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The flutter kick is the kick which takes the most amount of energy and therefore it is the kick which will cause you to breathe the heaviest. The flutter kick is your power kick. This is the kick you use to move rapidly, or against strong current. It is the kick that allows you to move with the most force in the water. It is also the kick, which because it moves so much water, and because there is really no rest phase in the kick, will consume the most gas. The flutter kick is best used when you either need to move quickly, or against a strong current.
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