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. Glutes Gluteal Muscles (Glutes) are one of the strongest muscles in the body and are the connecting point between your legs and back muscles. Glutes are used in a variety of actions from moving the leg to extending and rotating the hip, as well as extending and rotating the trunk of the body. Exercise Instructions Step 1 Start in a modified side plank position with you lower leg bent at the knee supporting most of your body weight. Step 2 Make sure your elbow is tucked underneath your shoulder and your hips are raised. Keep you top leg straight and your toes pulled in slightly. Step 3 Raise you leg up and down with control for the recommended number of repetitions.