
Know your body.Train measurably better.
Your physiological profile from a single field test: Critical Power, training zones, a clear development focus. For you, or as a coach for your whole team. Evidence, not hype: every number with its origin, every recommendation with its data.
A scientific report from your ride data.
You ride a short test on your own roads. You upload the FIT file. Seconds later you get your personal performance profile: every value traces back to a published model, and every recommendation is based on your own data.
From Ride File to Report
Do the Test
Two maximal efforts for the Comprehensive Test, 3' + 12' or 5' + 20', or one short all-out effort for the Quick Test. Pacing, fueling, and consistency between retests all matter: the full protocol walks you through each option.
Where's your potential?
Your Full Diagnostic
Tap the numbered markers to see exactly what each section of your report means.

Performance Diagnostics
- Critical Power (CP) & W'
- VO₂max estimation
- 7-zone training zones
- Percentile ranking
- Downloadable PDF report
- Power Duration Curve
- Everything in Quick Test
- CP from all your maximal efforts (2- or 3-parameter model)
- Power Duration table & W' depletion
- Substrate oxidation model
- Race pacing strategy
- Altitude adjustments
- Training Focus & Development Direction
For comparison: a classic lab diagnostic starts at Fr. 200.–
The lab test, and ours
The same models from the same peer-reviewed research. The lab measures them directly; we derive them from your ride: which is why it costs a fraction, and why you can actually repeat it.
For coaches and teams
Credits instead of single payments. 1 credit = 1 Comprehensive Test, a Quick Test costs half a credit. Each bundle size is CHF 3 cheaper per test than the one before, and credits never expire.
From 100 credits you can also pay by invoice: info@adactivdiagnostics.ch
Buy credits as a coach →Coaches & Teams
Test your entire team at reduced rates. Sign up as a coach to buy credits and invite your athletes.
Frequently Asked Questions
Any cycling computer that exports .FIT files: Garmin, Wahoo, Hammerhead, Bryton, Stages, and more. Your ride just needs to contain power data.
Yes. The analysis uses wattage data to derive your physiological profile. Heart rate alone is not sufficient for this level of accuracy.
Any ride that includes a sustained hard effort. A race, a hard group ride, or a dedicated max-effort test all work.
The formula comes from a lab study of 46 cyclists whose VO₂max was measured by spiroergometry (Sitko et al., 2022). Its input is your 5-minute power per kilogram, which we model from CP and W′. In that study it explained 61–77% of the differences between riders, with a typical error of about ±5 ml·kg⁻¹·min⁻¹. Treat the number as a well-founded estimate, not a lab measurement: it means most when you compare your own tests over time.
Your .FIT files are processed in-memory and never stored on disk. Analysis results are encrypted and only accessible via your unique session link.
Absolutely. The diagnostic provides training zones, metabolic breakdown, and a clear training focus & development direction: everything a coach would extract from a lab test.
Email us anytime at info@adactivdiagnostics.ch: questions, custom team packages, or feedback on your report. We reply within one working day.
Just getting into cycling and want a basic read on your performance? The Quick Test is the right choice: it gives you the key performance metrics quickly and without fuss. Already training regularly and chasing ambitious goals? Then the Comprehensive version is worth it: it offers much more detailed analysis and individual insights to steer your training more precisely and keep raising your level.
Still have a question? Email us at info@adactivdiagnostics.ch.





