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
a poon
A tent
absorption water
actuarial table
Alasin
alicycle
amidrazone
apogranite
attribution model
autocatalysts
avian-flu
bastard fount
Beaconsfield
bench-drill
boat bearer
bolillos
bresaolas
Bupleurum longicaule
cage hydraulic press
carbide insert bit
Catcher in the Rye
centimoes
channel decoder
comma construction
contact reliability inspection
cotton-enamel covered wire
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Critesion
crystal tea
decontraction
demolition of property
Deuteronomic, Deuteronomical
deviation of borehole
DIIC
distance of relative movement
distesol
dividend payout ration
duquesnel
equivalent bar
error status register
family Rhinolophidae
gang seeder
general recursive predicate
geographic proximity
gridpoints
GVE
have a peep ab sb
have something on one's shoulders
hereditary predisposition
HF-24
high pressure turbine bypass
hobnail
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ignition residue
intermediate preference targets
irenina malloticola
Kannose-gawa
lameller tearing
leave one's card upon someone
left-click
level of organization
library member
man of quality
mangadom
mesomeric theory
miniaturizes
moneymaking
moral duty
moving speed of table
noise level
north land (severnaya zemlya)
Orroroo
outdoor motor
ovonic threshold switch
partial solid solution
partner's capiatl
perissus asperatus
personal computing conference
photoelectric photometer
pillar shaping machine
placentotrophy
Planchonella obovata
plex structure
primary safety valve for inner container
project production
rekles
sample pulse phase
Shentoo's line
sinaed
spring for air pump
stewed
suck-boy
takehome
thermal decomposition method
transmission standards
ultrasonic test method
UNRPR
UVPROM
uvular diastematia
walkback
weirty
workcentre