How to swim fast pt. 2: Train, because Jaked and LZR are banned

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My new Sweat Science columns are being published at www.outsideonline.com/sweatscience. Also check out my new book, THE EXPLORER'S GENE: Why We Seek Big Challenges, New Flavors, and the Blank Spots on the Map, published in March 2025.

- Alex Hutchinson (@sweatscience)

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The big news in swimming is that the buoyant polyurethane suits that have made a mockery of world records for the past 17 months — first Speedo’s LZR, and more recently the Jaked suit — have finally been banned by international authorities, effective starting in 2010. To put this in context:

In the Olympic individual events, only four world records remain from the pre-2008, pre-polyurethane era: the men’s 400- [UPDATE: uh, scratch that: Ian Thorpe’s record just went down] and 1,500-meter freestyles, and the women’s 100 breaststroke [that one’s gone too] and 100 butterfly [and so’s that one].

This is the right decision, and a big relief for anyone who wants the competition to be among athletes rather than the R&D arms of big companies.

[T]hey enabled swimmers without an ideal physique or impeccable conditioning to be more competitive. Squeezed into the corset-like suit, a muscled and stocky body is as streamlined as a long and lean one; a soft abdomen as effective as six-pack abs. “The thing that’s really hurt more than anything else is the whole suit situation has devalued athleticism,” [U.S. swim coach Dave] Salo said. “A lot of kids who aren’t in very good shape can put on one of these suits and be streamlined like seals.”

Of course, that doesn’t prevent some whining from athletes who like the suits:

“Basically, when we roll back, racers are going to hurt a lot more than they hurt currently, which is not something I’m looking forward to,” [U.S. swimmer Matt] Grevers said.

The big question now: what to do about the world records that have been set over the pact few years. After all, it could take a long time to eradicate them with normal suits.

“Jaked” suit chalks up more swimming records

THANK YOU FOR VISITING SWEATSCIENCE.COM!

My new Sweat Science columns are being published at www.outsideonline.com/sweatscience. Also check out my new book, THE EXPLORER'S GENE: Why We Seek Big Challenges, New Flavors, and the Blank Spots on the Map, published in March 2025.

- Alex Hutchinson (@sweatscience)

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There’s a nice article in today’s Globe and Mail about Amanda Reason, the 15-year-old swimmer who set a world record in winning the 50-metre breaststroke at the Canadian world championships trials on Wednesday. Of course, records in swimming aren’t what they used to be, as I complained last month. Sure enough, the article notes:

Amanda has sliced chunks off her best times this year, something she credits to her new team and coach.

Others have also pointed to her new swimsuit, called the Jaked, which is the latest evolution in the skin-tight synthetic suits that helped swimmers break more than 120 world records in the past couple years. Continue reading ““Jaked” suit chalks up more swimming records”

How to swim faster without training

THANK YOU FOR VISITING SWEATSCIENCE.COM!

My new Sweat Science columns are being published at www.outsideonline.com/sweatscience. Also check out my new book, THE EXPLORER'S GENE: Why We Seek Big Challenges, New Flavors, and the Blank Spots on the Map, published in March 2025.

- Alex Hutchinson (@sweatscience)

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You may remember the avalanche of world records in the swimming pool last summer in Beijing, thanks to the reduced drag of Speedo’s new LZR suits. (Olympic records fell in all but two events!) The Science of Sport has a very interesting post about how records are continuing to fall this year, thanks to an even newer generation of suits, such as the polyurethane-covered suit worn by Frederick Bosquet to break the 50m freestyle record (see picture):

So good are the new suits, that Bosquet, a man who had never, in 7 years, made an Olympic final, managed to smash 0.34 seconds off the old world record in the shortest event in the pool.

Continue reading “How to swim faster without training”

Another data point on compression socks

THANK YOU FOR VISITING SWEATSCIENCE.COM!

My new Sweat Science columns are being published at www.outsideonline.com/sweatscience. Also check out my new book, THE EXPLORER'S GENE: Why We Seek Big Challenges, New Flavors, and the Blank Spots on the Map, published in March 2025.

- Alex Hutchinson (@sweatscience)

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The Mt. SAC Relays, a traditional season-opener for many North American track and field stars, has been taking place this weekend. Further to our discussion of compression socks last week, I note this photo by Image of Sport‘s Kirby Lee of U.S. 5,000-metre runner Chris Solinsky showing off the latest in knee-high Nikes.solinsky

While Solinsky ran a fine time of 13:18.41, he did wind up getting outkicked by the other two runners in the picture, offering further evidence that facial hair and tattoos still trump compression socks in the final straightaway.

Jockology: compression garments

THANK YOU FOR VISITING SWEATSCIENCE.COM!

My new Sweat Science columns are being published at www.outsideonline.com/sweatscience. Also check out my new book, THE EXPLORER'S GENE: Why We Seek Big Challenges, New Flavors, and the Blank Spots on the Map, published in March 2025.

- Alex Hutchinson (@sweatscience)

***

This week’s Jockology column on compression garments is now up on the Globe site. I’ll be interested to see what people think, because it covers a lot of ground. The science behind compression socks is very different from the science behind compression shorts — not to mention Allen Iverson’s compression arm sleeve, and the full-body compression suits that companies like Skins are hyping — so it’s hard to generalize about whether compression garments in general work.

I was pretty skeptical when I started researching this column, but I uncovered a lot more research than I expected — and I also heard some pretty ringing endorsements from, among others, William Kraemer, one of the very big names in sports research. On the other hand, given the impossible-to-blind nature of compression garments, I can’t quite shake my worries that it’s all a big placebo. Anyone have personal experience with this stuff?