@MVAitor

Physiology & Metabolism Researcher, PhD | Performance Director at Salomon | Exploring 120 & Exolactate | Dreaming at @glut4science & @methub_es

glut4science.com
Joined May 2011
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  • Followers9.9K
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Is Exogenous Lactate the "Holy Grail" of sports fuelling? For years, we’ve been focused on >120g/h CHO intake. But how can we explore new limits? Lactate is not a waste. It´s the most efficient and preferential fuel in the human body. A thread on the next metabolic frontier🧵
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Aitor Viribay retweeted
Jorge Martinez@coachjorgemOct 17
"I take 80 grams in T1. Then approximately 160 grams per hour on the bike, and a little lower on the run, around 100. We’ve been pushing up, up, up, at the same time as the power is going up and the pace is going up." Gustav Iden, 2nd place at the Ironman World Championship
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Olli-Pekka Nuuttila@OPNuuttilaOct 15
I was thinking how little research has been done on durability/physiological resilience in XC skiing. Fun fact: the first study on this topic may have been in XC skiing! In 1963, Åstrand et al. reported decreased VO2max and max workload after 85k race. doi.org/10.1152/jappl.1963.1…

Blood lactates after prolonged severe exercise | Journal of Applied Physiology | American Physiol...

Blood was drawn from cross-country skiers at 1–3 min after the finish in competitions on distances from 10 to 85 km and the blood lactate determined. Despite a maximal effort of the skiers, accentu...

journals.physiology.org
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Thank you very much for the mention, India. Why does the Kona marathon make or break athletes? 220triathlon.com/news/kona-m…

Why does the Kona marathon make or break athletes? | 220 Triathlon

The heat, humidity and accumulated fatigue makes the Ironman World Championship Kona marathon one of the toughest.

220triathlon.com
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Today was a day to digest the paper I shared yesterday and to bring down all the information. To be honest, it just started. This figure is so interesting. No lactate into the muscle meant no exercise capacity. Thanks for the help @borjammt journals.physiology.org/doi/…
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New study describing the role of Lactate through its transporters MCT1 and MCT4 in muscular function. journals.physiology.org/doi/…

Physiological functions of MCT1 and MCT4 in intramuscular lactate shuttle, exercise performance,...

Lactate shuttling between glycolytic and oxidative muscle fibers via monocarboxylate transporters MCT1 and MCT4 is fundamental to muscle energy homeostasis, yet the physiological necessity of these...

journals.physiology.org
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The greatest of all time is the fastest ever on the streets of Melbourne. 🥹❤️ Eliud Kipchoge wins the @melbmara in a new course record of 2:09:10. #EliudsRunningWorld
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Eurosport.es
@Eurosport_ESOct 10
👏 ION Y PELLO, GRACIAS POR TODO 🫡 El homenaje habitual a todos los ciclistas que disputan su última carrera en el pelotón: Pello Bilbao, Ion Izagirre, Rudy Molard, Bauke Mollema y Odd Christian Eiking #IlLombardia #LaCasadelCiclismo

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Gracias Fissac!!
Fissac
@Fissac_esOct 10
En 2020 Aitor Viribay (@MVAitor) publicaba su primer artículo en Fissac. Entonces, ingerir 120-150 g/h de carbohidratos era poco habitual. Hoy se ha normalizado. 6 años después, llegará un nuevo artículo suyo. Mientras, recuperamos aquel primero 👇 fissac.com/ingesta-de-hidrat…

Ingesta de hidratos de carbono durante el ejercicio y fatiga neuromuscular: ¿Una relación con...

La evidencia en torno a los efectos de la ingesta de hidratos de carbono durante el ejercicio en el retraso de la fatiga es contundente. Sin embargo, los mecanismos de acción se han relacionado casi...

fissac.com
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Aitor Viribay retweeted
Jorge Martinez@coachjorgemOct 9
The usual suspects are arguing about CHO intake for endurance performance. Meanwhile, many elite triathletes will target 150+ g/hour at tomorrow's Ironman World Championship. Many of our athletes will be in the 120+ g/h range; why? Because we've seen the results it provides...
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Eric Topol
@EricTopolOct 8
New @ScienceMagazine A breakthrough in understanding why we get fever and an inflammation response to vaccines. The gut microbiome chronic production of flagellin Paves the way to potentially prevent these acute phase side-effects in the future science.org/doi/10.1126/scie…
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Check this one on CHO and durability!! Even if it’s hard to understand, one of the few papers demonstrating effects of CHO on durability. Well done - this research group is fantastic btw. Make you you follow them!
Oscar Mazza@OscarMazza18Oct 8
New research from our group: 100 vs. 60 g CHO·h⁻¹ during prolonged cycling improved performance durability in trained male endurance athletes. @KasperGejl @JoachimNielsen6 @nortenblad ovid.com/jnls/acsm-msse/full…

Carbohydrate Intake of 100 vs. 60 g·h⁻¹ During... : Medicine & Science in Sports & Exercise

Purpose:To investigate the effects of ingesting 60 versus 100 g CHO·h⁻¹ during prolonged cycling on durability, substrate oxidation, and muscle...

ovid.com
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Make sure*
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Lactate is a buffer agent, but not only on pH. 👉🏼 Lactate buffers CARBOHYDRATES in the body. 🛩️🆙 Lactate elevates up the travelling status of carbons: from traveling in Economy (glucose) to a privilege seat in Business (Lactate) 😜 Read this paper 👇🏼 pubmed.ncbi.nlm.nih.gov/3838…
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Aitor Viribay retweeted
Javier Gonzalez@Gonzalez_JTOct 7
Some have argued that 10 g of carbohydrate per hour is sufficient to prevent hypoglycaemia during exercise. Latest data from @HenryJMartyn @JamesyMorton clearly disprove this. Absolute statements only need a single observation to be disproved. doi.org/10.1249/MSS.00000000…
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Stephen Seiler@StephenSeilerOct 6
Never trust a "Readiness Score" that cannot tell the difference between a hard interval session and an argument with your boss.
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Tadej Debevec@DebevecTadejOct 5
New in @EJAP_official Moderate altitude-mimicking CO-induced inhibition of hemoglobin oxygen binding decreased middle-distance swimming speed in male national-level swimmers link.springer.com/article/10…

Moderate altitude-mimicking CO-induced inhibition of hemoglobin oxygen binding decreased middle-d...

European Journal of Applied Physiology - Performance in endurance sports is generally linked to aerobic capacity, but this link is less clear in swimming due to its technical complexity and...

link.springer.com
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Long live to these studies!! Well done to authors (@BasVanHooren et al) and thanks for the contribution. Priceless findings around the upper limit of energy transformation. sciencedirect.com/science/ar…
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Aitor Viribay retweeted
Nicholas Fabiano, MD
@NTFabianoSep 27
Sleep may literally be recharging your brain. A new theory states that myelin accumulates energy during sleep, acting as a proton capacitor.
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New one in @JPhysiol 🫀 An integrative model suggests that ATP supply–demand imbalance drives reperfusion injury, with mitochondrial NADH production emerging as a key determinant of Na⁺ and Ca²⁺ overload. physoc.onlinelibrary.wiley.c…

Integrative simulation analysis of myocardial ischaemia–reperfusion injury

Abstract figure legend A comprehensive mathematical model of ventricular myocyte was developed to gain insights into the mechanisms underlying cardiac ischaemia–reperfusion injury. The model integr...

physoc.onlinelibrary.wiley.com
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Versión en español (Prox Eng): más de una década de investigación, análisis de datos y trabajo directo con atletas amateurs y profesionales. Version EPUB para eBook : payhip.com/GabrielDellaMatti…
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