History of Swimming

	Revision 3 . . (edit) November 7, 2001 8:20 pm by Magnus [formatting tidied up on list]
	Revision 2 . . September 5, 2001 6:53 pm by (logged).9.128.xxx [Added surf lifesaving, open-water swimming.]
	Revision 1 . . September 5, 2001 6:50 pm by (logged).9.128.xxx [new article]

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Difference (from prior major revision) (minor diff, author diff)

Changed: 15,21c15,21

* Freestyle events place no restrictions on what action the competitors use. In practice, all freestyle events are swum using the [Australian Crawl]?. Events are held at distances from 50 metres to 1500 metres.* Butterfly? events require that the swimmer's actions retain bilateral symmetry (the left side of the body has to do the same as the right). It is swum over 50, 100 and 200 metres. Butterfly, as it is typically performed, is the most strenuous stroke to maintain and few recreational swimmers can perform the stroke at all. * Breaststroke? places the additional restriction that the swimmer's arms must remain below the water at all times. It is the slowest stroke, and swum over 50, 100 and 200 metres. * Backstroke? places no symmetry restrictions, but swimmers must lay on their back at all times (except when turning) to perform the stroke. It is also swum over 50, 100 and 200 metres.

* Freestyle events place no restrictions on what action the competitors use. In practice, all freestyle events are swum using the [Australian Crawl]?. Events are held at distances from 50 metres to 1500 metres. * Butterfly? events require that the swimmer's actions retain bilateral symmetry (the left side of the body has to do the same as the right). It is swum over 50, 100 and 200 metres. Butterfly, as it is typically performed, is the most strenuous stroke to maintain and few recreational swimmers can perform the stroke at all. * Breaststroke? places the additional restriction that the swimmer's arms must remain below the water at all times. It is the slowest stroke, and swum over 50, 100 and 200 metres. * Backstroke? places no symmetry restrictions, but swimmers must lay on their back at all times (except when turning) to perform the stroke. It is also swum over 50, 100 and 200 metres.

Added: 27a28,33

There are also competitions involving open-water swimming, and notable feats of open-water swimming endurance. Swimming across the English Channel is a popular challenge for these determined individuals. Swimming is also an important part of the sport of Surf Lifesaving, which evolved from the training activities of rescuers who patrol popular swimming beaches and save those who tire or injure themselves out to sea.

Changed: 37c43

* [Janet Evans]?

* [Janet Evans]?