It's a heart-to-heart on Spotlight today, as Gareth and Ross kick off by discussing a Discourse question about whether running marathons is bad for your heart? Ross describes five cardiac "risks" that have been documented, giving context and a bit of reassurance in response to theory that excessive endurance training is damaging to heart tissue. We then talk about maximum heart rate, and why it's an imperfect anchor for training prescription and a poor comparison between people. We shift from heart to brain to briefly discuss whether coaches should be sanctioned when players tackle poorly in rugby, and end off with a brief look at two teen phenoms competing in Australia last week, wondering whether their trajectories are inviting unreasonable pressure at too young an age.

Discourse

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Show notes

• Ian's question about heart risk from marathon running, and some excellent Discourse replies - Members only
• The research paper on troponin elevation after marathons, which kicked off the Discourse discussion at the front of today's show
• Good insight and discussion on whether too much exercise is bad for you?
• Here's that article i mentioned where Tim Noakes punched some holes in the theory that marathon runners would be protected against coronary artery disease
• Ultimately, sudden cardiac death in marathon runners is rare. Here's a review that explores just how rare, and explains the risks
• A Discourse thread on max HR and why it's a limited anchor and set ceiling for training prescription and management
• Here's a paper that describes that sub-max HR test that can be used to identify training adaptation, overreaching and early signs of illness by looking at HR recovery after exercise
• Compound Score revisited and re-explained - following last week's Spotlight, Ross shared more thoughts to explain the Compound Score. Here's that article, available to all, but initially on Discourse
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It's a bumper Spotlight in a bumper week of big sports news. To cover it comprehensively, Ross & Gareth are joined by Sean Ingle of The Guardian to discuss the election of Kirsty Coventry to lead the International Olympic Committee. We explore her path to victory, enabled by Thomas Bach's support, and how she might lead the organization through looming challenges, including the integrity of the IOC's bid/host city selection process, and women's sport. On the subject of women's sport, Sean also chats to us about World Athletics' announcement that it will introduce pre-clearance screening for athletes wishing to be eligible for the women's category. It's a move that forms part of Sebastian Coe's declaration to 'doggedly' defend women's sport. We explore how sex screening works, and issues it may raise, and solve.

We then shift to cycling to discuss a remarkable Milan-San Remo performance by Tadej Pogacar, showcasing superiority and versatility not seen in cycling for a very long time. It tees up the compound score, accounting for power output and performance in both absolute and relative terms. A few odds and ends thrown in wrap up a big show.

Show notes

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• Article by guest Sean Ingle on the big issues facing Kirsty Coventry as she enters the IOC fray
• Another by Ingle, this time on the process and dealings behind the IOC Election, including Thomas Bach's role
• Article on Sebastian Coe's announcement of World Athletics' introduction of pre-clearance testing for female eligibility
• Some analysis of the power numbers at the Milan San Remo race, as discussed on the podcast. Take the estimates with a pinch of salt - the high speeds introduce a lot of error
• Brief abstract that introduces the Compound Score in cycling, and how it has the best predictive power for race results
• More comprehensive research article on the compound score (needs access to journal for full read)
• The paper asking the question about "lactic acidosis", to which we all should know the answer
• The answer to the lactate question

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In this Spotlight, Gareth and Ross kick off by looking back at teen sprint phenom Gout Gout's latest performances, which continue to project a spectacular yet unknowable future. Across the Ocean, a young South African put down a teen-sprint marker of his own with a sub-10s performance, and we use those performances to discuss the nuanced, fluid and undefinable element of super-talents in sport. What matters, what doesn't, what is required for entry into the elites, and what makes a difference once there?

We also discuss whether the addition of the Sydney Marathon (among others) to the prestigious World Marathon Majors dilutes their equity, which presents a chance to discuss heat and performance related to both marathons and the currently ongoing Cape Epic. Finally, we chat concussion in the community game, in the aftermath of some misinformed perspectives raised by politicians in the UK about the concussion risk with lower tackle height in the game.

Show notes

Mel Breen wins the 2012 Stawell Gift race from scratch

Bayanda Walazas asymmetric running style

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