What is Yugaeri (Bow Rotation) in Kyudo?

Today let's discuss Yugaeri in Kyudo. Simply put, it's the natural rotation of the bow in the left hand at the moment of release, with the string wrapping around to the back of the arm.

This isn't just for looks — it's essential for the arrow to fly straight. Since the arrow sits on the right side of the bow, without Yugaeri, the arrow gets pushed to the right upon release. With proper Yugaeri, the arrow flies straight.

Without Yugaeri, the string can also hit you — causing bruises on the inner arm at best, or striking the ear and face at worst, creating fear of release for beginners.

For Kyudo beginners, this is arguably the most desired milestone after hitting the target for the first time. In Japanese Kyudo grading examinations, it's also one of the requirements for passing the Sandan (3rd Dan) test.

In essence, Yugaeri happens naturally as a result of correct Tenouchi (grip). It's an outcome, not a goal. Some people try to force it by flicking their wrist, but that's not the proper technique.

Even with proper Yugaeri, the bow shouldn't slide from the grip leather down to the rattan. Grip too tight and the bow won't rotate; too loose and it drops too much — it's truly an art form.

📺 参考影片

▲ 動畫《弦音》中的弓返場景

▲ 範士八段 柴田猛先生的手之內示範

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