Monday, November 2, 2009

Here is an article about high heeled shoes, and the effects they have on the alignment and motion of your many joints and limbs.

High-Heeled Shoes - Bad for the Body
Fashion at a High Price
by Terence Vanderheiden, D.P.M.

Wearing high heels can be fashionable and may make you feel taller, but at what price? High heels can cause foot problems while exacerbating foot problems that you already have. Leg and back pain also are common complaints from those who wear high heels.

Posture. A high heel shoe puts your foot in a plantarflexed (foot pointed downward) position, placing an increased amount of pressure on your forefoot. This causes you to adjust the rest of your body to maintain your balance. The lower part of your body leans forward and to compensate for that, the upper part of your body must lean back to keep you balanced. This is not your body's normal standing position.

Gait. When walking, your foot is in a more fixed downward position (plantarflexed) therefore you are not able to push off the ground with as much force. This causes your hip flexor muscles in your legs to work harder to move and pull your body forward. Your knees also stay more bent (flexed) and forward, causing your knee muscles to work harder.

Balance. Walking in high heel shoes is like walking on a balance beam. It takes a lot of balance and just like teetering on a beam, there is not any support in a high heel shoe to catch you if you fall. High heel shoes cause your foot and ankle to move in a supinated (turned outward) position. This position puts you at risk for losing your balance and spraining your ankles.

Back. The normal s-curve shape of the back acts as a shock absorber, reducing reduce stress on the vertebrae. Wearing high heels causes lumbar (low-back) spine flattening and a posterior (backward) displacement of the head and thoracic (mid-back) spine. High heel shoes cause you to lean forward and the body's response to that is to decrease the forward curve of your lower back to help keep you in line. Poor alignment may lead to muscle overuse and back pain.

Hips. The hip flexor muscles are located on the upper front part of your thighs. They are forced to work much harder and longer to help you walk because your feet are held in a downward position (plantarflexed) and have reduced power to move your body forward. If your hip flexor muscles are chronically overused, the muscles can shorten and a contracture can occur. If a contracture occurs, this could lead to flattening of the lumbar (low-back) spine.

Knees. Knee osteoarthritis is twice as common in women. Some of that blame may be due to high heels. The knee stays flexed (bent) and the tibia (shin bone) turns inward (varus) when wearing high heels. This position puts a compressive force on the inside of the knee (medial), a common site of osteoarthritis. If you already have osteoarthritis, it is best to avoid wearing high heel shoes. High heels increase the distance from the floor to the knee and can result in increased knee torque which can also lead to osteoarthritis.

Ankles. High heels limit the motion and power of the ankle joint. The calf muscles (gastrocnemius & soleus) are shortened because of the heel height. The shortened muscles cause them to lose power when trying to push the foot off of the ground. The position of the ankle may also cause a shortening (contraction) of the achilles tendon. This can increase the pull of the achilles tendon where it attaches on the back of your heel bone (calcaneus) and may cause a condition called insertional achilles tendonitis.

Feet. With the foot in a downward position, there is significant increase in the pressure on the bottom (plantar) of the forefoot. The pressure increases as the height of the shoe heel increases. Wearing a 3 1/4 inch heel increases the pressure on the bottom of the forefoot by 76%. The increased pressure may lead to pain or foot deformities such as hammer toes, bunions, bunionettes (tailor's bunions) and neuromas. The downward foot position (plantarflexion) also causes the foot to be more supinated (turned to the outside). This change in foot position changes the line of pull of the achilles tendon and may cause a condition called Haglund's deformity (pump bump).

Skin and Toes. The narrow, pointed toe box that is often found in high heel shoes also causes damage such as corns, callouses and blisters. If you look at a baby or toddler's foot you will see that their toes are spread apart. If you look at an adult's foot, their toes are usually squished together. A lot of times this is due to the footwear that has been worn. If you trace the footbed (part of the shoe where you put your foot) of a high heel shoe on a sheet of paper, and then stand barefoot on that tracing, you will probably have quite a bit of overlap. Does it still seem like a good idea to put your foot inside that shoe?

Save Your Feet. If your car tires are out of alignment, you can only drive so many miles before you are at risk of blowing a tire. The same is true for your body. Things need to be in alignment. It is recommended that you only wear high heels for special occasions and even then only a heel height of 1 1/2 inches. Your feet and body will thank you - and you'll save money on trips to the podiatrist's office.

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