EPK Research develops and publishes the Energy per Kilogram framework—an open, traceable approach to investigating energy availability in relation to body mass.
A working research model. Definitions and boundaries will be documented in each publication.
The EPK Paper Series
Paper 1 is published first as the 37-page foundational working paper. Papers 2–7 are explicitly linked forthcoming papers in the EPK series.
Introduces EPK through original MSc findings, adaptive thermogenesis, appetite regulation, constrained energy expenditure and sports energy-availability research.
63f374915aa6912b90aea8f5f0e093e609f92c2bdaab5ad4b3f6fef38c9f5ca4Explores whether behavioural stability during dieting may itself be influenced by physiological energy availability and compensatory pressure.
Extends EPK beyond static calorie models to examine substrate competition, dietary-fat storage and metabolic flexibility.
Examines whether sports physiology can help explain fatigue, reduced movement and poor recovery in the general population.
Considers energy availability, compensatory physiology and functional decline outside athletic populations.
Sets out a cautious, testable neuroenergetic hypothesis linking energetic sufficiency, movement and metabolic flexibility.
Proposes that immune responsiveness may be shaped by both danger signals and the energetic resources available to respond and recover.
Research principles
The archive is designed for clarity, permanence and constructive scrutiny—not for presenting an evolving hypothesis as settled fact.
Each release is dated, versioned and linked to a permanent citation record.
Clear summaries sit alongside definitions, methods, limitations and references.
Provisional propositions, limitations and research questions are stated so the framework can be examined empirically.
About
EPK Research is an independent project founded by Billy Craig to formalise, document and invite scrutiny of the Energy per Kilogram concept.
Paper 1 establishes the foundation for six connected manuscripts. Each later paper will be released separately with its own version history and citation record.
Publication here does not imply peer review, clinical validation or scientific consensus. EPK thresholds remain provisional and the framework is presented as a testable hypothesis.
billy@enerjarden.com