Featured Research

from universities, journals, and other organizations

University Of Pittsburgh Sports Concussion Study First To Show Cumulative Effects Of Multiple Concussions In High School Athletes

Date:
October 29, 2002
Source:
University Of Pittsburgh Medical Center
Summary:
A high school athlete with a history of three or more concussions who sustains a new concussion may be up to nine times more likely to experience common symptoms compared to high school athletes with no history of concussion, according to a University of Pittsburgh study, published in the November issue of the journal Neurosurgery.

PITTSBURGH, Oct. 28, 2002 -– A high school athlete with a history of three or more concussions who sustains a new concussion may be up to nine times more likely to experience common symptoms compared to high school athletes with no history of concussion, according to a University of Pittsburgh study, published in the November issue of the journal Neurosurgery.

Related Articles


“The study is the first to actually demonstrate what have been the commonly assumed cumulative effects of multiple concussions in high school athletes,” according to lead author Michael W. (Micky) Collins, Ph.D., a neuropsychologist and assistant director of the University of Pittsburgh Center for Sports Medicine’s Concussion Program. “The study indicates for the first time in the high school athlete population that prior concussions may indeed lower the threshold for subsequent concussion injury and increase symptom severity in even seemingly mild subsequent concussions,” he said.

“Our findings are significant because high school athletes in contact sports are at high risk for repeated concussions, yet it is a population that has been understudied regarding concussion management,” Dr. Collins said. “Quite often the athlete’s concussion history has weighed heavily in the return-to-play decision process, although this has been based on little scientific data. Our findings highlight the need for more long-term outcome studies in this population.”

Concussion symptoms are not always reported by the athlete and the effects are difficult to objectively measure. Thus, the determination of when it is safe to return an athlete to play is not always straightforward, according to Dr. Collins. Previous research has shown that allowing enough time for the brain to heal and recover before return-to-play is crucial in preventing more severe damage from possible further brain trauma during contact play. Generally, he said, most athletes who sustain an initial concussion can recover completely as long as they are not returned to contact sports too soon.

More than 10 percent of high school athletes participating in contact sports in the United States sustain a concussion each season, according to previous studies. A concussion can occur when the brain is violently rocked back and forth inside the skull due to a blow to the head or upper body. A concussion is a trauma-induced alteration of mental status that may or may not result in loss of consciousness. Other symptoms may include disorientation, confusion, dizziness, amnesia and uncoordinated hand-eye movements.

Dr. Collins’ team investigated 88 high school athletes who sustained concussions during the 2000-2001 school year and were evaluated as patients of the University of Pittsburgh Center for Sports Medicine’s Concussion Program. Sixty athletes with no prior concussion history were compared to 28 athletes with a history of three or more concussions. The two groups were compared in terms of on-the-field presentation of four concussion severity markers following an in-study concussion. The symptom markers measured involved loss of consciousness, anterograde amnesia (loss of memory of events after injury), retrograde amnesia (loss of memory of events before injury), and confusion.

Compared to the group with no concussion history, the group of athletes with three or more concussions were nine times more likely to experience three out of the four on-the-field severity markers – loss of consciousness, anterograde amnesia, and confusion.

Addressing the severity markers specifically: The group with a history of three or more concussions were more than six times more likely to experience loss of consciousness; nearly four times more likely to have anterograde amnesia; and four times more likely to be confused. The odds ratio of retrograde amnesia between the two groups was not significant.

Athletes who participated in the study were from high schools in Pennsylvania, Michigan, Illinois, Oregon and Maine. Among the group with no prior concussion history, 92 percent were males and the average age was 15.8 years. Seventy-eight percent were football players, 8 percent were soccer players, and 5 percent were basketball players. A very small percentage of the group participated in baseball, ice hockey, lacrosse, cheerleading and wrestling, collectively. Among the group with concussion history, 82 percent were males and the average age was 16.1 years. Fifty-four percent played football, 18 percent played soccer, and a very small percentage of the group played basketball, ice hockey, lacrosse, wrestling and volleyball.

Other study authors are: Mark R. Lovell, Ph.D., director of the University of Pittsburgh Center for Sports Medicine’s Concussion Program; Grant L. Iverson, Ph.D., University of British Columbia; Robert Cantu, M.D., Emerson Hospital, Concord, Mass.; Joseph Maroon, M.D., and Melvin Field, M.D., both of the department of neurological surgery, University of Pittsburgh School of Medicine.

The University of Pittsburgh Center for Sports Medicine’s Concussion Program focuses on diagnosis and management of sports-related concussions in athletes of all levels. The program’s internationally-known team of clinicians and researchers are leaders in studying the neurocognitive effects of sports-related concussions and developing better methods of post-concussion evaluation to determine when it is safe for an athlete to return to sports. One method the team has developed is ImPACT (Immediate Post-concussion Assessment and Cognitive Testing). Used worldwide, ImPACT is the first computerized testing system to evaluate the severity of concussions in athletes.

For more information, please access http://www.upmc.edu/sportsmedcenter.


Story Source:

The above story is based on materials provided by University Of Pittsburgh Medical Center. Note: Materials may be edited for content and length.


Cite This Page:

University Of Pittsburgh Medical Center. "University Of Pittsburgh Sports Concussion Study First To Show Cumulative Effects Of Multiple Concussions In High School Athletes." ScienceDaily. ScienceDaily, 29 October 2002. <www.sciencedaily.com/releases/2002/10/021029065642.htm>.
University Of Pittsburgh Medical Center. (2002, October 29). University Of Pittsburgh Sports Concussion Study First To Show Cumulative Effects Of Multiple Concussions In High School Athletes. ScienceDaily. Retrieved December 21, 2014 from www.sciencedaily.com/releases/2002/10/021029065642.htm
University Of Pittsburgh Medical Center. "University Of Pittsburgh Sports Concussion Study First To Show Cumulative Effects Of Multiple Concussions In High School Athletes." ScienceDaily. www.sciencedaily.com/releases/2002/10/021029065642.htm (accessed December 21, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Sunday, December 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

The Best Tips to Curb Holiday Carbs

The Best Tips to Curb Holiday Carbs

Buzz60 (Dec. 19, 2014) It's hard to resist those delicious but fattening carbs we all crave during the winter months, but there are some ways to stay satisfied without consuming the extra calories. Vanessa Freeman (@VanessaFreeTV) has the details. Video provided by Buzz60
Powered by NewsLook.com
Sierra Leone Bikers Spread the Message to Fight Ebola

Sierra Leone Bikers Spread the Message to Fight Ebola

AFP (Dec. 19, 2014) More than 100 motorcyclists hit the road to spread awareness messages about Ebola. Nearly 7,000 people have now died from the virus, almost all of them in west Africa, according to the World Health Organization. Video provided by AFP
Powered by NewsLook.com
Researchers Test Colombian Village With High Alzheimer's Rates

Researchers Test Colombian Village With High Alzheimer's Rates

AFP (Dec. 19, 2014) In Yarumal, a village in N. Colombia, Alzheimer's has ravaged a disproportionately large number of families. A genetic "curse" that may pave the way for research on how to treat the disease that claims a new victim every four seconds. Duration: 02:42 Video provided by AFP
Powered by NewsLook.com
The Best Protein-Filled Foods to Energize You for the New Year

The Best Protein-Filled Foods to Energize You for the New Year

Buzz60 (Dec. 19, 2014) The new year is coming and nothing will energize you more for 2015 than protein-filled foods. Fitness and nutrition expert John Basedow (@JohnBasedow) gives his favorite high protein foods that will help you build muscle, lose fat and have endless energy. 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