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The sociology of leisure or leisure sociology is the study of how humans organize their free time. Leisure includes a broad array of activities, such as sport, tourism, and the playing of games. The sociology of leisure is closely tied to the sociology of work, as each explores a
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[f] ^ For the SCM women's 200 free American Record, Allison Schmitt swam a faster time at the 2009 Duel in the Pool (1:51.67); however, the time has not been recognized as a record by USA Swimming. [g] ^ For the SCM women's 400 IM American Record , Julia Smit at the 2009 Duel in the Pool set a then-World Record of 4:21.04; however, this time ...
In the short course (25 metres) swimming events, the world's governing body recognizes world records since 3 March 1991. Times have consistently dropped over the years due to better training techniques, new developments in the sport and swimwear changes (e.g. goggles were not widely used until the 1970s, providing for considerable expansion of ...
This article includes the world record progression for the 4×200 metres freestyle relay, and it shows the chronological history of world record times in that competitive swimming event. The 4×200 metres freestyle relay is a relay event in which each of four swimmers on a team swims a 200-metre freestyle leg in sequence.
This article includes the world record progression for the 4×50 metres freestyle relay and it shows the chronological history of world record times in that competitive short course swimming event. The 4×50 metres freestyle relay is a relay event in which each of four swimmers on a team swims a 50-metre freestyle leg in sequence.
It is possible to set an individual world record in the 50 metres backstroke by swimming the backstroke first leg of the 4×50-metre medley relay, except in the mixed relay. [5] Swimming the other three legs of the medley relay cannot qualify as world records as FINA criteria require a "static start" for world record recognition – swimming ...
In short course (25 metres) swimming events the world's governing body recognizes world records since March 3, 1991. The drop in world record times in 2008-2009 coincided with the introduction of polyurethane suits from Speedo ( LZR , 50% polyurethane ) in 2008 and by Arena ( X-Glide ), Adidas (Hydrofoil) and Italian swimming suit manufacturer ...