#1
Which of the following is NOT a risk factor for cardiovascular disease?
Regular exercise
ExplanationRegular exercise reduces the risk of cardiovascular disease.
#2
What is the main function of the cardiovascular system?
To transport oxygen and nutrients to the body's cells
ExplanationThe cardiovascular system delivers essential substances to body cells.
#3
During aerobic exercise, which of the following systems is primarily activated?
Respiratory system
ExplanationAerobic exercise primarily engages the respiratory system for oxygen intake.
#4
What is the term for the maximum amount of oxygen that an individual can utilize during intense exercise?
VO2 max
ExplanationVO2 max measures maximal oxygen consumption during intense exercise.
#5
What is the recommended duration of moderate-intensity aerobic exercise per week for adults according to most health guidelines?
At least 60 minutes
ExplanationMost health guidelines recommend adults to engage in at least 60 minutes of moderate-intensity aerobic exercise weekly.
#6
Which of the following is NOT a benefit of regular cardiovascular exercise?
Increased blood pressure
ExplanationRegular cardiovascular exercise typically decreases blood pressure.
#7
Which of the following is NOT a component of the FITT principle in exercise prescription?
Tolerance
ExplanationThe FITT principle includes frequency, intensity, time, and type of exercise, but not tolerance.
#8
Which of the following is a potential benefit of high-intensity interval training (HIIT) compared to steady-state cardio?
Greater fat loss
ExplanationHIIT often leads to greater fat loss compared to steady-state cardio due to its metabolic effects.
#9
Which type of cholesterol is considered 'good' for heart health?
HDL cholesterol
ExplanationHDL cholesterol is beneficial for heart health as it removes excess cholesterol from arteries.
#10
What is the term for the resting phase of the cardiac cycle?
Diastole
ExplanationDiastole is the phase when the heart relaxes and refills with blood.
#11
What is the term for the widening of blood vessels in response to increased blood flow?
Vasodilation
ExplanationVasodilation increases blood flow by widening blood vessels.
#12
What is the term for the maximum heart rate an individual can achieve during exercise?
Maximum heart rate
ExplanationMaximum heart rate indicates the highest heart rate achievable during exercise.
#13
What is the term for the volume of blood pumped by the heart per minute?
Cardiac output
ExplanationCardiac output measures the volume of blood pumped by the heart in one minute.
#14
What is the term for the process by which oxygen is transported from the lungs to the body's tissues?
Perfusion
ExplanationPerfusion is the delivery of oxygen from the lungs to body tissues via the bloodstream.