Computers can be a real pain in the neck

Date: January 5, 2019

Source: San Francisco State University

Summary: Many people slouch or strain their necks while working at the computer. A new study shows how jutting the head forward to read more closely compresses the neck and leads to neck and shoulder problems.

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It’s a posture so common we almost don’t notice it anymore: someone sitting at a computer jutting his or her head forward to look more closely at the screen. But this seemingly harmless position compresses the neck and can lead to fatigue, headaches, poor concentration, increased muscle tension and even injury to the vertebrae over time. It can even limit the ability to turn your head.

“When your posture is tall and erect, the muscles of your back can easily support the weight of your head and neck — as much as 12 pounds,” explains San Francisco State University Professor of Holistic Health Erik Peper. “But when your head juts forward at a 45 degree angle, your neck acts like a fulcrum, like a long lever lifting a heavy object. Now the muscle weight of your head and neck is the equivalent of about 45 pounds. It is not surprising people get stiff necks and shoulder and back pain.”

Peper, Associate Professor of Health Education Richard Harvey and their colleagues, including two student researchers, tested the effects of head and neck position in a recent study published in the journal Biofeedback. First they asked 87 students to sit upright with their heads properly aligned on their necks and asked them to turn their heads. Then the students were asked to “scrunch” their necks and jut their heads forward. Ninety-two percent reported being able to turn their heads much farther when not scrunching. In the second test, 125 students scrunched their necks for 30 seconds. Afterwards, 98 percent reported some level of pain in their head, neck or eyes.

The researchers also monitored 12 students with electromyography equipment and found that trapezius muscle tension increased in the scrunched, head forward position.

So if you suffer from headaches or neck and backaches from computer work, check your posture and make sure your head is aligned on top of your neck, as if held by an invisible thread from the ceiling. “You can do something about this poor posture very quickly,” said Peper. To increase body awareness, Peper advises purposefully replicating the head-forward/neck scrunched position. “You can exaggerate the position and experience the symptoms. Then when you find yourself doing it, you can become aware and stop.”

Other solutions he offers include increasing the font on your computer screen, wearing computer reading glasses or placing your computer on a stand at eye level, all to make the screen easier to read without strain.

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Article source:-

Material provided by San Francisco State University. Original written by Lisa Owens Viani.

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