左肘を伸ばしてトップを作る方法。なぜトップで左肘が曲がるのか！

[The reason why the left elbow bends at the top] There are probably many people who cannot swing smoothly when hitting with their left elbow stretched out at the top and the flight distance is reduced, and there are many people who have a hard time correcting their bent left elbow at the top. This time, I will tell you three reasons why the left elbow bends at the top for those people.

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