Peroneal tendonitis is a common overuse injury that can occur on the outside of the ankle in athlete. The peroneal muscles are responsible for stopping the foot from everting which is a force applied in a lot of sports. Peroneal tendonitis is more common in those with a higher arched foot profile as this foot often wants to supinate or evert, making the muscles work harder. Combine that action with the higher levels of sports and there is an increased risk for peroneal tendonitis. The most common treatment for peroneal tendonitis is to use some sort of foot orthotic or lateral wedging to evert the foot so that the muscles do not have to work so hard. Running with a forefoot strike is thought to increase the load going through the tendons.