meoima said:
Happy new year to everyone! (cheerleader)
I have found a Japanese Tv documentary about Yuzuru's SP at Sochi. I hope Japanese poster can help me with this.
Part 1:
http://www.dailymotion.com/video/x2do2d1_データ-前半_sport
It seems Yuzuru's quad toe at Sochi was 3.72m in term of ice coverage.
Part 2:
http://www.dailymotion.com/video/x2dnf8h_データ-後半_sport
Hi, meoima (pika3)
This is a summary for only Part 1. Sorry it is very sketchy (pika10)
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Try to find the secrets of Yuzu’s jumps
0:00~6:00 Talked about how well Yuzu skated in OG, how good his jumps were,and about the general judging system of FS
Yuzu’s travelling distance of his 4TL is 3.72m
Two kinds of speed in a jump = the vertical speed and the horizontal speed
Yuzu’s vertical speed = 2.62m/sec
Horizontal speed = 4.29m/sec
There are two types of jumpers; the high jump type and the long jump type.
Patrick and Carolina are in the long jump type.
Yuzu’s is the ultra-long jump type = leads to high GOE
People perceive a movement bigger if something moves wide horizontally compared to a vertical movement. Hence Yuzu’s jumps look good.
But his style is more difficult to rotate. When you jump straight up, it is easier to make and keep the axis of jumps.
(16:10~) There are 8 points of GOE for jumps and the red ones on the screen are those Takeshi thinks Yuzu’s 4TP satisfied.
(16:50~) Rotation
The arm posture of double jumps and that for triple jumps are different.
In a triple jump she keeps arms closer to her body
It causes 0.7 sec difference to rotate once between a double jump and a triple jump. When arms are stretch out as in the double jump, moment of inertia gets big. Bigger moment of inertia is, harder to rotate
0.215sec for yuzu to complete a single rotation. Yuzu’s rotation speed is slightly faster than Plushenko’s. This too makes his jumps look good (free from UR).
If you are tall and thin, it is easier for you to rotate. The weight is concentrated around the center (axis) of the body and that makes it easy to rotate. Yuzu has that physique.