
That Triathlon Show
That Triathlon Show is the podcast for triathletes of all levels who want to train smarter and race faster. With over 600 episodes and millions of downloads since 2017, this show cuts through the noise and misinformation, delivering practical, no-nonsense advice rooted in both the art and science of training and performance.
The podcast features in-depth interviews with the world’s best coaches, top sports scientists, and elite athletes. Each episode dives into the nuances of training methodology, performance optimization, and race-day execution, providing insights you can apply right away. Whether you're preparing for a supersprint or an Ironman, or focusing on a single sport like swimming, cycling, or running, you'll find expert guidance and relevant content here.
The podcast is hosted by Mikael Eriksson, a former engineer now coaching professional and age-group athletes. Mikael is a Level III certified coach with over a decade of experience in coaching.
Join a global community of dedicated triathletes and take your performance to the next level. Learn more at www.scientifictriathlon.com/podcast.
Latest episodes

Apr 8, 2021 • 49min
Group training: pros, cons, and how to do it right | TTS Thursday #6
Group training: pros, cons, and how to do it right | TTS Thursday #6 Options and contexts for group training in triathlon and endurance sports Pros and cons of group training Evidence of the benefits of group training How to strategically use group training to maximise its benefits and your performance improvements LINKS AND RESOURCES: Scientific Triathlon website Coaching Training Plans TTS Thursday Episode Archive Cohesion and performance in sport: a meta analysis - Carron 2002 Rowers' high: behavioural synchrony is correlated with elevated pain thresholds - Cohen 2010 Social Bonds and Exercise: Evidence for a Reciprocal Relationship - Davis 2015 SPONSORS: ZEN8 - The ZEN8 Indoor Swim Trainer is a tool for time-crunched triathletes looking to improve swim specific strength and technique. Trusted by BMC PRO Triathlon Team, age-group triathletes, coaches and physios around the world. Visit zen8swimtrainer.com/tts for 20% off your order. ROKA - The finest triathlon wetsuits, apparel, equipment, and eyewear on the planet. Trusted by Javier Gómez, Gwen Jorgensen, Flora Duffy, Mario Mola, Lucy Charles and others. Visit roka.com/tts for 20% off your order. RATE AND REVIEW: If you enjoy the show, please help me out by subscribing, rating and reviewing. CONTACT: Want to send feedback, questions or just chat? Email me at mikael@scientifictriathlon.com or connect on Instagram, Facebook, or Twitter.

Apr 5, 2021 • 1h
The menstrual cycle and oral contraception - impact on exercise performance with Kelly McNulty | EP#280
Kelly McNulty is a PhD candidate at Northumbria University. Kelly's research investigates the effect of the menstrual cycle and hormonal contraceptive use on performance, recovery, and adaptation in women in sports. In this interview, Kelly walks as through the evidence-base and practical recommendations for all female athletes and coaches of female athletes. IN THIS EPISODE YOU'LL LEARN ABOUT: -The different phases and hormonal changes of the menstrual cycles -How these changes (theoretically) might impact exercise performance -The actual evidence-base and state of the science on menstrual cycle phase and its impact on exercise performance -Practical advice for individualising your approach to training according to the menstrual cycle phases -The evidence-base and state of the science on hormonal contraception use and its impact on exercise performance -General advice and takehome messages for female athletes SHOWNOTES: https://scientifictriathlon.com/tts280/ SCIENTIFIC TRIATHLON AND THAT TRIATHLON SHOW WEBPAGE: www.scientifictriathlon.com/podcast/ SPONSORS: ZEN8 - The ZEN8 Indoor Swim Trainer is a tool for time-crunched triathletes looking to improve swim specific strength and technique. Trusted by BMC PRO Triathlon Team, age-group triathletes, coaches and physios around the world. Visit zen8swimtrainer.com/tts for 20% off your order. ROKA - The finest triathlon wetsuits, apparel, equipment, and eyewear on the planet. Trusted by Javier Gómez, Gwen Jorgensen, Flora Duffy, Mario Mola, Lucy Charles and others. Visit roka.com/tts for 20% off your order. LINKS AND RESOURCES: Kelly's website, Twitter and Research Gate "The period of the period" podcast, Twitter, and Instagram The Effects of Menstrual Cycle Phase on Exercise Performance in Eumenorrheic Women: A Systematic Review and Meta-Analysis The Effects of Oral Contraceptives on Exercise Performance in Women: A Systematic Review and Meta-analysis RED-S (Relative Energy Deficiency in Sports) with Margo Mountjoy | EP#233 Training during and after pregnancy with Jocelyn McCauley | EP#33 RATE AND REVIEW: If you enjoy the show, please help me out by subscribing, rating and reviewing: www.scientifictriathlon.com/rate/ CONTACT: Want to send feedback, questions or just chat? Email me at mikael@scientifictriathlon.com or connect on Instagram, Facebook, or Twitter.

Apr 1, 2021 • 46min
Home-based Strength Training | TTS Thursday #5
Home-based Strength Training | TTS Thursday #5 Objectives and importance of strength training for triathletes and endurance athletes Equipment for home-based strength training Structure of home-based strength workouts Recommended exercises How strength workouts fit into your overall triathlon program LINKS AND RESOURCES: Scientific Triathlon website Coaching Training Plans TTS Thursday Episode Archive All previous strength-related episodes on That Triathlon Show 5 Different Types Of Resistance Bands And The Benefits Of Each SPONSORS: Precision Hydration - One-size doesn't fit all when it comes to hydration. Take Precision Hydration's FREE sweat test and learn how you should hydrate. Use the discount code THATTRIATHLONSHOW15 to get 15% off your order OR use the code THATTRIATHLONSHOW and get your first box for free. ROKA - The finest triathlon wetsuits, apparel, equipment, and eyewear on the planet. Trusted by Javier Gómez, Gwen Jorgensen, Flora Duffy, Mario Mola, Lucy Charles and others. Visit roka.com/tts for 20% off your order. RATE AND REVIEW: If you enjoy the show, please help me out by subscribing, rating and reviewing. CONTACT: Want to send feedback, questions or just chat? Email me at mikael@scientifictriathlon.com or connect on Instagram, Facebook, or Twitter.

Mar 29, 2021 • 1h 12min
Training Talk with Helle Frederiksen | EP#279
Helle Frederiksen is a coach and former professional athlete. In her racing days, Helle competed in the London 2012 Olympics, she is the ITU Long Distance World Champion from 2018, and she holds the fastest ever time in women's half distance racing, with a 3:55:50 from Challenge Bahrain. In this interview, we discuss Helle's training and coaching philosophies, as well as the importance of racing to develop, and how to get the best out of yourself on race day. IN THIS EPISODE YOU'LL LEARN ABOUT: -Helle's background as a professional athlete -Her coaching and training philosophy -Training on feel -The importance of racing, and how to execute on race day -Advice on fitting training into a busy lifestyle -Differences and similarities in how to approach training between amateurs and pros -Advice on improving your swim, bike, and run, respectively SHOWNOTES: https://scientifictriathlon.com/tts279/ SCIENTIFIC TRIATHLON AND THAT TRIATHLON SHOW WEBPAGE: www.scientifictriathlon.com/podcast/ SPONSORS: Precision Hydration - One-size doesn't fit all when it comes to hydration. Take Precision Hydration's FREE sweat test and learn how you should hydrate. Use the discount code THATTRIATHLONSHOW15 to get 15% off your order OR use the code THATTRIATHLONSHOW and get your first box for free. ROKA - The finest triathlon wetsuits, apparel, equipment, and eyewear on the planet. Trusted by Javier Gómez, Gwen Jorgensen, Flora Duffy, Mario Mola, Lucy Charles and others. Visit roka.com/tts for 20% off your order. LINKS AND RESOURCES: Helle's website, Twitter, and Instagram World Champions keep things simple: training masterclass with Joel Filliol | EP#172 RATE AND REVIEW: If you enjoy the show, please help me out by subscribing, rating and reviewing: www.scientifictriathlon.com/rate/ CONTACT: Want to send feedback, questions or just chat? Email me at mikael@scientifictriathlon.com or connect on Instagram, Facebook, or Twitter.

Mar 25, 2021 • 52min
Triathlon Run Training | TTS Thursday #4
Triathlon Run Training | TTS Thursday #4 The demands of triathlon running: strength, stamina and fatigue resistance Top tips for improving your triathlon run training Example workouts and weekly structure Common run training mistakes to avoid LINKS AND RESOURCES: Scientific Triathlon website Coaching Training Plans TTS Thursday Episode Archive All previous running-related episodes on That Triathlon Show Injury prevention and rehabilitation with James Debenham, PhD | EP#209 The Triathlete’s Strength Training Formula | EP#81 Running form and training talk with Bobby McGee (USA Triathlon) | EP#225 Running biomechanics, economy, and training load with Izzy Moore, PhD | EP#241 Improve your running speed, endurance, and performance with Pete Magill | EP#203 Training Talk and offroad triathlon with coach Lesley Paterson (multiple World Champion) | EP#277 Mental skills and the psychology of suffering with Carrie Cheadle | EP#97 Practical application of sports psychology for triathletes with Dr. JoAnn Dahlkoetter | EP#108 SPONSORS: ZEN8 - The ZEN8 Indoor Swim Trainer is a tool for time-crunched triathletes looking to improve swim specific strength and technique. Trusted by BMC PRO Triathlon Team, age-group triathletes, coaches and physios around the world. Visit zen8swimtrainer.com/tts for 20% off your order. ROKA - The finest triathlon wetsuits, apparel, equipment, and eyewear on the planet. Trusted by Javier Gómez, Gwen Jorgensen, Flora Duffy, Mario Mola, Lucy Charles and others. Visit roka.com/tts for 20% off your order. RATE AND REVIEW: If you enjoy the show, please help me out by subscribing, rating and reviewing. CONTACT: Want to send feedback, questions or just chat? Email me at mikael@scientifictriathlon.com or connect on Instagram, Facebook, or Twitter.

Mar 22, 2021 • 59min
Polarized versus Moderate intensity training: a controlled trial in triathletes with Dr. Golo Röhrken | EP#278
Golo Röhrken is a medical doctor, sports scientist, and triathlon coach. In this interview we discuss a study he conducted, which was the first ever randomised controlled trial comparing polarised training with other training intensity distributions specifically in the sport of triathlon. IN THIS EPISODE YOU'LL LEARN ABOUT: -The first ever randomised controlled trial of polarised training and moderate intensity training distributions in triathletes -How the two training programs were implemented and executed -Different ways of quantifying training intensity distributions, and problems or misunderstandings that these differences lead to -Golo's coaching advice and practical takehome messages from this study and beyond SHOWNOTES: https://scientifictriathlon.com/tts278/ SCIENTIFIC TRIATHLON AND THAT TRIATHLON SHOW WEBPAGE: www.scientifictriathlon.com/podcast/ SPONSORS: ZEN8 - The ZEN8 Indoor Swim Trainer is a tool for time-crunched triathletes looking to improve swim specific strength and technique. Trusted by BMC PRO Triathlon Team, age-group triathletes, coaches and physios around the world. Visit zen8swimtrainer.com/tts for 20% off your order. ROKA - The finest triathlon wetsuits, apparel, equipment, and eyewear on the planet. Trusted by Javier Gómez, Gwen Jorgensen, Flora Duffy, Mario Mola, Lucy Charles and others. Visit roka.com/tts for 20% off your order. LINKS AND RESOURCES: Golo's website, Twitter, and Instagram Six Weeks of Polarized Versus Moderate Intensity Distribution: A Pilot Intervention Study - Röhrken et al. 2020 An up to date scientific analysis of polarised training vs. threshold training with Michael Rosenblat | EP#244 Polarised training with Stephen Seiler, PhD | EP#177 RATE AND REVIEW: If you enjoy the show, please help me out by subscribing, rating and reviewing: www.scientifictriathlon.com/rate/ CONTACT: Want to send feedback, questions or just chat? Email me at mikael@scientifictriathlon.com or connect on Instagram, Facebook, or Twitter.

Mar 18, 2021 • 55min
Triathlon Bike Training | TTS Thursday #3
Triathlon Bike Training | TTS Thursday #3 The demands of triathlon cycling: sustained power and aerodynamics Example workouts and weekly structure Common bike training mistakes to avoid Top tips for improving your triathlon bike training LINKS AND RESOURCES: Scientific Triathlon website Coaching Training Plans TTS Thursday Episode Archive All previous cycling-related episodes on That Triathlon Show SPONSORS: Precision Hydration - One-size doesn't fit all when it comes to hydration. Take Precision Hydration's FREE sweat test and learn how you should hydrate. Use the discount code THATTRIATHLONSHOW15 to get 15% off your order OR use the code THATTRIATHLONSHOW and get your first box for free. ROKA - The finest triathlon wetsuits, apparel, equipment, and eyewear on the planet. Trusted by Javier Gómez, Gwen Jorgensen, Flora Duffy, Mario Mola, Lucy Charles and others. Visit roka.com/tts for 20% off your order. RATE AND REVIEW: If you enjoy the show, please help me out by subscribing, rating and reviewing. CONTACT: Want to send feedback, questions or just chat? Email me at mikael@scientifictriathlon.com or connect on Instagram, Facebook, or Twitter.

Mar 15, 2021 • 1h 16min
Training Talk and offroad triathlon with coach Lesley Paterson (multiple World Champion) | EP#277
Lesley Paterson is a coach and multiple World Champion across XTERRA and ITU Cross-Triathlon. Lesley joins us to discuss training principles as well as specific advice for racing XTERRA or cross-triathlon. IN THIS EPISODE YOU'LL LEARN ABOUT: -Leslie's training principles and approach to coaching -Top tips for improving your swim, bike, and run -Key workouts in each of the three disciplines, and an example training week -Training advice for XTERRA, including when and how to do specific training -Racing advice for XTERRA, including nutrition, gear, and more -Advice for time-crunched athletes SHOWNOTES: https://scientifictriathlon.com/tts277/ SCIENTIFIC TRIATHLON AND THAT TRIATHLON SHOW WEBPAGE: www.scientifictriathlon.com/podcast/ SPONSORS: Precision Hydration - One-size doesn't fit all when it comes to hydration. Take Precision Hydration's FREE sweat test and learn how you should hydrate. Use the discount code THATTRIATHLONSHOW15 to get 15% off your order OR use the code THATTRIATHLONSHOW and get your first box for free. ROKA - The finest triathlon wetsuits, apparel, equipment, and eyewear on the planet. Trusted by Javier Gómez, Gwen Jorgensen, Flora Duffy, Mario Mola, Lucy Charles and others. Visit roka.com/tts for 20% off your order. LINKS AND RESOURCES: Lesley's website, Twitter, and Instagram Braveheart Coaching website The Brave Athlete: Calm the F*ck Down and Rise to the Occasion - Lesley's book Training for Xterra and off-road triathlon with five-time world champion Melanie McQuaid | EP#196 RATE AND REVIEW: If you enjoy the show, please help me out by subscribing, rating and reviewing: www.scientifictriathlon.com/rate/ CONTACT: Want to send feedback, questions or just chat? Email me at mikael@scientifictriathlon.com or connect on Instagram, Facebook, or Twitter.

Mar 11, 2021 • 51min
Swim Training | TTS Thursday #2
Swim Training | TTS Thursday #2 The demands of triathlon swimming: technique, fitness, and open water readiness Example workouts and weekly structure Common swim training mistakes to avoid Top tips for improving your swim training LINKS AND RESOURCES: Scientific Triathlon website Coaching Training Plans TTS Thursday Episode Archive All previous swimming-related episodes on That Triathlon Show SPONSORS: ZEN8 - The ZEN8 Indoor Swim Trainer is a tool for time-crunched triathletes looking to improve swim specific strength and technique. Trusted by BMC PRO Triathlon Team, age-group triathletes, coaches and physios around the world. Visit zen8swimtrainer.com/tts for 20% off your order. ROKA - The finest triathlon wetsuits, apparel, equipment, and eyewear on the planet. Trusted by Javier Gómez, Gwen Jorgensen, Flora Duffy, Mario Mola, Lucy Charles and others. Visit roka.com/tts for 20% off your order. RATE AND REVIEW: If you enjoy the show, please help me out by subscribing, rating and reviewing. CONTACT: Want to send feedback, questions or just chat? Email me at mikael@scientifictriathlon.com or connect on Instagram, Facebook, or Twitter.

Mar 8, 2021 • 1h 13min
Training Talk with coach Emma Carney (double ITU World Champion) | EP#276
Emma Carney is a double ITU World Champion, World Triathlon Hall of Fame inductee, and dominated women's triathlon in the mid-90s. She retired from racing in 2004, and is now coaching at both high performance and age-group levels. IN THIS EPISODE YOU'LL LEARN ABOUT: -Emma's main coaching philosophy and training principles -Tips for developing your swim, bike, and run -Key workouts in each of the three disciplines -Training periodisation, workout execution, and more... SHOWNOTES: https://scientifictriathlon.com/tts276/ SCIENTIFIC TRIATHLON AND THAT TRIATHLON SHOW WEBPAGE: www.scientifictriathlon.com/podcast/ SPONSORS: ZEN8 - The ZEN8 Indoor Swim Trainer is a tool for time-crunched triathletes looking to improve swim specific strength and technique. Trusted by BMC PRO Triathlon Team, age-group triathletes, coaches and physios around the world. Visit zen8swimtrainer.com/tts for 20% off your order. ROKA - The finest triathlon wetsuits, apparel, equipment, and eyewear on the planet. Trusted by Javier Gómez, Gwen Jorgensen, Flora Duffy, Mario Mola, Lucy Charles and others. Visit roka.com/tts for 20% off your order. LINKS AND RESOURCES: Emma's website, Twitter, and Instagram Hard Wired: Life, Death and Triathlon - Emma's autobiography RATE AND REVIEW: If you enjoy the show, please help me out by subscribing, rating and reviewing: www.scientifictriathlon.com/rate/ CONTACT: Want to send feedback, questions or just chat? Email me at mikael@scientifictriathlon.com or connect on Instagram, Facebook, or Twitter.