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.

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?

snowrider 寫:What's the answer from Beg and Norman? A, B, or C?

他們兩個很忙喔 ....

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

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

The keyword is "start"

The answer is ...

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.

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

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.

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!

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.

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.

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

snowrider 寫:What's the answer from Beg and Norman? A, B, or C?

問題不清晰。

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."

beg 寫:問題不清晰。

Sorry about that. I'll make more clarification next time.

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

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)

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

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)