"Rebound Exercise is the most efficient, effective form of exercise yet devised by man." said the "father of rebounding" A. Carter in 1979.

 

NASA confirmed this in their study published in 1980 in the Journal of Applied Physiology:

NASA says, "...for similar levels of heart rate and oxygen consumption, the magnitude of the biomechanical stimuli is greater with jumping on a trampoline than with running, a finding that might help identify acceleration parameters needed for the design of remedial procedures to avert deconditioning in persons exposed to weightlessness. “

Find below the original "NASA" study published 1980 in the Journal of Applied Physiology:

 

 

The Secret behind Rebounding

 

When rebounding, three natural forces are at work: gravity, acceleration and deceleration. In the up and down movement of bouncing, your body is subjected to these three forces and each time you bounce into the mat (at its deepest point) your body comes into a G-force (Gravity force) of two to three.

 

As a consequence, litterally each cell of your body experiences an impact that is double or triple stronger than normally. It is as if you would weight double or triple as much as you do. The body however is exposed to this impact only for a fraction of a second which strenghtens the body but does not fatigue it. During the  movement up to the highest point of your bounce, you come to nearly weightlessness and your body can relax completely.

 

 

Now you cannot say any longer "I have no time..."