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Myocardial Energetics

Meaning

Myocardial energetics describes the complex biochemical processes by which the heart muscle, the myocardium, generates and utilizes the chemical energy required for continuous contractile function. This process primarily involves the efficient production of Adenosine Triphosphate (ATP) through the oxidation of various substrates, including fatty acids and glucose. The heart’s remarkable ability to rapidly switch between these energy sources is crucial for maintaining cardiac output and adapting to changes in metabolic demand. In the context of hormonal health, endocrine factors significantly influence substrate preference and mitochondrial efficiency, directly impacting cardiac performance and longevity.