I've been fortunate this week to chat with 2 professionals in sports science & communication for their respective podcasts. One recurring question was about the intake of 120g CHO/h during exercise and our studies. A perfect opportunity to provide a bit of context to the topic.

Taking advantage of the opportunity, I thought it would be cool to explain it here through a small thread.

1) What we did is to study a specific effect in a very specific context.



mdpi.com/2072-6643/12/5…
ncbi.nlm.nih.gov/pmc/articles/P…

1. Nitric Oxide (NO) pathway rise in interest in the health and performance fields. Diverse supplementation approaches ignite NO production, yielding multiple benefits, including adaptations from cell metabolism to whole-body physiology. 2. As physiologists, we have been always interested in the topic and some years ago we started a series of humble studies led by @MielgoAyuso, researching an emerging area: combined supplementation protocols to optimise NO pathway performance.

Let me introduce you:

Short threat on metabolism.

When discussing human energy budget, I have been always interested in understanding which one comes first: Energy intake or expenditure.

IMHO, first you need to "show capacity" (⬆️ your mito. function) and then "ask for resources" (⬆️energy intake). Why dogs 📸?

I have always looked at dogs (especially Balto😏), as they are a good example of what the mammalian metabolism can do. Sled dogs not only show an AMAZING mitochondrial function, but some interesting facts in energy budget.

Do you know how many kcal do they eat?

What does endurance metabolism look like in the current sport era? Are world´s greatest endurance athletes changing our way of understanding metabolic determinants?

Probably I'm wrong, but I want to explain a reflection based on what we learn from cyclists.

📸 @INEOSGrenadiers Traditionally fat metabolism (how we use fats) has been on the top of endurance research when aiming to explain performance determinants. In a nutshell, those with higher fat ox. rates, both in height (peak) and width (% intensity), have been postulated as potential winners.

Here we go with some random-interesting facts about lactate and metabolism. A dynamic threat where everybody can add interesting info. (following the order) about lactate and its implication in exercise, health, and disease metabolism.
#Lactatefacts by @Glut4Science and @MVAitor Let´s start learning!

1- Glycolysis byproduct that can be produced and utilized by various (almost every) body cell.
2- Highly dynamic metabolite as it can "travel" through different intra-extra cellular compartments.

#Lactatefacts by @Glut4Science and @MVAitor

FRUCTOSA Y RENDIMIENTO DEPORTIVO: Mucho más que 0,5 x glucosa, como dicta el ya famoso ratio 2:1 (glucosa:fructosa). Ayer escribí sobre ello en @glut4science y aquí va un hilo resumen que espero sea interesante. Si te pido que escribas en orden de prioridad las palabras Glucosa y Fructosa, y les des el tamaño de letra que les correspondería en cuanto a valor, ¿qué harías? Seguramente la GLU 1ª y la FRU (con la mitad de tamaño) 2ª.Voy a intentar que te lo pienses un poco más la próx. vez.