Sigma Nutrition Radio

Danny Lennon
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Sep 25, 2018 • 56min

SNR #246: Jamie Pugh, PhD – Gastrointestinal Symptoms in Athletes

Jamie Pugh is a post-doctoral research at Liverpool John Moores University. During his PhD and current work, he has looked at the effect exercise can have on the gastrointestinal system and in more recent work, looked at the effects probiotic supplementation can have on endurance athletes. He has also worked as a consultant nutritionist and physiologist for a number of professional teams and extreme endurance athletes. In This Episode We Discuss The range and severity of symptoms athletes experience Causes of symptoms: physiological, mechanical and nutritional Individual variation in susceptibility to symptoms Lack of association between gut "damage" and symptoms experienced GI distress outside of endurance sport Maximal rates of glucose ingestion: higher than previously thought? Effect of glutamine supplementation Effect of probiotic supplementation Effect of low FODMAP diets Practical steps for practitioners and athletes to mitigate risk JOIN ME IN DUBLIN! Come to Sigma Nutrition Radio LIVE on November 24th. Tickets on sale now: http://sigmanutrition.com/snr-live/
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Sep 18, 2018 • 49min

SNR #245: Artin Entezarjou, MD – Simplifying Science & Interpreting Research

Artin is a medical doctor, currently completing his intern rotations at Helsingborg Hospital, Sweden. He is also currently completing a PhD in Artificial Intelligence in eVisits in Primary Care. Outside of medicine, Artin co-founded EBT (Evidence Based Training), a brand dedicated to making science on health, fitness and nutrition digestible and understandable to the public, mostly through Instagram, but also their blog. In This Episode We Discuss What it means to simplify science How to have a discussion, levels of argument Study types: expert opinions, observational, experimental. Reading studies: what to be looking out for Translating research into practice Understanding statistics in research: p-value, confidence intervals Sigma Nutrition Radio LIVE! Tickets: sigmanutrition.com/snr-live/
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Sep 11, 2018 • 45min

#244: Ian Dunican, PhD – Sleep & Impact of Weight Cutting

Book: 'Making Weight' - The Ultimate Science Based Guide to Cutting Weight for Combat Sports Ian is currently the Director and Principal Consultant of Melius Consulting and has a PhD from the University of Western Australia (UWA), where he worked with elite sporting organisations/athletes to optimise sleep, recovery and performance. He is also the Director of Sleep4Performance and an Adjunct Researcher at Monash University, Australia. Ian has worked with elite and highly trained athletes at the Australian Institute of Sport (AIS), West Australian Institute of Sport (WAIS), professional teams in Super Rugby, Australian Rules Football, Basketball, Swimming, Ultrarunners and Martial Arts such as Boxing, & MMA. He is an ultrarunner, completing over 20 ultramarathons to date including the Ultra Trail Australia ~100km (7 times), Leadville~100 miler, numerous other marathons and trail running events. He is a Brazilian Jiu Jitsu Purple belt and enjoys cross training in wrestling, Mixed Martial Arts (MMA) and kettlebells. He is now focusing on improving his swimming to undertake open water swimming events in 2018/19. He was a TEDx Perth speaker in 2017. He has co-authored technical reports, guidelines for industry organisations and authored a number of scientific articles and is a regular reviewer for scientific peer reviewed journals. Ian is the host of Sleep4Performance radio a podcast dedicated to education, knowledge sharing and promotion of the value of managing sleep. In This Episode We Discuss Weight cutting study: impact on sleep Does low fibre dieting lead to worse sleep? Effects of caloric restriction on sleep Impact of anxiety and nervousness on week of competition Brain trauma and sleep Demands for sleep with increased training workload Impact of late night training
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Sep 6, 2018 • 54min

SNR #243: Valentin Tambosi - Time Frames for Natural Bodybuilders

Valentin is a pro natural bodybuilder and coach based in Vienna, Austria. He has been working as a personal trainer and physique coach for several years. As an athlete he is a professional natural bodybuilder with the IPE. Valentin is also a speaker at Intelligent Strength for their Strength Coach program. In This Episode We Discuss Ideal body composition at the start of a contest prep Recommended length of contest prep for natural athletes How competition frequency should change with experience level Off-season length and building in mini-cuts Strategic use of diet breaks during prep Understanding conditioning: how lean is "lean enough"? Weekly refeeds: setting the correct duration Peak week carbohydrate intake: front-loading vs. back-loading, and other considerations Come to Sigma Nutrition Radio LIVE! in Dublin this November: sigmanutrition.com/snr-live
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Sep 4, 2018 • 5min

Special Announcement: Sigma Nutrition Radio LIVE!

Tickets: http://sigmanutrition.com/snr-live/ Four true world-class experts in the world of nutritional sciences will join SNR host Danny Lennon for a day of deep-diving conversations on the most cutting-edge and important topics in nutrition. Joining Danny on stage will be: --> Martin MacDonald - Mac-Nutrition --> Kirsty Elliot-Sale, PhD - NTU --> James Morton, PhD - Team Sky & LJMU --> Nicola Guess, PhD, RD - King's College, London TICKET INFO: http://sigmanutrition.com/snr-live/
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Aug 28, 2018 • 1h 10min

#242: Jake Mey, PhD, RD – How Much Sugar is Too Much?

Jake is a registered dietitan and a human nutrition researcher. His work focuses on diet, muscle & metabolism. He is a Postdoctoral Research Fellow in Integrated Physiology and Molecular Medicine at the Pennington Biomedical Research Center. He is also a contractor in Inflammation and Immunity research at the renowned Cleveland Clinic. In This Episode We Discuss Understanding evidence-based research Can sugar, without caloric excess, still have detrimental health effects? Cleveland Clinic study: effect of wholegrains vs. refined grains on glucose metabolism How much sugar counts as a 'high intake'? At what intakes we see issues Insulin resistance, AGEs and other issues Sigma Nutrition Radio LIVE! - Event in Dublin: sigmanutrition.com/snr-live/
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Aug 21, 2018 • 1h 4min

SNR #241: Elise Facer-Childs – Circadian Phenotypes, Brain Function & Athletic Performance

Elise Facer-Childs is currently a Doctoral Researcher working at the University of Birmingham on sleep, circadian rhythms and neuroimaging. She works with human participants to uncover the impact that our body clocks can have on brain structure and function, genetics, physiology and performance. Elise has presented her research at an International Conference for the European Biological Rhythms Society (EBRS)/World Chronobiology Congress (WCC) and has given presentations at the UK's largest circadian conferences (UK Clock Club). In This Episode We Discuss Understanding circadian phenotypes Neuroimaging (fMRI) to understand how the brain is affected by time of day Time of day vs. time relative to internal circadian clock Practical implications for "night owls" and "morning larks" Personal best performance times differ significantly between circadian phenotypes Circadian phase shifting http://sigmanutrition.com/sigma-synopsis/
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Aug 13, 2018 • 53min

SNR #240: Erica Goldstein, RD – Exercise-Associated Anemia, Hepcidin Activity & Implications for Athletes

Erica is a registered dietitian, currently completing a PhD at the University of Central Florida in Orlando. Previously she was employed as a Clinical and Sports Dietitian at the Mayo Clinic in Jacksonville, Florida, where Erica provided individual sports nutrition consultation to endurance and team sport athletes, in addition to providing care and educating oncology patients in the hospital. She has a M.A. in Exercise Science and Health Promotion from FAU, in addition to a B.S. in Nutrition and Dietetics from UNF. She is also a Certified Strength and Conditioning Specialist with the NSCA, and a Certified Sports Nutritionist with the ISSN. In This Episode We Discuss Defining iron deficiency and iron deficiency anaemia Iron-deficiency anaemia: diagnosis and symptoms Why is iron so crucial for athlete performance? The role of hepcidin Dilutional pseudoanaemia Heel strike hemolysis How sources of iron differ in quality or bio-availability Supplementation: dosage, forms, etc.
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Aug 6, 2018 • 1h 2min

SNR #239: Carl Juneau, PhD – Does Muscle Damage Actually Cause Hypertrophy?

Carl is an exercise scientist with a PhD in physical activity epidemiology. He is also the founder of the Dr. Muscle app. In This Episode We Discuss Influence of mechanical tension, muscle damage and metabolic stress on hypertrophy Does muscle damage really cause hypertrophy? Research for and against muscle damage being important. Practical implications Volume vs. mechanical tension
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Jul 17, 2018 • 46min

SNR #238: Andi & Alex Pürzel – Behind Intelligent Strength

Andi Pürzel, co-founder of Intelligent Strength and owner of Das Gym in Vienna, and his brother Alex, a physical education teacher and gold medalist in powerlifting, share their unique insights into strength training. They discuss their journey from early challenges to building a supportive gym community, stressing the importance of mindset and authenticity. The brothers also reflect on the life lessons learned through competitive sports, emphasizing personal growth and joy in training. Their passion for fostering connections in fitness shines throughout the conversation.

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