What is the Flexor Digitorum Brevis?
The flexor digitorum brevis is a small but important muscle located on the bottom of your foot. It sits in the middle of the sole, underneath the thick band of tissue called the plantar fascia, and it runs from the heel area toward your toes. Its main job is to help bend the four smaller toes, meaning the second through the fifth toes, at the first toe joints. That bending action matters more than most people realize because it helps your foot grip the ground when you walk, run, change direction, or stabilize yourself during standing exercises.