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Plantar Fasciitis

Written by Tele Demetrious

Updated:

(Also known as Heel Pain, Heel Spurs, Painful Heel Syndrome)

What is plantar fasciitis?

Plantar fasciitis is a condition characterised by damage and inflammation to the plantar fascia (i.e. the connective tissue on the sole of the foot forming the inner arch – figure 1). This usually occurs at the attachment of the plantar fascia to the heel bone. Plantar fasciitis is the most common cause of heel pain seen in clinical practice.

Relevant Anatomy for Plantar Fasciitis
Figure 1 – Relevant Anatomy for Plantar Fasciitis

During walking or running, tension is placed through the plantar fascia. When this tension is excessive (often due to poor foot biomechanics such as flat feet – figure 2) or if it is too repetitive or forceful, damage to the plantar fascia can occur. Plantar fasciitis is a condition where there is damage to the plantar fascia with subsequent inflammation and degeneration. This may occur traumatically due to a high force going through the plantar fascia beyond what it can withstand or, more commonly, due to gradual wear and tear associated with overuse. Occasionally, a heel spur may develop in association with plantar fasciitis.

Pronated Feet
Figure 2 – Pronated Feet (Flat Feet)

Causes of plantar fasciitis

Plantar fasciitis most commonly occurs due to repetitive or prolonged activities placing strain on the plantar fascia. It is often seen in runners, or dancers and gymnasts who perform regular activities involving end of range foot and ankle movements. It may also occur in patients who walk excessively, especially up hills or on uneven surfaces. Older patients who spend a lot of time on their feet may also develop the condition. Plantar fasciitis frequently occurs in association with calf muscle tightness, inappropriate footwear, or biomechanical abnormalities, such as excessive pronation (flat feet – figure 2) or supination (high arches). Occasionally the condition may occur suddenly due to a high force going through the plantar fascia beyond what it can withstand. This may be due to activities such as a sudden acceleration or a forceful jump.

Signs and symptoms of plantar fasciitis

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.

Diagnosis of plantar fasciitis

A thorough subjective and objective examination from a physiotherapist is usually sufficient to diagnose plantar fasciitis. Occasionally, further investigations such as an X-ray, ultrasound or MRI may be required to assist with diagnosis and assess the severity of the condition.

Prognosis of plantar fasciitis

Most patients with this condition heal well with appropriate physiotherapy. Minor cases of plantar fasciitis that have not been present for long can usually recover within a few weeks. In patients who have had their condition for a long period of time, recovery can be a lengthy process and may take a number of months. Early physiotherapy treatment is therefore vital to hasten recovery.

Treatment for plantar fasciitis

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Contributing factors to the development of plantar fasciitis

There are several factors which can predispose patients to developing plantar fasciitis. These need to be assessed and corrected with direction from a physiotherapist. Some of these factors include:

Physiotherapy for plantar fasciitis

Physiotherapy treatment for patients with this condition is vital to hasten the healing process, ensure an optimal outcome and reduce the likelihood of recurrence. Treatment may comprise:

Other intervention for plantar fasciitis

Despite appropriate physiotherapy management, some patients with this condition do not improve. When this occurs the treating physiotherapist or doctor will advise on the best course of management. This may include further investigations (such as X-rays, Ultrasound, MRI scan), pharmaceutical intervention, corticosteroid injection, autologous blood injection or referral to appropriate medical authorities who can advise on any intervention that may be appropriate to improve the condition. A review with a podiatrist may also be required for prescription of orthotics to improve foot posture and function. In very rare chronic cases surgical intervention may be considered.

Exercises for plantar fasciitis

The following exercises are commonly prescribed to patients with this condition. You should discuss the suitability of these exercises with your physiotherapist prior to beginning them. Generally, they should be performed 2 – 3 times daily and only provided they do not cause or increase symptoms.

Your physiotherapist can advise when it is appropriate to begin the initial exercises and eventually progress to the intermediate and advanced exercises. As a general rule, addition of exercises or progression to more advanced exercises should take place provided there is no increase in symptoms.

Initial Exercises

Calf Stretch with Towel

Begin this stretch in long sitting with your leg to be stretched in front of you. Your knee and back should be straight and a towel or rigid band placed around your foot as demonstrated (figure 3). Using your foot, ankle and the towel, bring your toes towards your head until you feel a stretch in the back of your calf, Achilles tendon, plantar fascia or leg. Hold for 5 seconds and repeat 10 times at a mild to moderate stretch provided the exercise is pain free.

Exercises for Plantar Fasciitis - Calf Stretch with Towel
Figure 3 – Calf Stretch with Towel

Resistance Band Calf Strengthening

Begin this exercise with a resistance band around your foot as demonstrated and your foot and ankle held up towards your head (figure 4). Slowly move your foot and ankle down against the resistance band as far as possible and comfortable without pain, tightening your calf muscle. Very slowly return back to the starting position. Repeat 10 – 20 times provided the exercise is pain free.

Exercises for Plantar Fasciitis - Resistance Band Calf Strengthening
Figure 4 – Resistance Band Calf Strengthening (left calf)

Intermediate Exercises

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Advanced Exercises

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Rehabilitation Protocol for Plantar Fasciitis

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Physiotherapy products for plantar fasciitis

Some commonly recommended products by physiotherapists for patients with this condition include:

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