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
air tight container
anchor tenant
anti-log
astatical measuring instrument
baitshops
balance of shipment
biorthogonal
black recording
brassicae
C10-TMA
clip leads
cold cutss
colour phase
Comarapa
come away from
Cononaco
coupul
D'Alembert's ratio test
dahlias
deadeningly
demonizers
disinvite
drying tobacco
dystopia canthorum
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escalope de veau orloffs
exogenetic rock
fall in with sb
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fog reactor
forth-issuing
frost-proof wing
Greenfield Hill
heavy ion induced nuclear reaction
hexamerism
hexamidine
import deposit scheme
in anaphase
international mail
inveterates
jSSC
jumping
Krev-1
lateral region of abdomen
letter of indemnity
lowest level of the local people's procurate
magnetostriction cookie cutter
Marmora, Sea of
maternal balance accountancy
mauleon
Maxia, Pta.
menna
nationalatlas
never too late
Nghi Loc
nonusance
nounoun derivatives
peptide nucleic acid
Petworth marble
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plastics for electrical purpose
pr-rf
principal jet
process system
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pseudo-blank symbol
public-key algorithm
purchase agreement
purchasing power of U.S. dollar
radio-goniometer
Raine
regius
Rivière-Pilote
sample preparation for spectrometry
screw controller
Shiwa Ngandu
shusaku
skinflick
small talked
small, unmarked bills
spirula peroniis
spring finger of the latch mechanism
subarine trench
survey in rotation
syndetons
tarangambadi (tranquebar)
tendon transplantation
tinning pot
toroidal configuration
triple-purposes
typingreperforator
United Nations Statistical Office
unromantics
unstrikable
Vaccinium leucobotrys
variola verrmcosa
vitellogenetic
wikenare
ymi