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
6-deoxy-L-mannose
absorb nourishment
animal shortening
average response technique
bacilluria
biological monitoring
blockaded
bullous eruption
Burujird
calyculi ophthalmicus
canales nasolacrimalis
cargo oil valve control room
cat-head chuck
chagnons
champagne flutes
chicken oil saute green cabbage heart
circle of confusion
Cobbs' disease
coloratoin
coloured woodcut
constant-thickness arch
consumption norm of subsidiary materials
continuous cycle group
conversion of time
delamination buckling
diazaphospholane
double-coated X-ray film
dwelling expense
emotive language
examina
exhibitive media
false-colours
fetal atelectasis
fuck with people
gas shielded metal arc welding
genus Aegilops
grammicolepis brachiusculus
hyperaerated
hysteresis curve recorder
in the back of your mind
incision and drainage of auricle
infundibular punch
inlymn
ISAKMP
law of mobile equilibrium
loose change gear
lord loughborough i.
lunglike
medi-
metempiricist
mogul cap
mollywhopping
monospace
noise adaptive autopilot
non-Newtonian type fluid lubrication
nonplanted
nonpornography
nonviolent pornography
noose suture
notch root
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overhead economy
pack duck
parasagittal section
partial amputation of penis
pathotoxin
payroll clerk
person declared dead
petitiononline
phase pushing figure
piston pin hole reamer
plankton bloom
plastik
playing with a full deck
potable spirit
radial check
rating parameter
receipt a bill
RNAdependent RNA polymerase
rosecolored
rotiferas
salvific, salvifical
scale-winged
scarlet maple
sdsisnsisnsgs-s
senate campaign
separability
serpeak process
Shaam
site fabrication
smes
snowbanks
stage of relief
strong seam
systematic hydrology
theory of common mediation
togeather
trab (tsh receptor antibody)
Ushiku
yelverton