Skeletal muscle plays key roles in physical movement, energy balance, and protein metabolism. It is crucial for glucose uptake and amino acid storage, influencing energy and protein metabolism across ...Skeletal muscle plays key roles in physical movement, energy balance, and protein metabolism. It is crucial for glucose uptake and amino acid storage, influencing energy and protein metabolism across the body. Conditions like sarcopenia and cachexia result from muscle loss due to aging, diseases, and metabolic shifts, leading to negative health and economic consequences.