There will be plenty of opportunity to flex those right ankle muscles tomorrow, though... (evo.co.uk)
During «toe - off,» the foot acts like a lever, putting ankle muscles and ligaments under tremendous tension — as much as seven times the body's weight. (discovermagazine.com)
For example, if someone has collapsing arches, then a sensible starting point would be to pursue exercises to enhance the strength of the inner arch and the mobility of the outer ankle muscles — the outer calf and / or peroneus. (acefitness.org)