내비복근 refers to a specific type of abdominal muscle that is often sought after for aesthetic purposes. The term translates to "navel abs" in English, indicating a well-defined and sculpted appearance around the belly button. Achieving this look typically requires a combination of targeted exercises, a balanced diet, and low body fat levels. To develop 내비복근, individuals often engage in core-strengthening workouts, such as planks and crunches, while also incorporating cardiovascular activities to reduce overall body fat. Consistency in both exercise and nutrition is key to revealing these muscles, making it a popular goal for fitness enthusiasts.