(Thursday, April 28, HealthDay News) - men who are obese and tall face a much higher risk for the development of blood clots potentially fatal, although that in all, the risk remains very low, according to a new study.
Researchers report that supplementary and extra weight inches set appear to increase the risk more to be alone.
"Men tall and obese were more than five times, lean, and short men higher risk", said co-author of the study, Sigrid k. Braekkan, who warns vertically and horizontally gifted to avoid sitting in the same place for too long.
Women also faced at a higher risk if they are obese and large size, but just being tall single does not appear to be a problem, the study found.
Clot formation leading to a condition known as deep vein thrombosis, which may be better known as an affliction that strikes the passengers on long plane flights which do not have many chances to move. The immobilization of the legs can contribute to the condition.
Other causes include injuries and a genetic disease which makes it more likely people of clotting blood. "And there are some people who seem to get blood clots when they have no clear, obvious risk factors," said Dr. Victor Tapson, Director of the Center for pulmonary vascular disease at Duke University.
While clots starts in the leg, they can move to the lung, where they may cause a fatal pulmonary embolism. Thromboembolism is the term used to describe the two conditions, deep vein thrombosis and pulmonary embolism, as a whole.
In the new study, published online April 28 to arteriosclerosis, thrombosis and vascular biology, researchers collected data on 26,714 people from 1994 to 2007, including 461 reports of venous thromboembolism.
Obese and great men - these at least six feet - had more than five times the risk for a blood clot, compared to the men of normal weight shorter than 5 feet 7 inches. The risk was three times higher among women who were obese and at least 5 feet 6 inches and normal weight women shorter than 5 feet 3 inches.
The risk higher for tall people appears to be related to their circulatory system. "The distance for blood return to the heart and lungs is more", said Braekkan. "Since the blood must be pumped to the top against the force of gravity by the calf muscle pump, the more long distance can cause a flow in the legs and, thus, more risk of clotting."
He said that obesity causes pressure in the abdomen that may impair the ability of the calf muscle pump to send blood back into the body.
However, the study found that the risk of developing blood clots remained low, even for large and obese.
But that obese and tall people should do to reduce their risk even more? Until the books can be delivered, the best thing to do is to avoid situations where you are moving not for long periods of time, said Tapson.
Even in the confined space of an aircraft, try to "just move your legs, move your legs, going on top and bottom of your toes and flexing your feet back and forth to keep your stimulated calf muscles," said. It is also a good idea to keep hydrated (and alcohol doesn't help on this front). Some people use elastic socks, although Tapson said that they can be troublesome if they crimp legs.
More information
The U.S. National Heart, Lung and Blood Institute has more information about deep vein thrombosis.
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