This is a self-mobilization for the subtalar joint! The subtalar joint is formed where your heel bone, or the calcaneus, meets the talus, which is the ankle bone between your heel and your shin. The subtalar joint allows for us to move our heel out (eversion) and in (inversion). Inversion and eversion of the ankle are KEY for normal walking and running. With foot and ankle injuries, we often see the subtalar joint mobility is limited. This is a friendly self-mobilization technique you can try to