A key component of almost any group exercise class is aerobic exercise; over the long haul, the body undergoes many positive changes in response to cardiovascular exercise. These long-term changes include:
Explanation
Answer: C - Long-term adaptations in response to cardiovascular training include decreased heart rate both during submaximal exercise and at rest, increased stroke volume at rest and during exercise, increased cardiac output, increased blood volume, increased heart size (especially the left ventricle), increased capillary density, and an increased number of mitochondria. And while some elements of cardiovascular fitness are trainable, it is impossible to deny the powerful effect of genetics.
