Cycling Test Analyst

From cycling test data to clearer coaching decisions.

Analyze cycling power tests, assess data quality, and turn results into structured reports for coaches and athletes.

Upload cycling FIT activity files or provide test summaries in CSV or JSON. The Agent combines reproducible Python calculations with an explanation of what the results mean, their limitations, and the next steps worth considering.

What it can do

• Read FIT activities: extract power, heart rate, cadence, laps, and candidate efforts.
• Check data quality: identify recording gaps, timer interruptions, and other issues that may affect interpretation.
• Analyze power tests: assess structured maximal efforts, including common 3, 6, 12, and 20-minute tests.
• Estimate Critical Power and W′: calculate model parameters, inspect residuals, and compare fitting methods.
• Compare assessments: explain changes in absolute power and, when body mass is available, watts per kilogram.
• Support retesting decisions: highlight inconsistencies and suggest targeted checks when the available evidence is insufficient.
• Prepare reports: provide a technical interpretation for the coach and a concise explanation for the athlete.

Example results

Synthetic demonstration — not a real athlete assessment or a validation study.

For a simulated athlete weighing 75 kg:

Applying the two-parameter model Power = CP + W′ / duration produces:

These demonstration values fit the model exactly by construction. Real assessments require review of test execution, maximal effort, equipment, and testing conditions.

Sprint results are assessed separately and excluded from this two-parameter CP fit.

What you receive

• A summary of the supplied tests and their suitability for analysis.
• Calculated CP and W′ when the data support estimation.
• Fit diagnostics, exclusions, and relevant uncertainty.
• A comparison with previous assessments, when provided.
• Up to three practical priorities for further review or testing.
• Structured JSON results and Markdown reports when calculations are run.

Supported inputs

Efforts detected