Lie on your back with your legs extended, bending your left knee and drawing it toward your chest. Lift your head, neck, and shoulders off the mat. Place a block lengthwise between your left quadriceps (the front of your thigh) and left elbow, applying pressure to keep the block firmly wedged there. Raise your right leg an inch or two off the floor. On an inhale, reach the right arm overhead, stretching the fingertips and toes away from each other and lengthening down your entire right side. On an exhale, bend your right knee toward your chest, and bring your right elbow to meet it. Keep squeezing the block between the left elbow and knee. Repeat 10 times, and then switch sides.k