This maneuver will give you a nice calf massage and promote circulation, which could reduce swelling. Sit and put your arms down at either side. Bend your right leg so your foot is flat on the floor. Straighten your left leg, placing it over your roller. Push down with your arms and right leg, as you roll your left leg over the roller. Do it 1 to 2 minutes per muscle area; then switch to the other leg.