ACSM Cardiovascular Fitness 2

Question 1

Which principle best explains why a client's resting heart rate decreases after 12 weeks of aerobic training?

Accepted Answer

Increased stroke volume and cardiac efficiency

Answer

Aerobic training increases stroke volume, allowing the heart to pump adequate blood with fewer beats per minute at rest.

Question 2

A 45-year-old client has a VO2max of 32 mL/kg/min. According to ACSM, how does this compare to age-matched norms for men?

Accepted Answer

Poor

Answer

For a 45-year-old male, a VO2max of 32 mL/kg/min falls in the poor category according to ACSM fitness classification norms.

Question 3

During a maximal graded exercise test, which physiological event signals the ventilatory threshold (VT1)?

Accepted Answer

A nonlinear increase in ventilation relative to VO2

Answer

VT1 is identified by a disproportionate rise in ventilation relative to oxygen uptake, reflecting the onset of metabolic acidosis buffering.

Question 4

Which ergometer provides the most accurate VO2 estimation for obese individuals during submaximal testing?

Accepted Answer

Leg cycle ergometer

Answer

The cycle ergometer minimizes body weight impact and allows accurate workload control, making VO2 estimation more reliable in obese individuals.

Question 5

What is the primary hemodynamic reason that systolic blood pressure rises progressively during dynamic aerobic exercise?

Accepted Answer

Increased cardiac output driven by rising heart rate and stroke volume

Answer

Cardiac output rises during aerobic exercise due to increases in both heart rate and stroke volume, driving systolic blood pressure upward.

ACSM Practice Test