Skeletal Muscle Adaptability: Significance for Metabolism and Performance

<jats:title>Abstract</jats:title><jats:p>The sections in this article are:</jats:p><jats:sec><jats:title>Motor Unit</jats:title><jats:sec><jats:title>Fibers per Motor Unit</jats:title></jats:sec><jats:sec><jats:title>Contractile Properties</jats:title></jats:sec><jats:sec><jats:title>Biochemical Basis for Differences in Twitch Properties</jats:title></jats:sec><jats:sec><jats:title>Histochemical Differentiation of Muscle Fibers</jats:title></jats:sec><jats:sec><jats:title>Ultrastructural Basis for Skeletal Muscle Fiber Typing</jats:title></jats:sec><jats:sec><jats:title>Maximal Contractile Force</jats:title></jats:sec><jats:sec><jats:title>Speed of Contraction</jats:title></jats:sec><jats:sec><jats:title>Fatigue Characteristics</jats:title></jats:sec><jats:sec><jats:title>Metabolic Characteristics</jats:title></jats:sec><jats:sec><jats:title>Ionic Composition of Skeletal Muscle</jats:title></jats:sec><jats:sec><jats:title>Summary</jats:title></jats:sec></jats:sec><jats:sec><jats:title>Muscle Fiber Composition in Human Skeletal Muscle</jats:title></jats:sec><jats:sec><jats:title>Motor‐Unit Recruitment</jats:title></jats:sec><jats:sec><jats:title>Adaptive Response in Skeletal Muscle</jats:title><jats:sec><jats:title>Muscle Size</jats:title></jats:sec><jats:sec><jats:title>Metabolic Capacity</jats:title></jats:sec></jats:sec><jats:sec><jats:title>Connective Tissue</jats:title></jats:sec><jats:sec><jats:title>Capillaries</jats:title><jats:sec><jats:title>Methodology</jats:title></jats:sec><jats:sec><jats:title>Anatomy</jats:title></jats:sec><jats:sec><jats:title>Capillary Density</jats:title></jats:sec><jats:sec><jats:title>Capillary Length and Diameter</jats:title></jats:sec><jats:sec><jats:title>Use and Disuse</jats:title></jats:sec><jats:sec><jats:title>Regulation</jats:title></jats:sec></jats:sec><jats:sec><jats:title>Significance of Adaptation</jats:title><jats:sec><jats:title>Muscular Size</jats:title></jats:sec><jats:sec><jats:title>Substrate Stores</jats:title></jats:sec><jats:sec><jats:title>Enzyme Activities</jats:title></jats:sec><jats:sec><jats:title>Summary</jats:title></jats:sec></jats:sec>