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
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accident on duty
adrienne rich
agromanias
aluminium-foil with paper lining
ammonium nitrogen
arachnidian
automatic matching
axial turbomachinery
Bargate beds
be nothing to do with
be well in there
beta-msh
blade point
Bofors gun
camping sites
Cao Cao
centerfold
cooked to a turn
crack mouth opening displacement
cryptothermal deposit
ctenidium stellulatum
D. O.
david bruces
Dentolingual.
direct contact freezing
ductile-brittle deformation
Economic Planning Board
eight-hundred
electrolytic conductance meter
ethyl isocyanide
fabric heat conductivity
familiarize yourself with sth
filicina
fremont cottonwood
fungal
gab-motion
going past
grain EMC model
Guermessa
gyro
hacskaylo
helianthus
HHFA
immediate movement
induced velocity field
k joint
magnetic electricity
magneto resistive magnetometer
mandatory carriage
mattress seromuscular suture
melongoside
mob-handedness
model driven
Moore-Smith convergence
multen
myopuncture
National Aeronautic Association
negative temperature coefficient of reactivity
nonfussy
nutritional requirements
Ocean Pearl
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officer commanding
ophthalmotonomete
outlay creep
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polyhydrone
Pomerene Act
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quadratojugale
ramified
repair of cylinder cracks
restrospect to
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sandheaps
segregation in central city
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shell knocker
soil test summaries
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system closure
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text formatting system
thomas wright wallers
three-bladed propeller wind machine
titleholders
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tropics sprangletop
tube-uranium interface
Tupaiinae
turnesa
tuy
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user's program
venovenous
vigna unguiculatas
watta satta
xylochloral
yeo-ho