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 balancing act
airborne emergency medical center
anonymity
anvil roller
bandiness
best screenplay
Botnaheidhi
brown clay ironstone
bursae trochanterica subfascialis
cettiid
chaetophobia
Chromiferous-Clinochlore
chuck spindle
circuit of the cells
cleyff
collyrium hydrargyi oxycyanidi
columnar stem
combined drill abd mill machine
come back
congregate
cost of depreciation
dangereux
delivery-stroke
dibutyl tin laurate
dilemma
dimethyldichlorosilance
dock leveler
dropped-scone
dynamic coefficient subgrade reaction
East Langton
east-northeast
explosive mixture
Fanning's equation
faulknor
fibreglass-reinforced metal
forced expiratory volume in one second
gas cycling
global irradiation
grewelle
Grt.
guggulipid
Gwaram
hastatest
Hebeloma
higher than Gilderoy's kite
Hitcham
holford
i-gastliche
isoentropic compression
isopterygium minutifolium
james scott connorss
Japan Machinery Federation
latex finger cot
leggatts
lever-and-screw coupling
liberomotor
Loquilocon
luxur
machoistic
moulding-sand mixture
national enquires
New England press ham
non-tacky toner
nonregulated discharge
offset section
outer circumferential lamella
oviculated
pentalenyl
plastic lining
Pomme de Terre R.
portwood
product detector
read write
record amplifier
relief-map
reserve ratio requirement
roark
s-method of multiple comparisons
scombroid
screen function
secondary calcining
shape element
slope break
Streettalk
sun parlour
super-refractory
supplementary unemployment benefit
synovial(fluid)
tenth Muse
timber cage
timber cofferdam
total power system
unconscious neglect
unimpugned
unsensationalised
up someone's street
Vinylite
warbey
Windows Powered NAS
wireimage.com
wireless operators
yellow-weed