h******y
发帖数: 351 | 1 【 以下文字转载自 Biology 讨论区 】
发信人: horsefly (马匪), 信区: Biology
标 题: Olympics: Some facts about Ye Shiwen's swim
发信站: BBS 未名空间站 (Fri Aug 24 13:09:56 2012, 美东)
In the latest issue of Nature.
http://www.nature.com/nature/journal/v488/n7412/full/488459a.ht
Olympics: Some facts about Ye Shiwen's swim
Weimin Zhong,
Hao Wu
& Linheng Li
We write on behalf of the Chinese Biological Investigators Society, a
professional organization of overseas and native Chinese scientists (www.
cbisociety.org), to express our concern over your online News 'Explainer'
about the performance of Ye Shiwen, a 16-year-old Chinese swimmer who won
gold medals in the 200- and 400-metre individual medley during the London
2012 Olympics http://doi.org.mutex.gmu.edu/h55; 2012). We feel strongly that you overlooked some important facts.
You join in the widespread speculation that Ye's performance was anomalous,
in which it has generally been implied that no one else has accomplished
such a feat before without the aid of performance-enhancing drugs — a
premise that, in our view, stems from data cherry-picked to support an
unfounded accusation.
You indicate that Ye's 400-metre performance was about 7 seconds faster than
a time she set at a major meet a year earlier. Ye's personal best was
actually set in 2010, when she was 14 years old. She improved her
performance at the Olympics final by 5s over her earlier personal best — a
feat that is not anomalous, but is expected for elite swimmers of Ye's age
as they grow bigger and stronger.
COURTESY GUANGBO CHEN, STO WERS INST. FOR MED. RES.
There are many examples of elite swimmers who showed a significant
improvement at a young age. For example, Australian swimmer Ian Thorpe took
5s off his 400-metre freestyle time between the ages of 15 and 16, and UK
swimmer Adrian Moorhouse, Seoul Olympics gold medallist in 1988, improved by
4s in the 200-metre breaststroke aged 17. The same happened to the other
seven finalists in the 2012 Olympics women's 400-metre medley (see 'Young
swimmers' improvements'). Also, Rūta Meilutytė, a 15-year-old
Lithuanian swimmer, improved her personal best by more than 4% in the 100-
metre breaststroke, compared with Ye's improvement of 2% in the 400-metre
medley.
You say that Ye “raised eyebrows” by her showing in the last 50 metres of
the race, noting that she swam faster than US swimmer Ryan Lochte when he
won gold in the men's 400-metre medley, the second-fastest time ever for
that event. What you do not mention is that Ye was actually more than 23s
slower over 400metres than Lochte, an eternity for elite swimmers at this
distance.
In fact, the time for Lochte's last 50 metres is nowhere near the second-
fastest ever for that event: several other swimmers in the same men's final
were faster than he was and faster than Ye. Lochte ranked only fifth in the
last 50 metres, at 29.1s, which was significantly slower than Japan's Yuya
Horihata (27.87s) and three other swimmers competing in the same event. Ye's
time was 28.93s.
All of this information is available on the Internet. It is unfortunate that
Nature seems to have put a stamp of scientific approval on the Western
media's unsubstantiated speculation that Ye's feat is humanly impossible
without the aid of performance-enhancing drugs.
We emphasize that our data serve only to provide a more complete backdrop to
Ye's achievement, and not to negate her spectacular performance in winning
two golds and shattering the world record.
Author information
Affiliations
Yale University, New Haven, Connecticut, USA.
Weimin Zhong
Children's Hospital Boston, Harvard Medical School, Boston,
Massachusetts, USA.
Hao Wu
Stowers Institute for Medical Research, Kansas City, Missouri, USA.
Linheng Li
Corresponding author
Correspondence to:
Hao Wu | A*****a
发帖数: 52743 | 2 这个能放简历里不
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【在 h******y 的大作中提到】
: 【 以下文字转载自 Biology 讨论区 】
: 发信人: horsefly (马匪), 信区: Biology
: 标 题: Olympics: Some facts about Ye Shiwen's swim
: 发信站: BBS 未名空间站 (Fri Aug 24 13:09:56 2012, 美东)
: In the latest issue of Nature.
: http://www.nature.com/nature/journal/v488/n7412/full/488459a.ht
: Olympics: Some facts about Ye Shiwen's swim
: Weimin Zhong,
: Hao Wu
: & Linheng Li
|
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