Specific workouts influence muscle differentiation by targeting different muscle fiber types. For instance, strength training primarily develops fast-twitch fibers for power and mass, while endurance exercises enhance slow-twitch fibers for stamina. Each type of workout signals specific adaptations in muscle cells, encouraging them to grow and specialize. Adjusting volume and intensity in training alters the physiological responses, leading to varied muscle adaptations. The choice of exercises, frequency, and recovery periods also plays a vital role in achieving desired muscle characteristics.