Category: Blog

Step:1
You have the feeling of the friction between skin and bow.

Step:2
You have the feeling when the bow rotates, friction against the skin increases. When the string is released, the bow is rotated because the friction is released.

Step:3
When left arm is opened sideways, the bow is rotated within the hand.

Step:4
Let’s try drawing!

Regarding the right hand, I compared the appearance when using three fingers or four fingers.

• The angle of the fist changes.
• The height of the fist changes along with the angle.
• To keep the fist at the same height, the position of the elbow must be adjusted.

The movie that without arrow simulation

The movie that with arrow simulation

Ref.) Interesting without glove

I tested 3 or 4 fingers without kyudo glove

The fist angles differ between 3 and 4 fingers.
It is presumed that the position of fork is differed by 3 or 4 fingers.

I obtained some interesting results:

• It is said that the Uchiokoshi is easier to align both shoulders, and I found this to be true.
• Both shoulders felt slightly constrained.
• By checking the condition of my shoulders while drawing the bow, my movements became slower.

I tried using the arranged glove, and the following issue was identified:

• The wrist rest was too soft

I will make improvements.

Before post
Arrange glove

I arranged the gloves to fit my own fist.

• Arranged the stiffness of the glove
• Changed the number of fingers from three to four
• Modified the shape of the fork to better suit my fist

Notice
I trained with stiff shoulders condition, moving of the scapula differs from normal condition.
Please check left scapula in under picture, difference between normal and left shoulder stiffness condition.
It is presumed that the stiffness affects performance.

Update my style, scapula is in my body more than before.
So, the position of the bones has become more stable.

I will want to right scapula more stable.

I found my training scene in 2012.
Compared to now, there are various differences.
Overall: The force vector is not aligned with the bow. It is imaginable that Hanare move could become not aligned.
Yugamae: The left arm was too hold
Uchiokoshi: Not natural the left arm moving
Kai: The bow and body were not united
Hanare: The force vector is not aligned

note)
If I had be training the style, everything except Hanare can remains.
However, I train another style – now Yugamae is better – then and now, it is not good that the left arm is too hold.

Update my Uchiokoshi, the appearance changes are minor, but the content has changed significantly.
The yunde operation has become very natural and great.
The natural motion is high performance and low cost to my body.
I will continue for update my style.

The left is before, the right is after