Quiz

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

#21 回覆: Quiz

文章 snowrider » 週五 3月 25, 2011 5:35 am

Have we got the answer from everyone?
If you have answered this quiz, think again and make change if needed.
Think again about how high level skiers ski.



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

#22 回覆: Quiz

文章 snowrider » 週六 3月 26, 2011 6:24 am

snowrider 寫:Have we got the answer from everyone?
If you have answered this quiz, think again and make change if needed.
Think again about how high level skiers ski.
What's the answer from Beg and Norman? A, B, or C?

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

#23 回覆: Quiz

文章 lelo » 週六 3月 26, 2011 9:56 am

snowrider 寫:What's the answer from Beg and Norman? A, B, or C?
他們兩個很忙喔 ....

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

#24 回覆: Quiz

文章 Observer » 週六 3月 26, 2011 10:08 am

snowrider 寫:Have we got the answer from everyone?
If you have answered this quiz, think again and make change if needed.
Think again about how high level skiers ski.
The answer is A. Start from the ankle

pku
文章: 3821
註冊時間: 週日 5月 30, 2010 1:02 pm

#25 回覆: Quiz

文章 pku » 週六 3月 26, 2011 10:56 am

snowrider 寫:Have we got the answer from everyone?
If you have answered this quiz, think again and make change if needed.
Think again about how high level skiers ski.
That's the 3 what CSIA promote, is it similar to what you learn

YouTube - CSIA Turn Phase 1


YouTube - CSIA Turn Phase 2


YouTube - CSIA Turn Phase 3

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

#26 回覆: Quiz

文章 skier888 » 週六 3月 26, 2011 11:30 am

The keyword is "start"

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snowrider
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#27 回覆: Quiz

文章 snowrider » 週六 3月 26, 2011 12:04 pm

The answer is ...
您沒有權限檢視這篇文章所附加的檔案。

pku
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#28 回覆: Quiz

文章 pku » 週六 3月 26, 2011 12:05 pm

skier888 寫:The keyword is "start"
That's why I post this so when he explain, I can understand more clearly since I don't have much clue at the moment.

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snowrider
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#29 回覆: Quiz

文章 snowrider » 週六 3月 26, 2011 12:08 pm

I got this one wrong too.
Ironically, the better a skier is, the lower his/her concept about ski theory might be.

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snowrider
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#30 回覆: Quiz

文章 snowrider » 週六 3月 26, 2011 12:15 pm

Congratulations to:

Taichiskiing, B2L2, norman

Taichiskiing did not provide any reason.
B2L2's explanation makes more sense.
Norman relates this to up-down motion, which is 瞎貓碰到死耗子 and meaningless.
最後由 snowrider 於 週六 3月 26, 2011 12:18 pm 編輯,總共編輯了 1 次。

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skier888
文章: 1962
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#31 回覆: Quiz

文章 skier888 » 週六 3月 26, 2011 12:16 pm

snowrider 寫:I got this one wrong too.
Ironically, the better a skier is, the lower his/her concept about ski theory might be.
You need to qualify the answer as PSIA answer. Thanks god!

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snowrider
文章: 1329
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#32 回覆: Quiz

文章 snowrider » 週六 3月 26, 2011 12:23 pm

One more reason is that the higher a skier is, the actual edge angle that s/he makes is from shifting torso (or CoM) directionally to commit an early edging. Then the skier's edging is mostly created from the angle between body and femur, where the ankle plays very minimal effect.

Ironically, TCS may know this theory but his skiing does not demonstrate anything about edging movement.

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snowrider
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#33 回覆: Quiz

文章 snowrider » 週六 3月 26, 2011 12:26 pm

skier888 寫:You need to qualify the answer as PSIA answer. Thanks god!
Oh my gosh ... I thought that this may make sense universally.
Oops! PSIA is where I am learning and receive training from.

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skier888
文章: 1962
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#34 回覆: Quiz

文章 skier888 » 週六 3月 26, 2011 12:28 pm

Again, this is PSIA answer. By any chance, is this called angulation in PSIA term? That is using angulation to control edging.

beg
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#35 回覆: Quiz

文章 beg » 週六 3月 26, 2011 12:41 pm

snowrider 寫:What's the answer from Beg and Norman? A, B, or C?
問題不清晰。 :face (46): :face (46): :face (46):

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snowrider
文章: 1329
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#36 回覆: Quiz

文章 snowrider » 週六 3月 26, 2011 12:46 pm

skier888 寫:Again, this is PSIA answer. By any chance, is this called angulation in PSIA term? That is using angulation to control edging.
I simply copied and pasted the Q and A from a PSIA sample exam.

Yes, it's part of angulation. Here is from their textbook:

"The purpose of angulation is to control the edge angles of the skis on the snow, while skiers can angulate from the ankles, knees, hips, and spine, the hips produce the greatest range of edge control."

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snowrider
文章: 1329
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#37 回覆: Quiz

文章 snowrider » 週六 3月 26, 2011 12:50 pm

beg 寫:問題不清晰。 :face (46): :face (46): :face (46):
Sorry about that. I'll make more clarification next time.

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skier888
文章: 1962
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#38 回覆: Quiz

文章 skier888 » 週六 3月 26, 2011 12:51 pm

snowrider 寫:I simply copied and pasted the Q and A from a PSIA sample exam.

Yes, it's part of angulation. Here is from their textbook:

"The purpose of angulation is to control the edge angles of the skis on the snow, while skiers can angulate from the ankles, knees, hips, and spine, the hips produce the greatest range of edge control."

I guess the other is inclination :face (46):

I can only suggest that you look back where the answer comes from (hint: I think you can find answer in PSIA 199x technical manual. I can probably tell you the page # but that will be too easy. To save you some time, start from page 60, and look at even number year)

Observer
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#39 回覆: Quiz

文章 Observer » 週六 3月 26, 2011 8:43 pm

snowrider 寫:Edge control movements start at the ...

A. ankles
B. knees
C. hips
If C is the answer from PSIA, then it is clearly different from what some other ski schools teach:

http://skiing.about.com/od/skiingtip1/q ... t-Hips.htm

YouTube - Ski Practice 7: Harald Harb's "Phantom Move"




Also see this on high-end racing techniques:

http://www.youcanski.com/en/coaching/inclination.htm

Observer
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#40 回覆: Quiz

文章 Observer » 週六 3月 26, 2011 11:55 pm

This is even more interesting, and it is from Epicski, a PSIA forum with lots of PSIA instructors participating.

The topic of this thread is “edging-feet-first”:
http://www.epicski.com/forum/thread/838 ... feet-first

Let me quote one of the first postings in that thread:
“…However, the mechanism by which many skiers
change edges could do with some work. One method of changing edges is by
relaxing the downhill leg, extending the uphill leg and thereby crossing over
the skis with entire body, with the shoulders well inside the arc of the new
turn. Another variation is to focus on crossing over the skis with the hips
switching from side to side. Again, this changes edges, but in both cases, a
gross or large movement of the upper body facilitates the edge change. To
roll the edges in this way, say 60 degrees, the shoulders and or hips must
travel a large distance, and this takes time. To amp up your skiing, think
about changing edges first at the ankles, then knees at the top of the turn….”
(George Thomas, Head coach, Beaver Creek Race Department)

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