Cardiac Capacity Definition

cardiac capacity

The ability of the HEART to increase CARDIAC OUTPUT to meet the body’s increased needs for oxygen during physical activity or exercise. Cardiac capacity is a combination of the heart’s physical condition and the body’s AEROBIC FITNESS level. Damage to the heart, such as may occur with MYOCARDIAL INFARCTION and ISCHEMIC HEART DISEASE (IHD), reduces capacity, as do conditions that weaken the heart MUSCLE such as CARDIOMYOPATHYand HEART FAILURE.

Cardiac capacity also diminishes as a normal dimension of aging. Aerobic conditioning through consistent, moderate to intense, AEROBIC EXERCISE improves cardiac capacity and helps sustain cardiovascular health.

See also AEROBIC CAPACITY; AEROBIC EXERCISEAGING, CARDIOVASCULAR CHANGES THAT OCCUR WITHPHYSICAL EXERCISE AND CARDIOVASCULAR HEALTH.

Cardiac Capacity – definition
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