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  2. Streamline (swimming) - Wikipedia

    en.wikipedia.org/wiki/Streamline_(swimming)

    Streamline form is a swimming technique that is used underwater in every stroke. At the start of a race or on a turn, streamline form is used, usually along with a dolphin kick or flutter kick, to create the least amount of resistance to help the swimmer propel as far as they can.

  3. Swimming pool sanitation - Wikipedia

    en.wikipedia.org/wiki/Swimming_pool_sanitation

    An electrically operated water pump is the prime motivator in recirculating the water from the pool. Water is forced through a filter and then returned to the pool. Using a water pump by itself is often not sufficient to completely sanitize a pool. Commercial and public pool pumps usually run 24 hours a day for the entire operating season of ...

  4. Swimming - Wikipedia

    en.wikipedia.org/wiki/Swimming

    Efficient swimming by reducing water resistance involves a horizontal water position, rolling the body to reduce the breadth of the body in the water, and extending the arms as far as possible to reduce wave resistance. [7] Just before plunging into the pool, swimmers may perform exercises such as squatting. Squatting helps enhance a swimmer's ...

  5. Front crawl - Wikipedia

    en.wikipedia.org/wiki/Front_crawl

    The front crawl is a very technical stroke that varies based on the swimmers physique, conditioning, and context. Possible context factors include: competition type, water conditions, and the swimmer's goal. The starting position for front crawl is known as the "streamline" position.

  6. Treading water - Wikipedia

    en.wikipedia.org/wiki/Treading_water

    Treading water or water treading is what a swimmer can do while in a vertical position to keep their head above the surface of the water, while not providing sufficient directional thrust to overcome inertia and propel the swimmer in any specific direction. As it expends less energy than traditional strokes, it is often used by swimmers to rest ...

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  8. Swimming stroke - Wikipedia

    en.wikipedia.org/wiki/Swimming_stroke

    Breaststroke: performed face down in the water without rotating the torso. The arms stay in the water and move synchronously, while the legs perform a whip kick (which is sometimes called a breaststroke kick). It is possible to keep the head elevated out of the water throughout the stroke, although the head usually dips in and out.

  9. Backstroke - Wikipedia

    en.wikipedia.org/wiki/Backstroke

    Beginners frequently let their posterior and thighs sink too low, which increases drag. To avoid this, the upper legs have to be moved to the extreme down position at each kick even with a little help by the back and the foot tips have to be fixed in the extreme lower position and the head is held out of the water to act as a counter-weight.