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. Exercise Instructions Step 1 Start in a side plank position with your elbow tucked underneath your shoulder and your feet stacked on top of each other. Step 2 Try to maintain a straight line from your shoulder to your ankle. Step 3 Hold the position for the recommended amount of time or until you cannot maintain proper form.