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舊 2008-08-15, 10:41   #1
Mike
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Slope8 滑雪技術討論 1 (Basic Ski Technique - Snowplough or Wedge turns)

Skier - I hope you don't mind I re-post your previous thread on Slope8 滑雪技術討論 1 (Wedge turns) here again, as I think although ineffective in certain way, one ought to know how to do snowplough properly.
See how the mountain rescue take injured skier/boarders in a stretcher down the mountain - snowplough!

Quote:
"我哋見到May 23 來 Slope8 參加聚會的滑雪朋友,有很多人對基本技術上的理解有些不足. 但好多人想快啲做到 parallel turns. 但是如果基礎做得唔好,將來的進步和姿勢的準確就會出問題.

So, I will start here from the basics. I will post one video clip at-a-time. Then we can have discussions. Be patient, parallel turns and more advanced movements will come.

Video Clip 1 (Wedge turn):

http://www.slope8.com/jn/Wedge.m1v

Notice:
1. The body posture (姿勢): bent at the waist, rounded shoulders, some bending in the knees all the time.

2. There are no shoulder or hip rotations. All turns come from the feet and legs. Both feet are pivoted the same amount (many beginners pivot only the ‘turning’ ski).

3. There are ample of up and down motion. The 'up' motion and the pivoting of both skis will also flatten the ‘old’ turning ski making the new turn easier.

4. Edging of the turning ski."

http://220.232.208.148:8080/viewtopi...ef2d45036b24ce

此篇文章於 2011-05-29 07:49 被 Mike 編輯。.
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舊 2008-08-15, 22:23   #2
skier
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作者: Mike 查看文章
Skier - I hope you don't mind I re-post your previous thread on [b]
Of course not - you can move everything over, if you can

Thanks.
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舊 2010-07-28, 19:34   #3
Mike
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Here below is a video clip showing the snowplough turn (which was posted by "ader" in his ski forum)

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舊 2010-08-23, 18:12   #4
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Here is Bob Barnes's video on the snow plough turn:

http://vimeo.com/6591450
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舊 2011-05-29, 08:44   #5
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Terminology always adds to the confusion. - some called it snowplough (or snow plow (US spelling)) some called it wedge (or braking wedge).
In the old days, with the straight skis, every skier started by learning the snowplough. The primary purpose of positioning the skis in a "V" shape (tips close together, tails apart) was speed control. With modern skis and groomed slopes, the reason for starting skiers with the "V" shape is to assist balance, because speed control is more easily achieved through turning. For this reason, the "wedge" "V" is narrower than a "snowplough" "V". A narrower "V" means the skis are flatter on the snow and easier to turn by turning the feet. So although the shape makes a snowplough and a wedge look like the same thing (and some people use the terms interchangeably), there are significant intent, level of difficulty and performance differences.

I was told that in the PSIA's 1st Manual in 1964. PSIA opined that a snowplough is not the same as a gliding wedge. In fact they went to great lengths to suggest if you were ploughing snow you were using too much edge. They used the idea of spreading butter on a piece of bread to describe how the skis should glide across the snow. They went on to say that if snow is building up under the skis you are over edged. To expand on that example - if you are scaping butter onto the knife you would want more edge. If you're trying to spead it onto the bread you wouldn't use the same higher edge angle.

There are many different ways to teach a wedge turn. How to teach them depends on the abilities of the students and the conditions of the day. Sometimes it may be started by moving from a wedge starting position and then tell them to just slightly flatten the inside ski (the ski on the side they wish to turn to) by moving their hips slightly over the new inside ski while raising the big toe side of their inside foot. Sometimes one can tell them to just turn both feet by pressing their toes against the side of the boot toward the direction they want to turn. Sometimes one can tell them to pull the inside ski back slightly. On very rare occasions students are told to just stand on the outside ski. Sometimes the instructors may reach down and hold the ski tips to together and force the change in direction to happen.
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舊 2012-12-21, 09:20   #6
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According to one BASI instructors:
I quote:
"Snowplough should not be discarded when skiers get good. The only difference between a parallel turn and a snowplough turn is what happens with the inside ski. In a snowplough turn, it is held in a plough shape to aid balance at very low speeds, in exactly the same way a stabiliser wheel on a kid's bike is used when they are learning to ride. As soon as the speed of the skier increases to enable them to balance fully on the outside ski the inside ski no longer serves a purpose as a balance aid, so it can be steered at the same time as the outside ski. Nothing is 'thrown away' when you stop snowploughing. In fact our ski clinics deliberately slow things down for our experienced skiers to they are forced to use a plough while concentrating on the basic movement patterns we make."
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