A wrap-up of the best stories on our Discourse channel: Spring marathon season: The top performers / Should Eliud Kipchoge go to the Paris Olympics? / Why track and field athletes are earning prize money in Paris for the first time / Is the UCI doing enough to ensure the safety of pro cyclists? / China's doping controversy sparks division in the anti-doping world.

SHOW NOTES:

The Guardian story on prize money in athletics at the Paris Olympics

The Guardian story on the 23 Chinese swimmers who won Olympic golds after testing positive for banned drug

WADA statement on the case of the 23 swimmers

Travis Tygart from USADA releases a statement about WADA statement

WADA statement following comments by Tygart

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Building on from our previous discussions on optimal fuelling for endurance exercise, in this episode we go deep into the details of why carbohydrates are the rocket fuel for our bodies, and how we can take advantage of metabolic agility and different fuel strategies to unlock performance gains. To do this, we are joined by Dr Jamie Whitfield, a postdoctoral researcher in exercise nutrition and an expert in muscle physiology and metabolism. We explore how your body ‘chooses’ whether to burn fats or carbs as fuel and which carbs it prioritizes as we change our intensity and diet. We discuss whether fasting or feasting before exercise is beneficial, and we learn whether ketogenic diets hinder or enhance exercise performance.

SHOW NOTES:

Jamie’s X account: @jwhitfie

Jamie’s page at the ACU

The article by Jamie and a former guest, Prof Louise Burke, responding to Prof Tim Noakes on Keto diets and performance. The entire point-counterpoint is available at the link: https://pubmed.ncbi.nlm.nih.gov/38485731/

A research study that Jamie referred to that looked at how ingesting carbohydrates at different rates affected total carbohydrate use during exercise: https://link.springer.com/article/10.1007/s00421-022-05019-w

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In this special episode we join an exclusive panel discussion - in partnership with World Rugby - to debate the future of the sport as it battles to find a balance between the welfare and safety of players and the enjoyment of the game by both participants and spectators. On the panel is Dr Eanna Falvey, World Rugby’s Chief Medical Officer, and former British & Irish Lions Team Doctor; Kate Zachary, the experienced American women's captain and veteran of two World Cups; Ugo Monye, an English rugby pundit/commentator and former rugby union player who played 14 times for England, 241 times for his only club Harlequins and played twice for the British & Irish Lions on their 2009 tour to South Africa; English Test player Sarah Bern, who was shortlisted for World Rugby’s Women’s Player of the Year award in 2019 and our very own co-host Prof Ross Tucker, who is also a Research Consultant and Independent Scientist with World Rugby.

SHOW NOTES:

The videos from the entire Welfare Week, not just those preceding this session, will be available on the World Rugby site soon. They're not out just yet, unfortunately, but check back here in the next few days for the specific links.

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It's one of the hottest topics on our Discourse channel but can World Rugby's new law proposasl preserve the spectacle of the game while still ensuring player safety? The team dig into some of the changes being trialled and proposals for more changes.

Plus ultra runners Camille Herron - who broke six world endurance running records on her way to a new women's six-day record - and Jasmin Paris - who became the first female to finish the legendary Barkley Marathon - have raised the question of how women compare to men in endurance sport. Is the gap closing?

Plus why did a group of 26 independent scientists (including Ross) publish a paper to refute the IOC's framework and academic paper on transgender athletes?

Support our work on Patreon HERE at and get free access to our Discourse channel HERE

SHOW NOTES:

Rugby rule changes on our Discourse group.

https://scienceofsportpodcast.discourse.group/t/world-rugby-new-plans-for-the-game/1197/4

Reassessing the use of the TMO in rugby

World Rugby wants to ­overhaul TMO protocol which has come under widespread criticism for bringing too many lengthy stoppages to the game. 

Women's Ultrarunning

Discourse discussion on the Barkley marathon

Sean Ingle's article on Jasmin Paris' Barkley success

Transgender Paper

The academic paper refuting the IOC's Framework and scientific argument

Our Discourse discussion on the paper and the issues

More than 100 elite British sportswomen have told the BBC they would be uncomfortable with transgender women competing in female categories in their sport.

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Never-say-die Maddie le Roux may have been forced to give up her dream of becoming a professional cyclist until the Zwift Academy changed her life and her career. Here's how hard work and pure determination helped this bubbly 27-year-old turn a dream into a reality. Get bonus content on Patreon

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Is the field of sports science facing a credibility crisis? According to guest Dr Joe Warne, key instigator of the Sports Science Replication Centre at the Technological University in Dublin, most of the research done in the field is unreliable. So what is the true picture, how can studies be done better, what role do journals play in ensuring better standards and how do consumers discern the good from the bad?

Show notes:

• Our Patreon page, where you can sign up for access to the Discourse and other benefits
• The Discourse discussion, for all the post podcast discussions, insights into sports science, and even training and injury prevention advice. For Patrons only!
• Joe Warne's original post on Discourse that inspired this episode (Patron only)
• Simona Halep is cleared to play. We'll wait for the full CAS Decision for more discussion of this decision, but if you want to read the previous decision that led to the four year ban, it's at this link
• For Patrons, via Discourse, more discussion about Halep's ban and clearing can be found here
• Article on the cycling race in Spain that saw 130 riders out of 182 not finish, and anti-doping had shown up. The degree to which the two are linked remains unclear, as discussed
• Joe Warne's Sports Science Replication Center website
• One example of a paper that Warne's group has had published on this issue

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Knowing how to measure and train close to your VO2Max may lead to big performance gains. But what is VO2Max and what's the best way to use it? We also discuss the latest developments around rugby's smart mouthguard and the announcement by World Athletics that they are trialling a new way of measuring the long jump which involves a take-off zone rather than a take-off mark. And no, it's not an April Fools joke!

SHOW NOTES

The New Science of Sport Discourse - a Patron exclusive, a community that we aspire to make the most well-informed forum on sports science in the world: https://scienceofsportpodcast.discourse.group/. Log in with your patron details

Become a Patron of The Science of Sport to get access to the community: https://www.patreon.com/thescienceofsport

The IFSC Policy on RED-S

Article on that RED-S policy, including athlete interviews

The Long Jump article re changing of the laws

The BBC article on the mouthguards in rugby. Full of holes and errors, a bit of misunderstanding, and some outright dishonesty, which we tried to explain and address in the show

The paper on the sub-2 hour marathon physiology that shows how those elite runners can get to 90% of VO2max for two hours

A more lay explanation of the 2 hour marathon, again discussing how close to max elites can run

Paper on how different durations of interval training affect Power, HR and RPE, which may be useful to guide your choice of interval session structure

The research study that shows how 8 min blocks at close to VO2max improves VO2max and performance, and that the more time you spend close to VO2max, the greater the benefit

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Can you make your own sports drink and what would be the right mix? Here's what to look for. The team also tackles (see what we did there!) the use of smart mouthguards in rugby, whether trail star Stian Angermund was really guilty of doping, why parkrun has removed some of its records from its website and if the controversial Enhanced Games has any chance of succeeding.

SHOW NOTES

Stian Angermund Doping Case

Reigning world short-course trail running champion Stian Angermund says he is innocent and “utterly bewildered” after testing positive for banned substance chlorthalidone after winning the 55km OCC event at the Ultra-Trail du Mont-Blanc for the second time last year.

Also the Quartz WADA crossover

https://runningmagazine.ca/trail-running/anti-doping-in-trail-and-ultrarunning-is-the-quartz-program-enough/

James Magnussen and the enhanced games

https://www.theguardian.com/australia-news/2024/feb/09/australian-swimmer-james-magnussen-enhanced-games-drug-taking

Parkrun removes records

https://www.parkrun.com/blog/news/2024/02/08/changes-to-statistics-on-the-parkrun-websites/

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The team are joined by renowned sports dietician, Australian Louise Burke, to discuss everything from keto and fasting to the latest guidelines in fueling and nutrition in sport. Burke has spent over 40 years working in the field of sports nutrition and is an academic and author. She was the head of sports nutrition at the Australian Institute of Sport (AIS) throughout its existence from 1990 to 2018 and in 2018 was appointed Chief of AIS Nutrition Strategy. Since 2014, she holds the chair in sports nutrition in the Mary MacKillop Institute for Health Research, Australian Catholic University.

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Welcome to the Science of Sport Discourse. A monthly wrap of all the stories doing the rounds on our Patreon and newly-launched Discourse channel. Want to be part of the discussion? Become a supporter of the Science of Sport Podcast on Patreon HERE and get free access to our exclusive Discourse channel moderated by Gareth Davies.

SHOW NOTES

The New Science of Sport Discourse - a Patron exclusive, A community that we aspire to make the most well-informed forum on sports science in the world: https://scienceofsportpodcast.discourse.group/. Log in with your Patron details.

Become a Patron of The Science of Sport HERE

The Valieva doping story - now banned for four years. Sean Ingle wrote the story that summarises the case HERE

After we discussed the case on the show, the full decision was published, which revealed that Valieva’s team had blamed a contaminated strawberry cake for the test. We’ll touch on this in our next show. READ MORE

The full decision in the case of Michael Saruni, now banned after trying to send a friend to provide a doping test

An update on the Enhanced Games, which, as you’ll hear on the pod, Mike thinks is complete “bollocks”

The documentary about rugby’s referees at the 2023 Rugby World Cup. Well worth a watch.

Track and field will soon join the docuseries trend

Sean Ingle’s article on rugby risks in children, including mention of the call to ban tackling and rugby in Under 18s, and the mixing of age grades

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Swiss rider Marcel Guerrini is at the top of the pile when it comes to the world's best XC mountain bikers. The team take a look into his world to talk about sacrifice, training, race tactics and pacing. Guerrini is a regular top-five finisher at World Cups and is aiming to qualify for the Olympics in 2024... not an easy task when you come from the strongest mountain biking nation in the world. Get bonus content on Patreon

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