I’m a big fan of minimalist approaches to fitness. Check out this video of "The Patch", an awesome tool for functional and athletic training. Many of the exercises performed here can be mimicked in a playground whenever you find yourself gym-less or in the mood for some fresh air and free movement.
"The Patch"
The athletes in training are the UCR women’s volley ball team. Video courtesy of Catalyst Athletics.
Check out this article from a prominent figure in the triathlon world…
http://www.bikesportmichigan.com/editorials/0000119.shtml