Deep breath and PPG signal flattening
Taking a deep breath and then holding it increases intrathoracic pressure (pressure inside the chest cavity), which compresses veins returning blood to the heart causing a temporary decrease in venous return and cardiac output, and in turn, peripheral circulation. The reverse occurs after releasing the breath after a deep inhalation.
Associated Applications
Associated Application Notes
WHAT'S NEW
Much of modern research aims to objectively record emotion and mindfulness in order to better...
Stay Connected