About Cycling Regimen

Calculator logic is based on published exercise physiology research. Where possible, we reference specific studies -- for example, the FTP calculator draws on Borszcz et al. (2020) for protocol reliability, and our power estimation model references Martin et al. (2001) for aerodynamic drag modelling.

We do not invent proprietary formulas. Every calculator uses standard, replicable methods from sports science literature. When a model requires assumptions (like default CdA values or gross efficiency), we document those assumptions on the tool page itself.

Benchmark tables on our cycling times pages are modelled estimates informed by veteran time-trial standards (VTTA methodology) and exercise physiology pacing research. They are presented as directional references, not official race-result databases.

Every piece of content on Cycling Regimen follows a structured editorial process:

1. Research and sourcing. Calculator logic and content claims are sourced from peer-reviewed journals (PubMed), established sports science textbooks, and recognised standards bodies (e.g., ACSM, VTTA). We link to primary sources directly.
2. Implementation and testing. Calculation code is unit-tested against known reference values. Output ranges are sanity-checked against published physiological norms.
3. Review for accuracy. Content is reviewed for scientific accuracy, logical consistency, and clear communication before publication. We prioritise correctness over engagement metrics.
4. Ongoing updates. Published tools carry version labels and update timestamps. When a calculation model is changed, the page reflects the update date. We aim to review each tool at least once per quarter.

Calculator outputs are estimates, not diagnoses. They are based on population-level models and standard physics assumptions. Your individual physiology, health status, equipment, and environmental conditions will affect real-world results.

We are not a medical provider. If you have health concerns or are returning from injury, consult a qualified healthcare provider before making training decisions based on any calculator output.

Benchmark times on our blog pages are modelled estimates, not licensed race-result databases. They are useful for directional comparison, not for official ranking or competition qualification.