Swimming is a kind of techniques that floating with its own strength on water and moving forward in water by its
own limbs motions, it can be divided into competitive swimming and practical swimming, early swimming mostly is
regarded as an important part of nobility children education and soldiers training. International swimming
associations has been set up until 1908. In competition, traditional power in world swimming including America,
Australia, Germany and France, and our country’s competitive swimming level now has already entered into
international advanced level