如马龙球拍贴大头照- 拍球,另写三个

羽毛球用球拍捡球如何发力以及技巧,如何练习_百度知道完全傻瓜手册之如何选择一支网球拍
完全傻瓜手册之如何选择一支网球拍
作者:Wilmot
McCutchen 翻译者:发球上网RG
一个傻瓜是不会读这篇文章的。相反,他会在网球用品店顺手拿起一把拍子挥几下后就说: “哇,它真的很轻哦! 我就要这把!”然后当他拿着这把拍子猛打几周之后,他却不得不因为网球肘而放弃了网球。
网球肘才是你最应该关心的问题。 轻、硬且拍头重的球拍往往容易使你得网球肘,因此还是尽量避免使用这种拍子。简单物理学(这里暂且不说,待我下面详细道来)也很清楚地告诉我们,而且你也可以从职业巡回赛里的那些大力击球手的比赛看到。最重要的是:重且拍头轻的球拍最好,既有助于击球的良好表现,也有助于避免受伤。
第一,也是你需要知道的底线:重且拍头轻的拍子是最佳的拍子,既有助于场上的良好表现,也有助于避免受伤。以下是在1999年10月对296支球拍进行评估后所得出的平均数值。其中对肘部是否安全、友好是其中一个重要的评估参数,其次才是球速。结论是显而易见的:重且拍头轻
= 好拍,而轻且拍头重 =
坏拍。桑普拉斯使用的是基本平衡的14盎司(397克)拍子,阿加西使用的是拍头轻(5点位置)的13.5盎司(374克)拍子。从这些顶尖高手的精彩比赛可以看出,他们很清楚地知道在顶级赛事当中应该使用什么样的拍子。(RG: 费德勒、纳达尔、德约科维奇和穆雷、罗迪克等选手用的也是拍头轻的球拍)他们的拍子虽重,但也没有以前的木拍重,甚至木拍年代的小孩子都能挥得动。
现在零售店卖的那些畅销拍,大约都比职业选手用的轻4盎司(113克)。例如阿加西的拍是Head Ti Radical,实际上他的球拍比商店卖的还要重2.5盎司(70克)或更多!
如果你倾向于买一根奶奶们用的拐杖一般轻的拍子,不妨试想一下:当发生车祸时,你更愿意驾驶的是轿车还是卡车?我们都知道轻的轿车会被撞的稀巴烂。球拍与球的冲撞其实也是一样的道理:一把重拍当受到碰撞时仍可以继续往前挥动,并与球发生强烈摩擦进而产生更快的速度和更多的旋转。
轻拍子的拥护者也许会辩解说:当你用更轻的拍子击打球的时候,你可以将更力量更多地用在大力击球上而不是挥拍上,因为更轻的拍子挥起来更容易。他们理所当然的认为只要你有足够的时间和力量执行大幅度的暴力击球时,挥动轻拍子可以更快,以便产生更快的拍头速度来撞击球。他们的这个说法其实存在3个问题:&&&
(1)暴力击球本身并不好控制;
(2)当你伸展身体去击球时,你并没有时间去做一次长挥拍,因此产生的速度是小的,同时因为球拍重量也轻,你的击球将会变得软弱;
轻、快的球拍在与球碰撞的时候会导致减速,同时压迫你的手臂。因为碰撞而减速,使得失去的能量便全去到你的手臂上。这是动量守恒原理,任何上第一学期物理课的学生都应该知道。
大家常常有这样一个常识错误,就是认为球拍的动能越高就越好,如果是那样的话,那么你用羽毛球拍就是最好不过啦,这样你就可以随心所欲的迅速挥拍…
你最需要的一把拍子是那种能够让你用更少的力气打出更快的球速,同时对手臂和肩膀又是最友好的拍子。而你最不需要的一把拍子就是用了很大力气却得不到想要的球速,同时又伤害了手臂。
如果还是同样那把轻拍子,只是将拍子的大多数重量放在拍头,这样又会怎样呢?这样不就变成一把轻且拍头重的拍子了嘛,不就可以击出更有力的球了吗?这样你便获得了更重的随挥重量,拍头变重,击球时拍子的惯性作用就更好,可以产生更快的球速和旋转,但是轻且拍重头的拍子又会有下面这些问题:
一把轻且拍头重的球拍对肘部和肩部并不友好;
(2)在做截击及接发球时会感到沉重和缓慢;
击球的力量更多是来自你自身而不是球拍,与用一把重且拍头轻的球拍相比,你必须付出更多的身体力量以获得你想要的球速。&
最近几年拍头重的轻拍子错误地成了主流,市场上虽然还可以找到诸如PRINCE GRAPHITE
CLASSIC等经典的好拍子,但是他们迟早会断货,像桑普拉斯的那款经典PROSTAFF6.0早已停产了,所以,当你遇到好球拍的时候,记得别只买一把哦(RG:当我第一次接触Wilson Prostaff Tour
90的时候,我便知道这就是我想要的超级好拍,现在回头看它也完全符合作者所描述的好拍特性:轻拍头的重拍子,315克,虽然拍子在业余界算重了,但因为拍头轻,灵活性和操控性极好,当你随挥充分时,击球瞬间的那个爽,实在难以用言语来形容。后来知道这拍子会停产,除了自己轮换打的两只拍子外,还另外添购两支新拍以备后用)。
An idiot wouldn't be reading this.
& Instead, he would swing a racquet a few times in
the pro shop, and say: "Wow, it's so light!& I'll
take it!"& After a few weeks of violent banging,
he would drop out of the game with tennis elbow.
Tennis elbow should be your main concern. & Light,
stiff, head-heavy racquets are bad for tennis elbow, so avoid them.
& Simple physics (which I will not bore you with,
here) is clear on this, and so are the big hitters on the men's
First, the bottom line: heavy and head-light is
best.& Best for performance, best for avoiding
injury.& Here are average values from the database
of 296 racquets in October 1999.& Elbow Crunch is
a measure of elbow safety (should be low), and Work is the effort
needed (should be low) for ball speed.& The
conclusion is clear: heavy and head-light = good // light and
head-heavy = bad.&&
Averages for Worst and Best
(out of 296) for Elbow Crunch
Balance Point from Butt (cm)
Points (point = 1/8 in.)
8 head-heavy
Balance Point from Butt (cm)
Points (point = 1/8 in.)
8 head-light
Averages for Worst and Best
(out of 296) for Work on Serve
Balance Point from Butt (cm)
Points (point = 1/8 in.)
9 head-heavy
Balance Point from Butt (cm)
Points (point = 1/8 in.)
9 head-light
Pete Sampras uses a 14 oz. racquet that has an even balance, Andre
Agassi uses a 13.2 oz. racquet that is 5/8 inch (5 points)
head-light, and Mark Philippoussis uses a 13.5 oz. racquet that is
3/4 inch (6 points) head-light.& These guys, from
their outstanding performance, obviously know something about what
works in top echelon tennis.&&
What they use is no heavier than the old wood racquets, and even
children used to be able to swing them.
Most of the best sellers today, however, are about 4 ounces
lighter.& Why won't the racquet manufacturers
offer the same racquet that these pros use?& If
it's not the same, why mislead people when you know -- or any
reasonable person should know -- that it is deceptive to have the
pro out there with the same paint job as the light
racquet?& Exhibit "A": Andre Agassi plays with
what is purportedly a Head Ti Radical, but his racquet weighs 2.5
ounces more.&
If you are inclined to buy a granny stick, consider this: if you
were in a car accident, which would you rather be driving, a
compact or a truck?& We all know that the light
car will get crushed.& The collision of a racquet
and a ball is the same thing: a heavy racquet will keep going on
impact, crushing the ball more for better pace and
Light racquet partisans argue that because you can swing the light
racquet faster, it will hit harder than a heavy
racquet.& Granted that if you have the time and
energy to execute a long violent stroke, you can swing the light
racquet faster and get greater head velocity on
impact.& Three problems with that: (1) a violent
(2) when you are stretching for a
shot, you don't have time to execute a long stroke, so velocity
will be small and because racquet weight is small also, your shot
and (3) the light, fast racquet will slow down a lot
on impact, stressing the arm.& All of that lost
energy will have to go somewhere, like your arm.&
Momentum (mass times velocity) and not force (mass times
acceleration) or energy (1/2 mass times velocity squared) is what
counts in a collision.& Oops, sorry -- a little
scary physics there, but the point is crucial for understanding the
principle.& It's an elementary point called
, which any first semester
physics student should know.& It is a common
mistake to think that high racquet kinetic energy is desirable, and
therefore a badminton racquet is the best because you can swing it
What you want is a racquet that will give you the most ball speed
for the least effort (Efficiency), and which will not stress your
elbow or shoulder (Elbow Safety and Shoulder Safety).
& What you don't want is to put in a lot of effort
on a wild shot that wrecks your arm.
But what if you put most of the mass in the head, making the
racquet head-heavy?& Wouldn't you then have a
light racquet that hits hard?& The light,
head-heavy racquet will have a high
swingweight, which is good for pace and
spin.& Swingweight is the inertia (resistance to
change in motion) of the racquet as it rotates, and what this means
in practice is that it's harder to whip, but once you get the
racquet rotating (e.g. on the wrist snap of the serve) it will want
to keep rotating when it meets the ball and will crush through,
mashing the ball against the strings for better spin and
pace.& That's the advantage of the Hammer and the
extra-longs.& But in combination with light
weight, there are these drawbacks on closer scrutiny: (1) a light
and head-heavy racquet is bad for the elbow and shoulder, for
(2) it feels heavy and sluggish to position for volleys and
(3) the power comes from your effort, not the racquet, and
you have to work a lot harder to get a certain ball speed than with
a heavy and head-light racquet.&
Although the trend for years has been in the wrong direction,
toward light and head-heavy racquets, there are some excellent
oldies still available, like the Prince Graphite
Classic.& But as time goes on, they get
discontinued.& So do like Pete Sampras (who uses
the legendary St. Vincent ProStaff 6.0 85, long out of production):
don't buy just one, but stock up when they go on
closeout.&
A fairly accurate index of racquet quality, which can be computed
using published racquet specs, is the ratio Mr2 / I
M = racquet mass, in kilograms
r = balance from butt, in centimeters
I = swingweight, in kg.cm2 (about an axis 10 cm from the
butt, the axis used for published measurements)
In the 2002 survey, when ranked by this index, 104 of the 167
racquets were within 10 places of their Expert ranking, and at most
off by 31 at the extreme.& See .&
The average ranks were almost the same.& Using
this formula, index values of 1.10 1.18 or more
are bad.& This index will quickly evaluate new
racquets which have not been ranked yet here.&
good source for new racquet specs.
已投稿到:
以上网友发言只代表其个人观点,不代表新浪网的观点或立场。  但凡器材发烧友者,“烧”到了一定阶段,都有“过尽千帆皆不是”的感受。究竟什么样的球板才是自己真正的归宿,对于到底应该如何选择愈加迷惘。然而,中西方的哲人似乎早早就告诉了我们真理:跟着心走。
  一、天性
  十多年前,笔者刚刚拾起球拍不久,就有一位老教练说道:你适合快攻凶狠型打法。他看我那天生的急性子,虽然技术粗糙但渴望搏杀,力争快速以杀伤力解决战斗的性格,认定我适合走前三板的快攻路子。
  虽然年岁渐长,前三板也不单单是快攻的技术了,但多年来反手弹击为主, 正手强调单板弧圈杀伤力的风格还是在不断验证着老教练的论断。在选择主板的标准上,能够放大力量p最大化地突出底劲的阿尤斯大芯简直成了最不可缺的要求之一。
  我的另外一位小伙伴是个慢性子。当年拿着五块钱的球板,都天天喜欢放着高球给对方打,还有整些古灵精怪的台内小球。而斗转星移,依然还是慢性子的他,今日拿着的正是他的偶像水谷隼的同名球板。蝴蝶水谷隼的桐木大芯轻p软p透,较之阿尤斯更便于控制,拥有更忠实和通透的手感。
  然而,并不是所有性格里拼命三郎的急性子都选择了阿尤斯大芯的球板,也不是所有慢条斯理的慢性子都选择桐木。因为选择,也跟彼此的认知和经历有关。
  二、经历
  父传子承了那么一丢音乐天分,在大多数时候,还是能跟老父亲在喜欢的音乐风格上保持一致。但是,今个碰到的是爵士乐……完全不知所谓,这是父亲的第一感受。真的很好听,这是笔者的第一感受。虽然爵士乐从上世纪二三十年代就传入老上海,但显然,并没有传入过我父亲的耳朵里。
  对于并没有经历过的事物,音乐风格也好,球板也好,人们并不能一开始都能接受。比如加了超级ZL纤维的球板,第一次打,那感觉就像开车时没有一档,一下子直接上了二档,全程是高速体验,不像一般的球板,小力量时速度慢,加大力量后速度变快。ZL纤维的,即便小力量时,也显得轻快。对于很多老球友来说,可能会觉得不易控制。
  同样,对于另外一些不同于笔者的急性子,他们固然也习惯通过杀伤力和前三板来快速解决战斗。但长久以来打着桐木大芯的普碳p蝴蝶王,少有地尝试阿尤斯大芯结构的球板,会感觉力量被放大,反而显得不真实了。虽然他们也爱更强的杀伤力,但心里没底啊。
  “心会跟爱一起走”,但,过往的经历,也会影响着你爱不爱她。
  三、简单
  “我的第一支球板是孔木(蝴蝶孔令辉纯木),等到我烧了十来年后,终于发现了自己心中的最爱,可以作为归宿的球板― 孔木!”当时看到一网友的这番感慨,差点笑喷,但想想却又不无道理。且不提及孔木在小球时代的辉煌,那通透的手感p全面的攻防转换,这里只谈谈人性。
  孔木,五层纯木结构,没有混织其他纤维。如今看来,力量上有点肉了,但良好的手感和控制,总是便于技术的全面运用。它,让打球变得简单了。更一体的p自然的手感,也是一种追求。身旁打着VIS的朋友,最近也改打孔芳碳了, 从5+2到3+2球板结构的转变,让他感觉手上的感觉更清晰了,打球更有数了。
  而孔木,又是上面那位网友打过的第一支球板。发烧过,“过尽千帆皆不是”;但,“曾经沧海难为水,除却巫山不是云”,最初的,有时反而是最好的。因为,至少它让你找回曾经的自己,以及最开始时打球的快乐。
  选择球板,固然要跟着心走。但倘若在选择的过程中,渐渐迷失了,切记,勿忘初心。我们最开始的打球时那纯粹的快乐,才是最重要的。球板不过只是手的延展,不过只是工具。
  *对话回复“装备”,奇珍异宝,随你把玩~
  *本文由国球汇原创,转载请注明国球汇~
相关阅读| 点击图片下方蓝字
  ??英雄,你或许需要这样一支球拍!??快戳阅读原文~
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微信扫一扫分享至朋友圈有些词语,把它倒过来读一读也能说通,如‘球拍’-‘拍球’,写5个。_百度知道有些词语,把它倒过来读一读也能说通,如‘球拍’-‘拍球’,写5个.
我素CK0090
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爸爸 。……下面是我自己搞的日本
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