Plantar Fasciitis What is plantar fasciitis? As the biggest culprit for knee pain, plantar fasciitis accounts for a lot of discomfort when the plantar fascia becomes strained or inflamed. Often seen in young people who are often on their feet, or middle-aged people who have worn down their arches, this injury is caused by too much strain placed on the ligaments in the feet. What are the symptoms of plantar fasciitis? If you are dealing with plantar fasciitis, you will notice sharp pain when you stand up after lying down for an extended period of time. Stiffness and discomfort may fade away after beginning to walk a few steps or climb a few stairs. How do we treat plantar fasciitis? Our therapists will work with you to increase function in your legs and improve your range of mobility. By strengthening the muscles in the lower portion of your legs, we help you regain stability and make it easier to step on your foot without feeling intense pain.