Episode 24 [CODE #1] The 80/20 Secret Train SLOWER to Race FASTER Than Ever 📉

💬 Got a question or feedback? Write us at: [email protected]

☕ Buy a Gel Caf for Lactate to support the work: ko-fi.com/lactate

Summary: Stop believing that exhaustion is the only metric of success; elite athletes like Eliud Kipchoge spend 80% of their training volume shuffling at paces significantly slower than race speed to build a metabolic engine that recreational runners destroy in the "Grey Zone." This episode dismantles the "No Pain, No Gain" myth by exploring the opposing cellular signaling pathways: the volume-dependent calcium-calmodulin trigger for mitochondrial biogenesis and the high-stress AMPK pathway. You will learn why staying below the first lactate threshold (LT1 < 2.0 mmol/L) maximizes MCT-1 transporters to clear fatigue, while the "Black Hole" of moderate intensity leads to autonomic stagnation. We translate the landmark work of Dr. Stephen Seiler into a practical blueprint, polarizing your week into strict Zone 1 volume and Zone 3 intensity to replicate the +11.7% VO₂peak gains seen in controlled trials; look at Mark Allen, who capped his heart rate at 155 bpm to transform from an anaerobic choker into a six-time Ironman champion.

Keywords: polarized training, zone 2, stephen seiler, lactate threshold, vo₂max, mitochondrial biogenesis, 80/20 rule, mark allen

🎙️ Lactate, the podcast that deciphers science to improve your performance.

Key references :

Seiler, S., & Kjerland, G. Ø. (2006). Quantifying training intensity distribution in elite endurance athletes: is there evidence for an "optimal" distribution? Scandinavian Journal of Medicine & Science in Sports.

Stöggl, T., & Sperlich, B. (2014). Polarized training has greater impact on key endurance variables than threshold, high intensity, or high volume training. Frontiers in Physiology.

Rosenblat, M. A., Perrotta, A. S., & Vicenzino, B. (2019). Polarized vs. Threshold Training Intensity Distribution on Endurance Sport Performance: A Systematic Review and Meta-Analysis. Journal of Strength and Conditioning Research.

Burnley, M., et al. (2022). Polarized Training is Not Optimal for Endurance Athletes.

Bakken, M. (2022). The Norwegian model of lactate threshold training.

Voices generated by artificial intelligence from the scientific report produced by the Lactate team.

Episode 23 : Are Your Vitamins KILLING Your Gains? The Antioxidant Trap Explained 💊

💬 Got a question or feedback? Write us at: [email protected]

☕ Buy a Gel Caf for Lactate to support the work: ko-fi.com/lactate

Summary: For decades, the fitness industry sold the myth that "more is better," but the Antioxidant Paradox reveals that your post-workout multivitamin might be chemically castrating your hard-earned adaptations. Emerging research establishes that Reactive Oxygen Species (ROS) are not merely toxins but essential "mitohormetic" signals that trigger mitochondrial biogenesis (via PGC-1$\alpha$) and strength gains (via p70S6K); high-dose antioxidants like Vitamin C (1000 mg) and E indiscriminately mute these signals, effectively blocking insulin sensitivity improvements and slashing endurance gains by up to 160% in animal models. The rigorous physiological data from Ristow and Gomez-Cabrera dictates a "Food First" protocol to modulate rather than silence stress, requiring athletes to strictly avoid antioxidant supplementation in the 2–4 hour window pre- and post-training. While structural hypertrophy may persist despite blunted signaling, functional strength and aerobic efficiency are compromised, meaning elite performance requires periodization—"Train Low" to maximize adaptation during base phases and "Compete High" only during multi-day stage races or altitude camps where survival outweighs growth.

Keywords: antioxidant trap, mitohormesis, reactive oxygen species, pgc-1α, vitamin c, hypertrophy, insulin sensitivity, periodization, food first, nrf2

🎙️ Lactate, the podcast that deciphers science to improve your performance.

Key references :

Ristow, M., et al. (2009). Antioxidants prevent health-promoting effects of physical exercise in humans. Proceedings of the National Academy of Sciences, 106(21), 8665-8670. https://doi.org/10.1073/pnas.0903485106

Gomez-Cabrera, M. C., et al. (2008). Oral administration of vitamin C decreases muscle mitochondrial biogenesis and hampers training-induced adaptations in endurance performance. American Journal of Clinical Nutrition, 87(1), 142-149. https://pubmed.ncbi.nlm.nih.gov/18175748/

Paulsen, G., et al. (2014). Vitamin C and E supplementation alters protein signalling after a strength training session, but not muscle growth during 10 weeks of training. The Journal of Physiology, 592(24), 5391-5408. https://pubmed.ncbi.nlm.nih.gov/25384788/

Klein, E. A., et al. (2011). Vitamin E and the risk of prostate cancer: the Selenium and Vitamin E Cancer Prevention Trial (SELECT). JAMA. https://ascopost.com/issues/april-15-2012/select-trial-update-vitamin-e-fails-to-prevent-prostate-cancer-in-healthy-men/

Jeukendrup, A. E. (2017). Periodized Nutrition for Athletes. Sports Medicine, 47(Suppl 1), 51–63. https://pmc.ncbi.nlm.nih.gov/articles/PMC5371625/

Voices generated by artificial intelligence from the scientific report produced by the Lactate team.

Episode 22 : Blueprint for 2026 ✨ : How to Analyze Your Past Season to Build Your Best Year Yet ✨

💬 Got a question or feedback? Write us at: [email protected]

☕ Buy a Gel Caf for Lactate to support the work:⁠ https://ko-fi.com/lactate⁠⁠⁠⁠

Summary: The demarcation between stagnation and breakthrough in 2026 is not determined by your first interval of January, but by the depth of your forensic audit now, as memory is an unreliable narrator that masks physiological reality behind the "soldier mindset" and euphoria of the finish line; you must rigorously analyze aerobic decoupling (Pw:HR) on long rides, where a drift >5% signals thermoregulatory stress and inefficient Type II fiber recruitment rather than true durability, and scrutinize your Power Duration Curve for discrepancies between sFTP and mFTP that indicate "zone confusion" where threshold work became glycolytic suprathreshold strain. Prioritize "resensitization" over continuous load, as a 2-4 week break resets hormonal sensitivity with only minor plasma volume loss, and implement heavy strength training (3-5 reps at >85% 1RM) to improve fractional utilization and economy as successfully demonstrated by Tadej Pogačar following his 2023 defeat; finally, overlay your injury timeline with the Acute:Chronic Workload Ratio (aim for 0.8–1.3) to identify systemic loading errors rather than bad luck.

Keywords: physiological audit, aerobic decoupling, power duration curve, resensitization, strength training, acute chronic workload ratio, tadej pogačar, mftp vs sftp, durability.

🎙️ Lactate, the podcast that deciphers science to improve your performance.

Key references :

Casado, A., et al. (2022). Training Periodization, Methods, Intensity Distribution, and Volume in Highly Trained and Elite Distance Runners: A Systematic Review. International Journal of Sports Physiology and Performance.

Maupin, D., et al. (2025). Acute to chronic workload ratio (ACWR) for predicting sports injury risk: a systematic review and meta-analysis. PMC.

Balk, A. (2025). Cardiorespiratory and metabolic consequences of detraining in endurance athletes. PMC.

Vikmoen, O., et al. (2025). Strength Training Improves Exercise Economy in Triathletes During a Simulated Triathlon. ResearchGate.

Mølmen, K. S., et al. (2025). Block periodization of endurance training - a systematic review and meta-analysis. PMC.

CyclingUpToDate. (2025). Is this what Tadej Pogacar improved the most in 2024: "When I am fatigued, I don't lose so much of my explosiveness anymore".

Voices generated by artificial intelligence from the scientific report produced by the Lactate team.

Episode 21 : Holiday Survival Guide: How to Train Smart & Enjoy the Feasts 🎄

💬 Got a question or feedback? Write us at: [email protected]

☕ Buy a Gel Caf for Lactate to support the work:⁠ https://ko-fi.com/lactate⁠⁠⁠⁠

Summary: The holiday paradox—balancing monastic discipline with festive hedonism—often leads to guilt or fitness loss, but physiology offers a smarter path. We deconstruct the desynchronized kinetics of detraining, where plasma volume and mitochondrial enzymes like Citrate Synthase decay rapidly (-28% in 10 days) while structural adaptations like capillary density remain robust. Metabolically, acute high-fat overfeeding can reduce insulin sensitivity by 28% in a single day, and alcohol ingestion blunts muscle protein synthesis by 24% via mTOR inhibition. To navigate this, apply the Minimum Effective Training Dose (METD): prioritize frequency over duration with short (30–45 min) high-intensity sessions every 48–72 hours to "cauterize" hemodynamic loss. Utilize the "Reynolds Walk" (10 mins post-meal) to activate non-insulin-dependent glucose uptake, and follow the lead of elite teams like Visma | Lease a Bike by pivoting to high protein on rest days.

Keywords: detraining kinetics, plasma volume, minimum effective training dose, metabolic flexibility, reynolds walk, muscle protein synthesis, insulin sensitivity

🎙️ Lactate, the podcast that deciphers science to improve your performance.

Key references :

Mujika, I., & Padilla, S. (2000). Cardiorespiratory and metabolic consequences of detraining in endurance athletes. Sports Medicine. https://pmc.ncbi.nlm.nih.gov/articles/PMC10853933/

Spiering, B. A., et al. (2021). Maintaining Physical Performance: The Minimal Dose of Exercise Needed to Preserve Endurance and Strength Over Time. Journal of Strength and Conditioning Research. https://pubmed.ncbi.nlm.nih.gov/33629972/

Parr, E. B., et al. (2014). Alcohol ingestion impairs maximal post-exercise rates of myofibrillar protein synthesis following a single bout of concurrent training. PLOS ONE. https://pubmed.ncbi.nlm.nih.gov/24533082/

Reynolds, A. N., et al. (2016). Advice to walk after meals is more effective for lowering postprandial glycaemia in type 2 diabetes mellitus than advice that does not specify timing. Diabetologia. https://pubmed.ncbi.nlm.nih.gov/27747394/

Parry, S. A., et al. (2017). A Single Day of Excessive Dietary Fat Intake Reduces Whole-Body Insulin Sensitivity. Nutrients. https://pmc.ncbi.nlm.nih.gov/articles/PMC5579612/

Voices generated by artificial intelligence from the scientific report produced by the Lactate team.

Episode 20 : Electrolytes 2.0: Are You Getting More Than Just Sodium? 🧂

💬 Got a question or feedback? Write us at: [email protected]

☕ Buy a Gel Caf for Lactate to support the work:⁠ https://ko-fi.com/lactate⁠⁠⁠⁠

Summary:

Forget the marketing hype around "full-spectrum" electrolytes; the science of endurance performance doubles down on sodium precision while debunking the need for acute potassium or magnesium replacement. Sweat is a filtrate of blood plasma where sodium dominates ($230–2000+ mg/L$), whereas potassium and magnesium losses are negligible compared to your body's vast intracellular stores. Sodium is not just for fluid balance; it acts as the essential key for the SGLT1 transporter to unlock carbohydrate absorption, allowing elite fueling rates of $90–120g/hr$ without GI distress. The popular belief that mineral depletion causes cramping is largely a myth; modern evidence points to the "Altered Neuromuscular Control" theory, where fatigue disrupts motor neuron inhibition, treated best by pacing, stretching, or TRP agonists like pickle juice. For advanced buffering, sodium bicarbonate offers a dual benefit of neutralizing metabolic acidosis and expanding plasma volume, provided you manage the massive sodium load ($5000+ mg$). Elite protocols from Kristian Blummenfelt to Visma | Lease a Bike prioritize measuring individual sweat sodium concentration to tailor intake, proving that salt, managed with scientific precision, remains the undisputed king of hydration.

Keywords:

electrolytes, sodium, sglt1, neuromuscular fatigue, cramping, bicarbonate, hydration, sweat rate, endurance

🎙️ Lactate, the podcast that deciphers science to improve your performance.

Key references :

Baker, L. B., et al. (2018). Normative data on regional sweat-sodium concentrations of professional male team-sport athletes. Journal of the International Society of Sports Nutrition. https://pmc.ncbi.nlm.nih.gov/articles/PMC5661918/

Hew-Butler, T., et al. (2017). Exercise-Associated Hyponatremia: 2017 Update. Frontiers in Medicine. https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2017.00021/full

Garrison, S. R., et al. (2020). Magnesium for skeletal muscle cramps. Cochrane Database of Systematic Reviews. https://pubmed.ncbi.nlm.nih.gov/32956536/

Schwellnus, M. P., et al. (2009). Exercise-Associated Muscle Cramp—Doubts About the Cause. Sports Medicine. https://pmc.ncbi.nlm.nih.gov/articles/PMC5857054/

Gough, L. A., et al. (2021). Enhancing exercise performance and recovery through sodium bicarbonate supplementation. Sports Medicine. https://pmc.ncbi.nlm.nih.gov/articles/PMC11519211/

Hofman, D. L., et al. (2016). Sweating Rate and Sweat Sodium Concentration in Athletes. Sports Medicine. https://pmc.ncbi.nlm.nih.gov/articles/PMC5371639/

 Voices generated by artificial intelligence from the scientific report produced by the Lactate team.

Episode 19 : Heart Rate Mistake: Why 90% of Amateurs Train WRONG 📉

💬 Got a question or feedback? Write us at: [email protected]

☕ Buy a Gel Caf for Lactate to support the work:⁠ https://ko-fi.com/lactate⁠⁠⁠⁠

Summary: Why does "training harder" often lead to stagnation while elite athletes slow down to get faster? The "Black Hole" of training (Zone 3) creates a metabolic mismatch where reliance on glycolysis and Type II fiber recruitment generates excessive reactive oxygen species (ROS) and autonomic fatigue without stimulating the specific mitochondrial adaptations of true endurance. Scientific consensus confirms that performance relies on Zone 2 (below VT1) to maximize MCT1 transporter proliferation and fat oxidation, effectively decoupling the sensation of work from the biology of adaptation. Stop using the invalid "220 minus age" formula ; instead, validate your aerobic ceiling with the "Talk Test" (comfortable speech) or a Heart Rate Drift Test (keeping decoupling below 5% over 60 minutes). For recovery, discipline is key: stay strictly below 50% of your FTP or 70% of HRmax to avoid parasympathetic stress , much like Mathieu van der Poel, who rides at half his capacity on easy days to build a "Mitochondrial Ferrari" engine.

Keywords: zone 2, black hole, heart rate drift, vt1, talk test, mitochondria, polarized training, recovery, ftp, ros

🎙️ Lactate, the podcast that deciphers science to improve your performance.

Key references :

Seiler, S. (2010). What is best practice for training intensity and duration distribution in endurance athletes? International Journal of Sports Physiology and Performance, 5(3), 276-291. https://journals.humankinetics.com/view/journals/ijspp/5/3/article-p276.xml

Seiler, S., Haugen, O., & Kuffel, E. (2007). Autonomic recovery after exercise in trained athletes: intensity and duration effects. Medicine and Science in Sports and Exercise, 39(8), 1366-1373. http://instituteofmotion.com/wp-content/uploads/2021/01/Autonomic-Recovery-after-Exercise-in-Trained-Athletes-intensity-and-duration-effects-S-Seiler.pdf

Tanaka, H., Monahan, K. D., & Seals, D. R. (2001). Age-predicted maximal heart rate revisited. Journal of the American College of Cardiology, 37(1), 153-156. https://pubmed.ncbi.nlm.nih.gov/11153730/

San-Millán, I., & Brooks, G. A. (2018). Assessment of Metabolic Flexibility by Means of Measuring Blood Lactate, Fat, and Carbohydrate Oxidation Responses to Exercise in Professional Endurance Athletes and Less-Fit Individuals. Sports Medicine, 48(2), 467-479.

Hydren, J. R., & Cohen, B. S. (2015). Current scientific evidence for a polarized cardiovascular endurance training model. Journal of Strength and Conditioning Research, 29(12), 3523-3530.

Maunder, E., Seiler, S., & Mildenhall, M. J. (2021). The Importance of 'Durability' in the Physiological Profiling of Endurance Athletes. Sports Medicine, 51(8), 1619-1628.

Voices generated by artificial intelligence from the scientific report produced by the Lactate team.

Episode 18 : [Science vs. Myth #9] The "Legal Doping" Trap: Is Beetroot Juice Just Expensive Hype? 🫜

💬 Got a question or feedback? Write us at: [email protected]

☕ Buy a Gel Caf for Lactate to support the work:⁠ https://ko-fi.com/lactate⁠⁠⁠⁠

Summary: Marketing promises a staggering 16% boost in time-to-exhaustion, but the scientific reality reveals a much tighter margin where real-world time-trial gains shrink to roughly 1% or an average of 4.6 watts. The mechanism isn't about adding fuel, but rather a "firmware update" for your mitochondria via the nitrate-nitrite-nitric oxide pathway, which reduces the oxygen cost of ATP production specifically when muscle tissues are hypoxic and acidic. To unlock this efficiency, you need a standardized dose of 400–500 mg (5–8 mmol) consumed 2 to 3 hours pre-exercise, or a 3–7 day chronic loading phase, while strictly avoiding antibacterial mouthwash that kills the oral bacteria essential for converting nitrate to nitrite. However, a cruel paradox exists where elites with a VO₂max over 65 ml/kg/min often see no statistically significant benefit because their training has already maximized endogenous nitric oxide production, leaving recreational athletes as the primary responders. Yet, even Jonas Vingegaard’s team used standardized nitrate shots during his 2023 Tour de France victory, proving that at the absolute pinnacle, the goal is the relentless aggregation of every possible marginal gain.

Keywords: dietary nitrate, nitric oxide, mitochondrial efficiency, vo₂max, beetroot juice, oxygen economy, endurance performance, time trial, marginal gains, elite athlete paradox

🎙️ Lactate, the podcast that deciphers science to improve your performance.

Key references :

Poon, E. T. C., Chung, J. W. Y., Lee, K. K. H., Wong, S. H. S., & Huang, W. Y. J. (2023). Dietary Nitrate Supplementation and Exercise Performance: An Umbrella Review of 20 Published Systematic Reviews with Meta-analyses. Sports Medicine, 53(10), 1913-1936. https://doi.org/10.1007/s40279-023-01891-z

Senefeld, J. W., Wiggins, C. C., Regimbal, R. J., Dominelli, P. B., Baker, S. E., & Joyner, M. J. (2020). Ergogenic effect of nitrate supplementation: a systematic review and meta-analysis. Medicine & Science in Sports & Exercise, 52(10), 2250-2261. https://doi.org/10.1249/MSS.0000000000002362

Gao, C., Gupta, S., Adli, T., Hou, W., Cools, F., Schoutteten, M. K., Van Proeyen, K., Eynde, E. V., Liddle, L., & Vandekerckhove, K. (2021). The effects of dietary nitrate supplementation on endurance exercise performance and cardiorespiratory measures in healthy adults: a systematic review and meta-analysis. Journal of the International Society of Sports Nutrition, 18(1), 55. https://doi.org/10.1186/s12970-021-00451-8

McMahon, N. F., Leveritt, M. D., & Pavey, T. G. (2017). The effect of dietary nitrate supplementation on endurance exercise performance in healthy adults: a systematic review and meta-analysis. Sports Medicine, 47(4), 735-756. https://doi.org/10.1007/s40279-016-0617-7

Maughan, R. J., Burke, L. M., Dvorak, J., Larson-Meyer, D. E., Peeling, P., Phillips, S. M., ... Engebretsen, L. (2018). IOC consensus statement: dietary supplements and the high-performance athlete. British Journal of Sports Medicine, 52(7), 439-455. https://doi.org/10.1136/bjsm-2018-099027

Jones, A. M. (2022). Dietary nitrate and exercise performance: New strings to the beetroot bow. Gatorade Sports Science Institute SSE #228. https://www.gssiweb.org/sports-science-exchange/article/dietary-nitrate-and-exercise-performance-new-strings-to-the-beetroot-bow

Voices generated by artificial intelligence from the scientific report produced by the Lactate team.

Episode 17 : Anemia: The Silent Performance Killer in Athletes (And How to Beat It) 🩸

💬 Got a question or feedback? Write us at: [email protected]

☕ Buy a Gel Caf for Lactate to support the work:⁠ https://ko-fi.com/lactate⁠⁠⁠⁠

Summary: Up to 35% of female athletes and 11% of males suffer from a deficiency that acts as an invisible anchor, potentially cutting performance by 2-20% even without clinical anemia. It is not just about oxygen transport via hemoglobin; iron is the ignition switch for your mitochondria to produce ATP, meaning low ferritin impairs cellular energy even if oxygen delivery is normal. The real enemy is hepcidin, a hormone triggered by inflammation (IL-6) that peaks 3-6 hours post-exercise, locking the cellular doors to iron absorption precisely when you try to recover. Stop wasting supplements during this "hepcidin block"; time your intake for morning rest periods or at least 6-8 hours post-session, aiming for a ferritin target of >40-50 ng/mL rather than the generic laboratory "normal." Adopt alternate-day dosing or pair 100 mg of elemental iron with Vitamin C to bypass the blockade and boost non-heme absorption by up to 67%; Paula Radcliffe’s 2004 Athens collapse illustrates how this physiological failure can seize the engine under heat and stress.

Keywords: iron deficiency, anemia, hepcidin, endurance, hemoglobin, ferritin, vo₂max, mitochondria, red-s, running economy

🎙️ Lactate, the podcast that deciphers science to improve your performance.

Key references :

Burden, R. J., Morton, K., Richards, T., Whyte, G. P., & Pedlar, C. R. (2015). Is iron treatment beneficial in, iron-deficient but non-anemic (IDNA) endurance athletes? A systematic review and meta-analysis. British Journal of Sports Medicine, 49(21), 1389-1397. https://doi.org/10.1136/bjsports-2014-093624

Clénin, G., Cordes, M., Huber, A., Schumacher, Y. O., Noack, P., Scales, J., & Kriemler, S. (2015). Iron deficiency in sports - definition, influence on performance and therapy. Swiss Medical Weekly, 145, w14196. https://doi.org/10.4414/smw.2015.14196

McKay, A. K., Peeling, P., Pyne, D. B., Tee, N., & Leckey, J. J. (2024). The effects of iron deficiency and iron supplementation on sports performance in high-level female athletes: A systematic review. Journal of Science and Medicine in Sport, 27(7), 405-415. https://doi.org/10.1016/j.jsams.2024.03.003

Peeling, P., Sim, M., Badenhorst, C. E., Dawson, B., Govus, A. D., Abbiss, C. R.,... & Swinkels, D. W. (2019). The effects of exercise on hepcidin: a systematic review and meta-analysis. Sports Medicine, 49(5), 717-727. https://doi.org/10.1007/s40279-019-01108-2

Sim, M., Garvican-Lewis, L. A., Cox, G. R., Govus, A., McKay, A. K., Stellingwerff, T., & Peeling, P. (2019). Iron considerations for the athlete: a narrative review. European Journal of Applied Physiology, 119(7), 1463-1478. https://doi.org/10.1007/s00421-019-04157-y

Woods, A., Garvican-Lewis, L. A., Saunders, P. U., Lovell, G., & Peeling, P. (2024). Effect of intravenous iron therapy on exercise performance, fatigue scores and mood states in iron-deficient recreationally active females of reproductive age: a double-blind, randomised control trial (IRONWOMAN Trial). British Journal of Sports Medicine, 59(13), 921-928. http://dx.doi.org/10.1136/bjsm-2023-107769

 Voices generated by artificial intelligence from the scientific report produced by the Lactate team.

Episode 16 : [Science vs. Myth #8] Is BCAA The Biggest SCAM in Sports Nutrition? 💊

💬 Got a question or feedback? Write us at: [email protected]

☕ Buy a Gel Caf for Lactate to support the work:⁠ https://ko-fi.com/lactate⁠⁠⁠⁠

Summary: The supplement industry markets BCAAs as an anabolic necessity, but high-level physiology reveals a "bait-and-switch" where muscle growth promises clash with biochemical reality. While the amino acid leucine potently activates the mTORC1 pathway to signal growth, the absence of the other six essential amino acids creates an "empty construction site" where net muscle protein synthesis is impossible. For you, the endurance athlete already consuming adequate protein (1.4–2.0 g/kg), isolated BCAAs are largely a redundant placebo; however, they possess a validated niche utility for reducing delayed onset muscle soreness (DOMS) and attenuating creatine kinase markers. To leverage this, utilize a prophylactic loading protocol: consume 10–20 g/day (or 200 mg/kg) in a 2:1:1 ratio, split pre- and post-exercise, starting 7–10 days before high-stress blocks like training camps. While specific profiles like plant-based athletes or those in extreme caloric deficits may find marginal gains, the hierarchy of needs remains absolute; as evidenced by Tadej Pogačar's collapse on the Col de la Loze, performance is dictated by carbohydrate availability and gut integrity, not by isolated amino acid powders.

Keywords: bcaa, mtorc1, muscle protein synthesis, doms, recovery, leucine, endurance nutrition, central fatigue, protein intake, supplements

🎙️ Lactate, the podcast that deciphers science to improve your performance.

Key references :

• Doma, K., Singh, U., Boullosa, D., & Connor, J. (2021). The effect of branched-chain amino acid on muscle damage and performance recovery following strenuous exercise: a systematic review and meta-analysis. Applied Physiology, Nutrition, and Metabolism, 46(11), 1303-1313. https://doi.org/10.1139/apnm-2021-0110
• Hormoznejad, R., Zare Javid, A., & Mansoori, A. (2019). Effect of BCAA supplementation on central fatigue, energy metabolism substrate and muscle damage to the exercise: a systematic review with meta-analysis. Sport Sciences for Health, 15(2), 265-279. https://doi.org/10.1007/s11332-019-00542-4
• Martin-Rincon, M., et al. (2022). Oral Branched-Chain Amino Acids Supplementation in Athletes: A Systematic Review. Nutrients, 14(19), 4002. https://doi.org/10.3390/nu14194002
• Plotkin, D. L., et al. (2023). The effects of branched-chain amino acids on muscle protein synthesis, muscle protein breakdown and associated molecular signalling responses in humans: An update. Nutrition Research Reviews, 37(2), 1-36. https://doi.org/10.1017/S095442242300018X
• Salem, A., et al. (2024). Attenuating Muscle Damage Biomarkers and Muscle Soreness After an Exercise-Induced Muscle Damage with Branched-Chain Amino Acid (BCAA) Supplementation: A Systematic Review and Meta-analysis with Meta-regression. Sports Medicine - Open, 10(1), 47. https://doi.org/10.1186/s40798-024-00713-3
• Wolfe, R. R. (2017). Branched-chain amino acids and muscle protein synthesis in humans: myth or reality? Journal of the International Society of Sports Nutrition, 14, 30. https://doi.org/10.1186/s12970-017-0184-9

Voices generated by artificial intelligence from the scientific report produced by the Lactate team.

Episode 15 : Zone Warfare: FTP vs. VMA. Are You Training in the RIGHT Zone? 🧬

💬 Got a question or feedback? Write us at: [email protected]

☕ Buy a Gel Caf for Lactate to support the work:⁠ https://ko-fi.com/lactate⁠⁠⁠⁠

Summary: Stop chasing a "magic number" that may not represent your physiology and start building a resilient engine by understanding the distinct roles of your metabolic threshold and aerobic ceiling. Functional Threshold Power (FTP) is not simply your "hour power," but the physiological steady state where lactate production matches clearance, heavily reliant on MCT transporter density and mitochondrial efficiency. Conversely, Maximal Aerobic Velocity (VMA) targets the severe domain to maximize cardiac output and trigger rapid mitochondrial biogenesis via AMPK signaling, raising the absolute roof of your performance. To optimize training, diagnose your profile with a 3-minute and 30-minute field test, then execute targeted blocks: extend your TTE with threshold intervals like 4x8 minutes at 98-103% FTP, or raise your VO₂max with 5x4 minute repeats at 110-120% FTP. Remember that VMA values are highly protocol-dependent, so consistency in testing is vital for accurate prescription. Real-world dominance requires mastering both systems, much like Tadej Pogačar, who combines a massive threshold for long climbs with explosive VMA-level power for decisive attacks.

Keywords: ftp, vma, vo₂max, lactate threshold, polarized training, mitochondrial biogenesis, anaerobic speed reserve, cycling power, endurance physiology

🎙️ Lactate, the podcast that deciphers science to improve your performance.

Key references :

• Borszcz, F. K., Tramontin, A. F., & Costa, V. P. (2018). Is the functional threshold power interchangeable with the maximal lactate steady state in trained cyclists? International Journal of Sports Medicine, 39(10), 737-742. https://doi.org/10.1055/a-0645-9333
• Burnley, M., & Jones, A. M. (2018). Power-duration relationship: Physiology, fatigue, and the limits of human performance. European Journal of Sport Science, 18(1), 1-12. https://doi.org/10.1080/17461391.2016.1249524
• Poole, D. C., & Jones, A. M. (2017). Measurement of the maximum oxygen uptake Vo2max: Vo2peak is no longer acceptable. Journal of Applied Physiology, 122(4), 997-1002. https://doi.org/10.1152/japplphysiol.01063.2016
• Rosenblat, M. A., Perrotta, A. S., & Vicenzino, B. (2019). Polarized vs. threshold training intensity distribution on endurance sport performance: A systematic review and meta-analysis of randomized controlled trials. The Journal of Strength & Conditioning Research, 33(12), 3491-3500. https://doi.org/10.1519/JSC.0000000000003359
• Seiler, S. (2010). What is best practice for training intensity and duration distribution in endurance athletes? International Journal of Sports Physiology and Performance, 5(3), 276-291. https://doi.org/10.1123/ijspp.5.3.276
• Valenzuela, P. L., Muriel, X., Torres-Peralta, R., et al. (2023). Functional threshold power is not a valid marker of the maximal metabolic steady state. Journal of Sports Sciences, 41(10), 941-949. https://doi.org/10.1080/02640414.2023.2176045

Voices generated by artificial intelligence from the scientific report produced by the Lactate team.