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Melanie Avalon: So, so crazy
Tirzepatide serves as a research tool to examine how multiple receptor pathways interact in metabolic regulation
Because the right downstream cascades are being activated and the wrong ones are not
Key mechanisms: Activates AMPK (the body's master metabolic switch) Restores mitochondrial efficiency more ATP produced per unit of substrate Improves fat oxidation at aerobic paces (better fuel usage during training) Enhances insulin sensitivity Upregulates stress response pathways What this means for lifters over 50: More cellular energy available during training Better endurance and output across a 5-day training week Improved fat-to-muscle composition (body recomp effect) Supports lean mass preservation during caloric restriction Research in aged animal models shows MOTS-C restores exercise capacity close to younger baselines
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