l*******u
发帖数: 1288 | 1 【 以下文字转载自 Rainbow 讨论区 】
发信人: liushanhu (我代表党和人民处决你！), 信区: Rainbow
标 题: 一男子中风后变成同性恋 gay is disease
发信站: BBS 未名空间站 (Thu Nov 17 10:49:48 2011, 美东)
据英国《每日电讯报》9日报道，英国一名男子中风康复后变成同性恋者，并改变
职业，成了一名美发师。
这名来自南威尔士的男子现年26岁，名叫克里斯·伯奇。6年前，他在一次橄榄球
训练中意外扭伤脖子导致中风。康复出院后，他性格骤变，原本喜欢橄榄球运动的他，
现在却很讨厌体育运动，还辞去银行的工作，成为一名美发师。
更令人惊讶的是，中风康复后的克里斯开始喜欢打扮，并取消了婚约，开始与一名
男子约会，变成一名同性恋者。他说：“我（中风）醒来后，发现一切都改变了，我对
女人没有任何兴趣，而以前我没这样过，我得直面自己的感受。”他还表示，他觉得比
以前任何时候都更快乐。但他的家人对此表示难以理解。
英国中风协会发言人科纳尔称，大脑康复过程中，神经元重新连接，会激活大脑中
的一些潜意识，因此会出现中风后口音、语言或性... 阅读全帖 |
|
B********e
发帖数: 19317 | 2 【 以下文字转载自 WaterWorld 讨论区 】
发信人: liushanhu (我代表党和人民处决你！), 信区: WaterWorld
标 题: 一男子中风后变成同性恋 gay is disease (转载)
发信站: BBS 未名空间站 (Thu Nov 17 10:50:10 2011, 美东)
发信人: liushanhu (我代表党和人民处决你！), 信区: Rainbow
标 题: 一男子中风后变成同性恋 gay is disease
发信站: BBS 未名空间站 (Thu Nov 17 10:49:48 2011, 美东)
据英国《每日电讯报》9日报道，英国一名男子中风康复后变成同性恋者，并改变
职业，成了一名美发师。
这名来自南威尔士的男子现年26岁，名叫克里斯·伯奇。6年前，他在一次橄榄球
训练中意外扭伤脖子导致中风。康复出院后，他性格骤变，原本喜欢橄榄球运动的他，
现在却很讨厌体育运动，还辞去银行的工作，成为一名美发师。
更令人惊讶的是，中风康复后的克里斯开始喜欢打扮，并取消了婚约，开始与一名
男子约会，变成一名同性恋者。他说：“我（中风）醒来后，发现一切... 阅读全帖 |
|
l*******u
发帖数: 1288 | 3 【 以下文字转载自 Rainbow 讨论区 】
发信人: liushanhu (我代表党和人民处决你！), 信区: Rainbow
标 题: 一男子中风后变成同性恋 gay is disease
发信站: BBS 未名空间站 (Thu Nov 17 10:49:48 2011, 美东)
据英国《每日电讯报》9日报道，英国一名男子中风康复后变成同性恋者，并改变
职业，成了一名美发师。
这名来自南威尔士的男子现年26岁，名叫克里斯·伯奇。6年前，他在一次橄榄球
训练中意外扭伤脖子导致中风。康复出院后，他性格骤变，原本喜欢橄榄球运动的他，
现在却很讨厌体育运动，还辞去银行的工作，成为一名美发师。
更令人惊讶的是，中风康复后的克里斯开始喜欢打扮，并取消了婚约，开始与一名
男子约会，变成一名同性恋者。他说：“我（中风）醒来后，发现一切都改变了，我对
女人没有任何兴趣，而以前我没这样过，我得直面自己的感受。”他还表示，他觉得比
以前任何时候都更快乐。但他的家人对此表示难以理解。
英国中风协会发言人科纳尔称，大脑康复过程中，神经元重新连接，会激活大脑中
的一些潜意识，因此会出现中风后口音、语言或性... 阅读全帖 |
|
f**d
发帖数: 768 | 4 这是一本计算神经科学的优秀著作，全文拷贝这里（图和公式缺），有兴趣的同学可以
阅读
如需要，我可以分享PDF文件（－－仅供个人学习，无商业用途）
From Computer to Brain
William W. Lytton
From Computer to Brain
Foundations of Computational Neuroscience
Springer
William W. Lytton, M.D.
Associate Professor, State University of New York, Downstato, Brooklyn, NY
Visiting Associate Professor, University of Wisconsin, Madison
Visiting Associate Professor, Polytechnic University, Brooklyn, NY
Staff Neurologist., Kings County Hospital, Brooklyn, NY
In From Computer to Brain: ... 阅读全帖 |
|
l*******u
发帖数: 1288 | 5 【 以下文字转载自 Rainbow 讨论区 】
发信人: liushanhu (我代表党和人民处决你！), 信区: Rainbow
标 题: 一男子中风后变成同性恋 gay is disease
发信站: BBS 未名空间站 (Thu Nov 17 10:49:48 2011, 美东)
据英国《每日电讯报》9日报道，英国一名男子中风康复后变成同性恋者，并改变
职业，成了一名美发师。
这名来自南威尔士的男子现年26岁，名叫克里斯·伯奇。6年前，他在一次橄榄球
训练中意外扭伤脖子导致中风。康复出院后，他性格骤变，原本喜欢橄榄球运动的他，
现在却很讨厌体育运动，还辞去银行的工作，成为一名美发师。
更令人惊讶的是，中风康复后的克里斯开始喜欢打扮，并取消了婚约，开始与一名
男子约会，变成一名同性恋者。他说：“我（中风）醒来后，发现一切都改变了，我对
女人没有任何兴趣，而以前我没这样过，我得直面自己的感受。”他还表示，他觉得比
以前任何时候都更快乐。但他的家人对此表示难以理解。
英国中风协会发言人科纳尔称，大脑康复过程中，神经元重新连接，会激活大脑中
的一些潜意识，因此会出现中风后口音、语言或性... 阅读全帖 |
|
l****z
发帖数: 29846 | 6 http://www.bbc.co.uk/news/magazine-17703018
The stroke had turned me gay'
By Lucy Wallis BBC News
Chris Birch revisits the scene of the accident for the first time since it
happened
Following a stroke, Chris Birch's personality and sexuality altered
dramatically. Now he is trying to rediscover who he is and why these changes
may have happened.
"It's like looking at somebody else, but with my face only younger, and in
all fairness, if I met myself I'd probably carry on walking."
Looking at past p... 阅读全帖 |
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i*********5
发帖数: 19210 | 7 http://www.slowtwitch.com/Training/Swimming/Your_Best_Freestyle
Written by: Gary Hall, Sr.
Added: Sun Jan 30 2011
In life there are lumpers and splitters. Lumpers like to simplify everything
, perhaps to a fault, while splitters like to differentiate everything down
to the finest detail, perhaps to an obsession. Neither is necessarily right
or wrong, but for the moment, to describe the act of performing freestyle,
where admittedly, everyone appears to have a different stroke, I am going to
be a ... 阅读全帖 |
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l*****y
发帖数: 5737 | 8 ☆─────────────────────────────────────☆
MakingWaves (making waves) 于 (Mon Dec 31 14:28:31 2012, 美东) 提到:
今年我妈住了两次院。现在我看， 好像都不是非住院不可的毛病。但医院从利益出发
，轻易建议住院, 过度治疗， 病人结果适得其反。
第一次是年初。一天早晨我妈起床上厕所，不知怎么就摔倒在床边，短暂昏迷。我爸随
后扶她去了医院。诊断是脑梗，收住院，点滴稀释血液的药， 同时点滴所谓有营养功
能的中药制剂。最多的时候，一天里输液有七种药品。我妈本来血压还不大高，输了几
天液，血压就高上去了， 腿走路都没劲了。她以前做过核磁共振， 当时大夫说，那结
果，不要说是六十多岁的人的，就算是四十多岁的人，都算正常。这次住院又作了核磁
共振，和一两年前比较，并无大变化，但脑梗的诊断不变。每次我妈抱怨不舒服，大夫
就再给加一种药输液。后来我妈实在受不了了，说，“走着进的医院， 住了几天，反
倒不能走路了”。终于在两个多星期后坚持出院。回家后， 不用那些药， 血压又正常
了，人有劲了, 也没再摔过... 阅读全帖 |
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i*********5
发帖数: 19210 | 9 Swim Smooth Analysis: 2013 Barcelona World Championships
http://www.feelforthewater.com/2013/08/swim-smooth-analysis-201
1. Zero Glide From Katie Ledecky
If you study footage of Ledecky's stroke, you can see how her stroke starts
immediately as the previous stroke finishes at the rear. Katie may appear to
glide down the pool with her super-smooth stroke but this is in fact an
illusion, her propulsion is smooth and continuous and there's zero pause-and
-glide in her stroke:
Consecutive video fram... 阅读全帖 |
|
|
b*****e
发帖数: 5133 | 11 评判stroke的标准不只限于时间：
distance per stroke(DPS)/stroke length(SL)
同样距离stroke少比storke多更完美。
同样距离stroke频率(rate)增加，stroke次数不增加也体现stroke效率没有降低。
冲刺型的游泳需要部分用频率替代效率。不考虑极速，可以更注重stroke，说不定可以
练到以更少的体力消耗达到更快的速度。
这个自己验证过了，stroke效率高的话自由泳放松游平均一次划水一个身长距离，普通
游3/4身长，冲刺游2/3身长，包括蹬壁出发，放松时的2-beat kick或高速时的6-beat
kick。stroke更好的高手DPS/SL更长。不少人普通游时DPS/SL只有半个身长多点，有提高
的空间。即使是放松游已经效率高了，也有保持这个效率同时缩短时间的挑战。
完善stroke的好处是训练目标不直接和时间挂钩，但和水中阻力和保持平衡等密切相关
，好的stroke就是在水中阻力小。阻力小在低速时优势不明显，在比赛或高速时阻力小
有非常大的优势。这和车子油耗在市区相差不多，在高速越流线油耗越低是一个道理。
水中... 阅读全帖 |
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i*********5
发帖数: 19210 | 12 再来看看孙杨和加拿大的Ryan Cochrane的动作比较。
With very similar strokes underwater, Ryan Cochrane (right) leads Sun Yang
during the 1500m final
Both Yang and Ledecky are what we call the Smooth Swim Type, having long
smooth freestyle strokes and a powerful 6 beat kick when in full-flight.
Notably both swimmers drop down to an intermittent flutter kick over long
races, saving their full kick for the last 1-200m of a distance race. This
ability to sprint is a trademark of the Smooth type, who have a natural turn... 阅读全帖 |
|
c*********r
发帖数: 19468 | 13 我觉得是各方面达到当前成本能承受的极限了
和摩托车比的，汽车引擎的stroke都大很多啊，同样转速活塞加速度肯定高得多，机械
强度的要求就不一样。不过连杆长度数据很难找，所以这个也不好算。不过平均活塞速
度比较容易算，这个和活塞加速度也相关，而且和填充效率也有关。我查了几个
Superbike（摩托不是太懂，如果我举例子不恰当，请马丁等熟悉摩托技术的兄弟指正
）：
BMW S1000RR, stroke＝49.7mm, redline＝14000rpm，平均活塞速度合算23.19m/s
Ducati 1199 Panigale R, stroke＝60.8mm，redline＝11500rpm，平均活塞速度合算
23.31m/s
Kawasaki Ninja ZX-10R，stroke＝55.0mm，redline＝13000rpm，平均活塞速度合算23
.83m/s
Honda CBR1000RR, stroke＝55.1mm, redline＝13000rpm, 平均活塞速度合算23.88m/s
Yamaha YZF-R1，stroke＝52.2mm，redline＝13750rp... 阅读全帖 |
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W***n
发帖数: 11530 | 14 Besides prison term, Singaporean style canning is good this guy.
How 'bout 20 strokes.
"dministration procedure[edit]
Caning is, in practice, always ordered in addition to a jail sentence and
never as a punishment by itself. It is administered in an enclosed area in
the prison out of the view of the public and other inmates.[8] A medical
officer and the Superintendent of Prisons are required to be present at
every caning session.[38]
The offender is not told in advance when he will be caned; he ... 阅读全帖 |
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a********9
发帖数: 3813 | 15 Trump’s Immigration Ban Blocks Travelers at Airports Around Globe
WASHINGTON — President Trump’s executive order on immigration
quickly
reverberated through the United States and across the globe on Saturday,
slamming the border shut for an Iranian scientist headed to a lab in Boston,
an Iraqi who had worked as an interpreter for the United States Army, and a
Syrian refugee family headed to a new life in Ohio, among countless others.
Around the nation, security officers at major international ga... 阅读全帖 |
|
a********9
发帖数: 3813 | 16 Trump’s Immigration Ban Blocks Travelers at Airports Around Globe
WASHINGTON — President Trump’s executive order on immigration
quickly
reverberated through the United States and across the globe on Saturday,
slamming the border shut for an Iranian scientist headed to a lab in Boston,
an Iraqi who had worked as an interpreter for the United States Army, and a
Syrian refugee family headed to a new life in Ohio, among countless others.
Around the nation, security officers at major international ga... 阅读全帖 |
|
a********9
发帖数: 3813 | 17 最新消息：
Trump’s Immigration Ban Blocks Travelers at Airports Around Globe
WASHINGTON — President Trump’s executive order on immigration
quickly
reverberated through the United States and across the globe on Saturday,
slamming the border shut for an Iranian scientist headed to a lab in Boston,
an Iraqi who had worked as an interpreter for the United States Army, and a
Syrian refugee family headed to a new life in Ohio, among countless others.
Around the nation, security officers at major internatio... 阅读全帖 |
|
w***n
发帖数: 9040 | 18 runners world有篇文章挺好的标题叫： why not tri
同学们三项吧
http://www.runnersworld.com/triathlon-training/why-not-tri?page
SWIM
Swimming is perhaps the perfect athletic complement to running because the
two sports are so different. "Just about everything about swimming is
exactly the opposite from running in terms of stresses on the body," says
runner-turned-triathlete Joe Friel, author of The Triathlete's Training
Bible (VeloPress, 2004). "Swimming tends to stretch you out, whereas running
tends to compress y... 阅读全帖 |
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d**y
发帖数: 18174 | 19 小孩锻炼的多，应该能再高一些。
你可以跟他的教练确认一下是strokes counting both arms还是stroke cycles？
strokes和laps这两个词，不同的教练用法不一样，非常混乱。这里比较合理的假设是
17-18 strokes, counting both arms。
你的孩子现在的100米pace是66s。这个速度的sweet spot在哪里？按照美国成人运动员
的统计，strokes per minute下限是64，也就是一个length（25Y）不要低于16个
strokes。当然真游100米，你的孩子应该没这么快，就算75秒，查下来strokes per
minute的下限是60左右，折算到25Y的length：75 strokes * 0.9 / 4=17。划频不能比
这再低了。
但是别忘了，这个sweet spot是按照成人身高和力量来统计的。
所以，给出17-18的目标，有点过低了。给个19到20是合理的，如果你的孩子已经挺高
；甚至保持21也是可以的。
如果孩子真的能达到17-18，就认为划水效率提高了，速度自然也会提高，我认为这种
情况... 阅读全帖 |
|
d**y
发帖数: 18174 | 20 小孩锻炼的多，应该能再高一些。
你可以跟他的教练确认一下是strokes counting both arms还是stroke cycles？
strokes和laps这两个词，不同的教练用法不一样，非常混乱。这里比较合理的假设是
17-18 strokes, counting both arms。
你的孩子现在的100米pace是66s。这个速度的sweet spot在哪里？按照美国成人运动员
的统计，strokes per minute下限是64，也就是一个length（25Y）不要低于16个
strokes。当然真游100米，你的孩子应该没这么快，就算75秒，查下来strokes per
minute的下限是60左右，折算到25Y的length：75 strokes * 0.9 / 4=17。划频不能比
这再低了。
但是别忘了，这个sweet spot是按照成人身高和力量来统计的。
所以，给出17-18的目标，有点过低了。给个19到20是合理的，如果你的孩子已经挺高
；甚至保持21也是可以的。
如果孩子真的能达到17-18，就认为划水效率提高了，速度自然也会提高，我认为这种
情况... 阅读全帖 |
|
l******l
发帖数: 2651 | 21 Diet Soda Tied To Stroke Risk, Though Reasons Still Unclear
Source:
http://www.huffingtonpost.com/2011/02/09/diet-soda-tied-to-stro
LOS ANGELES — It's far from definitive proof, but new research raises
concern about diet soda, finding higher risks for stroke and heart attack
among people who drink it everyday versus those who drink no soda at all.
The beverage findings should be "a wakeup call to pay attention to diet
sodas," said Dr. Steven Greenberg. He is a Harvard Medical School
neurologist ... 阅读全帖 |
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p****y
发帖数: 23737 | 22 Recently, there has been a renewed interest in vegetarian diets. Today there
are countless books, cookbooks, and magazine articles promoting vegetarian
diets and providing guidance for those who wish to follow a meatless diet. A
Short Historical Perspective on Vegetarian Diets
In the past, many viewed vegetarianism as strange and faddish but
appropriately planned vegetarian diets are now recognized by many, including
the American Dietetic Association, as being nutritionally adequate, and
providi... 阅读全帖 |
|
p****y
发帖数: 23737 | 23 http://www.vegetarian-nutrition.info/updates/vegetarian_diets_health_benefits.php
Recently, there has been a renewed interest in vegetarian diets. Today there
are countless books, cookbooks, and magazine articles promoting vegetarian
diets and providing guidance for those who wish to follow a meatless diet. A
Short Historical Perspective on Vegetarian Diets
In the past, many viewed vegetarianism as strange and faddish but
appropriately planned vegetarian diets are now recognized by many, includi... 阅读全帖 |
|
w********2
发帖数: 632 | 24 An air-cooled rotary that powered a number of successful World War I
aircraft
History
The rotary engine is unique in that, unlike fixed radial engines, it has a
stationary crankshaft bolted to the firewall, with everything else (
cylinders, crankcase, propeller) all rotating. The rotary in its original
form is extinct, with the term now being used to describe "Wankel" rotary
combustion engines such as those built by Mazda. Though automotive and
motorcycle rotaries were built in the United State... 阅读全帖 |
|
发帖数: 1 | 25 In a case of an old idea gaining new legs, Achates Power says it expects the
first commercial use of its unique two-stroke, opposed-piston design to
occur by 2020, following an initial in-vehicle demonstration in early 2018.
It’s based on a design that’s well over 100 years old.
Achates, aiming to power both heavy-duty trucking and passenger vehicles,
won’t say which will be the first to hit the streets using its technology,
but much of the company’s development work so far appears tilted toward... 阅读全帖 |
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i*********5
发帖数: 19210 | 26 【 以下文字转载自 Tri 讨论区 】
发信人: ironman2015 (1/2 ironman), 信区: Tri
标 题: 降级到第二泳道了
发信站: BBS 未名空间站 (Mon Sep 26 22:34:30 2011, 美东)
今晚开始秋季Masters Swimming训练，跟夏季不一样的是这是中高级班，没有
beginners，所以我主动降级到了第二泳道。结果发现自己是这道里最慢的。:-(
今晚学到的最重要的是：Relax！
最后15分钟了，教练（前Kona course record holder 1993）说给大家来点儿轻松的。
什么是轻松的了，就是少呼吸。要少呼吸游完一条道（25米），就一定要放轻松。
先是每5个strokes呼吸一次游25米，然后加到每7个strokes，每9个strokes，每11个
strokes，每13个strokes，最后是不呼吸游完整个25米。
结果发现真是呼吸越少，就越能注意你的stroke，越放松，效率越高，stroke count越
低。我从开始大于20个strokes到后来小于20个strokes。
最后的最后是让在水里屏住呼... 阅读全帖 |
|
j*****j
发帖数: 290 | 27 From http://www.swimsmooth.com/exhalation.html
Breathing Technique - Exhalation
you know your problem? you keep it all in!
Also see our related articles: Freestyle Breathing Overview and Tips and The
Power of Bilateral Breathing.
Important!
Don't forget to breathe. Doctors recommend it.
Very few novice swimmers exhale properly into the water.
Nearly all intermediate swimmers think they are exhaling correctly - at
least, that's what they say when we ask them. Do they? Very few do.
Even amongst... 阅读全帖 |
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i*********5
发帖数: 19210 | 28 http://www.osbmultisport.com/articles/strokeanalysis2.html
One of the main points we make in our Powerstroke® clinics is the
emphasis we place on high elbow catch / early vertical forearm (EVF) during
the catch and pull phase of the stroke. Note that you can have a high elbow
catch that does not start particularly early in the stroke – hence the
additional name of early vertical forearm.
“Early” means that the elbow begins to rotate upward / hand and forearm
downward or perpendicular relat... 阅读全帖 |
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i*********5
发帖数: 19210 | 29 http://www.osbmultisport.com/articles/strokeanalysis2.html
One of the main points we make in our Powerstroke® clinics is the
emphasis we place on high elbow catch / early vertical forearm (EVF) during
the catch and pull phase of the stroke. Note that you can have a high elbow
catch that does not start particularly early in the stroke – hence the
additional name of early vertical forearm.
“Early” means that the elbow begins to rotate upward / hand and forearm
downward or perpendicular relat... 阅读全帖 |
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W*******l
发帖数: 1868 | 30 看看你的200米打水是什么水平。
8 TIPS FOR FASTER KICKS
Swimming World Magazine, Sep 2005 by Goldsmith, Wayne
The role of kicking in swimming is a matter for study, research, debate and
discussion, but one thing we do know: better kicking equals better swimming.
There are eight key elements that will help improve your kick:
1 LOOSE LEGS
The key to fast swimming and fast kicking is to stay loose and relaxed.
Too many swimmers think fast kicking means hard kicking. The great swimming
coach, Yoda, once said, "Unl... 阅读全帖 |
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m****z
发帖数: 978 | 31 Every 2nd Stroke on your favorite side
First of all, I think if you swim long distance, breath on 2nd stroke is
totally fine and even preferred, since you got maximum Oxygen and lowest CO2
build up. It goes hand and hand with long stroke.
However, if you always breathe on one side (Right), it tends to create under
rotation for your non-breathing side (left arm/shoulder) and maybe over
rotation for your breathing side (Right)
Every 4th stroke
Even you breathe on the same side, but you tend to be... 阅读全帖 |
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i*********5
发帖数: 19210 | 32 今晚开始秋季Masters Swimming训练，跟夏季不一样的是这是中高级班，没有
beginners，所以我主动降级到了第二泳道。结果发现自己是这道里最慢的。:-(
今晚学到的最重要的是：Relax！
最后15分钟了，教练（前Kona course record holder 1993）说给大家来点儿轻松的。
什么是轻松的了，就是少呼吸。要少呼吸游完一条道（25米），就一定要放轻松。
先是每5个strokes呼吸一次游25米，然后加到每7个strokes，每9个strokes，每11个
strokes，每13个strokes，最后是不呼吸游完整个25米。
结果发现真是呼吸越少，就越能注意你的stroke，越放松，效率越高，stroke count越
低。我从开始大于20个strokes到后来小于20个strokes。
最后的最后是让在水里屏住呼吸3秒后，从水里出发不呼吸游25米。也做到了，并且
stroke count最少。 |
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i*********5
发帖数: 19210 | 33 【 以下文字转载自 Swimming 讨论区 】
发信人: ironman2015 (1/2 ironman x3), 信区: Swimming
标 题: high elbow catch / early vertical forearm (EVF)
发信站: BBS 未名空间站 (Fri Dec 28 09:51:33 2012, 美东)
http://www.osbmultisport.com/articles/strokeanalysis2.html
One of the main points we make in our Powerstroke® clinics is the
emphasis we place on high elbow catch / early vertical forearm (EVF) during
the catch and pull phase of the stroke. Note that you can have a high elbow
catch that does not start particularly early... 阅读全帖 |
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a*****a
发帖数: 19262 | 34 有关legal stroke我刚刚查了这个网站
http://usaswimming.org/DesktopDefault.aspx?TabId=1696
THE FOUR STROKES
The four competitive swimming strokes are freestyle, backstroke,
breaststroke and butterfly. The combination of all four strokes is called
individual medley.
In freestyle events, the competitor may swim any stroke. The stroke most
commonly used is sometimes called the crawl, which is characterized by the
alternate stroking of the arms over the surface of the water surface and an
alternating (up-and-d... 阅读全帖 |
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a*****a
发帖数: 19262 | 35 有关legal stroke我刚刚查了这个网站
http://usaswimming.org/DesktopDefault.aspx?TabId=1696
THE FOUR STROKES
The four competitive swimming strokes are freestyle, backstroke,
breaststroke and butterfly. The combination of all four strokes is called
individual medley.
In freestyle events, the competitor may swim any stroke. The stroke most
commonly used is sometimes called the crawl, which is characterized by the
alternate stroking of the arms over the surface of the water surface and an
alternating (up-and-d... 阅读全帖 |
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b****a
发帖数: 300 | 36 1. The Bounce
Before even beginning the testing of the ball I performed a bounce test to
compare the bounce of the DHS 3 star plastic ball to the Butterfly 3 Star
Celluloid ball. The plastic ball has a lower bounce peak and is less
responsive on the table surface, this is because of the slightly larger size
of the new ball and also it's plastic material composition.
2. The Shape/Roundness
I also did a spin test with both balls. With the prototype plastic balls
there were a lot of issues with how... 阅读全帖 |
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s**a
发帖数: 1995 | 37 TI关于划水和蓄力有段论述，不是很明白。看看大家有没有兴趣共同参详一下。
简述版本：
TI先讲了网球、高尔夫、棒球的击球发力方式：利用躯干转动来蓄能，就像load
spring一样，然后再利用躯干带动肩、肩带动大臂、大臂带动小臂这样层层加速达到最
大击球力量的。说游泳也应该这样最大化划水力量。
下面这两段话讲了怎样利用转体的时候来“蓄能”，但是我在理解上还是有困难，不是
很明白和击球的转体相似在哪里了。
这段话是讲游泳时的：
Same thing in your stroke. Your hand enters the water and reaches forward
just beneath the surface— and I mean reaches, like stretching for something
barely beyond your fingertips on a high shelf. Next, with your hand as far
out as it can possibly go and your body rolling onto its sid... 阅读全帖 |
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m****z
发帖数: 978 | 38 Here are some of my experiences on over gliding. I am a newbie as well so
this could be totally wrong or wrong for people that have different issues
than me.
I love TI program to death. However, I made some mistakes while doing TIs,
because TI is my first training book/ “program” and I was doing it with no
coaching and not very many prior knowledge about freestyle.
My over-gliding issues are mainly my own fault, not TI’s fault. IMO, TI
guys may tend to become over glider.
Some of the fundame... 阅读全帖 |
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m****z
发帖数: 978 | 39 Here are some of my experiences on over gliding. I am a newbie as well so
this could be totally wrong or wrong for people that have different issues
than me.
I love TI program to death. However, I made some mistakes while doing TIs,
because TI is my first training book/ “program” and I was doing it with no
coaching and not very many prior knowledge about freestyle.
My over-gliding issues are mainly my own fault, not TI’s fault. IMO, TI
guys may tend to become over glider.
Some of the fundame... 阅读全帖 |
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d*g
发帖数: 16592 | 40 看大家讨论三个4.5顶尖高手的game，觉得非常有趣，低手我也来凑个热闹。
这三个高手都不是有童子功的stroke，相比来说，黑导练的底线童子功的stroke比这三
个人都好，就是说在静态，或者脚步到位的情况下，黑导的底线stroke最棒。
不过这三个人强在不比童子功弱的步伐上，三个人各有各特点，都比黑导要强。所以在
同一水平比赛中，黑导有时候使用不出来自己优势的stroke，而其他人因为脚步到位率
高，所以平均击球效果不比黑导的差。我感觉这三个人的步伐都是从其他体育项目中培
养的运动感觉，加上良好身体素质带来的。体育很多相通性，没有童子功的stroke，可
是却有童子功的步伐，（我个人感觉，足球，羽毛球，击剑等运动上有基础的，比从小
练网球的在步伐上童子功还要好不少）这个是不少人忽略的，却是网球里最重要的，比
静态的stroke是不是合理还重要。
预判上，这些人有着比很多童子功的人还好的预判，而且能很快找到对方击球pattern
，就是说这些人的头脑比很多有童子功的人都要强，这也是他们能在这个水平里抗衡的
原因之一。感觉黑导这方面稍弱一点，不是头脑不行，是太focus在stroke的... 阅读全帖 |
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A*******s
发帖数: 9638 | 41 I am aware of the study. Thanks for the link.
Her CHA2DS2-vasc score is 4, same as HAS-BLED Score. Risks for stroke and
bleeding are 2% and 8% respectively. But we can not only use the numbers.
These numbers tell us she is on high risks for stroke as well as bleeding.
She was not started on OAC after being found to have A-fib. After she had
the stroke, she was not started on heparin either. But on the 2nd day of stroke, she had
the 2nd emboli to right arm. Then she was started on heparin. Aft... 阅读全帖 |
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A*******s
发帖数: 9638 | 42 I am aware of the study. Thanks for the link.
Her CHA2DS2-vasc score is 4, same as HAS-BLED Score. Risks for stroke and
bleeding are 2% and 8% respectively. But we can not only use the numbers.
These numbers tell us she is on high risks for stroke as well as bleeding.
She was not started on OAC after being found to have A-fib. After she had
the stroke, she was not started on heparin either. But on the 2nd day of stroke, she had
the 2nd emboli to right arm. Then she was started on heparin. Aft... 阅读全帖 |
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发帖数: 1 | 43 https://youtu.be/3P1JrTe24AY
It would be a mistake to count out the internal-combustion engine as
yesterday's technology, soon to expire in a puff of exhaust gas.
Electrification is coming, but meanwhile engineers have offered more
innovation for the venerable gas engine in the last three years than they
did in the previous 20. The result is 40 mpg on the highway, from four-
cylinder power plants with the same performance as older V-6s or even V-8s.
Achates Power typifies the new thinking. Its t... 阅读全帖 |
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h******2
发帖数: 1498 | 44 平时总是看到有soccer mom在旁边的lane，游得也不怎么费劲，可是就是比我快，
stroke count比我少，百思不得其解。按理说，我的endurance，shoulder strength，
和stroke 的form不必她们差很多啊。
今天游长距离，忽然开窍了。
这个stroke的质量，其实关键不是在胳膊上。高肘划水等等stroke 的要领，你可以把
那个动作做出来，但是能不能使上劲，完全是另一回事。我的感觉是，整个躯干的姿态
首先要调整好，然后stroke才能使上劲，同时保持streamline，否则，就算stroke的
form再好，也是花拳绣腿。
打个比方吧，比如你要推一辆停在那里的汽车，随便往车后面一站，伸手就推，肯定使
不上劲。非得找到一个合适的角度，大腿，小腿，上身，全部align好了，腿蹬地的力
量能够从整个躯干的轴心穿过去，才能使上劲。其实很多技巧型的运动，都需要把身体
的position set up好了以后再发力。比如网球，不是靠胳膊，而是靠腿和腰来打球；
滑冰，靠髋部和移动重心来驱动。
对游泳的stroke来说，这个stroke开始之前，整个身体po |
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i*********5
发帖数: 19210 | 45 How Champions Do It
http://coachsci.sdsu.edu/swim/champion/evans.htm
JANET EVAN'S FULL STROKE AT 625 m OF HER 800 m GOLD MEDAL SWIM AT THE
BARCELONA OLYMPIC GAMES 1992
Each frame is .1 second apart. The swimmer breathes at the end of each right
arm pull.
Notable Features
Frame #1: This picture illustrates a feature of most top crawl-stroke
swimmers. The right arm entry is made at full stretch (no underwater gliding
) and is accommodated by a very linear posture in the total swimmer. The
uppe... 阅读全帖 |
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l********y
发帖数: 2295 | 46 Kawalee, don't mean to argue with you, but I think the stroke here means hx
of stroke, not acute management of stroke.
This is from uptodate:
The available evidence suggests that it may be reasonable to start or
intensify antihypertensive therapy in middle-aged or older patients who have
had a cerebrovascular event in the preceding two weeks to five years, who
are stable, and who have no contraindication to blood pressure lowering. As
noted above, the 2006 American Heart Association/American Str... 阅读全帖 |
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b******a
发帖数: 704 | 47 不是神经科的，只是在实习学习中，看到一些脑梗病人。 是非常不幸，也是很常见的
疾病。 控制高血压，高血脂，吸烟这些危险因素重要啊。这里的医生/医学生并不知道
具体的病情，什么样的症状和遗留的功能损害，所以最多只是提供一些建议。
肺炎是中风病人的常见并发症之一。 60% 是由于中风导致的吞咽功能失调，包括咽喉
肌肉的运动和感觉功能，或其他原因等等而导致的吸入性肺炎。 可能是吸入口咽的细
菌，也可能不是细菌，是化学物比如胃酸对肺部的刺激等。 如果是细菌感染，胸部X光
片应该可以看出。留深部痰做多次药敏选择抗生素应该能够找到合适的药物，如果是吸
入性肺炎，抗菌素是一线的clindamycin克林霉素，或ampicillin-sulbactam氨苄西林-
舒巴坦。头孢，环丙沙星等其他的抗菌素不是很推荐的。如果是化学性的或者气道阻塞
导致的肺炎，抗菌素是不管用的，只是支持肺部的呼吸功能的治疗。所以，根据病人的
具体情况，看他到底是那种原因导致的肺炎，好治疗和预防。
的确如A医生说的，增加血液的粘稠度，比如脱水，蛋白过多，没有抗凝治疗，还会导
致缺血性脑梗发作。需要找到导致脑梗发生的原因，预防再次... 阅读全帖 |
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i*********5
发帖数: 19210 | 48 SWOLF is time + strokes, the lower the better.
in my case, my best SWOLF this morning is 38 (28 seconds + 10 strokes) for
25 meter length.
the strokes used here is only one arm, sometimes SWOLF is time + stroke
count from both arms. but the Garmin Swim can only record the stroke count
of the arm the watch is worn, so only one arm's stroke count is used.
yours is 40? that's low, but your pool length is shorter than mine, right?
Here's Garmin's official definition:
SWOLF is derived from combining ... 阅读全帖 |
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G**U
发帖数: 5492 | 49 Rating
1.0
This player is just starting to play tennis.
1.5
This player has played a limited amount but is still working primarily on
getting
the ball over the net; has some knowledge of scoring but is not familiar
with
basic positions and procedures for singles and doubles play.
2.0
This player may have had some lessons for one or two years but needs on-
court
experience; has obvious stroke weaknesses but is beginning to feel
comfortable
with singles and doubles play; may be a member... 阅读全帖 |
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