When you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. This increases the space in your chest cavity, into which your lungs expand. To equalize the pressure, air enters the lungs. When the diaphragm relaxes and moves back up when you exhale, the elasticity of the lungs and chest wall pushes air … Continue reading Core Engagement and Breathing: The Performance Tools You May Not Be Using Correctly
