Cardiac output (known as âQâ) is a measure of the amount of blood that is pumped out of the heart in one minute. âQâ specifically refers to the amount of blood pumped out of the left ventricle as this is the ventricle that supplies blood to the muscles and organs of the body.
Preload is defined as the actual stretch or tension on the ventricular myocardium prior to contraction (Totora & Gabowski 2002). The greater the preload on the myocardium (the larger the amount of blood that has filled the heart during diastole), the greater the contraction will be.
Bearing Preload. Bearing is usually selected to have a small. clearance during normal operation, but some bea-. rings are selected to have a negative clearance, when mounted, to generate the internal stress, so. that various effects can be achieved. This is so-called preload method, which can be.