Episode 116: Reflecting on 2025, ReFUEL study updates, and Looking Ahead
Release Date: 12/30/2025
Trail Society
Episode 116 is a year end reflection with Corrine Malcolm, Keely Henninger, and Hillary Allen, released just ahead of the New Year. The conversation opens with lighthearted check ins on holiday routines, winter training, and how each host plans to ring in 2026. From there, the episode moves into results, news, and science, including a detailed discussion of new findings from the ReFUEL study examining menstrual recovery, estrogen exposure, and ovulation in endurance athletes with functional hypothalamic amenorrhea and oligomenorrhea. The hosts unpack what it actually means for cycles to...
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Episode 115 is a winter roundtable with Corrine Malcolm, Keely Henninger, and Hillary Allen that explores how resilience in endurance sport is built not in isolation, but through people, culture, and environment. We open by checking in on winter training realities across snow, mud, rain, and darkness, and how community helps athletes keep showing up during the hardest part of the year. The episode also covers standout performances from CIM, including a historic day for women chasing the Olympic Trials standard, updates in women’s sport science and leadership, and notable moments across...
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Episode 114 takes us to Cape Town as Corrine gives a full UTCT race recap, reflecting on why she returned to the Deep South, the big-volume training block leading in, and the challenges of racing after travel sickness and time zone chaos. We talk pacing through the first 50 kilometers, fueling decisions, and what makes a night start feel uniquely disorienting. The conversation touches on heat training, mental reframing, and the honest emotional landscape of managing expectations when things out of your control land in your lap during race week. We also round up an exceptionally fast weekend of...
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In Episode 113 we sit down with Dr. Margie Davenport, Professor of Kinesiology and Director of the Program for Pregnancy and Postpartum Health at the University of Alberta. Margie has spent more than two decades advancing the science of exercise during pregnancy and postpartum, collaborating with organizations including FIFA, Sport Canada, ACSM, and the Society of Obstetricians and Gynaecologists of Canada. She walks us through the transformative cardiovascular, metabolic, and biomechanical adaptations that make pregnancy “the ultimate stress test,” while explaining how exercise supports...
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In Episode 112 of Trail Society, Corrine, Keely, and Hillary head to the desert for the Javelina Jundred. Keely was on the ground with the rabbit x Trail Society scholarship athletes, Clarivel Vega and Daisy, crewing, pacing, and celebrating their powerful performances. From first trail race jitters and high and low moments, to late-night grit, the weekend was a reminder that showing up for one another can make all the difference. The crew dives into what it means to create access, not just by giving out scholarships, but by building community and support systems that help women get to the...
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In this episode of Trail Society, Corrine, Keely, and Hillary sit down with researcher Jill Colangelo to unpack their newly published review, “Exploring the Presentation of REDs in Ultra Endurance Sport.” This conversation dives deep into the intersection of low energy availability (LEA), disordered eating (DE), and exercise dependence (EXD), issues that are all too common yet rarely discussed openly in the ultra-endurance community. Many athletes are unknowingly underfueling, especially for efforts lasting over two and a half hours, and whether this is intentional or unintentional, the...
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In this episode of Trail Society, Corrine, Keely, and Hillary break down an action-packed World Mountain and Trail Running Championships, where Team USA came away with hardware and Hillary surprised us all with a double, competing in both the vertical and the long trail events. Hilly shares what it was like to rock the Team USA kit, how she pivoted from preparing for a one-hour climb to suddenly taking on an 80km ultra, and what she learned from the experience. The crew also highlights the story of Clarivel Vega, this year’s 30km Javelina Trail Society Scholarship recipient. A...
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Episode 109 of Trail Society features an inspiring conversation with Daisy Martinez, the rabbit x Trail Society 100K scholarship winner whose story embodies resilience and representation. A Mexican American ultrarunner from Los Angeles, Daisy started trail running in 2016 and has since transformed personal challenges into fuel for her running journey. As a teen parent and now single mother, she credits the endurance and grit she built while raising her son with helping her push through the mental and physical demands of ultrarunning. Diagnosed with Multiple Sclerosis in 2023, Daisy has been...
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In this episode of Trail Society, Corrine Malcolm, Keely Henninger, and Hillary Allen dive into one of the biggest weeks in trail running, the 2025 UTMB Finals. From brutal weather and historically high dropout rates to some of the closest top-10 finishes ever, the crew breaks down all the drama across OCC, CCC, and UTMB. They highlight standout wins from Jim Walmsley, Ruth Croft, and Francesco Puppi, celebrate trailblazing performances from athletes representing countries new to the UTMB stage, and reflect on the growing but still uneven women’s participation numbers. Beyond the race...
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Episode 107 of Trail Society kicks off with life updates from Keely and Hillary, before diving into listener-submitted news and research. They discuss a BBC story where undercover officers highlighted the prevalence of street harassment, with 94% of local women reporting experiences of catcalling. This transitions into a conversation around exercise during pregnancy, sparked by a listener question about heart rate guidelines. The hosts review current research showing that, for athletes already active, higher intensity exercise can be safe and even beneficial during pregnancy, lowering risks...
info_outlineEpisode 116 is a year end reflection with Corrine Malcolm, Keely Henninger, and Hillary Allen, released just ahead of the New Year. The conversation opens with lighthearted check ins on holiday routines, winter training, and how each host plans to ring in 2026. From there, the episode moves into results, news, and science, including a detailed discussion of new findings from the ReFUEL study examining menstrual recovery, estrogen exposure, and ovulation in endurance athletes with functional hypothalamic amenorrhea and oligomenorrhea. The hosts unpack what it actually means for cycles to return, why multiple consecutive cycles matter, and how this research informs coaching, athlete health, and family planning conversations.
The second half of the episode is a wide ranging reflection on the year that was. Corrine, Keely, and Hillary look back on major themes from Trail Society in 2025, including athlete contracts, travel and racing highlights, fertility, resilience, fatigue, recovery, and women’s sports milestones. They reflect on favorite conversations and guests, moments that surprised them, trends they are ready to leave behind, and ideas they hope shape the future of the sport. The episode closes with personal roses and thorns from the year, Society Slam listener questions, and an exciting announcement about what’s coming next: a short break, a new weekly format in 2026, and even more long run listening ahead.
Sponsors
This episode is brought to you by rabbit.
If you’re looking to treat yourself after the holidays or upgrade your winter running kit, head to www.runinrabbit.com and use code HOPPYHOLIDAYS in December for 10% off.
Citations
Mallinson, R. J., et al. (2025). Multiple eumenorrheic cycles are necessary to observe a significant increase in estrogen exposure and ovulation in exercising women with functional hypothalamic oligo/amenorrhea undergoing a nutritional intervention: Insights from the REFUEL study. PM & R: The Journal of Injury, Function, and Rehabilitation. https://doi.org/10.1002/pmrj.70024