他們(psia level 3)應該，但是大多數的他們看不到也做不到。原因很簡單，當他們爬到 level 3 的時候他們滑雪的方法及知識己經被psia的教法定了形(因為他們要經過psia的考試)，而psia的滑法是根據平行滑雪(parallel skiing)的方式，五十年來沒有變(有點落後)，他們最高的技術就只有純刻轉(pure carving)。但是我們知道，當我們純刻的時候我們會被鎖在板道上(locked under the turning G force)，所以他們的技術也就被限制在他們的想法裡。太極滑雪/平板滑雪(flat-skiing)突破他們(psia)的carving枷鎖。
注意那弓箭步的站法，在滑雪時，那就是刻滑(carving)的基本姿墊，用力在前腳小指頭邊那就變成內腳外沿(little toe side edge)，要是你能保持身体的平衡，你一定會刻滑的。要刻滑站四六或三七步(重量在外腳/後腳(outside ski)，但是重心在內腳/前腳(inside ski)。要是你能做五五站那就是牛童轉(cowboy turn)或是火車軌(railroad track)。謝謝你的問題，你慢慢想想一下，我...
注意那弓箭步的站法，在滑雪時，那就是刻滑(carving)的基本姿墊，用力在前腳小指頭邊那就變成內腳外沿(little toe side edge)，要是你能保持身体的平衡，你一定會刻滑的。要刻滑站四六或三七步(重量在外腳/後腳(outside ski)，但是重心在內腳/前腳(inside ski)。要是你能做五五站那就是牛童轉(cowboy turn)或是火車軌(railroad track)。謝謝你的問題，你慢慢想想一下，我...
對。還有，陰陽總是一對。外腳內沿(outside ski's inside edge, big toe side edge, 陰)跟內腳外沿(inside ski's outside edge, little toe side edge, 陽)在平行滑雪時是一對。一般生手平行滑雪的困難是內腳上不了外沿而卡在內沿上而兩塊滑板變成雙陰/snowplow。Snowplow(你們怎樣翻這個?)的內腳內沿會防礙轉彎，所以要把內腳的內沿變成外沿，那是說在平行滑雪時轉彎以後兩個邊/edges都要換才能安穩的續繼。所以轉彎時不只是內腳跟著動而且要用力在內腳小指上(腳刀)去把內腳滑(不是放，那是說不把腳抬離地)成平行於外腳。
taichiskiing 寫:對。還有，陰陽總是一對。外腳內沿(outside ski's inside edge, big toe side edge, 陰)跟內腳外沿(inside ski's outside edge, little toe side edge, 陽)在平行滑雪時是一對。一般生手平行滑雪的困難是內腳上不了外沿而卡在內沿上而兩塊滑板變成雙陰/snowplow。Snowplow(你們怎樣翻這個?)的內腳內沿會防礙轉彎，所以要把內腳的內沿變成外沿，那是說在平行滑雪時轉彎以後兩個邊/edges都要換才能安穩的續繼。所以轉彎時不只是內腳跟著動而且要用力在內腳小指上(腳刀)去把內腳滑(不是放，那是說不把腳抬離地)成平行於外腳。
I guess so. I believe that the turns mechanism is very much as pivot slip of PSIA. Pls check the video I provided for comparison. It can be deduced that he have edging because there are lateral displacement.
#16 回覆: 太極滑雪法
發表於 : 週二 2月 24, 2009 3:15 am
由 stillskiing
Carver,
Isn't that more or less "skiding"? So is the demo on PSIA. The purpose of that demo drill is to show controlled sliding as I have been through that drill back in my days of PNSIA, teaching at Mt. Baker.
#17 回覆: 太極滑雪法
發表於 : 週二 2月 24, 2009 12:44 pm
由 carver_hk
stillskiing 寫:Isn't that more or less "skiding"?
This is certainly a very difficult question to answer. First thing comes up to mind is the vocabulary. Now I understand why Bob Barnes name his book by encyclopedia. Going back to the subject I like to know what is defined by:
skidding - ?
slipping -?
edging - this one is easy, put skis on edge.
Want to share your knowledge?
stillskiing 寫:So is the demo on PSIA. The purpose of that demo drill is to show controlled sliding as I have been through that drill back in my days of PNSIA, teaching at Mt. Baker.
There is a very detailed description on the purpose of the pivot slip. My own understanding is that it teaches:
1. release - you can see a good release in taichiskiing.
2. pivoting - rotation about the femur. - too
There might be lot more then that as it is a psia top drill it can not be too simple. even examiner have to be able to do it in very difficult terrain. right?
#18 回覆: 太極滑雪法
發表於 : 週二 2月 24, 2009 2:02 pm
由 stillskiing
As I understand it, the diffenerce is the applied pressure and the result of such action. One is voluntary and one is not.
#19 回覆: 太極滑雪法
發表於 : 週二 2月 24, 2009 4:02 pm
由 carver_hk
stillskiing 寫:As I understand it, the diffenerce is the applied pressure and the result of such action. One is voluntary and one is not.
I was trying to find a clear definition of skidding. What I found was a big load of discussion on similar topics. Here is one of them.
carver_hk 寫:This is certainly a very difficult question to answer. First thing comes up to mind is the vocabulary. Now I understand why Bob Barnes name his book by encyclopedia.
Bob Barnes is a name too big to fail at the Epicski, yet his so much praised "stickman" animation, http://mynetimages.com/3795c74b_md.gif, has a major fundamental flaw in there that seems nobody dares to challenge, or nobody at Epicski really knows.
Notice the tag "CM" stays in a stationary position in the middle of the animation? CM is stand for "Center of Mass," and "Center of Mass" goes with "Mass," so CM never leaves outside of the "Mass," in this case, the body of the stickman, i.e. the CM should move with the stickman, not stationary in the middle. The animation is flawed.
Going back to the subject I like to know what is defined by:
skidding - ?
slipping -?
edging - this one is easy, put skis on edge.
Want to share your knowledge?
Skidding: when the tail of the ski moves downward faster than the tip, so it is an overturn; as the ski is now pointed more uphill, it slows down, so skidding is like "throttle down," or braking.
Slipping: when the tip of the ski moves downward faster than the tail, so it is an underturn; as the ski is now pointed more downhill, it speeds up, so slipping is like "throttle up," for accelerating.
Edging/carving: when tail follows the same path of the tip.
There is a very detailed description on the purpose of the pivot slip. My own understanding is that it teaches:
1. release - you can see a good release in taichiskiing.
2. pivoting - rotation about the femur. - too
There might be lot more then that as it is a psia top drill it can not be too simple. even examiner have to be able to do it in very difficult terrain. right?
I notice that general English speakers don't really know or distinguish the difference between "skid" and "slip"; they just use the terms as "slippery" or something like that.
"Pivot slip" is the classic "pole and shovel"--pole to balance and shovel to turn--technique of the old days; the name may also be wrong, as the technique skids the tail of the ski, it should be called "pivot skid." Nevertheless, I'm not that good in English either.
nion (36):
