【更新第二集】【更新V3】正在做的一个视频系列

firehwak2018

求大侠们指点拍砖补充。有关视频制作或技术方面的都尽管拍。


更新立刃：

bullpower

学习了。
是否加一条， 好的stance也是正确pivoting的前提

KuoiGuaBoarder

小英雄威武，这是写标准的节奏啊

firehwak2018

bullpower 发表于 2015-10-16 07:43
学习了。
是否加一条， 好的stance也是正确pivoting的前提

非常好的建议，下一个版本加进去。

bullpower

firehwak2018 发表于 2015-10-16 12:08
非常好的建议，下一个版本加进去。

其实你已经提到了PIVOTING  POINT. 但根本是在STANCE 上.

真不明白为嘛有人说要后坐才能PIVOTING...最简单的初中物理, 力距=力*力臂.
如果阻力就在脚底, 力臂小, 雪的阻力距最小, 当然PIOVITING 更轻松更快.
如果前倾或后坐, 板头板尾吃力, 那阻力臂变大, 诅力距会变大, 当然不好PIVOTING,
我能再加一条, 容易把KNEE 给别坏吗.....

常hold的住

火鸟大侠V5。 轴转太高大上了，无pivoting不双板。

楼主定义轴转为腿部在髋关节内的独立旋转动作。请教 这个出处来自哪里？偶在红宝书中找到如下。没有明确

Pivoting
Pivoting is the ability to utilize the legs and feet to help guide the skis in a specific direction.
Whether the turns are carved or skidded, the lower body leads the turning effort.
Pivoting and direction change
With the upper body facing the direction of travel, turning the legs in the hip sockets creates a
steering angle. This, combined with ski sidecut, deflects the skier in their arc. Pivoting is seen in
the relationship between the upper and lower body.
Pivoting and balance
The ability to guide the skis on their path without relying on hip or upper body rotation will help
a skier maintain balance by keeping the body over the outside ski. From the hips down there is
less mass than in the torso, so changing direction with the lower body is quicker and lets the
COM move in a smoother trajectory.
Pivoting and edging
Upper/lower body separation enables a skier to balance on their edges through angulation.
Turning the femur in the hip socket allows the hip joint to be more mobile laterally to the inside
of the turn, helping to balance on the edges.
Pivoting and rotation
Turning the hips or the upper body before the legs at any part of the turn is called rotation. At the
top of the arc (phase 2) this could be caused by a rushed weight transfer (timing and pressure
control) or an imbalance from phase 1. Through the bottom of the arc (phase 3 into 1) it may be
caused by poor steering mechanics or a loss of control of angular momentum.

另外，偶赶脚还是要讲清主动和被动的区别，比如
Upper/lower body separation results from an active pivoting of the legs beneath the skier.

有些轴转是被动的，肌肉并没有发力。 容易误导初学者以为任何弯一直用力轴转。

lupo

赞，视频做的很好！

smilefish

非常好的视频，多谢楼主。

firehwak2018

常hold的住 发表于 2015-10-16 18:42
火鸟大侠V5。 轴转太高大上了，无pivoting不双板。

楼主定义轴转为腿部在髋关节内的独立旋转动作。请教 这 ...

Pivoting是动作的定义最新的Technical Reference讲清楚了，常大侠引用的是教材的解释。它只是说了它作为一个skill的功能，不是对pivoting本身的定义。Pivoting既然是个动作，就必然是主动的。这点它和压力控制不同。

westvest

赞一个！