How to align your spine accurately to pull the bow with ease.

I will explain how to maintain your posture to pull the bow accurately.

When pulling the bow, To align your spine is important, There are many kyudo books that explain the importance of posture when pulling the bow.

But, it is difficult to align your spine while pulling it. You should make sure the center of  the balance and the muscle you use.It is because, when you try to streach your back muscle, you may not become bad posture.

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For example, put your weight on your toes and stretch your back muscle upward.You might tighten your back muscle too much.It’s because your pelvis leans forward when you put your weight on your toes.

In body anatomy, your back muscle loose when your plevis stand vertical. When pulling the bow, you should straighten your plevis and spine.

And, Please streach your back muscle with opening your feet 60 degrees. When you do this, your shoulder muscle will be tighten.

Therefore, If you just try to stretch your posture, it is difficult to pull the bow with straightening your spine.

In kyudo book, ideal posture is that doesn’t have a curvature of the spine.

本によると→理想の胴造りは、背骨が前後左右にねじれのない姿勢←と言われています。

First, you stretch your back and neck muscle with your pelvis straight.
骨盤が真っ直ぐに立った状態で首の後ろと脊柱を伸ばすようにします。

Then , your back bone piles upward.
すると、背骨がひとつひとつ積み木のように上方に積み重なります。

When you keep that posture, it’s hard to make your core line misaligned.it can be earier to raise your arms upward and pull the bow. It’s because your upper body muscle relax.

この姿勢を保持すると、引いている最中の姿勢がぶれにくくなります。加えて、打ち起こしから引き分け動作がしやすくなります。

In body anatomy, When a pelvis lean forward, your back muscle tighten. When a pelvis lean backward, your stomach muscle tighten. When you are not conscious of stretching your back and neck muscle （骨盤が傾いたまま）, you might tighten a part of upper body muscle.

もしも、骨盤の傾きが前や後ろに傾いたままの状態で、首や背骨を伸ばす意識がなくなったとしましょう。すると、上半身の前後、左右のどちらかに何もしなくても力みが起こります。解剖学的には、人の骨盤が前に傾くと、後部の筋肉（背中）が張り、後ろに傾くと前側の筋肉（腹部の筋肉）が張ることがわかっています。

when you just try to stretch your back muscle as many people tends to do.

or ideal your posture, you need not only to streach your back muscle but also to straighten your pelvis.

To straighten your pelvis and stretch your back muscle prevent your posture from bending. There are four type of posture with your core leaning forward, backward, right and leftward.
With two thing, you can maintain your suitable posture.

弓道の姿勢では、体が「反る・屈む・右傾する・左傾する」の４つの姿勢の崩れがあります。もしも、三カ所の筋肉が力まずに姿勢が伸びていれば、弓を引いている最中にこの４つの崩れをおさえることができます。

Muscle works as a power for 20-30minute. It will be difficult to use whole your body muscle while pulling it if your back or abdominal muscle tighten.

you may not pull the bow with ease and not release your arrow straight.

■Where not to tighten the muscle in your body
In old kyudo book written by Umeji Kenran, It is said that there
are three muscles not to tighten while pulling it.

1. Abdominal muscle
2.Back muscle
3. Side muscle

（参考、Shingetsusyagi）

Therefour, To pull the bow acculately, you need to make your core to be conscious
of three thing.

Not to bend your spine.

Not to tighten your abdominal muscle.

Not to lean your core line left or right side.

As written in old kyudo book, It need not to tight your back or abdominal muscle.

■It can be easier to make your core line straight if you put your weight on your heal.
踵を踏むと、背中の湾曲が抑えられる

If you can’t make your core line straight well, Let’s put your weight on your heal. When you do that, it can be easier to straighten your posture and loosen your back and abdominal muscle.

When putting your weight on your heal, you can earily pull your head and chest muscle backward.

そこで、大切となるのが踵に体重を置くことです。踵に体重を置けば、背骨が曲がりにくくなり、かつ下腹の力みがほぐれます。

最初に、踵に体重を乗せてください。軽く顎

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