Episode 28 explores how ultra training should evolve with age without lowering ambition. The central idea is the recovery budget: every long run, hard session, strength workout and race creates stress, while sleep, work, nutrition and life commitments affect how quickly that budget is restored.

As runners get older, training does not necessarily need to become easier, but it should become less crowded and more purposeful. This means allowing more recovery between demanding sessions, maintaining strength training, using intensity selectively and treating races as major training loads rather than casual additions to the calendar.

The episode also stresses that sustainable training matters at every age. Younger runners may tolerate poor decisions for longer, but repeated overload can still lead to injury, fatigue and burnout. The key message is:

Do not ask how much training you can survive. Ask how much training you can absorb and repeat for years.

Key references:

1. Tanaka H, Seals DR. Endurance exercise performance in Masters athletes: age-associated changes and underlying physiological mechanisms. The Journal of Physiology. 2008;586(1):55–63. doi: 10.1113/jphysiol.2007.141879

2. Borges N, Reaburn P, Driller M, Argus C. Age-related changes in performance and recovery kinetics in Masters athletes: a narrative review. Journal of Aging and Physical Activity. 2016;24(1):149–157. doi: 10.1123/japa.2015-0021

3. Valenzuela PL, Maffiuletti NA, Joyner MJ, Lucia A, Lepers R. Lifelong endurance exercise as a countermeasure against age-related VO₂max decline: physiological overview and insights from Masters athletes. Sports Medicine. 2020;50(4):703–716. doi: 10.1007/s40279-019-01252-0

4. Fragala MS, Cadore EL, Dorgo S, et al. Resistance training for older adults: position statement from the National Strength and Conditioning Association. Journal of Strength and Conditioning Research. 2019;33(8):2019–2052. doi: 10.1519/JSC.0000000000003230

5. Llanos-Lagos C, Ramirez-Campillo R, Moran J, Sáez de Villarreal E. Effect of strength-training programs on middle- and long-distance runners’ economy at different running speeds: a systematic review with meta-analysis. Sports Medicine. 2024;54(4):895–932. doi: 10.1007/s40279-023-01978-y

6. Herbert P, Hayes LD, Sculthorpe NF, Grace FM. HIIT produces increases in muscle power and free testosterone in male Masters athletes. Endocrine Connections. 2017;6(7):430–436. doi: 10.1530/EC-17-0159

7. Soligard T, Schwellnus M, Alonso JM, et al. How much is too much? Part 1: International Olympic Committee consensus statement on load in sport and risk of injury. British Journal of Sports Medicine. 2016;50(17):1030–1041. doi: 10.1136/bjsports-2016-096581

8. Doering TM, Reaburn PR, Phillips SM, Jenkins DG. Postexercise dietary protein strategies to maximize skeletal-muscle repair and remodeling in Masters endurance athletes: a review. International Journal of Sport Nutrition and Exercise Metabolism. 2016;26(2):168–178. doi: 10.1123/ijsnem.2015-0102

9. Tiller NB, Millet GY. Decoding ultramarathon: muscle damage as the main impediment to performance. Sports Medicine. 2025;55(3):535–543. doi: 10.1007/s40279-024-02127-9

After a DNF, remember this sequence:

Feel it. Separate it. Learn from it. Then move forward.

Feel the disappointment without shame. Separate the facts from the story you are telling about yourself. Extract a small number of useful lessons. Then rebuild through ordinary, consistent action.

A DNF is painful because the goal mattered. But it is a result, not an identity. It records where one race ended; it does not decide where your running ends.

So keep this sentence for the difficult days after an unfinished race:

“I did not finish this race—but this race has not finished me.”

Key references:

1. Mosewich, A. D., Crocker, P. R. E., Kowalski, K. C., & DeLongis, A. (2013). Applying self-compassion in sport: An intervention with women athletes. Journal of Sport & Exercise Psychology, 35(5), 514–524. DOI: 10.1123/jsep.35.5.514
2. Ceccarelli, L. A., Giuliano, R. J., Glazebrook, C. M., & Strachan, S. M. (2019). Self-compassion and psycho-physiological recovery from recalled sport failure. Frontiers in Psychology, 10, 1564. DOI: 10.3389/fpsyg.2019.01564
3. Zhang, N., Huang, J., & Yao, J. (2023). Athletes’ self-compassion and emotional resilience to failure: The mediating role of vagal reactivity. Frontiers in Psychology, 14, 1192265. DOI: 10.3389/fpsyg.2023.1192265
4. Kuchar, A. L., Neff, K. D., & Mosewich, A. D. (2023). Resilience and Enhancement in Sport, Exercise, & Training—RESET: A brief self-compassion intervention with NCAA student-athletes. Psychology of Sport and Exercise, 67, 102426. DOI: 10.1016/j.psychsport.2023.102426
5. Neumann, D. L., & McInnes, M. (2025). A brief writing intervention assists athletes to cope with performance failures. PsyCh Journal, 14(5), 787–798. DOI: 10.1002/pchj.70026
6. Alipour Ataabadi, Y., Cormier, D. L., Kowalski, K. C., Oates, A. R., Ferguson, L. J., & Lanovaz, J. L. (2022). The associations among self-compassion, self-esteem, self-criticism, and concern over mistakes in response to biomechanical feedback in athletes. Frontiers in Sports and Active Living, 4, 868576. DOI: 10.3389/fspor.2022.868576

Durability is the ability to preserve your performance as fatigue accumulates during prolonged exercise. While fitness describes what you can do when fresh, durability determines how much of that fitness remains after many hours of running.

In a 100K or 100-mile race, pace can decline because of muscular damage, worsening running economy, reduced force production, poor fuelling and mental fatigue. A durable runner still becomes tired, but their deterioration is slower and more manageable.

Durability is developed through consistent training volume, progressive long runs, selective back-to-back sessions, race-specific terrain, downhill conditioning and strength training. Long runs should also be used to practise realistic pacing, hiking, nutrition and equipment.

The common mistake is trying to prove durability through excessively long or exhausting sessions. Durability is not built by destroying the body in one weekend. It comes from months of sustainable training that can be repeated consistently.

Fitness may carry you through the first half of an ultra. Durability determines what remains for the second.
Key References:

1. Maunder, E., Seiler, S., Mildenhall, M. J., Kilding, A. E., & Plews, D. J. (2021). The Importance of “Durability” in the Physiological Profiling of Endurance Athletes. Sports Medicine, 51, 1619–1628. DOI: 10.1007/s40279-021-01459-0.

2. Jones, A. M. (2024). The Fourth Dimension: Physiological Resilience as an Independent Determinant of Endurance Exercise Performance. The Journal of Physiology, 602, 4113–4128. DOI: 10.1113/JP284205.

3. Millet, G. Y. (2011). Can Neuromuscular Fatigue Explain Running Strategies and Performance in Ultra-Marathons? The Flush Model. Sports Medicine, 41, 489–506. DOI: 10.2165/11588760-000000000-00000.

4. Millet, G. Y., Tomazin, K., Verges, S., et al. (2011). Neuromuscular Consequences of an Extreme Mountain Ultra-Marathon. PLOS ONE, 6, e17059. DOI: 10.1371/journal.pone.0017059.

5. Tanda, G., & Knechtle, B. (2015). Effects of Training and Anthropometric Factors on Marathon and 100 km Ultramarathon Race Performance. Open Access Journal of Sports Medicine, 6, 129–136. DOI: 10.2147/OAJSM.S80637.

6. Bontemps, B., Vercruyssen, F., Gruet, M., & Louis, J. (2020). Downhill Running: What Are the Effects and How Can We Adapt? A Narrative Review. Sports Medicine, 50, 2083–2110. DOI: 10.1007/s40279-020-01355-z.

7. Llanos-Lagos, C., Ramírez-Campillo, R., Moran, J., & Sáez de Villarreal, E. (2024). Effect of Strength Training Programs in Middle- and Long-Distance Runners’ Economy at Different Running Speeds: A Systematic Review with Meta-analysis. Sports Medicine, 54, 895–932. DOI: 10.1007/s40279-023-01978-y.

8. Knechtle, B., & Nikolaidis, P. T. (2018). Physiology and Pathophysiology in Ultra-Marathon Running. Frontiers in Physiology, 9, 634. DOI: 10.3389/fphys.2018.00634.

9. Clark, I. E., Vanhatalo, A., Thompson, C., et al. (2019). Dynamics of the Power-Duration Relationship During Prolonged Endurance Exercise and Influence of Carbohydrate Ingestion. Journal of Applied Physiology, 127, 726–736. DOI: 10.1152/japplphysiol.00207.2019.