Our Methodology
How TTrening content, calculators, and training programs are built — and what their limitations are.
What TTrening Is
TTrening is a free fitness resource built for people who want practical training tools, structured programs, and clear educational content — without subscriptions, hype, or forced signup.
It is built and maintained by PJ. TTrening is not a large editorial team or a medical organization. It is an independent fitness site focused on creating practical tools and content built around established training and nutrition principles.
How Content Is Created
Content on TTrening is written and reviewed by PJ. AI-assisted tools may be used to help with research, outlining, drafting, or organization, but final review and publishing decisions are made by a human.
Content is based on generally accepted principles of strength training, exercise science, and sports nutrition. Where appropriate, pages may cite published research, standard formulas, or widely recognized sources.
AI tools may assist with outlining, research support, and drafting. All published content is reviewed for clarity, accuracy, and usefulness before going live.
Content is reviewed and updated periodically, especially when formulas change, clearer explanations are needed, or readers report issues. Where available, pages may display a last-reviewed or updated date.
How Calculators Work
TTrening calculators use established, publicly available formulas and estimation methods commonly used in fitness and nutrition contexts. Where possible, each calculator page notes which formula or method it uses.
- TDEE / BMR: Uses common estimation equations such as Mifflin-St Jeor as a practical baseline
- 1RM: Uses standard rep-max estimation formulas such as Brzycki
- Body Fat: Uses common circumference-based estimation methods such as the U.S. Navy method
- Macros: Uses practical evidence-informed ranges for protein, carbohydrate, and fat targets
All calculator results are estimates. Individual results vary based on genetics, activity level, body composition, and other factors that no formula can fully account for. Use these as starting points, not final answers.
How Programs Are Built
TTrening programs are built around standard training principles rather than proprietary systems. The goal is to make useful templates that are simple, practical, and easy to follow consistently.
- Progressive overload as a core driver of adaptation
- Common split structures such as full body, upper/lower, push-pull-legs, and body-part splits
- Practical balance of training volume, intensity, and recovery
- Exercise selection based on simplicity, effectiveness, and available equipment
Programs are templates — starting points designed to be adjusted based on individual needs, equipment access, and experience level. They are not prescriptions.
Limitations and Disclaimer
TTrening provides educational fitness content. Nothing on this site is medical advice. Consult a qualified healthcare professional before starting any exercise or nutrition program, especially if you have existing health conditions.
This site is built and maintained by one person. Content is reviewed carefully, but it does not follow the same multi-layer editorial process used by larger health publishers. If you notice an error, please report it.
TTrening uses Google AdSense and Amazon affiliate links to cover hosting and development costs. Advertising never influences calculator formulas, program design, or content recommendations.
The goal of this page is simple: to make it clear how TTrening works, what these tools are based on, and where their limits are. Transparency matters more than pretending to be bigger or more formal than this site really is.
Corrections and Feedback
If you find an error, outdated information, or something that could be improved, please reach out. Corrections are taken seriously and acted on.
[email protected]