The most fundamental stroke for all swimmers is called the freestyle. This can also be known as the front crawl or the sidestroke, and it is the cornerstone for many training routines. It is the fastest competitive stroke, and also uses the least amount of energy. Focus on these few things to improve your stroke.
Position of Your Head:
The position of your head is an important part of the overall position of your body.Where your eyes are looking and the position of your head has a large influence on the direction your body will go. You should have your eyes looking down while under water to allow the water to pass over you more easily and reduce resitance. Your body will sink if your head is looking forward, causing more resitance against the water.
While swimming freestyle you want to reach out as far as you can, possible fully extending your arms. try to roll your shoulders to allow a smother stroke so that more water can be pushed back towards your hips. Also use your elbow to force the water back by bending it underneath you. This process should be done as quickly as possible.
Your hands are the first part of the body that enter the water and play an integral part in progress through the water. Hand positions can vary depending on if you are swimming distance of sprinting.If you are sprinting, you should have your hand flat, fingers slightly apart, with the hand pitched down so that the fingertips hit the water at the same time. Many distance swimmers like to have their thumbs enter the water first to allow for a broader sweep.
Legs do not provide much of the power during freestyle, but that does not mean they should be ignored. Keep your body horizontal and keep your legs kicking. shortfast kicks are the best, and your feet should barely break the surface of the water. This will also keep your legs from sinking.
Breathing at the right time is very important. Swimmers need to develop a rhythm and get adjusted to it. Pick a side you want to breathe to, or try to alternate sides. Every third stroke or so is a good time to breathe. Do not forect to keep your eyes pointed towards the bottom of the pool while you are holding your breathe, and to turn your head horizontal when you need to breathe.
Your technique can improve a lot if you follow these steps. If you want to learn more about it, visit Freestyle Swim Blog