Prolonged exercise in the heat will typically cause ..... steady state heart rate over time.

CARDIOVASCULAR PHYSIOLOGY

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

Prolonged exercise in the heat will typically cause ____ steady state heart rate over time.

A	Increased
B	Decreased
C	No change in
D	None of the above

Explanation:

Detailed explanation-1: -During exercise, your heart typically beats faster so that more blood gets out to your body. Your heart can also increase its stroke volume by pumping more forcefully or increasing the amount of blood that fills the left ventricle before it pumps.

Detailed explanation-2: -Norepinephrine is released by your sympathetic nervous system, which accelerates your breathing rate to uptake more oxygen into your bloodstream. Your heartbeat speeds up and grows more forceful, to send oxygen-rich blood to the muscles and expedite the removal of aerobic metabolism’s byproduct, carbon dioxide.

Detailed explanation-3: -Heat stress Exercising in hot weather accelerates fluid loss even more. Heat stress occurs when sweat can’t evaporate fast enough to keep the body sufficiently cool. Many of the symptoms occur as a result of excessive loss of body salts and water (dehydration).

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