11. Rolling Side Planks
This move takes the power of a plank and literally turns it on its side. Start with a knee down and then progress to both legs being straight as you work up to it.
Start in high plank position with your hands directly under your shoulders, fingers pointing forward. Drop your left knee to the ground, and rotate your hips counter clockwise until your right hip is directly over your left hip (perpendicular to the ground). Lift your right arm straight, making sure that your shoulders are stacked in a direct line, your right shoulder above your left. You should look like a T angled on its side. Keep your right leg extended over your bent left leg and lift your hips by squeezing your glutes to keep your side body in a straight line from your shoulders to the end of your straight leg. Slowly rotate your right arm back to the ground as you lift the left knee to return to full plank. Repeat the process on the other side: drop the right knee, and rotate your hips clockwise as your left arm opens to stack the left shoulder over the right. The left leg stays straight over the bent right knee. Squeeze those glutes. Do three sets of 10 (one rep equals rolling to both sides).Image Source: POPSUGAR Photography
