Abs Diet Work Out routines revolve around two body building techniques which are cardio workouts and resistance training. Both cardio exercises and resistance training are required to lose fat and build muscle. You can try anaerobic workouts like running, jogging, cycling or swimming to burn fat. Weight lifting will help you to strengthen your muscles. Try sit-ups using weights which will help to tighten your abdominal muscles. Go for squats that can help to improve your posture and to get rid of fat reserves. You can also try static holds which will help to strengthen the abdominal muscles. Stretching exercises can also tone up your abdominal muscles.