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Daniel Lieberman, PhD: What we can Learn about Running from Barefoot Running

Daniel Lieberman at the Mass General Orthopaedic Surgery Grand Rounds Barefoot RunningWhat we can Learn about Running from Barefoot Running
Daniel E Lieberman, PhD
Department of Human Evolutionary Biology
Harvard University, Cambridge, MA
Grand Rounds presented on March 15, 2012 at the O’Keefe Auditorium, Massachusetts General Hospital, Boston, MA


Foot and Toe Extension

For most of the day, our feet are bound within stiff shoes and many of the soft tissues within the feet are infrequently used. This is a simple yet very effective exercise to stretch the heel, the plantar fascia and the toes.

If you have heel pain, perform this stretch as you wakeup and place your feet on the floor. This can also be performed while sitting in the office or on the couch.

  • Sit on a chair and place your ankle over the opposite knee.
  • Grip toes and gently pull them back towards the knee, while holding the ankle to prevent it from moving.
  • Feel the stretch in the sole of the foot all the way to the heel.
  • Hold the stretch for 30 seconds.
  • Repeat three times for each foot.

From our Archives: Try these exercises


Heel and Achilles Tendon Stretch

A warm-up exercise to perform before running or participating in sports. This stretches the Achilles tendon as well as calf muscles. If you have heel pain (plantar fasciitis), this stretch may help alleviate the pain. You don’t need to go to a health club or gym to do this exercise, it can be performed while sitting in your office or waiting in the coffee line, or even during a walk in the park.

Heel and Achilles Tendon Stretch

heel achilles tendon stretch, Meg Vitter

  • When out for a walk, find a wall to lean against. Even a tree will do.
  • Stand an arms length from the wall.
  • Place the leg to be stretched about 12-18 inches behind you.
  • Keep your toes pointed forward and slightly inward.
  • Bend your arms and gradually lean towards the wall.
  • Make sure your leg is straight and the heel of your back leg is pressed to the floor.
  • Feel the stretch in the calf and heel of the back leg.
  • Hold this position for 30 seconds and return to starting position.
  • Repeat three times for each leg.

Stretches demonstrated by Meg Vitter of Boston, MA.


From our Archives: Try these simple exercises at home


Treating Heel Pain or Plantar Fasciitis

What you can do to reduce heel pain.

Heel Pain Can Be Debilitating:
“Getting out of bed each morning was painful,” recalls a patient of her yearlong experience with heel pain. “As I place my foot on the floor, I could feel a sharp pain in my heel and could only shuffle about the room. It would loosen up after a few minutes, but my foot would continue to hurt as I went through the day.”

Heel pain with the first steps getting out of bed in the morning, or when standing from a seated position, are the most characteristic symptoms of plantar fasciitis (fashee-eye-tiss). Pain can also occur with prolonged standing and walking. The sharp pain is usually on the bottom inside part of the heel. While it most often occurs in only one foot, it can affect both feet.

Plantar Fasciitis Causes Heel Pain:
Plantar Fascia Anatomy

The plantar fascia is a tough, fibrous tissue band running under the soles of your feet, and connects the heel bone (calcaneus) to the base of the toes. It also helps support the arch of the foot in its role as a shock absorber. An injury or continuous irritation of this tissue causes plantar fasciitis and the resulting heel pain.

Multiple factors likely cause plantar fasciitis. It tends to affect people between 40 and 70 years of age, more likely in women, people who are overweight, or have jobs that require a lot of walking or standing on hard surfaces. Runners may be at a higher risk. People with flat feet or high arches are also more prone to plantar fasciitis.

Treatment Options:
The following self care measures may help reduce symptoms.

  • Stop all impact sports and rest the foot.
  • Stretching the plantar fascia and Achilles tendon is proven to be effective in reducing symptoms. (see some effective exercises at the end of this post)
  • Use shoes with better heel cushioning, or include a heel cup for pain relief.
  • Applying ice to the heel is very effective. Freeze a plastic bottle of water and roll your foot over it.
  • Limited use of nonsteroidal anti-inflammatory medications (e.g. ibuprofen or naproxen) is helpful.
  • Different types of day or night wear splints keep your plantar fascia stretched, and relieve pain. (see below)

Day Splint
Day wear splints can be worn with regular shoes. They keep the heel stretched and provide pain relief throughout the day.

Night Splint
Night splint worn to bed is effective in keeping the plantar fascia stretched while sleeping and can prevent early morning heel pain.

In the vast majority, plantar fasciitis will resolve itself within three to six months, but in some patients it can take a year or more. When symptoms fail to improve after 4 to 6 weeks of home treatment, see your doctor or foot specialist.

If heel pain is accompanied by unusual symptoms such as back pain, burning in the foot, or recent trauma, see a specialist. In case of severe and persistent pain that has not responded to conservative treatments, your doctor may prescribe a removable walking cast. This will keep your foot immobile for a few weeks, to allow it to rest and heal. Other treatments include ultrasound therapy directed at the area of heel pain, or even cortisone injections.

Surgery As Last Resort:
Only a tiny percentage of people undergo surgery, which includes detaching the plantar fascia from the heel bone. “Surgery should be the last resort when all other treatments have failed, and the pain remains severe for over a year,” insists Dr. Richard de Asla, Co-Director of the Foot and Ankle Service at the Massachusetts General Hospital and Instructor of Orthopaedic Surgery at Harvard Medical School, Boston, MA.

“We rarely operate on this condition because in most patients the pain resolves on its own with time. Furthermore, the surgical success rate is only about 70% with the potential for other complications,” reminds Dr. de Asla.



Exercises to treat heel pain: