what muscles do you use  when you go up on tippy toes
The muscles that make up your calf -- including the gastrocnemius and soleus muscles -- are responsible for plantar flexion of the foot, or movement of the foot away from your shin. When you rise onto the balls of your feet, your calves contract to lift your heels off the floor. Walking on your toes takes it a step further -- literally. As you walk with your heels lifted, your calves remain active, helping you stay upright as they propel you across the floor.