Physical Recomposition is the simultaneous achievement of increasing lean muscle mass concurrent with decreasing total body adiposity, a process often challenging to achieve due to conflicting energy demands. This state requires superior anabolic signaling relative to catabolic signaling, often necessitating precise hormonal optimization. It is a superior metric of metabolic health compared to simple weight change alone.
Origin
The term is derived from body composition analysis, where “Recomposition” signifies a structural rearrangement of mass components. It implies a deliberate, strategic effort to alter the ratio of fat mass to fat-free mass.
Mechanism
Successful recomposition hinges on maximizing muscle protein synthesis via mTOR activation while maintaining a caloric environment that favors lipolysis for energy substrate. This metabolic partitioning is heavily influenced by insulin sensitivity and the balance between growth hormone/IGF-1 and cortisol. Strategic resistance training provides the necessary mechanical stimulus to signal muscle adaptation. When the endocrine environment is favorable, the body can efficiently allocate energy resources to tissue building while drawing on fat stores.
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