part of skeletal muscle adaptation skeletal muscle fiber adaptation GO:0043503 skeletal muscle fibre plasticity Any process in which the skeletal muscle fibers change their phenotypic profiles in response to altered functional demands and a variety of signals. Muscle fibers are formed by the maturation of myotubes. They can be classed as slow, intermediate/fast or fast. biological_process skeletal myofiber plasticity skeletal myofibre plasticity skeletal muscle fiber plasticity cellular response to stimulus