Freestyle body rotation/getting power from the hips

First of all, I don't know if these concepts are directly related. But I finally got some coaching tips and realize that I am plowing through the water like I am swimming like I am stroking with my belly on a surfboard. I have learned to get the high elbow recovery and now I feel the rotation of my body, or at least the potential for it to rotate. So my question is, do I force my body to rotate more, or is this a natural consequence of doing other things correctly? I can especially feel it on my left/non-breathing side where I can force myself to over rotate beyond which I am doing. The power from the hips part, I was told I need to do that, but I have no idea how to execute it. One simple way to improve hip rotation is to point your belly button toward one wall, and then toward the other wall in training. This will give you 90 degrees of hip rotation to each side. Then when you race, it will drop down to 45-60 degrees, which will help your swimming. It's also a good idea to turn your hips fast. Tests conducted on our swimmers at Colorado Springs showed they doubled their peak hand force output in just five days after they increased the speed and range and advanced the timing of their hip rotation. One of the swimmers went on to win four Gold Medals at Atlanta; another won two.

First of all, I don't know if these concepts are directly related. But I finally got some coaching tips and realize that I am plowing through the water like I am swimming like I am stroking with my belly on a surfboard. I have learned to get the high elbow recovery and now I feel the rotation of my body, or at least the potential for it to rotate. So my question is, do I force my body to rotate more, or is this a natural consequence of doing other things correctly? I can especially feel it on my left/non-breathing side where I can force myself to over rotate beyond which I am doing. The power from the hips part, I was told I need to do that, but I have no idea how to execute it. One simple way to improve hip rotation is to point your belly button toward one wall, and then toward the other wall in training. This will give you 90 degrees of hip rotation to each side. Then when you race, it will drop down to 45-60 degrees, which will help your swimming. It's also a good idea to turn your hips fast. Tests conducted on our swimmers at Colorado Springs showed they doubled their peak hand force output in just five days after they increased the speed and range and advanced the timing of their hip rotation. One of the swimmers went on to win four Gold Medals at Atlanta; another won two.