fat. That does not only give athletes a perspective and a focus for their training, it also creates the desire to come back and retest to see the outcome.

Performance projectionTry the sliders
current testprojection

Move a slider. The lactate profile answers.

Steeped in science

Proven gold-standard accuracy.

All metrics provided by INSCYD are generated based on the knowledge of peer-reviewed literature. No statistical models, no black-box AI. INSCYD is known as the gold standard for capturing VLamax, even without a sprint test, and independent scientific validation has repeatedly demonstrated its gold-standard accuracy. Its lactate-based VO₂max assessment has been shown to be indistinguishable from spirometry-derived VO₂max in validated protocols.

Every metric that matters

One assessment. The complete picture of your athlete’s physiology.

VO₂max, VLamax, FatMax, thresholds, fuel use and training zones, from a single test in the lab, in the field or fully remote.

Contact usBook a demo