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When sculling, many swimmers just settle for the standard sweep of the hands. Olympian Kim Vandenberg shows a more advanced approach.

Why do it:
Water is a dynamic substance, always changing, so understanding that a pull may sometimes be narrower or wider than anticipated is a great skill to learn.

How to do it:
1) Kim starts with head up front scull, with a slight flutter kick behind her.
2) Start with a few large, wide, slow sculls of the hands...
3) Then switch to a few small, narrow, quick sculls of the hands.

How to do it really well (the fine points):
During the transitions between slow and fast sculling, keep the head absolutely stable just above the surface of the water. Also, just because you're speeding up the hands, keep the flutter kick at a consistent speed, only acting as a supporting force to keep the hips up.

Watch more of Kim's great swimming at this link.