Stand in front of a wall with your knees slightly flexed. Place your hands on the wall. Increase the height of the arch by doing an inversion and actively attempt to approximate the head of the first metatarsal toward the heel without flexing the toes. Keep the pressure on the metacarpal head without clinching on the ground with the toes.
Hold the position for a count of 10 and try to maintain the arch as steady as possible. following the 10 seconds count, slowly lower the arch back to the relaxed state under control. Repeat.