HMS, TIP 2020 HSC 15 MC

Which group of physiological adaptations is likely to occur in athletes who have participated in an aerobic training program at sub-maximal levels for 8 weeks?

Increased cardiac output, decreased stroke volume, muscle atrophy
Increased cardiac output, increased lung capacity, muscle hypertrophy
Decreased resting heart rate, increased stroke volume, increased haemoglobin level
Decreased resting heart rate, increased oxygen uptake, decreased haemoglobin level

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\(C\)

Show Worked Solution

C is correct: Aerobic training decreases resting heart rate, increases stroke volume and haemoglobin.

Other Options:

A is incorrect: Stroke volume increases not decreases with aerobic training.
B is incorrect: Aerobic training causes muscle endurance not hypertrophy adaptations.
D is incorrect: Haemoglobin level increases not decreases with aerobic training.