MUSCLES ENGAGED Obliques Many people put a lot of focus on working their abs but forget their surrounding neighbors; the oblique muscles. Obliques serve as stabilizers, and are used in almost every physical activity. Exercising your obliques should be a very important part of your workout program. Abdominals The abdominal muscles (abs) provide movement and support to your core area. The deeper and closer to the spine the particular abdominal muscle is, the more effect over body posture it will have, and this often contributes significantly to a healthy back. Equipment Used Barbell A barbell is a piece of exercise equipment used in weight training, weightlifting and powerlifting. Barbells range in length from 4 feet (1.2 m) to 8 feet (2.4 m) and vary in diameter. Exercise Instructions Step 1 Start off in a wide squat with a soft bend in your knees and your body weight on your heels. Hold the barbell at the end, hand over hand and hold your arms away from the torso. Step 2 Rotate your body to one side and lower the barbell over top of your knee. Be sure to keep your core engaged and unhook your outside heel to help initiate the body rotation. Step 3 Pull the barbell back up to the starting position using your obliques and the rest of your core.