d**y
发帖数: 18174 | 1 他的衣服貌似不错，我还没这个牌子的湿衣。可惜太贵。不知道比xterra怎么样？
Gear Review: blueseventy Helix Wetsuit
Wetsuits are one of the larger gear investments a budding triathlete can
make; behind a bike and/or race wheels (if, of course, you fall into USAT's
median income range of approximately $108,000), it is likely a wetsuit will
be your most expensive piece of gear.
With that kind of money on the line, then, it stands to be prudent when it
comes to selection. Much like when it comes to proper triathlon bikes and
running s... 阅读全帖 |
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d**y
发帖数: 18174 | 2 基于目前我对TI的了解，TI在效率方面稍微有点走极端。存在太长的两条手臂都不划水
的时间，腿打水频率据说也应该降低。如果全盘学习TI，未必最好。下面分情况讨论TI
的适用性，并就怎样学习应用TI理念说说我的看法。敬请指正。
情况1：专业短距离。短距离想冲过4a，冲击podium，不能有无动力滑行时间。总有一
条手臂在划水，并且必须高频有力打水。TI不行。
情况2：业余短距离。不少人增加划频，提高打水频率，速度反而下降。TI的减阻理念
很有好处，但是我认为应该每练一段就尝试提高划频，看速度是否能提高，然后结合水
下视频慢放，依照TI的减阻理论分析原因。换句话说，用TI的练法练减阻，每过一段时
间加划频；增加划频的办法和传统方法无异。
情况3：专业长距离。先说高频游法，Lotte Friis，43 strokes/50m，88 strokes/
minute。即使低频的如孙杨，巡航阶段每50m用28个strokes，每分钟62个strokes，
distance per stroke仍然比不上TI。
情况4：业余长距离，或者年纪尚小还在上升阶段的小孩子游长距离。swim smooth的观
... 阅读全帖 |
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d**y
发帖数: 18174 | 3 家长们对小孩转身期待很高。为了能快速转身，有四个环节，一个注意。
第一，转身的时机和离壁的远近选择。转身前的最后一个stroke，甚至倒数第二个
stroke要略做调整，确保蹬壁最有力量。比如，仰泳转身，刚开始见旗子用strokes-2
计数，后半程可以strokes-1计数。根据自己情况反复练。
第二，身体翻转要快。touch turn靠最后一次stroke出水尽量高一些，用力push墙壁，
加上用力挥手，尽快翻转上身；下身团紧，近可能快地在上身带动下去蹬壁。flip
turn必须要打好最后一次蝶腿抬臀，在片刻的大腿挂水阶段，头在水下迅速找脚。大腿
打开蹬壁要恰到好处，判断标准是蹬壁时，脚和屁股基本对称分布在身体平面的两侧。
我看的视频里，大部分小孩打开太早，大概是担心蹬不到墙壁。后果就是蹬壁点太靠上。
第三，蹬壁。前面说了，脚和屁股对称分布在身体平面的两侧，这样可以用上大腿前后
肌肉的力量，蹬壁之后身体仍然平直。如果蹬壁点太靠上，就只能用上大腿正面肌肉；
另外，蹬壁之后，身体会扭曲成弧形，滑行阻力比较大。
第四，在规则允许范围内最大化水下蝶腿的优势。侧、俯、仰三种姿势的水下蝶腿都要... 阅读全帖 |
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d**y
发帖数: 18174 | 4 横坐标30之后，有一个1:23左右的点，followed by a spike，是garmin判断失误，还
是休息？
接下来大概开始游400。缓慢下降到2:15，然后有2:30的第一个cliff，恢复之后出现2:
35的第二个cliff
但是第二个cliff只持续了50米，迅速回升到2:15。
在接近length=50的时候，为什么又有一个spike？停下来了？或是游的过程当中garmin
误把一次大力划水认为是push off？对应下图strokes，似乎是garmin判断失误。
接下来是2:25，慢慢是第三个cliff，又是2:30。
最后50米又提上来一些，最后25米还能达到2：10以内。
再看下图，看起来你并没有走恒频加力，最后冲刺再加频这条路径。好处是cliff不会
太深，恢复也比较快。坏处是你并没有真的到达无氧边缘，根据这些数据，你还是不知
道真正的无氧cliff有多深，多长时间可以恢复。而且划频来回变，节奏容易混乱，
stroke cycles=14和stroke cycles=9的配合区别很大，你平时可能练习14个stroke
cycles不够，在这个频率下不算熟练。再... 阅读全帖 |
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w********0
发帖数: 245 | 5 参加了master swim, 前几天在上课的时候，发生了一个小冲突，觉得自己解决得不好
，打算问这里的高手，是否有更好的的解决办法。
上课时候有6个队员。 上半段是练butterfly stroke, 所以大家都先游lane 1, 然后从
lane 2游回来。
然后开始练breast stroke, 1st round, 大家还是先游lane 1, 然后从lane 2游回来。
然后教练说了要改进的地方，叫大家把头埋在水里练breast stroke, 这次领头的游
lane 1, 然后她又从lane 1 游回来。我是倒数第二个游，当我开始游得时候，领头的
队员还没游到尾，所以我不知道领头的还从lane 1 游回来。而且教练也没说说什么。
而且我需要把头埋在水里，根本没看到领头的lane 1从lane 1游回来，所以手碰到了第
一个，但是我们都立即意识到了，就停下来，然后继续了。此时教练也没有说什么做什
么，然后排在第二个的队员就对我大声吼叫和责骂我，说我怎么搞得？ 我说sorry, 然
后完成后续的泳程。
当最后大家停下来，听教练点评的时候，大家都指责我，说我太危险了，而且说
but... 阅读全帖 |
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r*******n
发帖数: 131 | 6 首先我觉得，大部分人都过分关注高肘了。主要因为这个最容易看出问题，感觉最容易
练。但自由泳是一个整体身体协调的过程，先身体平衡，转身发力，手腿timing，最后
才是高肘的catch,pull。前面的没练好，过分注重练高肘没有太大帮助
当然性别，身高有别，但我觉得平时游长距离，不能游到平均1:45/100yards，说明整
体的姿态和节奏有问题，高肘并不是最大的短板
我现在觉得最重要，经常练的，是两次腿，当然也有很多对应的drill。主要就是通过
打腿initiate身体的rotation，并且在这个过程中完成同侧手臂的catch和另一侧手臂
的extention。同时打腿还要注意不要drop lower body，保持屁股在水面。这个动作练
了快半年了，才刚刚觉得偶尔能感受到某个point，但还是做不好
再说一个标准吧，有garmin swim的话可以参考一下
游长距离的时候，average stroke rate应该在1.7-1.9s/cycle，就是说一分钟左右手
应该各划30多下，否则就是over gliding了。关键在于recovery要快，pull完了马上
entry。还... 阅读全帖 |
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i*********5
发帖数: 19210 | 7 What Can We Learn from Emperor Penguins and Sun Yang?
http://theraceclub.com/aqua-notes/what-can-we-learn-from-empire
July 13, 2015 2 min read original
The other day I was doing my swim at Founder’s Park in Islamorada, when
Chris, a marine researcher from Key Largo, swimming in the lane next to me,
asked me if I had ever seen a documentary on Emperor Penguins in the
Antarctic. I hadn’t.
“They have this amazing ability to sequester air under their feathers”, he
explained. “When they are swimm... 阅读全帖 |
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S******8
发帖数: 24594 | 8 3500y/79'48"
1679 strokes
12 strokes/length
21 strokes/min
swolf: 46
calories: 579
100y/1'56"
45 strokes
11 strokes/length
swolf: 40 |
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S******8
发帖数: 24594 | 9 3500y/79'48"
1679 strokes
12 strokes/length
21 strokes/min
swolf: 46
calories: 579
100y/1'56"
45 strokes
11 strokes/length
swolf: 40 |
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b*********s
发帖数: 6757 | 10 终于静下心看了lz的和其他大侠们的意见。我非常认同 WatermanCT 的意见, 当我看时
，这也是我想说的意见之一(he beat me to it). it's always easier to move
forward to hit a ball than falling back.
stroke 而言， 不容易说， 你有些球的stroke 有问题是因为你站太前， 对手球深，
你一时来不及而造成的， 特别是反手。 有几个正手打得很不错。 准备最好能够再早
些。 要看stroke的话， 这个角度不是最佳。。。 真要analysis 动作的话, 你换个
camera 角度， 让人喂球。 不过lz的stroke 不是什么特别大的问题。
cross court 问题， 用 semi-western, western grip, 打cross court 都有些
tricky. 看了你几个cc, especially on the run, 一个普遍的问题(including
myself),是stance. 你基本是右脚在左脚后方relative to the baseline.... 阅读全帖 |
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K****D
发帖数: 30533 | 11 其他部分同意，但是你理解错了偶这篇的主要论点。
偶这篇不是在说game比stroke重要，而是说每个人怎样的stroke才是最优的，某种
程度上是由身体条件决定的，而不是一味朝着“标准”看齐。
也就是说偶觉得A拉现在这种stroke才是最优的，而不是改成莎娃那种。现在这种
stroke可以最大限度发挥她任意变线并且隐蔽不失误的特长。如果改成long swing，
long follow through，将导致准备、恢复时间都变长，从而更仓促。
同理，Serena不盯球也是由身体条件决定的。她不盯球都已经是No.1暴力女了，还
盯球作甚？省下0.05秒跑动才是正理。
再比如Santoro，一普通WS大叔，你真觉得他如果不用诡异打法能对Safin保持H2H
绝对优势？Yes, Santoro的正常strokes也是pro level, 但是也就一challenger
level.
关键就是这个“标准”本身就没有定论。历史上标准都变了很多次了。
偶等会儿新回一贴说明这个问题。 |
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f****y
发帖数: 2612 | 12 Vitamin E is LIKELY SAFE for most healthy people when taken by mouth or
applied to the skin. Most people do not experience any side effects when
taking the recommended daily dose, which is 15 mg.
Vitamin E is POSSIBLY UNSAFE if taken in high doses. If you have a condition
such as heart disease or diabetes, don’t take doses of 400 IU/day or more.
Some research suggests that high doses might increase the chance of death
and possibly cause other serious side effects. The higher the dose, the
greate... 阅读全帖 |
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Y**u
发帖数: 5466 | 13 ☆─────────────────────────────────────☆
TrueStory (不是幸福的坑不挖) 于 (Fri Oct 14 11:10:12 2011, 美东) 提到:
This talk is about the chemical, Dopamine, that people feel in ecstasy.
http://www.youtube.com/watch?v=axrywDP9Ii0
It makes people want, without even knowing what is to be wanted. It is a
major chemical that people show in infatuation or new relationships. The
speaker also mentions its similar effect in some people's religious
pursuit.
When this chemical fades, the rosy glasses fall, and then t... 阅读全帖 |
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O******e
发帖数: 4845 | 14 Researchers convince people they have three arms--then threaten one with a
knife [Video]
http://www.scientificamerican.com/blog/post.cfm?id=need-an-extr
A knife-wielding researcher is bearing down on your right hand梠r is it
your hand? You see three arms in front of you, and you can feel your pal
ms dampen with fear-induced perspiration. But is it your right hand the
kitchen knife is plunging toward, or a false, rubber right hand?
The dilemma might sound ridiculous, but tell that to the 154 healt... 阅读全帖 |
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d*********n
发帖数: 18 | 15 Confusion case: O CFDP P ADL, IADL, TIA/stroke, depression, DM, thyroid,
normal pressure hydrocephalus, PAMHUGSFOSS
insulin induced hypoglycemia
Electrolyte abnormalities
Vitamin B12 deficiency
Medications
TIA
Multi-infarct dementia
Chronic subdural hematoma
Alzheimer’s dementia
Normal pressure hydrocephalus
Intracranial tumor
Neurosyphilis
Depression
Hypyothyriodism
DDx Confusion
DEMENTIA
D-Diabetes /Dementia/ Drugs
E-Epilepsy
M-Migraine/Mult Infarct Dementia
E-Ethanol (withdrawl / Toxicity)
N... 阅读全帖 |
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A*******s
发帖数: 9638 | 16 来自主题: Medicalpractice版 - 阿司匹林 现在的阿司匹林好像跟维生素一样广泛使用。 今天有个病人跟我说，反正没有什么副
作用，吃了可以防止心脏病和中风。 没有副作用是不正确的，当然小剂量应该没太大
问题。 问题是什么人该吃，什么人不该吃？吃了又怎么样？这个问题肯定是仁者见仁
，智者见智。
对中风的预防，我主张有症状的病人服用， 比方说TIA和stroke病人。 但如果临床上
病人有高风险发生中风，比方说众多的中风危险因素以及MRI的发现，我会使用阿司匹
林。 其他没有症状的病人，我是反对使用的，因为阿司匹林还是有副作用的， 而且没
有足够证据证明ASA可以预防原发中风。
对心血管医生来说，他们有他们的标准，病人使用阿司匹林是为了预防冠心病，与中风
预防无关。 Garland或其他心脏病医生可以谈谈你们的使用原则。
下面是一些关于ASA的使用guidelines：
1. The use of aspirin for cardiovascular (including but
not specific to stroke) prophylaxis is recommended
for persons whose risk is s... 阅读全帖 |
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r********a
发帖数: 139 | 17 呃。。不是一直在讨论低转速？
我大概估算了一下（其实是非常粗略），对于一台容积，压缩比都一定的引擎。
首先做工冲程近似绝热，假设转速够低，爆炸期间中活塞运动可以不记，那么在这个冲
程中任意时刻，piston face上的压强跟stroke的lambda次方成正比，这里lambda是气
体的比热容比。压力就等于这个压强乘活塞面积（bore的平方），由于容积固定了，最
后的结果是压力跟stroke的（lambda-1)次方成正比（水蒸气和二氧化碳的lambda值都
是1.2左右）
注意这里的压力不是平均压力，计算扭矩的时候还要积分求平均，但是大致看起来平均
扭矩也应该随stroke增大。
这个只适用于转速很低的情况，越高偏差应该也越大。而且以上假定了压缩比一定，事
实上stroke越大，在保证压缩比一定的前提下换气效率就越低。所以大stroke的确能带
来低转速高扭矩，但是当转速升高之后扭矩的下降应该比大缸径的引擎明显。 |
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c*********r
发帖数: 19468 | 18
so, you're talking about thermal efficiency now?
only compression ratio and combustion duration really count here
longer stroke won't help
one more thing: longer stroke increase both side load & stroke (of course)
so, if the friction efficient is the same, the one with longer stroke will
lose more energy on friction
anyway, no matter how hard you try, you just can't make any higher peak BMEP
by only increasing the stroke
that only helps at lower engine speed
as I've mentioned, that is mainly re |
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w********2
发帖数: 632 | 19 The Gnome 7 Lambda was a French designed, seven-cylinder, air-cooled rotary
aero engine that was produced under license in Britain and Germany. Powering
several World War I era aircraft types it was claimed to produce 80
horsepower (60 kW) from its capacity of 12 litres (720 cubic inches)
although recorded figures are lower.[1]
Just under 1,000 units were produced in Britain, the majority (967) by the
Daimler Company of Coventry. A 14-cylinder variant was known as the Gnome 14
Lambda-Lambda.
In ... 阅读全帖 |
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发帖数: 1 | 20 回徐州已经好几天了，薇茵一直住在宾馆里，因为薇茵的父亲前几天说过，如果他见到
薇茵，一定会打断薇茵的一条腿……薇茵做错了什么事情，能让她的父亲说出这种绝情
的话？
只因薇茵改变了对公公的称呼，不叫他爸了，但孩子们仍然叫他爷爷……
1
贪杯的丈夫车祸去世，我满是绝望
我和丈夫槚秋是同乡，在外打工时相爱，就在我们确定结婚日期的第二个月，槚秋和几
个同乡在外吃饭时喝多了酒，回家的路上与路人因为擦碰这点小事而大打出手，结果造
成对方重伤，脾脏摘除，赔偿之后槚秋又被判了一年。
人进了监狱，准备结婚的钱也赔偿了，亲友全都劝我和槚秋分手，说槚秋喜欢喝酒，真
要和他结婚了，将来因为喝酒，还会生出别的事来。我父母不但让我和槚秋分手，还打
算去槚秋父母那里索要赔偿，被我拦住了。我父母问我是什么打算，分还是不分。我说
不分，给槚秋一次机会，相信他回来后会记住这一次教训的，而且我也会监督他。
槚秋出来后，我们没过多久就举行了婚礼。为了给槚秋找一条挣钱的路子，公公贷款买
了辆工程车，槚秋在外到处接活。我生下一对双胞胎，留在家里带孩子，日子过得辛苦
但甜甜蜜蜜的。公公是家里的顶梁柱，对槚秋的要求也很严格，带槚秋在... 阅读全帖 |
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l****z
发帖数: 29846 | 21 July 9, 2012 by Doug Johnson
From The Telegraph:
Hundreds die from strokes at weekends because of poorer NHS care: study
Hundreds of people die or suffer serious disability unnecessarily every
year because they suffer a stroke at a weekend when NHS care is poorer, a
major study has found.
Patients who are admitted to hospital at the weekend suffering from a
stroke are less likely to receive vital brain scans and more are more likely
to die than those seen during the week, a study of... 阅读全帖 |
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a******o
发帖数: 16625 | 22 丰田UR系列发动机每一个型号都很牛逼
Toyota UR engine
From Wikipedia, the free encyclopedia
Toyota UR engine
Toyota 1UR-FSE Engine.JPG
Overview
Manufacturer Toyota Motor Corporation
Production 2006–
Combustion chamber
Configuration DOHC 90° V8
Chronology
Predecessor Toyota UZ engine
The Toyota UR engine family is a 32-valve quad-camshaft V8 piston engine
series which was first introduced in 2006 as the UZ series it replaced began
phasing out. Production started with the 1UR-FSE engine with D4-S di... 阅读全帖 |
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a**********2
发帖数: 3726 | 23 Lol, you said what I wanted to say. Yesterday when I saw this I wanted to
reply but felt it would be too long and useless cuz we really can't change
their stereotype on medical professionals. So just let them be.
Just a simply reply to LZ:
1. She had stroke before, do you know the chance of second stroke is high?
She had syncope or near syncope symptoms, as a doctor, of course we have to
rule out new stroke. If she happened to have one and doctor didn't do MRI
and admit her, you probably are sui... 阅读全帖 |
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a**********2
发帖数: 3726 | 24 Let's see how you put here: "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"--- How was it diagnosed? MRI? If
MRI said so, then it is stroke. If not, then where did you hear that word?
I am sure that no doctor will make that diagnosis without imaging studies.
"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"---
from what you described here, MRI was at least done this time, and you also
mentioned that compared with 1-2 years ago, that means MRI was done even in
the first time, then if it showed up in MRI, then... 阅读全帖 |
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a**********2
发帖数: 3726 | 25 Calm down, don't panic. Most likely it is a TIA, although stroke cannot be
completely ruled out. But for management, it is not an emergency anymore at
this time (for ischemic stroke, tPA window period is 3.5 to 4 hours. For TIA
, statins and aspirin are all you need to do plus source investigation.
Unlikely
hemorrhagic stroke, you didn't mention HTN history and symptoms unlikely
improve so fast). You can go to ER to get an CT or MRI, but the most
important thing is CTA or MRA +/- ECHO to look fo... 阅读全帖 |
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m*****8
发帖数: 4059 | 26 【 以下文字转载自 Parenting 讨论区 】
发信人: miaomi8 (苗苗妈), 信区: Parenting
标 题: 转载：How to raise a bilingual child
关键字: 中文，双语学习
发信站: BBS 未名空间站 (Tue Jan 1 21:44:44 2013, 美东)
原文链接：
http://tamarindvillage.blogspot.com/2010/09/how-to-raise-biling
作者很多做法和国内一些早期阅读／识字教程的做法是一致的，比如小的时候重视认字
不强调写字，不太早教拼音直接认字等等
How to raise a bilingual child
We do not speak Mandarin at home, my kids speak only English and Cantonese.
Both of them are able to read long English novels like Charlotte’s Web by 5
years old, check out my blog a... 阅读全帖 |
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m*****8
发帖数: 4059 | 27 原文链接：
http://tamarindvillage.blogspot.com/2010/09/how-to-raise-biling
作者很多做法和国内一些早期阅读／识字教程的做法是一致的，比如小的时候重视认字
不强调写字，不太早教拼音直接认字等等
How to raise a bilingual child
We do not speak Mandarin at home, my kids speak only English and Cantonese.
Both of them are able to read long English novels like Charlotte’s Web by 5
years old, check out my blog about how I taught them to read in English :
http://tamarindphonics.blogspot.com/
My girl, now 7 years old, is also able to read long Chinese novels of about
15... 阅读全帖 |
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ET
发帖数: 10701 | 28 看几种情况，
如果是white stick 定义的区域，你的球从哪儿非出去，找不到，那是out of bounce
， 那要从击球的地方重新打，这叫disance+1 stroke penality, 有人直接就说2 -
stroke penality.
如果是红色旗杆定义的区域， 你的球大概从那里飞出去，找不到，就从飞出去的延长
线抛一个，1 stroke peanlity,
如果你觉得是在球道上，就是找不到了，就大概在你最后看见它的地方抛一下，1
stroke penality. 比如说，你开球时，击了1下，找不到了，下一次击打的时候，是你
第3下，有时说lay for 3.. |
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ET
发帖数: 10701 | 29 看几种情况，
如果是white stick 定义的区域，你的球从哪儿非出去，找不到，那是out of bounce
， 那要从击球的地方重新打，这叫disance+1 stroke penality, 有人直接就说2 -
stroke penality.
如果是红色旗杆定义的区域， 你的球大概从那里飞出去，找不到，就从飞出去的延长
线抛一个，1 stroke peanlity,
如果你觉得是在球道上，就是找不到了，就大概在你最后看见它的地方抛一下，1
stroke penality. 比如说，你开球时，击了1下，找不到了，下一次击打的时候，是你
第3下，有时说lay for 3.. |
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z*******a
发帖数: 2826 | 30 规定在这里：
‘Other than on the putting green, the timing of a player's stroke will
begin when it is his turn to play and he can play without interference or
distraction. Time spent determining yardage will count as time taken for the
next stroke.
。。。
A player is permitted 40 seconds to play a stroke. This 40 second time limit
includes the first to play from the teeing ground, from the fairway and
from around and on the putting green. Any player being timed, who exceeds
the allowed time to play a stro... 阅读全帖 |
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m****n
发帖数: 815 | 31 我觉得大家对gated stroke有些误解。用gated stroke并不是要推出draw的路线。推杆
挥杆速度那么慢，我觉得不可能能达到draw the putt的程度。
Gated stroke主要是最natural的一种挥杆，而且因为它最像普通挥杆。你们想想你们
打球的swing path也不是straight-back-straight-through，而是inside-square-
inside。而且我觉得要lag putt的时候不可能做到100% SBST。
从我个人的经验说，我以前挥杆总是outside-in，然后大slice。自从推杆换为gated
stroke之后，打球很少slice。 |
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r***6
发帖数: 401 | 32 Sure. Power stroke/overhand mean the same thing. You use your palm cover the
slide. Use four fingers to grab the slide tightly. Vigorously and
aggressivly pull the slide toward you. (power stroke) At the same time, the
hand holding the pistol grip can push forward if needed. Release the slide
grab at the end of stroke to let the slide cycle back.
Sling shot or thumb grab are the same thing too. (lz's method) This approah
is weak, not recommended.
A.K.A power stroke???
★ Sent from iPhone App: iR... 阅读全帖 |
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q********1
发帖数: 1480 | 33 来自主题: GunsAndGears版 - 我的刀疤 有人说刀疤能增加男人的雄性气概，这无从考证，但我新得的刀疤(SCAR）－Special
Operations Forces Combat Assault Rifle 确实是个很男人的东西。
一直想买个大口径步枪去打野猪打鹿，对栓动步枪不感兴趣（不过今后还是要买一枝
滴），目标是弄个“栓动的精准和半自动的持续打击力”兼而有之的枪，口径要大。最
初想到的是Browning的BAR 308，但不喜欢枪的样子，加之BAR虽是半自动，但弹匣四发
装弹，”持续打击“的力度太小，放弃。接着关注的AR 308有很多符合外貌控的要求，
打得也准，但整枪重量（还不包括光瞄等零碎）普遍在十磅以上，太重，我可不想背着
这样的枪去钻林子。最后范围集中到DMPS Lite Hunter 308 和Larue Predatar 7.62，
都是不到8磅的重量。 DMPS是很多人推荐的”实惠“枪，但我对其做工和可靠性都存
疑虑，最终拔了草；Predatar 无论从外貌、做工、准确性方面都符合我的要求，决定
要它了，却到处缺货，买新枪唯一的途径似乎就是从厂家定购，等12－18个月还不一定
能买到， 买枪我虽然不急，但这... 阅读全帖 |
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l********n
发帖数: 684 | 35 十月二十三日
Black Friday在好朋友家爬梯。他们家做的包子太好吃了,忍不住就吃多了。还有感恩
节和星期六的Potluck,一不小心,又胖了三磅。这样看来,在 cruise 上一周,启不是要
上个十来磅!
今天是练习双侧呼吸的第三天,还是两个字,缺氧。然后就是累。游着游着两条腿就越来
越沉,身体的阻力也就越来越大,左侧呼吸就更困难了。还好坚持游了两千 yards 。
200 yards warm up @ 5:16 breathing every 3rd strokes
300 yards breathing every 3rd strokes
10X50 yards @ 1:30 TT@ 1.05 breathe on right only
250 yards breathing every 3rd strokes
250 yards swim with snorkel practice HEC drill
350 yards breathing every 3rd strokes
200 yards cool down @ 4:20 TT @ 1.20 breathing... 阅读全帖 |
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l********n
发帖数: 684 | 36 十一月三十日
今天练习双侧呼吸有一些感觉了。我把 TT 设到1.50,这样慢慢地游。确保呼吸时
leading hand extending out 。尽量保持 streamline。
200 yards warm up @ 4:17 TT @ 1.20 breathing to right only
500 yards breathing every 3rd strokes with slow stroke rate TT @1.50
10X50 yards @ 1:30 TT@ 1.05 breathe on right only
400 yards breathing every 3rd strokes with slow stroke rate TT @1.50
250 yards swim with snorkel practice HEC drill
200 yards cool down @ 4:33 TT @ 1.20 breathing to right only
Total 2050 yards.
Total time 1:07:04 |
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l********n
发帖数: 684 | 37 十二月三日
本来应该星期五去游泳的,因为赶着看新台剧<<我可能不会爱你>>就把游泳放在星期六
了。今天下午又参加了儿子钢琴的 recital,一高兴就给儿子买两乐高玩具。结果晚饭
就吃晚了。只好不做 dry land warm up and streaches,直接就下水游泳了。也许是这个原因吧,今天游得
感觉不是很好。
200 yards warm up @ 4:36 TT @ 1.20 breathing to right only
500 yards breathing every 3rd strokes with slow stroke rate TT @1.50
10X50 yards @ 1:30 TT@ 1.05 breathe on right only
400 yards breathing every 3rd strokes with slow stroke rate TT @1.50
200 yards swim with snorkel practice HEC drill
200 yards cool down @ 4:56 TT @ 1.20 breath... 阅读全帖 |
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l********n
发帖数: 684 | 38 十月二十三日
Black Friday在好朋友家爬梯。他们家做的包子太好吃了,忍不住就吃多了。还有感恩
节和星期六的Potluck,一不小心,又胖了三磅。这样看来,在 cruise 上一周,启不是要
上个十来磅!
今天是练习双侧呼吸的第三天,还是两个字,缺氧。然后就是累。游着游着两条腿就越来
越沉,身体的阻力也就越来越大,左侧呼吸就更困难了。还好坚持游了两千 yards 。
200 yards warm up @ 5:16 breathing every 3rd strokes
300 yards breathing every 3rd strokes
10X50 yards @ 1:30 TT@ 1.05 breathe on right only
250 yards breathing every 3rd strokes
250 yards swim with snorkel practice HEC drill
350 yards breathing every 3rd strokes
200 yards cool down @ 4:20 TT @ 1.20 breathing... 阅读全帖 |
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l********n
发帖数: 684 | 39 十一月三十日
今天练习双侧呼吸有一些感觉了。我把 TT 设到1.50,这样慢慢地游。确保呼吸时
leading hand extending out 。尽量保持 streamline。
200 yards warm up @ 4:17 TT @ 1.20 breathing to right only
500 yards breathing every 3rd strokes with slow stroke rate TT @1.50
10X50 yards @ 1:30 TT@ 1.05 breathe on right only
400 yards breathing every 3rd strokes with slow stroke rate TT @1.50
250 yards swim with snorkel practice HEC drill
200 yards cool down @ 4:33 TT @ 1.20 breathing to right only
Total 2050 yards.
Total time 1:07:04 |
|
l********n
发帖数: 684 | 40 十二月三日
本来应该星期五去游泳的,因为赶着看新台剧<<我可能不会爱你>>就把游泳放在星期六
了。今天下午又参加了儿子钢琴的 recital,一高兴就给儿子买两乐高玩具。结果晚饭
就吃晚了。只好不做 dry land warm up and streaches,直接就下水游泳了。也许是这个原因吧,今天游得
感觉不是很好。
200 yards warm up @ 4:36 TT @ 1.20 breathing to right only
500 yards breathing every 3rd strokes with slow stroke rate TT @1.50
10X50 yards @ 1:30 TT@ 1.05 breathe on right only
400 yards breathing every 3rd strokes with slow stroke rate TT @1.50
200 yards swim with snorkel practice HEC drill
200 yards cool down @ 4:56 TT @ 1.20 breath... 阅读全帖 |
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a*********h
发帖数: 306 | 41 提高很快啊
我的stroke rate计算有误。如果象散步一样轻松, 大概是44stroke/分钟, 速度为1:08
／50米, 22 stroke/25米,手基本不用力, 象打太极拳。tempo的effort, 38 stroke／
分钟, 速度为 0:55／50米, 16 stroke/25米, 手得用上劲了。
count |
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a*********h
发帖数: 306 | 42 提高很快啊
我的stroke rate计算有误。如果象散步一样轻松, 大概是44stroke/分钟, 速度为1:08
／50米, 22 stroke/25米,手基本不用力, 象打太极拳。tempo的effort, 38 stroke／
分钟, 速度为 0:55／50米, 16 stroke/25米, 手得用上劲了。
count |
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s******l
发帖数: 1524 | 43 10/24/2012,周三.稍微减少了点休息时间,400米用了24分(停表晚了大概1分钟).
Garmin Swim记录的stroke不对啊,一会儿14次,一会6次,这还有个毛用?本来买Garmin
Swim主要就是想记录每次的stroke次数以检查动作效率.另外记录的游泳时间也不对,实
际游的时间肯定明显大于记录的8分5秒.
Summary
Distance: 400 m
Pool Length: 25.00 m
Time: 24:55
Avg Pace: 2:01 min/100 m
Avg Speed: 29.7 100m/hour
Details
Timing
Time: 24:55
Moving Time: 8:05
Elapsed Time: 24:55
Avg Speed: 29.7 100m/hour
Avg Moving Speed: 29.7 100m/hour
Max Speed: 48.3 100m/hour
Avg Pace: 2:01 min/100 m
Avg Moving Pace: 2:01 min/100 m
Best Pace: 1:15 m... 阅读全帖 |
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s******l
发帖数: 1524 | 44 10/24/2012,周三.稍微减少了点休息时间,400米用了24分(停表晚了大概1分钟).
Garmin Swim记录的stroke不对啊,一会儿14次,一会6次,这还有个毛用?本来买Garmin
Swim主要就是想记录每次的stroke次数以检查动作效率.另外记录的游泳时间也不对,实
际游的时间肯定明显大于记录的8分5秒.
Summary
Distance: 400 m
Pool Length: 25.00 m
Time: 24:55
Avg Pace: 2:01 min/100 m
Avg Speed: 29.7 100m/hour
Details
Timing
Time: 24:55
Moving Time: 8:05
Elapsed Time: 24:55
Avg Speed: 29.7 100m/hour
Avg Moving Speed: 29.7 100m/hour
Max Speed: 48.3 100m/hour
Avg Pace: 2:01 min/100 m
Avg Moving Pace: 2:01 min/100 m
Best Pace: 1:15 m... 阅读全帖 |
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i*********5
发帖数: 19210 | 45 'time between strokes' measurement in seconds is the time delay between one
stroke finishing at the back and the next one starting at the front.
这个时间超过了0.4"就算是overgliding, 不efficient了。
The Smooth Swim Type (e.g. Ian Thorpe or Sun Yang) have a very small gap
between strokes of 0.1 to 0.2 seconds. The Swinger (elite open water
swimmers and triathletes) have an overlap or tiny gap between -0.1 and 0.1
seconds, this stroke style is ideal for open water swimming where rhythm and
momentum are key. The... 阅读全帖 |
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i*********5
发帖数: 19210 | 46 【 以下文字转载自 Tri 讨论区 】
发信人: ironman2015 (1/2 ironman x3), 信区: Tri
标 题: 头的位置 - Choosing The Right Head Position For You
发信站: BBS 未名空间站 (Mon Mar 11 12:08:36 2013, 美东)
在过去两年的自由泳学习过程中，我听到的建议都是头要低，收下巴，眼睛看正下方，
“swim downhill”，头低了，腿就浮起来了，减少阻力。
直到上周跟高阳游泳时，他给我指出我的头太低了，造成头一上（换气）一下，反而增
大了阻力。建议我头可以高一些，水面刚好高过眉毛就行了，这样游开水时也更容易换
气。我说那腿会不会沉得更厉害？他说等你打水练出来了下身自然就浮起来了。
于是我试了试把头抬高些，看pool的斜前方，好像的确游得更流畅些。
回来上网搜索相关资料，找到这篇Swim Smooth的文章是支持他的观点的。
Choosing The Right Head Position For You
http://www.feelforthewater.com/2012/0... 阅读全帖 |
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i*********5
发帖数: 19210 | 47 Swim Smooth 流派
The Smoothest Swimming Technique In The World? Jono Van Hazel
Swim Smooth: What Is An Efficient Freestyle Stroke? Part 1
Swim Smooth: What Is An Efficient Freestyle Stroke? Part 2
Freestyle Stroke Analysis: Pro Triathlete Scott Neyedli
Swimming Technique: Jodie Swallow World Triathlon Champion
Interesting Freestyle Strokes: Hannah McKerchar |
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i*********5
发帖数: 19210 | 48 今早睡了懒觉，晚上去游泳池补游。
打水400米 + week 2 workout 3 1400米 = 共1800米
time 50:54
moving time 39:59
http://paceclub.speedousa.com/training/workouts/week-2-workout-
今天的收获是两边换气+二次打水100米能游进2分了。main set的9个100米后面4个都在
两分以内。希望以后比赛能用这个姿势巡航并且保持这个速度。
新的问题出来了，就是stroke count又上去了。昨天游N个200米时的stroke count都还
是11，今天游100米就升到14去了。是不是14 （56 strokes per minute）才是我的
optimal stroke rate？ |
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d**y
发帖数: 18174 | 49 what strokes do you swim?
front crawl（自由泳）
back stroke（仰泳）
breast stroke（蛙泳）
bufferfly stroke（蝶泳） |
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i*********5
发帖数: 19210 | 50 【游泳必读】 Bigfuzzydoug’s Ten Points to Swimming
http://www.mitbbs.com/article_t/Tri/31131367.html
check out point 6 & 7
7.) Never hold your breath! As soon as your face goes back under water,
start exhaling and continue until you empty your lungs. This does two
things - It allows you to completely blow off the carbon dioxide in your
lungs, thereby preventing the build-up of lactic acid in your muscles and
keeping you from getting tired. And it makes breathing faster and easier
because you're n... 阅读全帖 |
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