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
about facing
acoustic output unit
ancillary relief
angle of collimation
animal protection
annect
aporina delafondi
arch-abdomen dam
automatic diesel generating set
bacillus
bathypelagic fauna
blazed grating
bourbon red turkey
breakevens
cabbeling
calibration error
Castelan
chaulmoogrol
cobbling
combining capacity
Corlea
creedy
cullar de baza
data reconciliation
deadhand
deck load certification
dissolved pore
Dormigca
esquire
European thimbleweed
evaders
exchange traded product
executing block
faddity
float grass
format line
frequency multiplier circuit
Gaiaist
give heart to
hydraulic hitch system with unloading function
Hyphochytriomycota
in a word
irreducible algebraic equation
Kocher fracture
Kodisjoki
labial laminae
laser head assembly
lasting machine
least significant byte
libriums
lie in someone's way
line key
local thermal runaway
lone-pairs
Mamabula
Maxwellisation
microstelma japonica
mueshihange
navire
off board price
oil quenching bath
order and confirmation
orthoguarinite
parrot's peach
pastry store
pat down
PHLA
Pleasanton
post-tragus
potassium content
price waterhouse&co.
product assurance
pseudothiourea
Ranunculus oreionannos
re-copper
recovery phase
rootogram
sashless
scheeles
scraper roller
senescence phase
silicon dioxide powder
solid-state study
spelaeologies
staypole
straw ware
synchronized wave
tawz
telecommunications facility provider
theory of pay
time trials
to maintain
transbooster
transmitted pulse envelope
trapezoidal steel box girder
treux
tunica adventitia (vesicul? seminalis)
umbrella convention
unit connection
wind-fallen
wing-control missile
word power