1. Deep Breathing Lie face-up on a bed or yoga mat with your hands by your side. Take a long, deep breath and focus on the feeling of your rib cage expanding. When your lungs are filled, let out the breath and repeat. 2. Lean Back in a Chair Lean in a chair with both your arms dangling behind you. Hold your hands together and take a deep breath. You should feel the pressure increase in your chest. While keeping your hands together, lean back in the chair. Hold this position for 30 seconds. 3. Side to Side Arm Swings Stand tall with your chest pushed out and your lungs filled with air. Swing your arms side to side from your shoulders. Perform 20 swings in total. 4. Chair Stretch Kneel in front of a chair or another elevated surface. Put both of your palms face down on the chair behind you. Pull your shoulders back and take a deep breath. You should feel a stretch through your pecs and sternum. Hold the stretch for 30 seconds and slowly deepen the stretch as your muscles relax. 5. Standing Twists Stand with your chest puffed out and your shoulders pulled back. Hold your arms in front of you with your elbows at 90 degrees. Twist your upper body quickly but under control in one direction and immediately twist the other direction. Repeat 10 times on each side. If you feel pain in your back, stop.