查看完整版本 : ski 長度問題

redbababa 2019-1-15 05:59 PM

ski 長度問題

有個ski問題想請教各位高手,我租開149 long ski,到我下巴高少少。上次我試下租用短些的ski 大約142,感覺好像易控制一些,速度我就唔覺有咩分別(可能我滑得慢,又唔會滑黑線)。想問如果我用142會否有咩影響? 其實我點解咁問呢,因為我話要142時,租gear 的人覺得很奇怪,話可能太短,但我又唔覺有咩唔好影響啊!

Galun999 2019-1-16 03:24 AM

That is short.  My son who is 80 pounds and 4 ft 10 inch uses 144cm.

When the ski is short, it is indeed easier to handle and it will be slower. But you won’t learn or improve too much since the ski will be limiting your pace to learn new skills.

What is your height and weight?  I cannot remember if you like to learn carving.  Is so you may want to rent better shape skis with more stiffness, target length between your chin and your nose.

redbababa 2019-1-16 09:54 AM

我大約14x 磅,5呎8寸高,多謝你的建議。我想練carving 呀,但練得唔好,自己都感受到edge 係唔夠,食唔實啲雪(尤其响比較冰的面很明顯)。但用shorter 的ski 情況係好些。因我租gear 的,可隨時改ski length ,我可否先用shorter ski 練好了個form後才轉用返正常 length?為什麼我有這想法,因我去室內場練習時,前面有條橫柱可當扶手,教練要求我先用扶手幫自己做好個form,之後才可放手。那時我用扶手幫助下才做到個正確form,我就記住正確form時的感覺,姿勢和用力的方式,慢慢就可以不用扶手了。我想是否可運用在真雪裏,如果我能用shorter 的ski 做正確的form,我可以記住怎樣用力和姿勢,跟住可慢慢加長ski 至正常length。其實這樣做的目的都係想加速學習和減少跌倒的次數。

redbababa 2019-1-16 10:41 AM

這片是我上年9月响室內場玩時,第一次可放手唔扶前面橫柱滑 [url=https://youtu.be/FWoA270uHXA]https://youtu.be/FWoA270uHXA[/url]
上季我在細機都做唔到,今季叫做進步了少少,成為一位有經驗的初學者:smile_35:

Galun999 2019-1-16 04:31 PM

[quote]原帖由 [i]redbababa[/i] 於 2019-1-16 10:41 AM 發表 [url=https://www.discuss.com.hk/redirect.php?goto=findpost&pid=493493087&ptid=27974641][img]https://www.discuss.com.hk/images/common/back.gif[/img][/url]
這片是我上年9月响室內場玩時,第一次可放手唔扶前面橫柱滑 https://youtu.be/FWoA270uHXA
上季我在細機都做唔到,今季叫做進步了少少,成為一位有經驗的初學者:smile_35: ... [/quote]
So, to be honest, you are smearing the turn, not carving.  You are turning from your hips and rotate, instead of tipping the ankles.

It’s ok.  Too short is counterproductive.  You may not fall but you can’t learn.  Get a chin length shaped ski in the low 150s.  Learn to tip your ski and use the side cut.  If the ski is too short then you cannot learn the carving feel.  You may fall a little more at first but it will help your learning.

redbababa 2019-1-16 04:49 PM

多謝Galun兄的意見,我會認真考慮。我還是turn from hip 嗎?但我的感覺是沒有再要hip 來轉ski 了(上年的確是用hip 力來轉ski),今季明顯感覺到是用腳指公發力的,掃雪的情況都減輕了。但side cut 唔夠是事實,主要係怕跌,唔敢速度太快來做個大angle side cut,我只會每次慢慢加大angle 來試。其實我還是BB班,希望今季上K1

Galun999 2019-1-17 05:16 AM

You are not obviously using the upper body to turn.  You are actively turning your foot which ultimately leads to the femur rotating in the hip socket.  

If you want to learn carving then you need to tip your ankles, start with outside ski inside edge.  You want to ski the sidecut.  A ski that is too short for your weight and height will have a very short sidecut and turn radius, and is counterproductive to learning how to carve.  You carve by tipping the ski on the edge, bending the ski into an arc that cuts the snow.  You can overpower this if the ski is too short for your weight and height, making the ski skid.

Personally given your height and weight I would go for a shape ski in the low 150cm range.   Just start with the right ski length and learn with it.

redbababa 2019-1-17 11:35 AM

Thank you very much! Your advise is right and reasonable. I think I should use the right length ski next time.
Tipping the ankle <- the boots is too tight and hard for me to tip the ankle, I think you mean tipping the whole legs? 教練講過我們要保持小腳和大腳成一直線,但就無講ankle 和小腳是否要需要成一直線,之前都聽過有些師兄講其實對boots 係有少少位比ankle 郁動的,所以係可傾斜少少的對嗎?

allwhite 2019-1-17 07:43 PM

[quote]原帖由 [i]redbababa[/i] 於 2019-1-16 10:41 AM 發表 [url=https://www.discuss.com.hk/redirect.php?goto=findpost&pid=493493087&ptid=27974641][img]https://www.discuss.com.hk/images/common/back.gif[/img][/url]
這片是我上年9月响室內場玩時,第一次可放手唔扶前面橫柱滑 [url=https://youtu.be/FWoA270uHXA]https://youtu.be/FWoA270uHXA[/url]
上季我在細機都做唔到,今季叫做進步了少少,成為一位有經驗的初學者:smile_35: ... [/quote]


redbababa 師兄有毅力有恆心,返到香港都仲玩dry slope:smile_o12:!

redbababa 2019-1-18 12:29 AM

[quote]原帖由 [i]allwhite[/i] 於 2019-1-17 07:43 PM 發表 [url=https://www.discuss.com.hk/redirect.php?goto=findpost&pid=493569058&ptid=27974641][img]https://www.discuss.com.hk/images/common/back.gif[/img][/url]



redbababa 師兄有毅力有恆心,返到香港都仲玩dry slope:smile_o12:! [/quote]
夏天用來止下毒癮:smile_35:,同時帶小朋友去學左先,去到雪場容易些上手

Galun999 2019-1-18 03:51 AM

https://youtu.be/UGn62uxnhjg

The first minute where he showed the ski on the ground, putting the pressure on the ski to make it bend, is a good explanation on the reason why you want a ski with sufficient length.

The ski boot is rigid so when you tip or roll your ankle, the boot will tilt.  That puts your skis on edge.  The point is not actually tilting the ankle inside the boot.  When you initiate a movement by tilt the ankle, you tilt the boot, which puts the skis on edge.

Don’t know what you mean by “小腳和大腳成一直線”.  

redbababa 2019-1-18 01:32 PM

Ic, I think I understand what you mean. That is right, only long ski can provide enough edge to carve. Actually I had tried y what the video teached last year, 但每次我傾斜時都有些驚驚地,主要係怕跌。有時可以做到一兩下,但速度一快又會驚,結果係唔夠膽太斜,今季希望成功。

redbababa 2019-1-18 01:34 PM

小腳和大腳成一直線是指圖中的紅線[attach]9229007[/attach]

skikk2 2019-1-18 08:18 PM

兩季前用157cm長,underfoot 74
衣幾日用166cm長,underfoot 81,真係覺得有難度,仲未適應… :smile_35:

redbababa 2019-1-20 11:44 AM

[quote]原帖由 [i]skikk2[/i] 於 2019-1-18 08:18 PM 發表 [url=https://www.discuss.com.hk/redirect.php?goto=findpost&pid=493618415&ptid=27974641][img]https://www.discuss.com.hk/images/common/back.gif[/img][/url]
兩季前用157cm長,underfoot 74
衣幾日用166cm長,underfoot 81,真係覺得有難度,仲未適應… :smile_35: [/quote]
其實我之前用開155,但覺得難控制,無咩進步,可能是自己個方式唔啱

skikk2 2019-1-20 03:47 PM

覺得用較長ski,parallel 要做得好,唔係好易kick腳…:smile_35:

用長ski落mogul,覺得比較困難…:smile_35:

覺得我自己未夠班用166ski...:smile_35:
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