Example measurement · 18/12/2025
254 W
30 min · 3.6 mmol/L
linked · 18/12/2025
Lab
Lab demo
Try MLSS calibration and method comparison with example athletes.
2 example measurements
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MLSS history
Example measurement · 12/01/2026
274 W
30 min · 3.8 mmol/L
linked · 12/01/2026
Check the MLSS criterion
Beneke 2003: 30-minute constant-load test; lactate may rise by at most 1.0 mmol/L between minute 10 and 30. Calculation aid only, nothing is stored.
Your MLSS-calibrated method
Mader 4 mmolMean error ±5.5 W (2.1%)
Based on 2 comparison pairs. Plan at least 3 linked MLSS tests for stable recommendations.
2nd place: Log-Poly-ModDmax (±26.6 W)
Method ranking against MLSS
Ground truth (MLSS)254 W
Lactate stable at 3.6 mmol/L · 30 min duration
Mader 4 mmol
246 W±8 W(3.0%)Log-Poly-ModDmax
236 W±18 W(6.9%)Modified Dmax
225 W±29 W(11.5%)Dickhuth IAT
222 W±32 W(12.7%)Delta +1,5
217 W±37 W(14.7%)Dmax (Original)
213 W±42 W(16.3%)Ranking uses absolute deviation from the MLSS value. The best match is highlighted in green. MLSS itself has day-to-day variation of ±3–8 W (bike) or ±5–10 s/km (run); collect at least 3 comparison pairs for stable method recommendations.
Method ranking against MLSS
Ground truth (MLSS)274 W
Lactate stable at 3.8 mmol/L · 30 min duration
Mader 4 mmol
270 W±4 W(1.3%)Log-Poly-ModDmax
238 W±36 W(13.0%)Modified Dmax
238 W±36 W(13.0%)Delta +1,5
236 W±38 W(13.7%)Dickhuth IAT
236 W±38 W(13.7%)Dmax (Original)
230 W±44 W(16.1%)Ranking uses absolute deviation from the MLSS value. The best match is highlighted in green. MLSS itself has day-to-day variation of ±3–8 W (bike) or ±5–10 s/km (run); collect at least 3 comparison pairs for stable method recommendations.
Compare methods
LABHow does the calculation method affect your threshold estimate? These are six ways of analysing the same measurements.
Calculated thresholds for this test207 W – 243 W
The values depend on the calculation method. They show neither a change in your performance nor a recommended training range.
| Method | Threshold |
|---|---|
| Log-Poly-ModDmax | 228 W |
| Modified Dmax | 216 W |
| Dmax (Original) | 207 W |
| Delta +1,5 | 212 W |
| Mader 4 mmolFixed 4 mmol/L threshold | 243 W |
| Dickhuth IAT | 212 W |
Rounded to whole seconds or watts. Values displayed as equal may differ before rounding.
Which method is right for me?
This comparison cannot decide that. Additional constant-load tests can check whether an estimate matches your sustainable intensity limit (MLSS tests). Scientific background ↗
Show lactate curve with methods
Choose a method to locate its threshold on the curve. Or compare two methods directly.
Tap a measurement point. Its values stay visible below the curve. Vertical lines are calculated thresholds, not measurements.
Choose a measurement on the curve or from this list.