Over Rotating

管他是好咖還是怪咖,只要是咖就能發言,有任何技術問題,在此討論就對啦。

版主: norman

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normanding
文章: 80
註冊時間: 週一 9月 13, 2010 9:47 am

#21 回覆: Over Rotating

文章 normanding » 週六 4月 09, 2011 9:24 pm

Snowider:

對裝備那些文章,我從來不去看它的。 :face (50):

其他你的個人看法,是淺短的理解及荒繆的誤解。 :face (4):

這本書是專教高等級教練的高手推薦的書,雖年代舊了,但其中依然有值得學習的技術,這核心技術至今依然未改變過。 :face (330):

這是歐洲滑雪技術的教本,雖舊依然值得一學及參考,不然早該停版了。 :face (50):



taichiskiing
文章: 3756
註冊時間: 週六 2月 07, 2009 10:28 pm

#22 回覆: Over Rotating

文章 taichiskiing » 週六 4月 09, 2011 10:22 pm

normanding 寫:要看太極兄的動作,得先了解他的核心發力是從什麼地方開始,最後就是要從中挑出可以核對的動作。

我剪了兩段,請把焦點放在他的腰及他的雪板上面。

第一段:他的上半身就是所謂的過度旋轉,但這對他來講並不是問題,一般來講,過度旋轉會容易造成動作鎖死,轉彎死板,但這段影片的重點是在第三節,他的上半身已轉過度,但他的下半身卻能併腳繼續轉一個C彎,原因很簡單,他使用的是腹腰的力量帶動兩隻腳,加上一點點的EDGE就能完成他想要做的目標了,不需要大傾角,也沒有大打滑。如果他是真的所謂的過度旋轉,那他在這一段上半就沒能這麼順併腳彎一個C了。
觀察不錯。

YouTube - 太極兄的彎法


第二段:請把雙膝彎曲多少拿掉,因為interski拍的角度不好,所以很難比較清晰,但我們可以注意兩點,上半身的轉動帶動下半身,用慢動作看可發現,太極兄用上半身先轉時,他的動作有歸零,就是上半身面向雪板的指向,上半身轉動後,下半身馬上就跟著轉,在這一截上,他就沒有所謂的上半身過度旋轉的問題,所以這兩節影片要注意的焦點應要放在上半身帶動下半身這個動作上,把曲膝的部份拿掉,自然就能比對這個動作了。不過兩片放在一起,就會發現,interski的動作對太極兄來講,太用力了,不要那麼用力,放鬆一點,傾角就會淺一些,滑起來也舒服,畢竟我們不會時時刻刻都滑得這麼硬性吧?
對,他們的“轉彎滑雪”“拙力”太多。

YouTube - 太極兄的小彎

ps. 大家應該要體諒一下太極兄,對一個有長短腳的問題又要拿拐杖,還能併腳到這程度,真的不容易耶。如果以上分析有錯,也別吐我口水,僅提供個人看的角度而已。
對,一個跛子能滑的比一般人滑的都好已經証明了太極滑雪的正確、有效、及其功力。

:)
IS

taichiskiing
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註冊時間: 週六 2月 07, 2009 10:28 pm

#23 回覆: Over Rotating

文章 taichiskiing » 週六 4月 09, 2011 10:32 pm

skier888 寫:It is fine if this is the way you like to ski but don't claim it is better than xSIA or any other system.
For the same token, what makes you think that your XSIA is better than any other system, gapper?
There is a lot of mass in upper body. Not only you like to move it up and down but you also like to move it from side to side. You can considered it is high end in your system but this is low end in most other systems.
Not really, like most of things you've observed,“上下顛倒”, the human body has more mass at the lower body than the upper body (that's why you stand upright), so, your butt has more mass than you upper body, and that's where the "center of gravity" is, "if you don't move your butt, you don't go anywhere," and that's where you low end skiers get stuck.
You can achieve the same by not rotating your upper body that way. When you are able to keep you upper body stable and independent of lower body. There is tension/energy or torque stored when your lower body turns relative to the upper body. The lower body will spring back to align with upper body when the energy is released. This is more efficient and fast because it move much smaller mass.
Or say it the other way, rotating the upper body to lead the turn doing the same thing as your low end technique achieved but without all those jerky movements. Yup, that's where the "high end" comes in.
This is called 康特兒. If you are really good, you can have the lower body spring left and right with less effort. The key is the ability to hold and release this force at will. It is efficient but difficult to do. That is why high end skiing uses this technique. Over rotation is an easy technique and is considered a beginner technique because it is the default movement for a beginner and it is very easy to do.
You gapper know how to use the terms/jargons without knowing what they mean; "counter," my interpretation/translateion, is "against"/逆 some thing, in this context, "counter" means the "direction" of the body movement rotates *against* the "direction" of the skis' movement, which is not just for turning but also maintaining the inner body pressure to keeping better balance, and maintaining a better "orientation." As long as I can keep my "center of gravity" and my "base of support" (do you know what they are?) in relative position in a balance turn, it doesn't matter how my upper body moves.

Our human body walks with left hand and right foot forward and vice versa gaits to maintain the walking, so our body's movements are "naturally" "counted."
So what confuse us is that you keep on boasting how great your method is but all you are practicing is the gross movements. None of you role models do it your way. They all do it the way I described
As we can see, you don't even know where the human body balance is, 「上樑不正下樑歪」, that also says a lot about you base knowledge, your observations, your understanding, and common sense; can't learn, cannot make progress, that's how you gappers become little knowledge.

:)
IS

taichiskiing
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註冊時間: 週六 2月 07, 2009 10:28 pm

#24 回覆: Over Rotating

文章 taichiskiing » 週六 4月 09, 2011 10:53 pm

pku 寫:Noman,

Watch the video and see how the over-rotating cause imbalance of taichiskiing and comapare his skiing with those high end skier you like. If you find anything similar capture the picture and show to us.
Maybe that's because your little knowledge cannot tell the difference between "gully" and "flat"?

http://www.youtube.com/watch?v=sqlfGVrT ... dded#at=27

See how many times he over rotate and cause the outside ski slip out. He can't really link smooth turns.
Say you don't know how I turn may get you more credit; you cannot ski the gully if you cannot make smooth linked turns. Care to show us how you do the gully? Can't? ok, little knowledge.
See how the Japan and Korea 's short turn, they rotate to turn but they are doing just a little bit.
Still doing your 兒皇帝夢?

YouTube - Technical Comparison Short Radius 1



Get stuck on you low end skiing, eh? You are talking about "turns," and I'm talking about "maneuverability." See if they can keep up with us,

YouTube - Flatboarding/Line-skiing: powder skiing trees, Dipper line, Heavenly



:)
IS

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snowrider
文章: 1329
註冊時間: 週五 3月 27, 2009 11:44 am

#25 回覆: Over Rotating

文章 snowrider » 週六 4月 09, 2011 11:58 pm

normanding 寫:Snowider:

對裝備那些文章,我從來不去看它的。 :face (50):

其他你的個人看法,是淺短的理解及荒繆的誤解。 :face (4):

這本書是專教高等級教練的高手推薦的書,雖年代舊了,但其中依然有值得學習的技術,這核心技術至今依然未改變過。 :face (330):

這是歐洲滑雪技術的教本,雖舊依然值得一學及參考,不然早該停版了。 :face (50):
I think that you don't know what this means: 盡信書不如無書 !

When I open a book, the first thing I want to have a look at is the author's credential.

You know what ... I don't know if this author is too humble or what. His credential does not say anything about himself. I searched "Martin Heckelman" from the internet and found nothing but that book. And the only information about the author is from amazon's "Martin Heckelman, one of the most sought-after private instructors ..." :
Amazon.com: The New Guide to Skiing: Concise Edition (9780393306095): Martin Heckelman: Books


Another funny thing is that about the book's Forward. The one who writes the Forward is a bank clerk instead of someone in the industry.

Just FYI about his credential:

"Martin Heckelman is a private instructor operating in the French Alps. He has taught skiing for more than 30 years ..." (http://skiing.about.com/od/skiingbooks/a/newguide.htm)

Sorry for telling you the truth ... this book is a piece of junk!

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snowrider
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註冊時間: 週五 3月 27, 2009 11:44 am

#26 回覆: Over Rotating

文章 snowrider » 週日 4月 10, 2011 12:44 am

Since that book is your bible, sorry that I hurt your feeling.

IF you don't know or are not sure about something, don't pretend that you are very knowledgeable about that. An open discussing can help you grow. What people don't like to see is that your nonsense help (as you are so eager to help others) is actually some wrong concept.

Observer
文章: 71
註冊時間: 週一 1月 31, 2011 8:44 pm

#27 回覆: Over Rotating

文章 Observer » 週日 4月 10, 2011 6:56 pm

snowrider 寫:
"Martin Heckelman is a private instructor operating in the French Alps. He has taught skiing for more than 30 years ..." (http://skiing.about.com/od/skiingbooks/a/newguide.htm)

Sorry for telling you the truth ... this book is a piece of junk!
:face (50): Martin Heckelman has really been around for over 30 years, and had a number of DVD's out.

He was definitely "old school". I do not know whether he has modified his teaching to incorporate modern shaped skis.

I never liked his style. On old timers, I like Lito Tejada-Flores much more. I wish that I can ski like Lito with his gentle and elegant style.

http://www.breakthroughonskis.com/

Here is a video on John Clendenin's training facility, and him talking to Lito:

YouTube - Ski History

lelo
文章: 6011
註冊時間: 週三 10月 08, 2008 10:07 pm

#28 回覆: Over Rotating

文章 lelo » 週一 4月 11, 2011 12:32 am

norman 被老婆抓到了,我再幫他發信 ....
snowrider 寫:I think that you don't know what this means: 盡信書不如無書 !

When I open a book, the first thing I want to have a look at is the author's credential.

You know what ... I don't know if this author is too humble or what. His credential does not say anything about himself. I searched "Martin Heckelman" from the internet and found nothing but that book. And the only information about the author is from amazon's "Martin Heckelman, one of the most sought-after private instructors ..." :
Amazon.com: The New Guide to Skiing: Concise Edition (9780393306095): Martin Heckelman: Books

Another funny thing is that about the book's Forward. The one who writes the Forward is a bank clerk instead of someone in the industry.

Just FYI about his credential:

"Martin Heckelman is a private instructor operating in the French Alps. He has taught skiing for more than 30 years ..." (http://skiing.about.com/od/skiingbooks/a/newguide.htm)

Sorry for telling you the truth ... this book is a piece of junk!
沒傷害,這本書是一個滑雪學校的校長介紹的,是某些知名高手的教練,所以你比他厲害,他也在滑遍天下那邊留下文章。

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snowrider
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#29 回覆: Over Rotating

文章 snowrider » 週一 4月 11, 2011 1:18 am

lelo 寫:norman 被老婆抓到了,我再幫他發信 ....

沒傷害,這本書是一個滑雪學校的校長介紹的,是某些知名高手的教練,所以你比他厲害,他也在滑遍天下那邊留下文章。
若置 - I ain't good. I am still learning. What I don't like is that some low-hand acts like an expert to 誤人子弟. Of course, it's none of my business. It's just quite amusing. I don't know what makes you jump into conclusion that I am better than someone.

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snowrider
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#30 回覆: Over Rotating

文章 snowrider » 週一 4月 11, 2011 1:35 am

Observer 寫: :face (50): Martin Heckelman has really been around for over 30 years, and had a number of DVD's out.

He was definitely "old school". I do not know whether he has modified his teaching to incorporate modern shaped skis.

... [/url]
Hi Observer - that's really not what I meant when I brought up "30 years".

His 30-year experience is a respectful one. However, a respectful long skiing history is not equivalent to being an expert. I am telling Norman the truth about Martin Heckelman, who is someone with no convincing credibility in the industry. When people talk about Martin Heckelman, this is at most what people can say:

"Martin Heckelman is a private instructor operating in the French Alps. He has taught skiing for more than 30 years."

I will be interested to know if Heckelman has won some world cup championship or been a ski organization's examiner or chair ... something like that. So ... if anyone, who skis for 30 years and then writes a book that later it can become a bible to someone like 若置, is a real expert on skiing, then I would suggest TCS to write a book.

Observer
文章: 71
註冊時間: 週一 1月 31, 2011 8:44 pm

#31 回覆: Over Rotating

文章 Observer » 週一 4月 11, 2011 6:41 am

Well, in all fairness, I am sure Martin Heckelman had instructor training way back in his youth days, and his books and videos are well received by recreational skiers. One does not need to be a WC winner to teach. In fact being able to win races and how to teach are two different things.

I do not believe Warren Smith has any race winning or ski school examiner credentials, but he is such a respected ski coach. And I do not believe even the US Ski Team coaches have won any WC events. :face (341):

PSBoy
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註冊時間: 週四 7月 15, 2010 3:24 pm

#32 回覆: Over Rotating

文章 PSBoy » 週一 4月 11, 2011 1:16 pm

Snowrider,

I have the book and would like to share some information.

Counter-turn is an extreme anticipation based on the author explanation. It is good for steep slopes and moguls.

Actually, some well-known ski coaches also advocate that movement. I quote 2 USA coaches for your reference.

Lito Tejada-Flores - in his first ski instructional video tape, he calls that movement, 'pre-turn'.

John Clendenin - he won 2 times World Freestyle Champion. In his DVD, he also suggests the similar movement.

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snowrider
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#33 回覆: Over Rotating

文章 snowrider » 週一 4月 11, 2011 2:43 pm

PSBoy 寫:Snowrider,

I have the book and would like to share some information.

Counter-turn is an extreme anticipation based on the author explanation. It is good for steep slopes and moguls.

Actually, some well-known ski coaches also advocate that movement. I quote 2 USA coaches for your reference.

Lito Tejada-Flores - in his first ski instructional video tape, he calls that movement, 'pre-turn'.

John Clendenin - he won 2 times World Freestyle Champion. In his DVD, he also suggests the similar movement.
Thanks for sharing. That's interesting.

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skier888
文章: 1962
註冊時間: 週日 3月 14, 2010 1:57 pm

#34 回覆: Over Rotating

文章 skier888 » 週一 4月 11, 2011 3:15 pm

I tried this today. My thinking is that counter-turn is part technique, and part tactic. I'll even say it is mostly a tactic move. The reason being that if you have reasonable good fundamental then this is very easy. It won't work if you don't have good fundamental. I also think we see a many variations of this technique on the hills daily that involve a form of rotation to create the anticipation move.

I do have some reservation of this book as a teaching material. The book uses words "twist" and "untwist". This maybe outdated and may lead skier down to the wrong path.

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skier888
文章: 1962
註冊時間: 週日 3月 14, 2010 1:57 pm

#35 回覆: Over Rotating

文章 skier888 » 週一 4月 11, 2011 3:22 pm

taichiskiing 寫:For the same token, what makes you think that your XSIA is better than any other system, gapper?
I never say XSIA is better than any other system. getting grumpy agai :face (46): all you can do is bad mouth people because you can't prove it with your skiing :face (334): :face (334): :face (334):

PSBoy
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#36 回覆: Over Rotating

文章 PSBoy » 週一 4月 11, 2011 3:33 pm

Agree. Maybe the book is good for some skiers because it contains many photos. So, they can 'guess' and 'imagine' the techniques instead of understanding the words. :face (50):

lelo
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#37 回覆: Over Rotating

文章 lelo » 週一 4月 11, 2011 7:54 pm

代 norman 回信
snowrider 寫:若置 - I ain't good. I am still learning. What I don't like is that some low-hand acts like an expert to 誤人子弟. Of course, it's none of my business. It's just quite amusing. I don't know what makes you jump into conclusion that I am better than someone.
我也有Martin Heckelman的DVD教學片,朋友給我的,可惜我只有1、2、5集。

他的DVD教學很值得看,清楚、簡單、明暸,是我看過十幾部所推第一部值得看,很多基礎觀念值得學。

「Sorry for telling you the truth ... this book is a piece of junk!」這是你的評論,你的眼光那麼高,你當然比他厲害囉,你有執照,他也許沒有執照,你能教,他不能教,因為這是誤人子弟,這是你說的,不是嗎? :face (330):

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snowrider
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#38 回覆: Over Rotating

文章 snowrider » 週一 4月 11, 2011 9:22 pm

lelo 寫:代 norman 回信



我也有Martin Heckelman的DVD教學片,朋友給我的,可惜我只有1、2、5集。

他的DVD教學很值得看,清楚、簡單、明暸,是我看過十幾部所推第一部值得看,很多基礎觀念值得學。

「Sorry for telling you the truth ... this book is a piece of junk!」這是你的評論,你的眼光那麼高,你當然比他厲害囉,你有執照,他也許沒有執照,你能教,他不能教,因為這是誤人子弟,這是你說的,不是嗎? :face (330):
若置 - You do not even know who I am talking about the low-hand's acting like an expert to 誤人子弟. That is you! OK, it's none of my business. Do whatever you want to.

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skier888
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#39 回覆: Over Rotating

文章 skier888 » 週二 4月 12, 2011 12:04 am

lelo 寫:norman 被老婆抓到了,我再幫他發信 ....



沒傷害,這本書是一個滑雪學校的校長介紹的,是某些知名高手的教練,所以你比他厲害,他也在滑遍天下那邊留下文章。
lelo, a wise man says

Do not just believe anything anyone tells you. Challenge, question, explore. Learn! Question even the things you think you "know." It's easy to know stuff that is wrong

he also says

Complete technical understanding is not necessary to ski well, but misconceptions and misunderstanding will certainly prevent it from ever happening. Once discovered, it is addicting!

and this

Understanding the ski technique is not critical --or necessarily even helpful--in performing it. But misunderstanding will inevitably lead us in the wrong direction, every time!

lelo
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#40 回覆: Over Rotating

文章 lelo » 週二 4月 12, 2011 9:15 pm

代 norman 貼文
snowrider 寫:若置 - You do not even know who I am talking about the low-hand's acting like an expert to 誤人子弟. That is you! OK, it's none of my business. Do whatever you want to.
「Sorry for telling you the truth ... this book is a piece of junk!」這句話是你寫的,又不是我寫的,你要把兩件事放在同一段,現在硬轉向指我,真是太沒道理了。

我在這裏公開講也沒關係,就是有朋友看了我今年的影片,受到刺激(這朋友已算認識兩三年了),來請求我一定要教的,因為這位朋友發現一件殘忍的事實,有教練教,不一定會進步,因為今年滑十幾天後發現結果沒進步,連點杖也還無法學會,失望之後看到我的新影片後,只求有這樣的動作就好了。經過beg的事後,我本來就不考慮再教人的,這位朋友說一定要跟我學,而且很有誠意,連續講了好幾天後,我才教的,不然我大概提示一下就算了事了,其實我也懶得提示了。

你有本事把影片秀出來,看有沒有人看了要求師於你。這位朋友覺得我的動作比你們好看多了,這只是純看影片的比較感觀而已。

這也是我很開心懶得跟你們爭論,講了看不懂還要怪我看了一本爛書。 :face (334):

最後我要跟你講,那本書只是我的參考書,很多有新心得時,我會拿出來翻一翻再研究一下,主要學習的書,只要一本就夠用了,其他的書皆參考即可。

而我真正認為是我的聖經是三段各五分鐘左右的影片,其中一段你們看過了,這三段才是我真正主要學習的參考對象。 :face (334):

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