Which age group is the fastest-growing segment of the
A. Preadolescents.
B. Adolescents.
C. Adults aged 65 to 85 years.
D. Adults older than 85 years.
Increased after load associated with increased peripheral resistance as a result of aging causes
A. Left ventricular hypertrophy.
B. Kidney failure.
C. Liver damage.
D. Liver failure.
An increase in both systolic and diastolic blood pressure at rest and during exercise often accompanies aging. Blood pressure usually increases because of
A. Increased arterial compliance and decreased arterial stiffness.
B. Decreased arterial compliance and increased arterial stiffness.
C. Decrease in both arterial compliance and arterial stiffness.
D. Increase in both arterial compliance and arterial stiffness.
In terms of chronological age, early childhood is usually described as
A. Birth to 3 weeks.
B. 3 weeks to 1 year.
C. 1 to 6 years.
D. 7 to 10 years.
As a result of exercise training, cardiac output becomes
A. Higher at any given workload.
B. Lower at any given workload.
C. Essentially unchanged at any given workload.
D. Diminished because of reduced SV.
During exercise, SV increases as a result of
A. The Frank-Starling law.
B. Increased HR.
C. Increased ejection fraction.
D. Increased pulmonary artery pressure
Which of the following describes a normal postexercise blood pressure (BP) response?
A. Elevated systolic and diastolic values compared topreparticipation values.
B. Progressive decline in SBP.
C. Progressive increase in SBP.
D. Exaggerated decrease in DBP.
Stroke volume is defined as
A. The product of cardiac output and total peripheral resistance.
B. The difference between EDV and ESV.
C. The product of preload and HR.
D. The product of cardiac output andarteriovenous oxygen difference.
Cardiac output is a function of
A. HR, preload, after load, and contractility.
B. HR and SBP.
C. SV and EDV.
D. Maximal oxygen consumption andarteriovenous oxygenation difference.
Which of the following are byproducts of aerobic metabolism?
A. Carbon dioxide and water.
B. Oxygen and water.
C. ATP and oxygen.
D. Hydrogen and oxygen.
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