Specificity Of Adaptation

Statement

Why it matters

Prevents magical thinking about exercise --- you get what you train for, not 'general fitness'

Why Foundational

Foundational because the principle is exercise-physiology bedrock — the body adapts specifically to the imposed demands. Running builds running capacity, swimming builds swimming capacity, lifting builds lifting capacity. Cross-transfer is limited to underlying capacities (cardiovascular base, neuromuscular coordination patterns) but the specific motor patterns trained are what improve. Replicated across decades of training research. Prevents magical thinking about "general fitness" — you get what you train for. Realised's pillar architecture acknowledges this: dietary protocols don't substitute for movement protocols, sleep doesn't substitute for resistance training, and within physical practice, capacity types must be specifically trained.