If you want an uppercase A, you would hold down option and the u key, release and then type the letter A. Hold down option and u, release, and then type the letter e for an umlaut over a lowercase E. If you want an uppercase E, you would hold down option and the u key, release and then type the letter E.f you want an uppercase A, you would hold down option and the u key, release and then type the letter A. Hold down option and u, release, and then type the letter e for an umlaut over a lowercase E. If you want an uppercase E, you would hold down option and the u key, release and then type the letter E.
This allows direct comparison of the stroke volume index of large and small patients. Stroke volume index is determined by three factors: Preload: The filling pressure of the heart at the end of diastole. Contractility: The inherent vigor of contraction of the heart muscles during systole. Afterload: The pressure against which the heart must work to eject blood during systole. Starling's Law is the relationship between preload and stroke volume .
Heart rate and stroke volume are related and can determine the health and fitness level of your heart. Photo Credit nyvltart/iStock/Getty Images. Your circulatory and respiratory systems function to supply your body with blood and oxygen through all activity levels, from rest to physical exertion.The amount of blood circulated throughout your body is based on two measurable components -- stroke volume and heart rate.The amount of each that your body is capable of producing is based on factors including fitness level, activity level, body size and medication.our circulatory and respiratory systems function to supply your body with blood and oxygen through all activity levels, from rest to physical exertion. The amount of blood circulated throughout your body is based on two measurable components -- stroke volume and heart rate.