PHYSIOLOGY
CARDIOVASCULAR PHYSIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It’s weaker and so it pumps less times a minute
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It’s weaker so pumps less blood each beat, meaning it needs to beat more times a minute
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It’s stronger and therefore pumps more times a minute
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It’s stronger so pumps more blood each beat, meaning it does need to beat as much
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Detailed explanation-1: -People who regularly exercise can have bradycardia because they are in good physical shape. Bradycardia doesn’t affect these people because their heart pumps blood more efficiently and meets their body’s needs even though it beats slower.
Detailed explanation-2: -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-3: -Causes of bradycardia Metabolic problems such as hypothyroidism (low thyroid hormone) Damage to the heart from aging, heart disease or heart attack. Certain heart medications that can cause bradycardia as a side effect. Congenital heart defects (present at birth)
Detailed explanation-4: -Also, your body’s hormonal state (adrenaline) and recovery processes keep your heart rate up for several hours after training. If your RHR is elevated, your body could be in a state of overtraining due to too much training and too little recovery.