Mobilizing the Ankle . Here we are using an Activator to help mobilize the Talus . 🔺The talus is the bone that makes up the lower part of the ankle joint.Together, the talus and calcaneus form the subtalar joint. 🔺The talus is the main connector between the foot and leg, helping to transfer weight and pressure forces across the ankle joint. It is largely covered by articular cartilage, the white slippery material that covers all joint surfaces. This cartilage allows the talus to move smoothly