how to use stall bars
- That is the pro level â no doubts about that. The flag is whole-body exercise, especially great for the core, arms and shoulders. Stand with your side to the stall bars. The arm close to the bars is straight in the elbow, the hand grabs the bar under, on the level of the hips. The other arm, straight in elbow, reaches all the way above your head to the bars, so that the hand grabs one of the upper bars.