복근, or "abdominal muscles," refers to the group of muscles located in the front of the abdomen. These muscles play a crucial role in core stability, posture, and movement. They are often associated with physical fitness and are a common focus in exercise routines aimed at strengthening the core. The appearance of 복근 is often sought after for aesthetic reasons, as well-defined abs are considered a sign of fitness. Achieving visible 복근 typically requires a combination of regular exercise, including strength training and cardiovascular workouts, along with a balanced diet to reduce body fat.