Great for the Skater in you. This can be used with or without a Slider Board.
Swiss Ball Oblique Crunch
The Alternating Superman is not only fun but it also challenges you at every moment.
Knees 2 Toes is a great workout that can also be used as a warm up.
The main benefit from doing jumping jacks is that this callisthenic exercise elevates your heart rate, increases oxygen flow and burns calories