#624 - IRONMAN Frankfurt. Jeff Rothschild: Carbohydrate Manipulation.
Fitter Radio Triathlon Podcast
Jack Moody is hosting this week and we catch up on the racing and news from the weekend. Dr. Jeff Rothschild is back on the show and discusses the critical role of nutrition in athletic performance, focusing on the common mismatches between training and dietary intake. He emphasizes the importance of carbohydrates for training adaptation and the dual role of glycogen as both a fuel source and a signaling mechanism for the body. The discussion covers practical applications of nutrition, daily energy balance, and how athletes can use technology to optimize their dietary strategies. Dr....
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#623 - Relative Energy Deficiency: Lionel Sanders. Christine Byrne
Fitter Radio Triathlon Podcast
We catch up on the racing and news from the weekend. Louise Saggers won the free race entry to IRONMAN Cairns. We found out how her day went. We share Lionel Sander’s YouTube video which centres on his recent experiences with injuries, particularly stress fractures. Lionel tells us what he’s now learned about relative energy deficiency in athletes and the impact on hormonal health. Relative energy deficiency can significantly impact athletic performance and stress fractures are often linked to energy deficiencies. Nutrition plays a crucial role in recovery and overall health and...
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#622 - Creatine with Dr Jeff Rothschild - Tri news and race reviews.
Fitter Radio Triathlon Podcast
We catch up on the racing and news from the weekend. We meet Chris Sturdevant, winner of the free race entry to IRONMAN 70.3 Sunshine Coast Dr Jeff Rothschild is back on the show and this week he talks about creatine. Jeff discusses the multifaceted benefits of creatine, including its impact on brain health, cardiovascular health and overall well-being. He emphasizes the importance of daily supplementation, dosage recommendations and dispels common myths surrounding creatine use. (0:00:00) – Tim calls in from Andorra. (0:07:03) – Racing at the weekend (0:12:04) - Chris Sturdevant ...
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#621 - Kyle Smith
Fitter Radio Triathlon Podcast
We catch up on the racing and news from the weekend. We bring Kiwi Professional Triathlete Kyle Smith back to the show after his recent 4th place at the T100 in San Francisco. Kyle reflects on his personal growth over the last few years plus the challenges he’s faced around health, particularly related to mould exposure and how these issues impacted his performance. We also discuss the evolution and changes in middle distance racing and the importance of maintaining the balance between training and adequate recovery during the pressures of a much longer racing season. The importance of...
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#620 - Dr Jeff Rothschild
Fitter Radio Triathlon Podcast
We catch up on all the racing and news from the weekend. We bring Dr Jeff Rothschild of the Sports Performance Research Institute New Zealand (SPRINZ) back to the show to talk about the science behind fuelling for endurance sports. The discussion focuses on the daily energy requirements for athletes and the evolving perspectives on carbohydrate diets in endurance performance. We cover carbohydrate intake strategies, the science surrounding carbohydrate loading and the importance of electrolyte balance leading into events. Additionally, insights into current research perspectives in sports...
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#619 - Dr Michael Rosenblat
Fitter Radio Triathlon Podcast
We catch up on all the racing and news from the weekend. Dr Michael Rosenblat completed a Doctor of Philosophy (PhD) in Exercise Science at The University of Toronto, a Master of Science (MSc) in Physiotherapy at McMaster University and a Bachelor of Applied Science in Kinesiology at The University of Guelph. He is also a Clinical Exercise Physiologist with a Specialization in High Performance. In our chat with Dr. Michael Rosenblat we discuss his recent work on training intensity distribution and its impact on endurance performance. He reflects on his journey in sports science, the...
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#618 - A Weekend of Racing. Alex Yee.
Fitter Radio Triathlon Podcast
We catch up on all the racing and news from the weekend. We share an excerpt from the World Triathlon Podcast intervew with Alex Yee post his attempt to test himself over the marathon distance at the London Marathon. (0:01:50) – Bev joins Training Peaks Virtual (0:05:26) – We review all the racing from the weekend. (0:43:03) – Alex Yee – is there an IRONMAN in his future (0:46:12) – Excerpt from the World Triathlon Podcast (1:09.00) – Hayden Wilde update LINKS: World Triathlon Podcast with Alex Yee at
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#617 - Steve Allende, Co-Founder and CEO of Plasmaide.
Fitter Radio Triathlon Podcast
We catch up on all the racing and news from IRONMAN 70.3 St George at the weekend. Bev chats to Steve Allende, Co-Founder and CEO of Plasmaide. We discuss the company's involvement in the triathlon community, particularly with elite athletes like Kristian Blummenfelt and Gustav Iden. Steve shares insights into the unique competition that Plasmaide are offering to age group athletes, which offers an opportunity to train with Kristian and Gustav in Font Rumeu in France and receive physiological testing from Dr Alison Heather. The conversation highlights the benefits of Plasmaide's...
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#616 - Prof Alison Heather on Plasmaide.
Fitter Radio Triathlon Podcast
We catch up on the tri news and racing from the weekend and give our thoughts on the announcement that the IM World Champs is moving back to Kona. Alison Heather is a former academic professor whose research has focused for over 24 years’ on the physiology of steroid hormones and their role in health and disease. She has international recognition for her development of bioassays for the detection of steroid hormones. Alison acts as an advisor to many High Performance Sport Teams including those focusing on female athlete health, triathlon, cycling, running and sports supplements and is...
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#615 - IRONMAN Texas Race Review. Performance Enhancing Supplements.
Fitter Radio Triathlon Podcast
We discuss the tri news and review all the racing from the weekend including IRONMAN Texas, Challenge Taiwan and Challenge Gran Canaria. New Zealand blackcurrants have been show to have an impact on endurance performance. We chat to Dr Sam Shepherd to find out more. (0:02:11) – This week IRONMAN Australia Port Macquarie (0:02:50) – Hayden Wilde on a WTCS start list (0:09:41) – Ultro Audio earbuds competition (0:10:27) – Challenge races from the weekend (0:16:23) – IRONMAN Texas race review (0:39:13) – Intro to supplements for performance (0:45:48) – Dr Sam Shepherd ...
info_outlineWe catch up on the tri news and racing from the weekend and give our thoughts on the announcement that the IM World Champs is moving back to Kona.
Alison Heather is a former academic professor whose research has focused for over 24 years’ on the physiology of steroid hormones and their role in health and disease. She has international recognition for her development of bioassays for the detection of steroid hormones. Alison acts as an advisor to many High Performance Sport Teams including those focusing on female athlete health, triathlon, cycling, running and sports supplements and is currently the Chief Scientific Officer for plasmaide
In this conversation, we discuss the supplement Plasmaide, its origins and its benefits for athletes. Dr Heather explains the science behind nitric oxide production, the ingredients in Plasmaide and how it compares to other supplements like beetroot juice. The discussion covers both acute and chronic benefits of Plasmaide, its adaptogenic properties and its influence on carbohydrate metabolism. Dr. Heather also provides practical advice for using Plasmaide safely and effectively, emphasizing the importance of consulting with a healthcare professional before starting any new supplement regimen.
(0:00:00) – A weekend of bike crashes
(0:09:22) – T100 goes to the Gold Coast in 2026
(0:15:51) – The racing from IM703 Venice and IRONMAN Australia
(0:24:16) – IRONMAN World Champs moves back to Kona
(0:40:05) – Dr Alison Heather intro
(0:41:38) – Dr Alison Heather
LINKS:
Dr Alison Heather at https://www.insitugen.com/
Plasmaide at https://plasmaide.com.au/
Live Feisty podcast at https://livefeisty.com/podcasts/feistytriathlon/ironman-goes-backwards-special-world-champs-episode/
Pro Tri News podcast at https://protrinews.buzzsprout.com/1736374/episodes/17067560-episode-217-kona-is-back-with-ironman-ceo-scott-derue
2025 Oceania Triathlon Super-Sprint Championships Runaway Bay at https://triathlon.org/events/2025-oceania-triathlon-super-sprint-championships-