This drill exercises the spring of the foot in many directions as well as all floors of the body.
excerpt from the book, ‘How I Got My Wiggle Back’, page 169
Figure 8 Runs
In a 16-foot, figure 8 circle, walk before gradually increasing speed, angling your body inside the circle as you do so.
Tighten the circle to 12 feet or even six and try to maintain speed.
This drill can be performed shod or barefoot.