Plantar fasciitis is the most common cause of heel pain in runners, eventually affecting 10 percent of the running community. While running, the plantar fascia works with the Achilles tendon to store and return energy. Because of its powerful attachment to the base of the toe, the plantar fascia stabilizes the inner forefoot as forces peak during pushoff. Unlike bone spurs and stress fractures of the heel, plantar fasciitis tends to produce pain during the pushoff phase while running, not during initial contact. A simple way to tell if you have plantar fasciitis versus a heel spur/stress fracture is to walk on your toes: heel spurs and heel stress fractures feel better while you walk on your toes, while plantar fasciitis typically produces more discomfort when you shift your weight onto your toes.
Currently no single factor has been reliably identified as contributing to the development of plantar fasciitis. The two risk factors with the most support from current research. Decreased ankle dorsiflexion. Increased Body Mass Index (BMI) in non-athletic populations. These factors are related in that both lead to increased strain on the arch, both lead to increased compression on the heel. When dorsiflexion range of motion (ankle flexibility) is lacking, the body compensates by increasing movement of the arch. In this way, decreased ankle dorsiflexion influences pronation and places strain on the underside of the foot. Similarly, having a high BMI causes strain because it places a load on the foot that may be in excess of what the foot can support. As mentioned earlier, overpronation is thought to be a contributing factor, but studies on this have so far produced mixed results. The second way these factors relate to each other is in the way people stand. A lack of ankle flexibility and a high BMI can both cause increased pressure on the heel in standing. Keeping weight on the heels causes compression under the heel. But it also means the muscles and ligaments in the arch are not being used to balance your body weight. Lack of use, I suspect, is a greater danger than overuse. Looking beyond these potential contributors to heel pain though, there is one major factor that overshadows them all-the way footwear alters the normal function of the foot.
Patients with plantar fasciitis typically experience pain underneath the heel and along the inner sole of the foot. In less severe cases, patients may only experience an ache or stiffness in the plantar fascia or heel that increases with rest (typically at night or first thing in the morning) following activities which place stress on the plantar fascia. These activities typically include standing, walking or running excessively (especially up hills, on uneven surfaces or in poor footwear such as thongs), jumping, hopping and general weight bearing activity. The pain associated with this condition may also warm up with activity in the initial stages of injury. As the condition progresses, patients may experience symptoms that increase during sport or activity, affecting performance. In severe cases, patients may walk with a limp or be unable to weight bear on the affected leg. Patients with this condition may also experience swelling, tenderness on firmly touching the plantar fascia (often on a specific spot on the inner aspect of the heel) and sometimes pain on performing a plantar fascia stretch.
Your doctor may look at your feet and watch the way you stand, walk and exercise. He can also ask you questions about your health history, including illnesses and injuries that you had in your past. The symptoms you have such as the pain location or when does your foot hurts most. Your activity routine such as your job, exercise habits and physical activities preformed. Your doctor may decide to use an X-ray of your foot to detect bones problems. MRI or ultrasound can also be used as further investigation of the foot condition.
Non Surgical Treatment
A doctor may prescribe anti-inflammatory medication such as ibuprofen to help reduce pain and inflammation. Electrotherapy such as ultrasound or laser may also help with symptoms. An X-ray may be taken to see if there is any bone growth or calcification, known as a heel spur but this is not necessarily a cause of pain. Deep tissue sports massage techniques can reduce the tension in and stretch the plantar fascia and the calf muscles. Extracorporeal shock wave therapy has been known to be successful and a corticosteroid injection is also an option.
More invasive procedures to treat plantar fasciitis are usually sought only after other treatment has failed to produce favorable results. Corticosteroid injections deliver medicine into the injured fascia to reduce pain. However, this treatment may weaken the plantar fascia and result in further damage. In addition, extracorporeal shock wave therapy (ESWT) is a treatment where sound waves are sent through the damaged tissue in order to stimulate the damaged tissue and encourage healing. This method is relatively new in treating plantar fasciitis and your doctor will be able to tell you if it is the right method for you. Lastly, surgery is the last option for those suffering from chronic or severe plantar fasciitis.
More than with most sports injuries, a little bit of prevention can go a long way toward keeping you free from plantar fasciitis. Here are some tips to follow. Wear supportive shoes that fit you well. When your shoes start to show wear and can no longer give your feet the support they need, it's time to get a new pair. Runners should stop using their old shoes after about 500 miles of use. Have a trained professional at a specialty running store help you find the right pair for your foot type, and then keep your shoes tied and snug when you wear them. Stay in good shape. By keeping your weight in check, you'll reduce the amount of stress on your feet. Stretch your calves and feet before you exercise or play a sport. Ask an athletic trainer or sports medicine specialist to show you some dynamic stretching exercises. Start any new activity or exercise slowly and increase the duration and intensity of the activity gradually. Don't go out and try to run 10 miles the first time you go for a jog. Build up to that level of exercise gradually. Talk to your doctor about getting heel pads, custom shoe inserts, or orthotics to put in your shoes. Foot supports can help cushion your feet and distribute your weight more evenly. This is especially true for people with high arches or flat feet. Your doctor will be able to tell you if shoe inserts and supports might lower your chances of heel injury.