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Jan 27, 2021

“Revised *and* updated, you say? And with a new afterword and an elegant softcover binding that absorbs spills and repels rain? How could it be possibly be available for preorder for just $12.79, shipping Feb. 16?!” amazon.com/gp/aw/d/006249

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Steve Magness and 8 others

Max Paquette

@BiomechMax

May 2

Attention runners in the USA! We have an exciting study in partnership with

@newbalance

and we're looking for runners that fit the criteria listed in the flyer below! Please share and pass along to runners who be interested/fit the criteria! memphis.co1.qualtrics.com/jfe/form/SV_0B

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Apr 30

I'm more of a Timex guy than a Casio guy, but this is a delightful interview with new 2:08 marathoner

@EmileCairess

. Lots of thoughtful insights. runnersworld.com/uk/news/a38710

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It's a great and timely book... and launches in a couple of weeks. Congrats, Christine!

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Christine Yu

@cyu888

I've long admired @sweatscience's work so to get these kind words from him?

"Christine Yu deftly skewers the failings of current sports sci research but also finds encouraging signs that the experiences of women athletes are finally being taken seriously"

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Defecation enhances cerebral perfusion and delays fatigue in elite triathletes - PubMed

I haven't read this and have no comment on it. Just felt somehow compelled to share it (or should I say to... get it out). Defecation enhances cerebral perfusion and delays fatigue in elite triathletes

pubmed.ncbi.nlm.nih.gov

Our results suggest that improved exercise performance after defecation is associated with greater blood availability to compensate deoxygenation in the prefrontal brain region during exercise....

For training frequency, 3X was better than 2X. But contrary to the hypothesis that fast-twitchers might benefit from more recovery, both groups responded similarly to training frequency.

Cool study compares fast-twitch and slow-twitch ppl strength-training one arm/leg 2X/wk and the other arm/leg 3X/wk. Key result: both groups (surprisingly) made similar muscle and strength gains. BUT slow-twitchers needed ~25% more reps to hit failure.

Yes, Even Slow-Twitchers Can Build Bigger Muscles

New data finds that endurance- or speed-oriented muscle fibers don’t determine how you respond to strength training

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Apr 24

Neat in-race data from muggy 2019 World Champs marathons and RWs shows how core temp (w/ ingestible pill) climbed and skin temp (w/ infrared camera) surprisingly dropped. The key factor: moving air (even at run/walk speeds) boosts sweat efficiency.

How Elite Marathoners Handle Hot Conditions

In-race data collected during the world championships sheds new light on how top endurance athletes avoid overheating

How Elite Marathoners Handle Hot Conditions

In-race data collected during the world championships sheds new light on how top endurance athletes avoid overheating

Apr 16

Seems like a longshot, but... :)

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Marathon Shoe Nrd

@MarathonShoeNrd

Apr 14

Hi Twitter, does anyone out there own a pair of the #Fila Racer Plus from 2001 which they could take high resolution photos for an article I'm writing? Thanks so much for your help! #running #marathon #runningshoes @FILAUSA @fila_korea @Rolows_13 @sweatscience

Irene Davis, PhD, PT and 8 others

La Trobe SEMRC

@LaTrobeSEM

Apr 14

Running Symposium: The ladder of bone building 🦴

@rwilly2003

describes how to "rebuild" bone in the runner & which activities may be better than others 👏 #running #bone #health #injury

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Apr 10

"Breathe better" is a seductive promise, whether through breathwork, nasal breathing, canned oxygen, respiratory muscle training, etc. A comprehensive review from

@CIllidi

@NBTiller

et al. weighs the evidence for these & other respiratory interventions.

The Cold, Hard Evidence on Better Breathing for Athletes

There’s plenty of hype about ways of boosting your respiratory system. Some—but not all—of it is real, according to a new review.

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Can exercise help brain health? What two conflicting studies tell us

Apr 10

Two new studies on how exercise improves (or doesn't) cognitive function: 1. an umbrella review emphasizes how weak the causal evidence is; 2. "Mendelian randomization" (a really neat approach) in 250,000 subjects supports a positive effect.

theglobeandmail.com

For years, observational studies have pointed to the benefits of exercise in warding off cognitive decline, but they can’t prove causation

Andrew Huberman Has Supplements on the Brain

Jonathan Jarry

@crackedscience

Apr 7

"Neuroscience professor Andrew Huberman hosts one of the most popular science podcasts. So why does he love dietary supplements so much?" After being asked again and again, I had to dive into The Huberman Lab podcast. And its supplements.

@McgillOSS

mcgill.ca

Combining the calm delivery and pared-down wardrobe of a Sam Harris with the more imposing physique of a Joe Rogan, Andrew Huberman wants to give you science-based tips on how to optimize your

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Replying to

Indeed. If people would like to see you

@ElliottSale

chatting about this and more with me on

@inside_exercise

have a look here.

@mackinprof

has been on too.

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Inside Exercise

@inside_exercise

Feb 24

Now online Interesting chat. It became clear that a lot more work needs to be done in this very important area. Lots of questions/opportunities for further research. Thank you Kirsty for coming on. @ElliottSale Spotify (shorturl.at/nvTY8), YouTube, Apple Podcasts etc

Apr 5

How do strength & training response vary across the menstrual cycle? Actually, there's no strong evidence that they do, says new review. That means it's "premature" to issue general cycle-specific training guidance. Let indiv. experience be your guide.

The Case Against Training Based on Your Menstrual Cycle

A new review weighs the evidence that strength and training adaptations vary across the phases of the menstrual cycle

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Apr 1

Baking soda, Norwegian training, and more: the latest Sweat Science email newsletter is out. Read (and sign up) here: mailchi.mp/alexhutchinson

KC (she/her) and 9 others

La Trobe SEMRC

@LaTrobeSEM

Mar 29

FYI: "Not all running re-training interventions are created equal"

@DrChrisBarton

will present a framework for managing the injured runner

@LaTrobeSEM

's running symposium 👣 R - reduce load I - improve capacity S - shift load K - keep adapting semrc.blogs.latrobe.edu.au/events/running

Mar 28

Some fun data from a 24-hour mountain bike race, including calorie burn measured with doubly labeled water: 9,775 calories. (For context, Giro riders averaged 7,719 cal for 24 days. Western States 100 mile runners averaged 16,310 cal in 26.8 hours!)

The Physiology of a 24-Hour Mountain-Bike Race

Researchers use isotope tracers to accurately calculate calorie burn and other parameters during a grueling full-day ride

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Mar 27

Important topic, and perhaps an unexpected take. Worth a read for researchers, coaches, athletes, exercisers (i.e. everyone).

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Lauren Colenso-Semple

@laurencs25

Mar 27

The evidence does not support widespread recommendations to adjust your training based on menstrual cycle phase. Check out our new paper! frontiersin.org/articles/10.33

Mar 24

Love this.

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David Epstein

@DavidEpstein

Mar 24

An extra-short newsletter — just a single insight from an eminent psychologist, a few months before he passed away at 45. "Happiness is a 2x2 matrix" davidepstein.substack.com/p/happiness-is

Mar 22

This still haunts me. Are my training logs corrupted by bad data?

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Molly Mirhashem

@mollyshirreen

Mar 22

new from @sweatscience, on the difference between "informational" and "motivational" training data, and how much the accuracy of that data really matters for performance: outsideonline.com/health/trainin

Mar 22

Neat study gives subjects incorrect real-time data to see whether data boosts performance via its informational content or just by motivating you to try harder. simple task -> both correct & incorrect info help complex task - > only correct info helps

Two Ways That Tracking Your Training Data Can Boost Your Performance

So-called “augmented feedback” can offer both information and motivation. A new study tries to separate the effects.

I’ve Optimized My Health to Make My Life as Long and Unpleasant as Possible

Thx to ⁦

⁩ for sharing ⁦

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⁩ ⁦

⁩ ⁦

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I’ve done it. After years of biohacking and tweaking, I have become… optimal. Body fat percentage, optimal. Triglycerides, optimal. Dietary fiber, ...

Mar 17

Whoa, this is amazing data!

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Gareth Sandford

@Gareth_Sandford

Mar 16

Discover the incredible women's physiology of Ethiopian long-distance runners who have achieved: Four sub 2:20 marathon and six sub 32 minute 10Ks. Get a glimpse into their unique training and physiological characteristics below...

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Mar 16

When you're trying to swim for 6hrs at 55F/13C, what determines who bombs out with hypothermia and who cruises? Not the wetsuit, according to a new study in which aspiring Channel swimmers swallowed ingestible thermometers. outsideonline.com/health/trainin

Mar 13

Recruiting for a study on female training response, details below:

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Paul Laursen

@PaulBLaursen

Feb 1

Excited that we've reached a stage in remote monitoring to be able to begin contributing to female specific training research. trizone.com.au/athletica-lead

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Molly Mirhashem

@mollyshirreen

Mar 10

"Only about half of the fitness losses suffered by endurance athletes as they get older are attributable to the passage of time. The other half can be chalked up to reduced training." new from

Most People Get Slower with Age. But Is That Inevitable?

Age may be just a number—but so is your weekly mileage

Mar 10

Runners in Ontario: check this out! Should be a lot of fun.

Amazing race by

, and kudos to him for sharing some of his data. Really interesting to see "what it takes" to run (gasp!) 2:05. I wonder if/how his running economy has changed in shoes from different sponsors, and whether any of the other data has changed since 2020.

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Trent Stellingwerff

@TStellingwerff

Mar 6

Obviously, an outstanding area record 2:05:36 race from @CamLevins on the weekend, under the guidance of Victoria legend/coach Jim Finlayson. Maybe, for some, this race was surprising - but see the testing data (thanks Cam for sharing).

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Jane Thornton MD PhD OLY

@JaneSThornton

Mar 1

📢 FREE Masterclass on Sport & Exercise Medicine and MSK health. Mainpro+ CME accredited course for GPs & open to all who want to hear from a stellar international lineup.

@BJSM_BMJ

-approved! Register via QR code or fowlerkennedy.com/events/2023-ma For recordings: returntohealthandperformance.org/media

... and

's first try with Maurten's baking soda was her 600m world record in January (1:23.41), followed by her 800m world leader.

A couple of updates since I wrote this story: Sweden swept the top 4 spots in the women's XC ski sprint yesterday at the World Championships in Planica. That's the group that Tobias Christensson was working with in northern Sweden when I interviewed him for the article

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The Next Big Performance-Booster Is Already in Your Kitchen

Feb 24

For the past few years, a surprising number of world-beating endurance athletes have been slurping down a mysterious soup before their races. Maurten, whose hydrogel upended the sports drink world, believes it's about to do the same with... baking soda. outsideonline.com/health/trainin

Has Maurten finally figured out how to harness the power of baking soda without paying the gastrointestinal price?

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Feb 23

Argh. Make that "Ingebrigtsen." It was right there in the picture! 🙄

Really interesting paper from

@ArturoCasadoAld

et al. lays out the science of the "Norwegian method" of lactate-guided double threshold days, as used by Jakob Ingebrigsten and many others these days.

How the “Norwegian Method” Is Changing Endurance Training

Double threshold days and lactate meters have propelled Jakob Ingebrigtsen and others to the top. Should the rest of us follow suit?

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To be a successful endurance athlete, you have be dialed in to the sensations in your body. At least, that's what I've always claimed. But a new study of "interoception" in distance runners, sprinters, and non-athletes paints a more complex picture.

The Case Against Listening to Your Body

Researchers test the assumption that top athletes are more sensitive to internal cues, with surprising results

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Feb 14

Really important finding to keep in mind when looking at any training study!

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Olli-Pekka Nuuttila

@OPNuuttila

Feb 14

The assumption that you have individually optimized vs. generic training program can itself affect the outcome of the intervention, in this case 1 RM results. "The effects of being told you are in the intervention group on training results: a pilot study " nature.com/articles/s4159

So Mr Bach, will nothing ever be enough to ban Russia from the Olympics? | Sean Ingle

Sean Ingle

@seaningle

Feb 13

Today's Guardian column is on the IOC's lopsided approach to Russia. Isn't it odd that it keeps saying it wants a pathway for Russians to compete in Paris & criticises Ukraine for floating a boycott. Yet nothing about any red lines to keep Russians out?

theguardian.com

The International Olympic Committee is determined to enable Russians to compete in Paris next year despite the unrelenting war in Ukraine

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