Featured Research

from universities, journals, and other organizations

Stimulating Muscles May Improve Musician's Dystonia

Date:
January 3, 2008
Source:
American Academy of Neurology
Summary:
Therapy that stimulates the hand muscles may help treat the condition called musician's dystonia, a movement disorder that causes muscles spasms in musicians, according to a new study. Musician's dystonia occurs in musicians who have practiced particular complicated movements for years. The muscle spasms are usually painless and generally occur only when playing the instrument.

Therapy that stimulates the hand muscles may help treat the condition called musician's dystonia, a movement disorder that causes muscles spasms in musicians, according to a new study.

Musician's dystonia occurs in musicians who have practiced particular complicated movements for years. The muscle spasms are usually painless and generally occur only when playing the instrument.

For the study, researchers applied low-amplitude vibration to the hand muscles in 24 people: six who had musician's dystonia, six professional musicians with no dystonia, six healthy non-musicians, and six people with writer's cramp, which is another type of dystonia that occurs in people while they write.

Using transcranial magnetic stimulation, the researchers evaluated the reaction in the sensorimotor area of the brain back to the muscle during vibration of a single hand muscle. In healthy people, the vibration of a muscle increases the amount of brain messages back to the muscle and at the same time reduces the amount of messages to muscles that did not receive vibration. In people with musician's dystonia, vibration in any one hand muscle increases the amount of messages to all hand muscles. In writer's cramp, vibration to one muscle has no effect on any muscle.

Now, in an intervention that lasts only 15 minutes, muscle vibration was applied to a thumb muscle, and the participant's attention was either directed on that muscle itself or away from it. The reaction of the brain's sensorimotor areas to the muscles was then tested again using transcranial magnetic stimulation.

"Our hope is that stimulation can retrain how the brain responds," said study author Karin Rosenkranz, MD, with UCL Institute of Neurology in London, United Kingdom.

The study found that the vibration intervention in which subjects had to attend to their thumb muscle tended to restore a more normal pattern in the sensorimotor area of the brain in people with musician's dystonia. This effect was less pronounced in the people with writer's cramp.

"More research is needed to see if prolonged use of stimulation can improve hand motor function," Rosenkranz said. "These results also suggest that the underlying mechanism of the disorder may be different in musician's dystonia and writer's cramp."

The full research article is published in the December 26, 2007, online issue of Neurology®, the medical journal of the American Academy of Neurology.


Story Source:

The above story is based on materials provided by American Academy of Neurology. Note: Materials may be edited for content and length.


Cite This Page:

American Academy of Neurology. "Stimulating Muscles May Improve Musician's Dystonia." ScienceDaily. ScienceDaily, 3 January 2008. <www.sciencedaily.com/releases/2007/12/071226225511.htm>.
American Academy of Neurology. (2008, January 3). Stimulating Muscles May Improve Musician's Dystonia. ScienceDaily. Retrieved July 28, 2014 from www.sciencedaily.com/releases/2007/12/071226225511.htm
American Academy of Neurology. "Stimulating Muscles May Improve Musician's Dystonia." ScienceDaily. www.sciencedaily.com/releases/2007/12/071226225511.htm (accessed July 28, 2014).

Share This




More Health & Medicine News

Monday, July 28, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Trees Could Save More Than 850 Lives Each Year

Trees Could Save More Than 850 Lives Each Year

Newsy (July 27, 2014) — A national study conducted by the USDA Forest Service found that trees collectively save more than 850 lives on an annual basis. Video provided by Newsy
Powered by NewsLook.com
Google's Next Frontier: The Human Body

Google's Next Frontier: The Human Body

Newsy (July 27, 2014) — Google is collecting genetic and molecular information to paint a picture of the perfectly healthy human. Video provided by Newsy
Powered by NewsLook.com
What's To Blame For Worst Ebola Outbreak In History?

What's To Blame For Worst Ebola Outbreak In History?

Newsy (July 27, 2014) — A U.S. doctor has tested positive for the deadly Ebola virus, as the worst-ever outbreak continues to grow. Video provided by Newsy
Powered by NewsLook.com
Losing Sleep Leaves You Vulnerable To 'False Memories'

Losing Sleep Leaves You Vulnerable To 'False Memories'

Newsy (July 27, 2014) — A new study shows sleep deprivation can make it harder for people to remember specific details of an event. Video provided by Newsy
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:
from the past week

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