新奇事件簿 頭球會對大腦造成損傷

00:00

00:00

MP3下載 文本下載

https://online2.tingclass.net/lesson/shi0529/10000/10315/587.mp3

https://image.tingclass.net/statics/js/2012

New research suggests that soccer players are at risk of brain injury, especially those who head the ball a lot. Researchers in America carried out tests on 38 amateur football players over the age of 30 who had played the sport since childhood. Doctors gave them MRI brain scans and tests to assess their brain function. The players were asked to estimate the number of times they had headed a ball in the past year. The research findings indicate a degree of brain injury not usually present in people who do not play soccer. Doctors reported the condition to be a form of concussion known as mild traumatic brain injury (TBI). This can easily occur in soccer due to the frequent impact of the head with a ball that can travel at speeds close to 100 kph.

新的研究表明，足球運動員面臨大腦損傷的風險，尤其是經常做頭球動作的人。美國研究人員對38名30歲以上的業(yè)余足球運動員進行了測試，他們從童年時期就開始踢球。醫(yī)生對他們進行了MRI大腦掃描，并進行了評估大腦功能的測試。研究人員還要求他們自我估計一下過去一年頭球的次數。研究結果發(fā)現了在不踢足球的人群中罕見的腦損傷。醫(yī)生報告稱這是一種腦震蕩，名為輕型腦外傷(TBI)。由于頻繁地用頭頂速度接近100千米每小時的球，這種情況在足球運動中很容易發(fā)生。

Lead author Doctor Michael Lipton explained the effect heading a ball can have on the brain: “Heading a soccer ball is not an impact of a magnitude that will [cut] nerve fibers in the brain, but repetitive heading may set off a cascade of responses that can lead to a degeneration of brain cells." He added: “Brain injury and cognitive impairment can result from heading a soccer ball with high frequency….These are findings that should be taken into consideration in planning future research to develop approaches to protect soccer players." Doctor Lipton concluded it would be difficult to detect brain injury in children as it takes years of heading a ball for the damage to show up in brain scans.

首席作者Michael Lipton解釋了頂球可能對大腦造成的影響：“頂球并不會造成切斷大腦神經元的重大影響，但是反復多次頂球會引發(fā)大量反應，導致腦細胞退化。”他補充說：“高頻率的頭球會導致大腦損傷和認知缺損。將來針對保護足球隊員的方法進行研究時應該考慮這次的研究結果。”Lipton醫(yī)生得出結論，洞察兒童大腦損傷非常困難，因為多年的頂球動作造成的損傷才會在腦掃描中表現出來。