The human flag (known as an iron X in pole dancing)[1] is a feat of strength where the body is parallel to the ground supported by a vertical bar.
Easier variations include hooking one arm over the pole or by having the legs straddled, tucked or raised.
Learning the hold is generally done by starting with the legs parallel to the pole and then slowly lowering them to the ground.
Tucking or straddling the legs alleviates pressure on the abdomen, also making the move much easier to hold.
Harder variations include: The Guiness world record for longest human flag held stands at 1 minute and 5.71 seconds by Wang Zhonghua.