A good workout for developing six-pack abs incorporates both core-strengthening exercises and calorie-burning cardiovascular training. When combined with a lean diet, an aggressive workout regimen is a good way to develop visible, well-defined abdominal muscles.
Exercises that force a muscle to flex against resistance will strengthen it. Crunches, sit-ups and leg lifts are good choices for improving abdominal strength. Exercises that require core rigidity, such as planks, pull-ups and push-ups, are also good choices. The six-pack ab physique is enhanced when the back, chest, intercostal muscles, internal obliques and external obliques are strengthened as well.
No matter how strong the abdominal muscles are, they can be difficult to see if they are hidden behind thick layers of fat or loose skin. Abdominal fat softens the outline of the abdominal muscles and reduces their apparent definition. Athletes must achieve a lower body-fat content to gain muscle definition. Increased daily activity and regular cardiovascular training will create a calorie deficit that leads to an overall leaner physique. Athletes may accelerate their results by adopting a reduced-calorie or low-fat diet. Before beginning a new workout regimen, it is important to consult a physician or sports trainer for advise and, if necessary, supervision of the workout program.