Human Performance Outliers Podcast with Zach Bitter

This is part one of a series this year where I reflect on my training blocks for 2025. This episode covers the first three weeks after switching from an offseason/strength focus towards running taking the primary position. Endurance Training Simplified Series Zach's Low Carb Endurance Approach Series LMNT: drinkLMNT.com/HPO (free sample pack with purchase) deltaG: deltagketones.com - IG: @deltag.k...

A study on Low Carb Keto diets was recently published by Prins, Noakes, Koutnik, et al. that examined the role of stable blood sugar through very small carbohydrate intake as the main determiner of performance for endurance athletes, as well as some insights into low carbohydrate performance compared to high carbohydrate. I take a look, and share some thoughts. Study Brady's Substack Brady's IG: @...

This episode continues a series covering some of the most prolific ancient endurance groups and tribes the world has ever seen. Joining me as co-host for this series is James Pieratt. We unpack what made the Apache some of the most impressive endurance athletes of all time. For more on James, check out episode 395 where we discuss his lifestyle. James: wildhuntconditioning.com  - IG: @wildhuntcond...

Dr. Samuel Spinelli is a Doctor of Physical Therapy and Certified Strength and Conditioning Specialist (CSCS). He is the cofounder of Rehab Explained and Citizen Athletics. He has helped many professional athletes rehab and prepare for peak performance. He joined the show to share his insights on hamstring performance and health. Endurance Training Simplified Series Zach's Low Carb Endurance Appro...

Davy Crockett is an ultramarathon runner, and hosts Ultrarunning History . His podcast and books dive deeper than any other ultramarathon history resource. Davy also is the director of the American Ultrarunning Hall of Fame. Endurance Training Simplified Series Zach's Low Carb Endurance Approach Series LMNT: drinkLMNT.com/HPO deltaG: deltagketones.com - IG: @deltag.ketones Code: BITTER20 Support H...

J Scott Chapman is a certified ultrarunning coach who really enjoys big mountain races. Given that two of his core values are curiosity and exploration, he loves to read the latest studies, but he knows that ultras are not run in a lab. His coaching philosophy embraces the idea that while there are established training principles, no single approach fits everyone. He considers each individual's un...

Dr. Jess Tranchina is a PT, DPT, NASM-CPT, A.R.T Certified Provider, CKTP. She has been an athlete most of her life. Training and competing in runs from the 5K to 50ks, triathlons from the sprint distance to Ironman distance, strength competitions, and figure competitions has provided her with opportunities to train from the best, learn from the best, be treated by the best, and compete with the b...

Brady Holmer is a MSc in Human Performance, endurance athlete, and science writer. He hosts Physiologically Speaking , a great resources for both health and endurance performance. Brady recently dropped 10 minutes off his marathon PR on a four day per week running program, clocking a speedy time of 2:26:28. We unpack how he structured his training and nutrition. We also touch on some new research...

Dr. Courtney Conley is the creator of Gait Happens , an online education company helping people from around the globe improve their foot function. She has taken the past several years to develop online courses to educate clinicians on foot anatomy, the importance of foot health and the truths behind modern footwear. Courtney: gaithappens.com  - IG: @gaithappens Endurance Training Simplified Series...

Tara Dower recently broke the record for fastest traverse of the full Appalachian Trail (AT) outright. No man or women has covered the distance faster. The AT is 2,197.4 miles over unforgiving terrain. Tara covered it in 40 days 18 hours 05 minutes, which is the equivalent of approximately two marathons per day. Tara also holds the Women's supported FKT on the Colorado Trail (489 miles). Tara is a...

This episode kicks off a series of episodes covering some of the most prolific ancient endurance groups and tribes the world has ever seen. Joining me as co-host for this series is James Pieratt. For more on James, check out episode 395 where we discuss his incredible lifestyle. Endurance Training Simplified Series Zach's Low Carb Endurance Approach Series SFuels: sfuelsgolonger.com code: BITTER5...

For this episode, I dive into some things that I find important when considering doing an ultramarathon. These planning processes will help you better prepare and execute in your training and the event. Topics include: timeline, available resources, gear list, nutrition list, hydration list, measurement tools, and mental preparation. Endurance Training Simplified Series Zach's Low Carb Endurance A...

Joe and I dive into topics including: Tightening of women's competition Tara Dower beats everyone on the AT Have we learned anything about pacing Is Katie Schide the final WSER/UTMB same year Champ Multiday and time event growth Camille/Wiki thoughts Endurance Training Simplified Series Zach's Low Carb Endurance Approach Series SFuels: sfuelsgolonger.com code: BITTER5 ( FREE SAMPLE PACK LIMITED OF...

Adam is a 12-year combat veteran of the Air Force with deployments to Iraq and Afghanistan as an Explosive Ordnance Disposal (EOD) team leader. In 2007, while working to disarm a roadside bomb (IED) in Afghanistan, Adam was injured by a secondary IED resulting in the amputation of his right leg above the knee. Adam is now a seven-time Guinness World Record holder, became the first above-knee amput...

Mikki Williden is a nutrition PhD who dives into topics of low carb nutrition, longevity, fitness, and health. Some topics we covered include: Keto v. low carb Athletes using low carb Is keto safe for women Fasting: timing, men v. women, heavy exercise Periodized nutrition Endurance Training Simplified Series Zach's Low Carb Endurance Approach Series SFuels: sfuelsgolonger.com code: BITTER5 Janji:...

David Hellard is an ultra marathon runner, running journalist, and host of The Bad Boy Running Podcast . In this episode we discussed the excitement around short fast trail races, media and opportunities in the sport of trail running, and caffeine protocols for athletes. Endurance Training Simplified Series Zach's Low Carb Endurance Approach Series SFuels: sfuelsgolonger.com code: BITTER5 ( FREE S...

David Spiegel is an American psychiatrist and the Wilson Professor and Associate Chair of Psychiatry at Stanford University School of Medicine, where he is known for his research into psycho-oncology; the neurobiology of therapeutic hypnosis, and the role of the mind-brain-body connection in cancer outcomes and management among other topics. He directs the Stanford Center on Stress and Health and...

David is the 2014 USATF Trail Runner of the Year at the sub-ultra distance. He is a two-time national champion and three-time member of Team USA. He graduated with honors from Columbia University with a degree in Environmental Science and received a master's degree and law degree with honors from Duke University. He is the co-owner of SWAP Running with Megan Roche, and also co-host with Megan for...

Dr. Dave will be challenging himself to complete the Javelina 100 mile in 2024, going from the couch to the 100 mile distance in a years time. Dave has an extensive background as a medical director, treating thousands of patients, including: Olympians, National Champions, sports teams, and professionals. After losing his own health in the pursuit of helping others find theirs, Dave and his family...

Dr. Andreas Eenfeldt is the founder/CEO of both Diet Doctor and HAVA. Diet Doctor focuses on providing information related to low carbohydrate ketogenic diets, and HAVA leverages an approach that focuses on key components of satiety to help users decide what food choices may best serve them. Endurance Training Simplified Series Zach's Low Carb Endurance Approach Series SFuels: sfuelsgolonger.com c...

Mike is a 2002 graduate of The U.S. Military Academy at West Point where he was commissioned as an officer and went on to serve three combat tours with the First Cavalry Division and 3rd Special Forces Group.  Mike continues to serve the nation as a Lt. Colonel in the U.S. Army Reserves, assigned to the United States Military Academy at West Point, where he is an Assistant Professor. He is the co-...

Thirteen years ago, Justin went to the Congo in hopes of providing clean water for the Pygmy Tribe. The journey began with six failed wells, led to multiple bouts with malaria, and life threatening hikes in search of water. Justin's life story is full of examples of overcoming what many would consider insurmountable hurdles, which is why he has gotten to where he is today. Justin and his team at F...

Joe and I unpack what we thought about this year's Western States Endurance Run, including reported fueling strategies, heat mitigation, competitive pressure, and shoe tech. We also touched on some other performances, including Jenny Hoffman's 24 Hour at Six Days in the Dome, and Megan Eckert hitting 526.301 miles in six days, new ultra gender gap study. SFuels:  sfuelsgolonger.com  code: BITTER5...

Philip Calder is Head of the School of Human Development and Health and Professor of Nutritional Immunology in the Faculty of Medicine, University of Southampton. He is an internationally recognized researcher on the metabolism and functionality of fatty acids, with an emphasis on the roles of omega-3 fatty acids, and on the influence of diet and nutrients on the immune and inflammatory responses....

Jae Gruenke from The Balanced Runner believes good running form means using your body the way it really works rather than fighting to move it some other way. For this episode we unpack a few topics related to pain free running. They include: Pros/Cons of Feldenkrais Method, how shoe type can impact running form, the role of forward lean, arm "swing", foot strike, and cadence for proper running. En...