There are three arm swinging drills in this section.
The swinging moves are big, expansive making them suitable to be used as a normal qigong exercise if that be your poison.
We use the arm swinging to train long range power. The good thing about using arm swinging is that they are easy to learn and easy to remember.
If you are training for power then you would need to learn how to use the stance to do the swinging, to accelerate the movement of the striking arm, to generate the power, and to use the swinging for attack and defence.
Though the basic arm swinging movement is a long range movement, you can shorten the movement to use it at a shorter range.
Each of the three arm swinging movement has a range of applications. The transition from one movement to the next teaches how to change between the arm swings when used as attacking techniques. This needs to be studied to understand how to keep up a steady barrage of strikes, how to change when opponent attempts to defend against your strikes.
Arm swinging drills introduce the principle of using a sharp drop to power a strike which involves the study of how to accelerate your body movements and the use of dantian to connect to the back to pump the power out to the striking part.