Intensity factors: Upright aerobic activities hit the goals the hardest, due to gravity’s effect on blood circulation. The heart has to work harder to return the blood from pooling legs to the heart. This doesn’t happen when cardiovascular exercises are performed in a supine or prone position. Prone is represented in plank and supine is lying with the spine on the ground. Upright activity demands the heart to maintain forceful contractions for as long as you maintain the activity. The more you train aerobically, the greater the benefits will be for your heart’s health and strength even when you are at rest.More
What kind of goals can be achieved by aerobics? (we already assume ‘look like Jane Fonda’ is one of them.)
Increasing the overall cardiac output of your heart
Increasing the size of your heart and ventricles, which will allow for continued elevated cardiac output, not just during exercise, but into the future of your cardiac health.
Fueling cellular respiration processes in the body with fat cells, training them to use more than just carbohydrates as an energy source.
Increased Fat Burning when not engaged in Activity.