Muscle Atrophy Prevention is the clinical strategy focused on halting or reversing the undesirable loss of skeletal muscle mass and associated functional strength, a process accelerated by catabolic states or hormonal deficiency. This proactive approach is critical for maintaining metabolic health and physical independence across the lifespan. We intervene to preserve myofibrillar protein balance against degradation. This strategy underpins long-term physical capacity.
Origin
The term combines muscle atrophy, meaning muscle wasting, with the proactive goal of prevention, aiming to stop this physiological decline before significant functional loss occurs. Its relevance is high in endocrinology due to the profound role of anabolic hormones in maintaining muscle mass. It is a key objective in managing age-related changes or chronic illness.
Mechanism
Prevention hinges upon tilting the net protein balance toward synthesis, primarily by maximizing anabolic signaling through the insulin/IGF-1 axis and ensuring adequate substrate availability. Minimizing chronic elevation of catabolic hormones, such as cortisol, is equally important in blocking the ubiquitin-proteasome pathway responsible for protein breakdown. Effective protocols modulate these opposing forces decisively.
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