Spotlight: News Roundup / Forgiveness for Dopers? / Carbon Monoxide Banned / Yellow Cards For Head Injuries Only

We have a news-heavy Spotlight for you this week, with stories from athletics, cycling and Rugby League to discuss. Shelby Houlihan's return from a doping ban has Gareth wondering about second-chances and forgiveness for dopers? Cycling's authorities met at the Cyclocross World Champs in Lievin and agreed to regulate the use of carbon monoxide and to prevent its misuse for performance enhancement. We talk about that decision and its details, and how it's a positive step, despite some recognized limitations. Cycling safety is also under the spotlight, with the tragic deaths of cyclists around the world a reminder of the perils of the sport, particularly during training.

Finally, Rugby League is considering a change to how players are sent off for high tackles, with a proposal to give yellow cards only when the player on the receiving end of the illegal tackle fails an off-field test indicating possible concussion. Proposed as a means to "get more consistency", Ross explains that if anything, it introduces a (for now) random, unpredictable outcome variable in the decision that will compromise consistency, and may detract from player welfare and behaviour change initiatives.

But first, we kick off the show with our Discourse-first birthday announcement, a thanks to all our fabulous followers, and then revisit last week's Spotlight on carbohydrate requirements to explain why elites need to fuel at rates the rest of us needn't aspire to emulate.

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Show notes

• The paper Ross alluded on the show, that gives an example of relative carb and fat use during exercise
• Article on the proposal to give yellow cards only when the ball carrier fails the head injury assessment in Rugby League

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