Evidence shows cognitive rest aids concussion recovery
Michelle Healy
USA TODAY
January 6, 2014
After a concussion, children and teens who engaged in the highest levels of cognitive activity took the longest to fully recover from symptoms, a study finds.
Story Highlights
Increased cognitive activity is associated with longer concussion recovery
Data supporting the benefit of brain rest following a concussion has been limited
Academic accommodations for students recovering from concussions should be allowed
Letting a young person rest his or her brain after a concussion — limiting reading, online activities, even homework — can result in quicker recovery, a new study says.
Although reducing cognitive activity to rest the brain is commonly recommended for concussion treatment, there has been limited research to back up that advice. But the new study in January's Pediatrics, published online today, lends support to the idea.
Story: Report calls for action on concussions among kids
In the study of 335 children and young adults, ages 8 to 23, those reporting the greatest levels of cognitive activity (including homework, playing video games, doing crossword puzzles, text messaging and online activities) after a concussion took the longest to fully recover from their symptoms — approximately 100 days on average, compared to approximately 20 to 50 days for patients reporting lesser levels of activity.
Cognitive activities were defined as "activities that require you to think harder than usual" and study participants were grouped according to the average amount of cognitive activity — from complete cognitive rest to a full schedule — that they reported doing between each visit to a concussion clinic.
In addition to showing that cognitive rest works, the findings also show "there's no need to take cognitive rest to the extreme," such as putting patients in a dark room and eliminating all cognitive activity, as advocated by some. "Those who were doing milder levels of cognitive activity recovered at about the same rate as those who were doing minimal levels," says study co-author William Meehan, director of research for the Brain Injury Center at Boston Children's Hospital and director of the Micheli Center for Sports Injury Prevention.
The findings bolster recommendations in favor of academic accommodations that allow cognitive rest for students recovering from concussions, says Meehan.
Even though there are guidelines by the American Academy of Pediatrics, the American College of Sports Medicine, the American Academy of Neurology and others, "the implementation of cognitive rest has been variable and even controversial" in part because of the lack of empirical evidence, he says.
According to statistics from the University of Pittsburgh Medical Center Sports Medicine Concussion Program, between 1.7 and 3 million sports- and recreation-related concussions occur every year. Five of 10 concussions go unreported or undetected. One in 10 high school athletes who play contact sports will suffer a concussion this year.
"Most of us involved in concussion management have been telling folks for years to do some degree of cognitive rest up front, (although) we didn't have great evidence behind that" recommendation, says Greg Canty, director of the Center for Sports Medicine at Children's Mercy Hospitals and Clinics in Kansas City, Mo. This research "starts to build a better body of evidence," says Canty, who was not involved in the study.
It also "adds some recognition that it's not just physical rest that may allow that brain to heal, but that some degree of cognitive rest is also likely beneficial."
Showing posts with label concussion. Show all posts
Showing posts with label concussion. Show all posts
Sunday, January 19, 2014
Thursday, December 26, 2013
Brain scans found seniors with both poor memory and prior head injury have more plaque buildup
Brain scans found seniors with both poor memory and prior head injury have more plaque buildup
WebMD News from HealthDay
By Kathleen Doheny
Dec. 26, 2013
(HealthDay News) -- Older adults with memory problems and a history of concussion have more buildup of Alzheimer's disease-associated plaques in the brain than those who also had concussions but don't have memory problems, according to a new study.v
''What we think it suggests is, head trauma is associated with Alzheimer's-type dementia -- it's a risk factor," said study researcher Michelle Mielke, an associate professor of epidemiology and neurology at Mayo Clinic Rochester. "But it doesn't mean someone with head trauma is [automatically] going to develop Alzheimer's."
Her study is published online Dec. 26 and in the Jan. 7 print issue of the journal Neurology.
Previous studies looking at whether head trauma is a risk factor for Alzheimer's have come up with conflicting results, she noted. And Mielke stressed that she has found only a link or association, not a cause-and-effect relationship.
In the study, Mielke and her team evaluated 448 residents of Olmsted County, Minn., who had no signs of memory problems. They also evaluated another 141 residents with memory and thinking problems known as mild cognitive impairment. More than 5 million Americans have Alzheimer's disease, according to the Alzheimer's Association. Plaques are deposits of a protein fragment known as beta-amyloid that can build up in between the brain's nerve cells. While most people develop some with age, those who develop Alzheimer's generally get many more, according to the Alzheimer's Association. They also tend to get them in a predictable pattern, starting in brain areas crucial for memory. In the Mayo study, all participants were aged 70 or older. The participants reported if they ever had a brain injury that involved loss of consciousness or memory. Of the 448 without any memory problems, 17 percent had reported a brain injury. Of the 141 with memory problems, 18 percent did. This suggests that the link between head trauma and the plaques is complex, Mielke said, as the proportion of people reporting concussion was the same in both groups. Brain scans were done on all the participants. Those who had both concussion history and cognitive [mental] impairment had levels of amyloid plaques that were 18 percent higher than those with cognitive impairment but no head trauma history, the investigators found. Among those with mild cognitive impairment, those with concussion histories had a nearly five times higher risk of elevated plaque levels than those without a history of concussion. The researchers don't know why some with concussion history develop memory problems and others do not. The research was funded by the U.S. National Institutes of Health, among several other supporters.Brain scans found seniors with both poor memory and prior head injury have more plaque buildup Share this: Font size: AAA WebMD News from HealthDay New guidelines address which patients might By Kathleen Doheny HealthDay Reporter THURSDAY, Dec. 26, 2013 (HealthDay News) -- Older adults with memory problems and a history of concussion have more buildup of Alzheimer's disease-associated plaques in the brain than those who also had concussions but don't have memory problems, according to a new study. ''What we think it suggests is, head trauma is associated with Alzheimer's-type dementia -- it's a risk factor," said study researcher Michelle Mielke, an associate professor of epidemiology and neurology at Mayo Clinic Rochester. "But it doesn't mean someone with head trauma is [automatically] going to develop Alzheimer's." Her study is published online Dec. 26 and in the Jan. 7 print issue of the journal Neurology. Previous studies looking at whether head trauma is a risk factor for Alzheimer's have come up with conflicting results, she noted. And Mielke stressed that she has found only a link or association, not a cause-and-effect relationship. In the study, Mielke and her team evaluated 448 residents of Olmsted County, Minn., who had no signs of memory problems. They also evaluated another 141 residents with memory and thinking problems known as mild cognitive impairment. More than 5 million Americans have Alzheimer's disease, according to the Alzheimer's Association. Plaques are deposits of a protein fragment known as beta-amyloid that can build up in between the brain's nerve cells. While most people develop some with age, those who develop Alzheimer's generally get many more, according to the Alzheimer's Association. They also tend to get them in a predictable pattern, starting in brain areas crucial for memory. In the Mayo study, all participants were aged 70 or older. The participants reported if they ever had a brain injury that involved loss of consciousness or memory. Of the 448 without any memory problems, 17 percent had reported a brain injury. Of the 141 with memory problems, 18 percent did. This suggests that the link between head trauma and the plaques is complex, Mielke said, as the proportion of people reporting concussion was the same in both groups. Brain scans were done on all the participants. Those who had both concussion history and cognitive [mental] impairment had levels of amyloid plaques that were 18 percent higher than those with cognitive impairment but no head trauma history, the investigators found. Among those with mild cognitive impairment, those with concussion histories had a nearly five times higher risk of elevated plaque levels than those without a history of concussion. The researchers don't know why some with concussion history develop memory problems and others do not. The research was funded by the U.S. National Institutes of Health, among several other supporters. The study adds valuable information for experts in the field, said Dr. Robert Glatter, director of sports medicine and traumatic brain injury in the department of emergency medicine at Lenox Hill Hospital, in New York City. Glatter, who is also a former sideline physician for the National Football League's New York Jets, reviewed the new study findings. The study adds valuable information for experts in the field, said Dr. Robert Glatter, director of sports medicine and traumatic brain injury in the department of emergency medicine at Lenox Hill Hospital, in New York City. Glatter, who is also a former sideline physician for the National Football League's New York Jets, reviewed the new study findings.
WebMD News from HealthDay
By Kathleen Doheny
Dec. 26, 2013
(HealthDay News) -- Older adults with memory problems and a history of concussion have more buildup of Alzheimer's disease-associated plaques in the brain than those who also had concussions but don't have memory problems, according to a new study.v
''What we think it suggests is, head trauma is associated with Alzheimer's-type dementia -- it's a risk factor," said study researcher Michelle Mielke, an associate professor of epidemiology and neurology at Mayo Clinic Rochester. "But it doesn't mean someone with head trauma is [automatically] going to develop Alzheimer's."
Her study is published online Dec. 26 and in the Jan. 7 print issue of the journal Neurology.
Previous studies looking at whether head trauma is a risk factor for Alzheimer's have come up with conflicting results, she noted. And Mielke stressed that she has found only a link or association, not a cause-and-effect relationship.
In the study, Mielke and her team evaluated 448 residents of Olmsted County, Minn., who had no signs of memory problems. They also evaluated another 141 residents with memory and thinking problems known as mild cognitive impairment. More than 5 million Americans have Alzheimer's disease, according to the Alzheimer's Association. Plaques are deposits of a protein fragment known as beta-amyloid that can build up in between the brain's nerve cells. While most people develop some with age, those who develop Alzheimer's generally get many more, according to the Alzheimer's Association. They also tend to get them in a predictable pattern, starting in brain areas crucial for memory. In the Mayo study, all participants were aged 70 or older. The participants reported if they ever had a brain injury that involved loss of consciousness or memory. Of the 448 without any memory problems, 17 percent had reported a brain injury. Of the 141 with memory problems, 18 percent did. This suggests that the link between head trauma and the plaques is complex, Mielke said, as the proportion of people reporting concussion was the same in both groups. Brain scans were done on all the participants. Those who had both concussion history and cognitive [mental] impairment had levels of amyloid plaques that were 18 percent higher than those with cognitive impairment but no head trauma history, the investigators found. Among those with mild cognitive impairment, those with concussion histories had a nearly five times higher risk of elevated plaque levels than those without a history of concussion. The researchers don't know why some with concussion history develop memory problems and others do not. The research was funded by the U.S. National Institutes of Health, among several other supporters.Brain scans found seniors with both poor memory and prior head injury have more plaque buildup Share this: Font size: AAA WebMD News from HealthDay New guidelines address which patients might By Kathleen Doheny HealthDay Reporter THURSDAY, Dec. 26, 2013 (HealthDay News) -- Older adults with memory problems and a history of concussion have more buildup of Alzheimer's disease-associated plaques in the brain than those who also had concussions but don't have memory problems, according to a new study. ''What we think it suggests is, head trauma is associated with Alzheimer's-type dementia -- it's a risk factor," said study researcher Michelle Mielke, an associate professor of epidemiology and neurology at Mayo Clinic Rochester. "But it doesn't mean someone with head trauma is [automatically] going to develop Alzheimer's." Her study is published online Dec. 26 and in the Jan. 7 print issue of the journal Neurology. Previous studies looking at whether head trauma is a risk factor for Alzheimer's have come up with conflicting results, she noted. And Mielke stressed that she has found only a link or association, not a cause-and-effect relationship. In the study, Mielke and her team evaluated 448 residents of Olmsted County, Minn., who had no signs of memory problems. They also evaluated another 141 residents with memory and thinking problems known as mild cognitive impairment. More than 5 million Americans have Alzheimer's disease, according to the Alzheimer's Association. Plaques are deposits of a protein fragment known as beta-amyloid that can build up in between the brain's nerve cells. While most people develop some with age, those who develop Alzheimer's generally get many more, according to the Alzheimer's Association. They also tend to get them in a predictable pattern, starting in brain areas crucial for memory. In the Mayo study, all participants were aged 70 or older. The participants reported if they ever had a brain injury that involved loss of consciousness or memory. Of the 448 without any memory problems, 17 percent had reported a brain injury. Of the 141 with memory problems, 18 percent did. This suggests that the link between head trauma and the plaques is complex, Mielke said, as the proportion of people reporting concussion was the same in both groups. Brain scans were done on all the participants. Those who had both concussion history and cognitive [mental] impairment had levels of amyloid plaques that were 18 percent higher than those with cognitive impairment but no head trauma history, the investigators found. Among those with mild cognitive impairment, those with concussion histories had a nearly five times higher risk of elevated plaque levels than those without a history of concussion. The researchers don't know why some with concussion history develop memory problems and others do not. The research was funded by the U.S. National Institutes of Health, among several other supporters. The study adds valuable information for experts in the field, said Dr. Robert Glatter, director of sports medicine and traumatic brain injury in the department of emergency medicine at Lenox Hill Hospital, in New York City. Glatter, who is also a former sideline physician for the National Football League's New York Jets, reviewed the new study findings. The study adds valuable information for experts in the field, said Dr. Robert Glatter, director of sports medicine and traumatic brain injury in the department of emergency medicine at Lenox Hill Hospital, in New York City. Glatter, who is also a former sideline physician for the National Football League's New York Jets, reviewed the new study findings.
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