Featured Research

from universities, journals, and other organizations

Avoiding Carpal Tunnel Syndrome

Date:
March 12, 2007
Source:
Human Factors and Ergonomics Society
Summary:
Researchers have conducted the first study that systematically identifies how one contributor to carpal tunnel syndrome -- carpal tunnel pressure -- can be examined in detail to establish limits on how much a wrist can be flexed before nerve damage sets in.

A group of human factors/ergonomics researchers have conducted the first study that systematically identifies how one contributor to carpal tunnel syndrome -- carpal tunnel pressure -- can be examined in detail to establish limits on how much a wrist can be flexed before nerve damage sets in.

Related Articles


In work involving the hands, whether using a computer or a hammer, the wrist is a vulnerable spot. Repeated or sustained bending and flexing can lead to carpal tunnel syndrome (CTS).

A group of human factors/ergonomics (HF/E) researchers from the University of California at San Francisco and McMaster University in Ontario, Canada, have conducted the first study that systematically identifies how one contributor to CTS -- carpal tunnel pressure -- can be examined in detail to establish limits on how much a wrist can be flexed before nerve damage sets in.

The researchers believe their findings could be used to create simple guidelines to help workers avoid wrist postures that are likely to cause nerve trauma. The findings from their study appear in a paper in the February issue of Human Factors: The Journal of the Human Factors and Ergonomics Society.

The research team studied the pressure that is placed on the nerve in the carpal tunnel in various wrist postures in 37 healthy men and women between the ages of 22 and 50. Wrist postures that are not neutral (that is, bent or flexed) cause increased pressure on the nerve. The researchers concluded that when sustained pressure on the carpal tunnel reaches 30 mmHG, injury is likely to occur.

In order to keep pressure below 30 mmHG, it is recommended that sustained wrist extension (bending the hand back) should not exceed 32.7 degrees, wrist flexion (bending the wrist toward the palm) should not exceed 48.6 degrees, ulnar deviation (sideways toward the small finger) should not exceed 14.5 degrees, and radial deviation (sideways toward the thumb) should not exceed 21.8 degrees.

The researchers believe that a set of guidelines could be developed from their data -- guidelines that could, if applied by engineers and designers during the design of work and tools, protect workers. Such guidelines could also be used to identify tasks that may put workers at risk for developing or aggravating CTS.


Story Source:

The above story is based on materials provided by Human Factors and Ergonomics Society. Note: Materials may be edited for content and length.


Cite This Page:

Human Factors and Ergonomics Society. "Avoiding Carpal Tunnel Syndrome." ScienceDaily. ScienceDaily, 12 March 2007. <www.sciencedaily.com/releases/2007/02/070227105435.htm>.
Human Factors and Ergonomics Society. (2007, March 12). Avoiding Carpal Tunnel Syndrome. ScienceDaily. Retrieved February 28, 2015 from www.sciencedaily.com/releases/2007/02/070227105435.htm
Human Factors and Ergonomics Society. "Avoiding Carpal Tunnel Syndrome." ScienceDaily. www.sciencedaily.com/releases/2007/02/070227105435.htm (accessed February 28, 2015).

Share This


More From ScienceDaily



More Health & Medicine News

Saturday, February 28, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Could a $34 Smartphone Device Improve HIV Diagnosis in Africa?

Could a $34 Smartphone Device Improve HIV Diagnosis in Africa?

Reuters - Innovations Video Online (Feb. 27, 2015) A dongle that plugs into a Smartphone mimics a lab-based blood test for HIV and syphilis and can detect the diseases in 15 minutes, say researchers. Tara Cleary reports. Video provided by Reuters
Powered by NewsLook.com
Doctor Says Head Transplants Possible Within Two Years

Doctor Says Head Transplants Possible Within Two Years

Buzz60 (Feb. 27, 2015) An Italian doctor is saying he could stick someone&apos;s head onto someone else&apos;s body. Patrick Jones (@Patrick_E_Jones) reports. Video provided by Buzz60
Powered by NewsLook.com
How Your Dentist Could Help Screen You For Diabetes

How Your Dentist Could Help Screen You For Diabetes

Newsy (Feb. 27, 2015) A new study from researchers at New York University suggests dentists could soon use blood samples taken from patients&apos; mouths to test for diabetes. Video provided by Newsy
Powered by NewsLook.com
The Best Tips to Makeover Your Health

The Best Tips to Makeover Your Health

Buzz60 (Feb. 27, 2015) If you&apos;re looking to boost your health this season, there are a few quick and easy steps to prompt you for success. Krystin Goodwin (@Krystingoodwin) has the best tips to give your health a makeover this spring! Video provided by Buzz60
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins