Navigation Links
'Delayed Reactions' May Outlast Other Concussion Effects

SATURDAY, March 10 (HealthDay News) -- In people with a concussion, slowed physical responses may last long after typical head injury symptoms disappear, researchers have found.

A test that measures the brain's link to physical function could help improve treatment for people with a concussion, according to Scott Livingston of the University of Kentucky, who led the study as a graduate student at the University of Virginia.

Concussions are currently diagnosed and monitored based on patients' symptoms and computerized tests that measure thinking skills. Self-reported symptoms of concussion usually include headache, confusion, difficulty concentrating and memory problems. The computer tests measure factors such as attention, verbal skills and learning. The researchers explained that this type of monitoring usually shows that people with a concussion return to normal function after about 10 days.

In conducting the new study, however, the investigators also used a test called motor-evoked potentials (MEPs). The test delivers a pulse of magnetic stimulation to the brain while the person has electrodes attached to their foot or hand. This test allows researchers to measure the amount of time it takes for a person's limb to respond to the signals in their brain.

For the study, the researchers recruited 18 college athletes, half of whom had experienced a concussion within the previous 24 hours. The students were matched for age, gender, sport, player position and whether they ever had a concussion before. Livingston's team also took into account whether the athletes had a learning disability.

Over the course of 10 days, the study authors found that based on self-reported symptoms and standard computerized tests, post-concussion symptoms were more frequent and greater in severity within the first four days. Most students appeared to return to normal or close to normal function after 10 days.

The researchers found, however, that MEP tests revealed delays in physical response time -- even as athletes' concussion symptoms decreased and their thinking skills improved.

The findings, published in the February issue of the Journal of Clinical Neurophysiology, could have significant implications for athletes because their physical reaction time may not improve along with their self-reported concussion symptoms and other brain functions.

"Further investigation of MEPs in concussed athletes is needed, especially to assess how long the disturbances in physiological functioning continue after those initial 10 days post-injury," Livingston said in a University of Kentucky news release. "But in the meantime, sports medicine personnel caring for concussed athletes should be cautious about relying solely on self-reported symptoms and neurocognitive test performances when making return-to-play decisions."

More information

The U.S. Centers for Disease Control and Prevention has more about concussions.

-- Mary Elizabeth Dallas

SOURCE: University of Kentucky, news release, Feb. 29, 2012

Copyright©2010 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Pain Relief Often Delayed for Cancer Patients
2. Delayed retirement among Americans may bolster future of Social Security and Medicare, study finds
3. $18.5 Million New Jersey Medical Malpractice Birth Injury Verdict Due To Cerebral Palsy Caused By A Delayed C-Section
4. New study confirms positive effects of delayed school start times
5. For HIV-positive patients, delayed treatment a costly decision
6. Denosumab delayed time to first skeletal-related side effect
7. Study shows delayed-enhancement MRI may predict, prevent strokes
8. Common insecticide used in homes associated with delayed mental development of young children
9. Taking Chemo Drug Continuously Delayed Lung Cancers Return
10. Delayed access to tertiary care associated with higher death rate from type of pulmonary fibrosis
11. 40-year follow-up on marshmallow test points to biological basis for delayed gratification
Post Your Comments:
Related Image:
'Delayed Reactions' May Outlast Other Concussion Effects
(Date:12/1/2015)... NY (PRWEB) , ... December 01, 2015 , ... ... Spine, Sports & Orthopedic Rehabilitation P.C.went to NASDAQ to educate the personnel on ... specific traction therapy for the spine, a nonsurgical procedure. The benefits come from ...
(Date:12/1/2015)... ... December 01, 2015 , ... World Patent Marketing ... Jar, a container patent that allows for easier packing and organizing of items into ... worth $90 billion," says Scott Cooper, CEO and Creative Director of World Patent Marketing ...
(Date:12/1/2015)... ... ... Royal River Natural Foods — a locally-owned, independent natural health store in Freeport, ... supplement creatine, along with resistance training for a year, had more new bone at ... is part of the December 2015 issue of Natural Insights for Well Being®, which ...
(Date:12/1/2015)... Angeles, CA (PRWEB) , ... December 01, 2015 , ... ... coalition of obesity groups has filed a discrimination claim against the U.S. Department of ... coverage in their Affordable Care Act (ACA) plans are breaking the clause in the ...
(Date:12/1/2015)... , ... December 01, 2015 , ... Califia Farms ... announced that its iconic bottle has won top honors in Beverage World Magazine’s Global ... Company also announced that it has been selected as a 2015 U.S.A. Taste Champion ...
Breaking Medicine News(10 mins):
(Date:12/1/2015)... Dec. 1, 2015 WellStar Health System has ... Texas -based Tenet Healthcare,s five metro ... approved the strategic move following the conclusion of the ... clinical care models and patient safety programs that have ... to new communities. --> ...
(Date:12/1/2015)... 2015  Eyeon Therapeutics has received a Notice ... based on a charged hydrophilic polymer developed at ... product has been shown to be safe and ... Mark Mitchnick , MD, CEO states, "This second ... polymers in conjunction with a therapeutic agent.  Nanoparticles ...
(Date:12/1/2015)... 1, 2015 Pharma Tech Outlook recently conducted ... Clinical Data Management Solution Providers - 2015 .  After ... comprising CEOs, CIOs, VCs, analysts, and the Pharma Tech ... of top 10 clinical data management solution providers (check ... 14 and 36 respectively). --> ...
Breaking Medicine Technology: