When you are training, you often spend a lot of time checking things such as your lines of attack, your cover, making sure you know where your weapon is at all times, and ensuring you move with appropriate distancing. These are all important things to be in control of, and certainly should not be underestimated. Underlying all of them, however, as a foundation to all your movements is understanding what your hips are doing. To a very large extent, you move and fight with your hips. Everything else is just delivering a message.
The best fighters always look completely relaxed. They seem to move much faster, and with much less effort than anyone else. They always seem to be right where they need to be, having used very little effort to get there. To a large extent, this is due to good clean hip movement. It reduces all extraneous movement, and provides clear direction and intent. This is what gives these people fast and powerful techniques.
Your hips control your core, and this in turn, determines where your bodies energy is moving. Every action needs to be driven by the hips first. It is this hip motion which provides power through the shoulders and arms to the weapon. Beginning a technique with your shoulders or arms disassociates your bodies actions from its core. The top and bottom halves of your body will be moving in different directions and in an uncoordinated manner. The end result is a weak and slow technique. In contrast, by using the hips to initiate the movement, the body structure is aligned. This gives speed, power, and intent to any technique.
When initiating movements with the hips, the arms stay fairly still relative to the body. They will obviously move enough to give shape to whatever technique is being delivered, but essentially, they are always in front of the body, and reasonably still. This reduces the amount of movement required, making everything that much faster. It also reduces physical stress on the shoulders and wrists, leaving you with better control and extra energy to expend elsewhere.
Driving techniques with the hips anchors the body to the ground. This anchoring provides a huge amount of force and power to drive your techniques home. Whether you are striking aside an incoming attack, or trying to break through a potentially weak defence, the extra power you gain from a well grounded structure is a huge advantage. Its gives you strength which you don’t normally have.
As with so many things in any martial art, these things are better felt than described. By way of demonstration, choose a posta and a technique. Delivering a thrust and lunge from Dente de Zenghiaro is one of many examples you might use. Throw a few techniques initiating them with the shoulders first, then try the same technique powered by the hips instead. You should be able to feel a qualitative difference between the two. Techniques driven by the hips first should feel faster, smoother and more powerful.
Your hips provide your core movement. Everything beyond that is an extension of your core. If you control your hips and use them to initiate your movements, all your techniques will be faster and stronger, and you will be more relaxed. Your arms will be allowed to remain reasonably still, adding speed to your techniques and locking them to your core. Your actions will be solidly grounded adding power and strength to everything that you do. Whenever you are practicing your drill sets, keep in mind to initiate your techniques with your hips. Carry this habit into your sparring. For very little extra effort, this will dramatically raise the standard of everything you do.