[youtube]http://www.youtube.com/watch?v=jYCV_tuZlkE[/youtube]
Preparation
1. Find a raised platform
2. Stand straight with your back towards the raised platform and your hands straight on your sides.
Execution
1. Jump backwards on the raised platform. Jump as high as possible. When you land, bend your knees to absorb the impact and stretch out your hands so that they are parallel with the ground.
Return
1. Jump back on the lower ground and come back to your initial position.
Repeat
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