The Real Science of Sport Podcast Is Exercise for Weight Loss a Waste of Time? / Doping Convictions, Conundrums and Coital Contaminations / Heat Stress Hacks
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Oct 31, 2025 The discussion kicks off with an analysis of various doping cases, including a complex ban for marathon runner Ruth Chepngetich. They dive into Imogen Simmonds' unique contamination defense involving her partner. The podcast also tackles the metabolic costs of exercise, debating whether it truly aids in weight loss, with conflicting studies on energy expenditure. Finally, the hosts explore innovative heat training techniques and weigh in on impressive athletic feats, like Kipchoge's sub-2 marathon versus Sorokin's 100-mile record.
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Chepngetich's Confused Doping Admission
- Ruth Chepngetich initially blamed contaminated supplements then later admitted to taking a housemaid's medication containing HCTZ.
- Her case produced a three-year ban after a confusing series of explanations and a late admission reduced a potential four-year sanction.
Records Aren't Erased Retroactively
- Anti-doping rules only annul performances linked to detected banned substances at the time of the performance.
- That principle leaves Chepngetich's marathon world record intact despite later positive tests.
Partner Contamination Cleared An Athlete
- Ironman athlete Imogen Simmonds' ligandrol positive was cleared after evidence showed her partner used the substance and she had a prior clean test.
- Frequent testing closer together helped validate contamination as the likely cause.
