Cardiac reserve - Wikipedia
Cardiac reserve refers to the difference between the rates at which the heart pumps blood - at any given time versus its maximum capacity. A measurement of the cardiac reserve may be a health indicator for some medical conditions.
Heart Rate Reserve: How to Calculate It & What It Means - Cleveland Clinic
2023年1月25日 · Heart rate reserve is a fitness indicator and a more accurate way to find your target heart rate. It’s easy to calculate using your maximum heart rate and resting heart rate. A higher heart rate reserve is best, but you can improve your number with exercise.
Cardiac reserve - (Anatomy and Physiology I) - Fiveable
Cardiac reserve is the difference between the rate at which the heart pumps blood at rest and its maximum capacity to pump blood under conditions of stress. It reflects the heart's ability to meet increased demands for oxygen and nutrients by adjusting its output.
Mechanisms of cardiac reserve, cardiac work and oxygen consumption …
2021年5月10日 · Cardiac reserve is the difference between the cardiac output in a maximum activity and the output under basal condition. This can be achieved by increased coronary blood flow, & increased coefficient of oxygen utilization (oxygen extraction ratio) by the myocardial cells to the extent that during severe muscular exercise the coronary venous ...
Physiology, Cardiac Repolarization Dispersion and Reserve
2023年4月17日 · Delayed repolarization in the human myocardium relies mainly on the vast diversity of cardiac potassium channels but also on a particular redundancy in the heart known as the "repolarization reserve," in which one current takes over if another one should fail.[1]
19.4 Cardiac Physiology – Anatomy & Physiology
Since the heart is a muscle, exercising it increases its efficiency. The difference between maximum and resting CO is known as the cardiac reserve.
Cardiac output – Basic Human Physiology
Define cardiac output, and state its units of measurement; Calculate cardiac output, given stroke volume and heart rate; Predict how changes in heart rate (HR) and/or stroke volume (SV) will affect cardiac output; Describe the concepts of ejection fraction and cardiac reserve.
Coronary flow reserve and cardiovascular outcomes: a systematic …
Coronary flow reserve (CFR) describes the ratio by which coronary blood flow can be augmented by exercise, stress, or microcirculatory vasodilation. 1–3 As an index of coronary disease severity, CFR has several biological and practical advantages.
Cardiac reserve Definition & Meaning | Merriam-Webster Medical
6 天之前 · The meaning of CARDIAC RESERVE is the difference between the rate at which a heart pumps blood at a particular time and its maximum capacity for pumping blood.
cardiac reserve - Medical Dictionary
cardiac reserve an increase in cardiac output related to an increase in heart rate or stroke volume to meet body requirements.
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