Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:


Recovery from sports-related concussion slower than believed


Scientists at the Sahlgrenska Academy have shown that analysis of the cerebrospinal fluid after concussion can be used to determine the magnitude of brain injury and to follow its course. The studies show that recovery from concussion takes much longer time than previously known, and this may be of major significance for athletes of all ages in return to play considerations.

Scientists at the Sahlgrenska Academy have shown that analysis of the cerebrospinal fluid after concussion can be used to determine the magnitude of brain injury and to follow its course. The studies show that recovery from concussion takes much longer time than previously known, and this may be of major significance for athletes of all ages in return to play considerations.

Sanna Neselius is a scientist at the Sahlgrenska Academy and member of the medical commission of the Swedish Boxing Federation. Her previous studies have shown that amateur boxing causes damage to nerve cells, that can take more than two weeks to heal. This discovery led to her being offered a place in the International Olympic Committee's expert group for boxing-related head injuries.

Sanna Neselius has now defended her doctoral thesis at the Sahlgrenska Academy, in which she shows that sports-related concussion heals much slower than previously known.

Four months recovery

"It has previously been believed that concussion heals in 7-10 days, and the Swedish Boxing Federation has decided the rest period to be of one month after a concussion, in order to be on the safe side. But our studies show that a concussion, such as may be experienced after being knocked out, can take more than four months to heal," says Sanna Neselius, who is herself a former boxer.

Further, the results show that repetitive head trauma in boxing, damages nerve cells in the brain, even though the boxer may not show any concussion symptoms.

Prevent resuming too early

Concussion is one of the most common sports-related injuries, and more athletes experience it every year. In recent years, focus has been directed on the effects of repeated concussions, in which athletes in such sports as ice hockey may be affected by long-term effects.

The cerebrospinal fluid samples analysed by Sanna Neselius and her colleagues can be followed until normalization and thereby be a valuable tool to prevent athletes resuming sport too early.

"The assessment today is often based on physical symptoms, neuropsychological tests, and the neurological examination of the athlete. Our studies show that these tests are not sensitive enough, nor can we rely on the athletes self-reported lack of symptoms. Concussion symptoms usually pass after a few days, but the neurological damage may still be present," says Sanna Neselius.

Safe rehabilitation

She continues: "The first sample is recommended to be taken 10-14 days after the concussion. This allows us to see the magnitude of the injury, and gives an idea of how long the healing process will be. I hope that brain injury markers in the cerebrospinal fluid, and hopefully also later in blood, can be used at all levels in all sports. By this we can use individual measurements to plan and guarantee safe rehabilitation."

Sanna Neselius points out that the brains of children and adolescents are more sensitive and require longer time to heal.

The thesis Diagnosis and monitoring of sport-related concussion – a study in amateur boxers was defended at a disputation on May 16.

Link to the thesis:


Sanna Neselius
specialist doctor and research student at the Sahlgrenska Academy
University of Gothenburg
Cell: +46 70 610 1014

Weitere Informationen:

Henrik Axlid | idw - Informationsdienst Wissenschaft

Further reports about: Boxing cerebrospinal damage injuries neurological symptoms thesis

More articles from Studies and Analyses:

nachricht Diagnoses: When Are Several Opinions Better Than One?
19.07.2016 | Max-Planck-Institut für Bildungsforschung

nachricht High in calories and low in nutrients when adolescents share pictures of food online
07.04.2016 | University of Gothenburg

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: New 3-D wiring technique brings scalable quantum computers closer to reality

Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.

"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...

Im Focus: Scientists develop a semiconductor nanocomposite material that moves in response to light

In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.

A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...

Im Focus: Diamonds aren't forever: Sandia, Harvard team create first quantum computer bridge

By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.

"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...

Im Focus: New Products - Highlights of COMPAMED 2016

COMPAMED has become the leading international marketplace for suppliers of medical manufacturing. The trade fair, which takes place every November and is co-located to MEDICA in Dusseldorf, has been steadily growing over the past years and shows that medical technology remains a rapidly growing market.

In 2016, the joint pavilion by the IVAM Microtechnology Network, the Product Market “High-tech for Medical Devices”, will be located in Hall 8a again and will...

Im Focus: Ultra-thin ferroelectric material for next-generation electronics

'Ferroelectric' materials can switch between different states of electrical polarization in response to an external electric field. This flexibility means they show promise for many applications, for example in electronic devices and computer memory. Current ferroelectric materials are highly valued for their thermal and chemical stability and rapid electro-mechanical responses, but creating a material that is scalable down to the tiny sizes needed for technologies like silicon-based semiconductors (Si-based CMOS) has proven challenging.

Now, Hiroshi Funakubo and co-workers at the Tokyo Institute of Technology, in collaboration with researchers across Japan, have conducted experiments to...

All Focus news of the innovation-report >>>



Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

Agricultural Trade Developments and Potentials in Central Asia and the South Caucasus

14.10.2016 | Event News

World Health Summit – Day Three: A Call to Action

12.10.2016 | Event News

Latest News

Resolving the mystery of preeclampsia

21.10.2016 | Health and Medicine

Stanford researchers create new special-purpose computer that may someday save us billions

21.10.2016 | Information Technology

From ancient fossils to future cars

21.10.2016 | Materials Sciences

More VideoLinks >>>