Final answer:
Aerobic exercise training generally results in improved cardiovascular endurance, while resistance exercise training focuses on increasing muscle size and strength.
Step-by-step explanation:
Aerobic exercise training generally results in improved cardiovascular endurance.
Aerobic exercise uses a high percentage of slow-twitch muscle fibers, which have more capillaries, mitochondria, and myoglobin to carry oxygen and sustain aerobic activity for longer periods of time.
In contrast, resistance exercise training primarily focuses on increasing muscle size and strength.