时间:2019-03-06 作者:英语课 分类:英语时差8,16


英语课

 Is heading in soccer dangerous? It's a question that has met its fair share of controversy 1.   If you've never played soccer, heading may look pretty dangerous to the poor brain. Where else in life do you not want to duck away from an object flying straight at your head? However, soccer players know that there is a proper way to head the ball. Yes, there is a technique to meeting a flying ball with your head. And Dr. Frank Webbe, a former soccer referee 2 and coach who is also a psychologist specializing in sports psychology 3, says there is good reason to believe that with proper technique, a player's risk for brain injury is low. The problem is that in a fast-paced game of soccer obstacles sometimes prevent a player from heading with good technique. And that's when problems are likely to arise.


Webbe and collaborators tested soccer players in neurocognitive performance such as attention, concentration, and speed of thinking. They compared long-time soccer players to novices 4, as well as moderate-to-frequent headers to less than moderate headers. In addition, they tested people who had played soccer recently as well as people who hadn't played in some time. The results suggested that more frequent headers are at more risk for brain injury than less frequent headers. As a group, frequent headers performed lower on cognition tests in the week after a game of frequent heading than did other subjects. Also, players with the highest lifetime estimates of heading scored lowest overall on these cognition tests. The results convince Webbe that heading does indeed pose a threat to brain function and that more research needs to be done.  

n.争论,辩论,争吵
  • That is a fact beyond controversy.那是一个无可争论的事实。
  • We ran the risk of becoming the butt of every controversy.我们要冒使自己在所有的纷争中都成为众矢之的的风险。
n.裁判员.仲裁人,代表人,鉴定人
  • The team was left raging at the referee's decision.队员们对裁判员的裁决感到非常气愤。
  • The referee blew a whistle at the end of the game.裁判在比赛结束时吹响了哨子。
n.心理,心理学,心理状态
  • She has a background in child psychology.她受过儿童心理学的教育。
  • He studied philosophy and psychology at Cambridge.他在剑桥大学学习哲学和心理学。
n.新手( novice的名词复数 );初学修士(或修女);(修会等的)初学生;尚未赢过大赛的赛马
  • The Russians are such novices in Africa. 在非洲的俄国人简直都是些毫无经验的生手。 来自辞典例句
  • Where the primary track all novices, screams everywhere, ha ha good terror. 那里的初级道上全是生手,到处都是尖叫声,哈哈好恐怖的。 来自互联网
学英语单词
'alves
abroma fibre
affiliated business
airscrew turbine engine
Amaral Ferrador
anaerobic corrosive bacteria
Anaphalis hancockii
andropogon furcatuss
antibottom
anticorrosive lining
arrears of stock
astigmoscopy
Bainigaon
balloon-system loss preventio
block bookings
boar pig
bouguer's formula
clear log
collision avoidance radar
confederates
control modules
differential thermal calcination
dipropalin
discrete event system simulation language
dish racks
duodenal coccidiosis
enlarged
enneastylos
FCS-M
flat ferry
flowable formulation
fore cabin
foreign exchange reserve
forum conscientiae
French wire
Galvanic Isolation
gamblins
genus Gymnorhina
girl group
give
grocery boys
homoplastically
hull record
hymenocallis amancaes nichols
hystereis loss
indirect measurement
invertebrate
irreducible 3-manifold
Kǔmgang-gun
leopard slug
main transport
metabond
mid-level outlet
Mongolize
most-favoureds
motor inns
mulch farming
Mustela nivalis
Nijinsky, Waslaw/Vaslaw
nondependence relation
Nonimmigrant Visa
offensive rebound
orthoceratids
para red developing range
parovariotomy
phonecard
platinis
Polcirkeln
q-sounds
radiator leak stop
radio play
remote controlled drier
restacks
revailed
rienzo
Rubia manjith
sambuigrin
santa catalinas
seasonal cargo transport
sender pays
septologies
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Shuha Shinto
siphonapterology
skata
society-at-large
Spatholobus sinensis
stream file
taurocholate
tax credit of investment
Torkamān
transfer dish
unexpected braking
upholsteries
useful screen area
Varāmīn
ven'mowse
war fever
water issues
weak lens
wind setup
zandvoorts