Palm Spin - parkour guide
This technique allows you to rotate 360 degrees around an edge, in an efficient and agile way.
Palm spin is one of the more technical exercises. In a palm spin, you do not have to overcome the obstacle, but instead use it to perform a kind of U-turn. This is done by approaching the obstacle and placing your preferred hand/strongest hand on the edge of the obstacle facing 180° degrees. Then place the other hand on it as a support and set off with your legs. Next, lean against the direction of the preferred arm and rotate the whole body around that arm so that your entire body lands on the other side of the arm.