CCSP Exercise Physiology & Sports Performance Testing 2

Question 1

During progressive dynamic aerobic exercise, which blood pressure pattern is most characteristic?

Accepted Answer

Systolic pressure rises while diastolic pressure remains stable or decreases slightly

Answer

Both systolic and diastolic pressure rise proportionally throughout exercise

Answer

Diastolic pressure rises significantly while systolic pressure plateaus

Answer

Both systolic and diastolic pressures decrease as exercise becomes more intense

Question 2

Compared to untrained individuals, endurance-trained athletes achieve higher maximal cardiac output primarily due to:

Accepted Answer

Greater stroke volume from cardiac hypertrophy and enhanced ventricular filling

Answer

A higher maximum attainable heart rate during exercise

Answer

Increased peripheral vascular resistance during intense exercise

Answer

Reduced oxygen extraction capacity in working muscles

Question 3

Exercise-induced bronchospasm (EIB) is most commonly triggered by:

Accepted Answer

Inhalation of cold, dry air during high-intensity exercise

Answer

Elevated arterial PCO2 during maximal aerobic effort

Answer

Reduced tidal volume during steady-state exercise

Answer

Decreased respiratory rate at the anaerobic threshold

Question 4

In a healthy trained athlete exercising at sea level, arterial oxygen saturation (SpO2) during maximal effort would most likely:

Accepted Answer

Remain above 95% as pulmonary function is rarely the limiting factor

Answer

Drop below 85% due to increased oxygen extraction by muscles

Answer

Fall to 70–80% due to inadequate pulmonary diffusion capacity

Answer

Rise above 99% due to hyperventilation-driven respiratory alkalosis

Question 5

The primary mechanism by which aerobic endurance training improves VO2 max is:

Accepted Answer

Increasing stroke volume and therefore maximal cardiac output

Answer

Increasing the maximum heart rate achievable during exercise

Answer

Reducing arterial oxygen content through training-induced hemodilution

Answer

Decreasing the oxygen extraction capacity of skeletal muscle

Question 6

During maximal exercise, which mechanism most significantly enhances oxygen release from hemoglobin to working muscles?

Accepted Answer

Rightward shift of the oxyhemoglobin dissociation curve due to acidosis and increased temperature

Answer

Increased arterial pH causing respiratory alkalosis

Answer

Decreased muscle temperature in active tissues

Answer

Reduced 2,3-DPG levels in red blood cells during intense effort

Question 7

A drop in systolic blood pressure during graded exercise testing is clinically significant because it most often indicates:

Accepted Answer

Left ventricular dysfunction or significant myocardial ischemia

Answer

Normal physiological vasodilation in working skeletal muscle

Answer

Deconditioning and reduced baseline cardiovascular fitness

Answer

Exercise-induced bronchospasm reducing cardiac preload