Stand facing a wall, about 12 inches away from it. Extend your arms in front of your shoulders to place your hands flat on the wall, keeping the elbows bent. Keeping both feet flat, step or slide your left foot (pictured) back, lengthening your left leg and straightening your arms.
You should feel the stretch in the calf of the back (straight) leg.
Breathe deeply and hold for 10-30 seconds. Switch sides.
Stretch to the point of "mild discomfort," not to the point of pain. Never bounce. Keep the shoulders relaxed away from your ears. The more your lower your heel to the floor, and the farther you slide your straight leg behind you, the deeper you will feel this stretch.
Muscles Stretched: Calves