Yoga starts off on the right foot (literally and metaphorically) as you don’t wear shoes. It also has a 101 balancing poses to strengthen the lower leg, work the core and also improve proprioception – your body’s awareness of the position of your feet in space; a useful sense to hone particularly for rock-hopping trial runners.
But balances don’t have to be complicated. To keep it really simple just stand on one leg each time you brush your teeth. If it gets too easy close your eyes.