Buried deep in the recesses of the in flight magazine, somewhere between the movie grid and the duty-free opportunities, hides a warning that staying still in an airplane seat for a prolonged time can cause blood clots. While the magazine recommends moving around the cabin and stretching, the flight attendants tend to want to keep you in your seat.
Blood does wonderful things like carrying oxygen, cleaning waste products and delivering cells and chemicals to fight infection. But mess up its environment and blood can cause all sorts of problems. Blood cells get pushed by the heart to the far recesses of the body, but return from the fingers, toes, arms and legs in veins that are milked by the routine contractions of the muscles that surround them. As you walk, blood gets pushed back to the heart; as you type, the muscles of your fingers and hands do the work to get the blood back.
What is Plantar Fasciitis?
Plantar Fasciitis is a painful condition caused by overuse of the plantar fascia or arch tendon of the foot. The Plantar Fascia is a broad, thick band of tissue that runs from under the heel to the front of the foot. Plantar fasciitis can also be known as a heel spur although they are not strictly the same. A heel spur is a bony growth that occurs at the attachment of the plantar fascia to the heel bone (calcaneus). A heel spur can be present (through repetitive pulling of the plantar fascia) on a foot with no symptoms at all and a painful heel does not always have a heel spur present.
Plantar fasciitis is traditionally thought to be an inflammatory condition. This is now believed to be incorrect due to the absence of inflammatory cells within the fascia. The cause of pain and dysfunction is now thought to be degeneration of the collagen fibres close to the attachment to the calcaneus (heel bone).