资讯

No flutter kicking is allowed. The butterfly is visually impressive, as athletes often appear to be leaping out of the water with each stroke. The butterfly technique initially developed from ...
Unless you spend time perfecting a breaststroke (frog) kick through the year, your best bet is to go with ... see what you need to be doing with both techniques to be more efficient with the ...
Various floating and treading techniques are explained, including the rotary kick, scissors kick, and breaststroke kick. The film also covers how to modify strokes for swimming with heavy clothing ...