Swimming Concept
Competitive swimming is one of the most popular Olympic sports, with varied distance events in butterfly, backstroke, breaststroke, freestyle, and individual medley. In addition to these individual events, four swimmers can take part in either a freestyle or medley relay.
beneficial of swimming..
For heath
Swimming is a good all-round activity because it: keeps your heart rate up but takes some of the impact stress off your body. builds endurance, muscle strength and cardiovascular fitness. ... provides an all-over body workout, as nearly all of your muscles are used during swimming. 
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