The STHENO standard
How STHENO makes a recommendation.
Your plan starts with established training and nutrition principles, then changes in response to what you complete and report. Here is what the system uses, what it does not know, and when human medical care belongs in the conversation.
How recommendations are made
Deterministic rules use the information a person provides—goal, experience, schedule, equipment, training history, and relevant constraints—to produce a starting range. Subsequent changes use completed training, reported effort, recovery, and trend data rather than a one-time prediction.
Evidence and editorial status
Articles identify their author, update date, methodology version, evidence notes, and whether independent review occurred. STHENO does not imply independent medical review where none occurred. Published content is edited for a clear claim, practical decision, limits, and safety boundary.
Exercise library
Only production exercises with reviewed status appear publicly. Profiles expose the content version, exercise taxonomy, education, caution context, and media provenance. The movement schematics are original STHENO illustrations, not scraped third-party demonstrations.
Tools and estimates
Calculators are deterministic and repeatable. Results are starting ranges—not diagnoses, guarantees, or precise measurements of metabolism or body composition. Each tool explains its inputs, useful interpretation, and main limitations.
Safety boundary
STHENO provides fitness education and coaching support. It is not emergency care and does not diagnose injury, illness, eating disorders, or other medical conditions. Sharp pain, chest pain, faintness, neurological symptoms, or unusual shortness of breath require appropriate qualified care.