m**c
发帖数: 7349 | 1 顶级高手一到两次
Freestyle is a different story.
The breath in freestyle likely reduces speed by slowing the stroke rate,
although the effect on drag is uncertain. In fact, it is the breath that
creates the noticeable difference in stroke rate from one arm to the other
in swimmers like Phelps, Biederman, Lezak and others; creating a pause in
the cycle from the breath.
The majority of world-class swimmers in the 50 meter freestyle will breath
only once or twice. There are some, such as Anthony Ervin, who took no
breaths, and a few, like Dara Torres, that breathe every fourth stroke.
In the hundred, nearly every world class freestyler will breath every cycle
(every two strokes), except the first stroke off the start and turn is
usually held. |
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