1/4 Our last paper on durability in cycling has been published today in Int'l Journal of Sports Physiology and Performance In a previous paper published some months ago we showed how durability can be explained by different metabolic outcomes, such as CHO/FAT oxidation & gross efficiency. journals.humankinetics.com/view/journals/…

1/3 How do you expend your energy budget throughout the week - months? Consider you have a given number of KJs to expend on a week - that's the way we are planning now in elite running/cycling, btw. How would you expend them? Let´s get an example with the so famous Zone 2 👇

Se buscan voluntarios 👇🏼👇🏼👇🏼

1/2 Social media has dramatically changed what it takes to be a pro/elite athlete. Before, training process was hard with no rewards (shadow). Races a chance to get rewarded/show. Now, training is rewarded daily through SM interactions. Races expose you to an improbable reward.

It all started and finished as a team! Courtney Dauwalter & Ryan are true inspiration for all of us. Congratulations! Pacers & staff, thanks for the incredible experience across Arizona, USA. Lots of learnings and more coming through the data collected. Time to digest and grow!

To me, this is cooler than being quoted by a movie star. Aitor Viribay Morales is the superstar research whose writing strongly influenced our approach to carb intake (and fatigue resistance training theory) in coaching. He has changed the game forever 🙏

Cocodona 250 was a huge fueling challenge. How much you can fuel sustainably for 60h? Well, it really depends on your capacity to expend energy (energy budget). We will have DLW results very soon to understand the real energy expenditure during the race. The learning is massive!

Check the post on our website!

Thanks Christian for allowing us learning from you in real conditions. Physiology & metabolism in ultra trail running is a big field of learning. We assessed metabolic outcomes under fatigue in real scenario. Hopefully we can learn to apply the knowledge. Privileged! 📸A.Tellez

Are you really measuring the lactate you want to measure when your blood plasma / volume has changed (dehydration for example)? It is “hard to demonstrate” when working on the field (why has [La-] changed?factors…). But IMHO measuring Hct% can be a good way to normalize it 👍🏼

A paper we published some time ago. We wanted to evaluate CHO intake during ultra events as well as its relationship with fatigue (in terms of internal exercise load, exercise-induced muscle damage (EIMD) and post-exercise recovery) and GI problems. pubmed.ncbi.nlm.nih.gov/34071815/

And we also found very interesting data on recovery and neuromuscular function after completing the mountain marathon, comparing 60-90-120 g CHO/h. Field is open and progressing! pubmed.ncbi.nlm.nih.gov/32679728/

1/13 How much energy (Kcal) do trail runners expend in reality? A thread after testing pro athletes with DLW. 6 months ago, I changed my job to take a new opportunity. I changed sport discipline as well. Left cycling behind, and opened a new chapter in trail running and running.

Another great batch of testing at Salomon Design Center in Annecy. This time with our road runners. What a privilege to learn from them! 🤓👊🏼 We keep learning!

On the fuelling strategy periodisation throughout the race day: I've just remembered some resources I built back in 2019 (TDF example) when I was a "kid"- student. Haha so funny! I have learned a lot and I have slightly changed my approach - but think is still good to share it!

1/3 We have a fairly good understanding of exercising metabolism when fresh. However, how it works under fatigue is still a pending subject! How can we plan interventions for a fatigued body based on the knowledge we’ve got about fresh state? IMHO, it doesn’t make any sense!

Check this out !

New paper is out!

Athletes, if the body is not responding, it doesn’t really matter why at this point. Stop, reset, eat well, and get ready to start again. Do it as early as possible. Time is 💰 The more I know about physiology, the most important this point becomes in my perf. decision chart.

What’s been your best training session ever? Probably one you truly enjoyed. Maybe one you didn’t plan at all. Possibly one where you just went with the flow. The volitional aspect of training is key to adaptation and performance improvement. And yes, that’s basic physiology!!!