iiinova — where your digital self keeps evolving

Ignacio Fernández Jarillo @igfjarillo.bsky.social · 03/07/2026

Science & Cycling 2026: great talks, inspired, back to work. Thank you @inefcat.bsky.social for the opportunity.

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Ignacio Fernández Jarillo @igfjarillo.bsky.social · 27/06/2025

An ongoing case study: I love working alongside dedicated athletes. Here are some insights into Xavi Estivill’s progress over the past 18 months.

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Ignacio Fernández Jarillo @igfjarillo.bsky.social · 10/06/2025

One key aspect for us has been intensity control through regular lactate measurements. This has helped Albert gain a much deeper understanding of himself, and it’s allowed me to identify trends in his profile without needing to conduct frequent tests.

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Ignacio Fernández Jarillo @igfjarillo.bsky.social · 10/06/2025

With that performance he has finished a mega first part of the season: - 10km PB (36:14) -1'30 season PB - HM debut (1h23) - Half Ironman debut (4h32)

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Ignacio Fernández Jarillo @igfjarillo.bsky.social · 10/06/2025

I’m very proud of Albert’s journey. We started with a 40-minute 10K and a 20-minute power output of 225W at 65 kg body weight. To put things in perspective, today he was able to ride 90 km at 195W (now at 60 kg) and then run a hilly course at 4:18/km pace.

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Ignacio Fernández Jarillo @igfjarillo.bsky.social · 10/06/2025

Can’t be prouder of this guy! He crushed it with a 4h32 at Vitoria 70.3. We’ve been working together for over 1.5 years now. The last 7 months we’ve finally had uninterrupted training, after a challenging first 10 months marked by bike accidents and health issues.

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Ignacio Fernández Jarillo @igfjarillo.bsky.social · 14/05/2025

Last week, I had the opportunity to teach one of the sessions of the Triathlon course for Sports Science students at INEFC Barcelona. We explored physiological assessment in endurance sports from an integrative perspective.

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Ignacio Fernández Jarillo @igfjarillo.bsky.social · 31/03/2025

Open water project, brutal weekend, mega team. The learning never stops.

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Ignacio Fernández Jarillo @igfjarillo.bsky.social · 29/03/2025

Open Water Project, data collection day 1. Brutal day 🤝 @inefcat.bsky.social

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Ignacio Fernández Jarillo @igfjarillo.bsky.social · 25/03/2025

It doesn’t matter if I’m in the middle of a base phase or a specific training block—I’m always loyal to the once-a-week LT1 session. No need to be complicated: ≈35 minutes of total work, broken into intervals. I aim for a Borg RPE of around 11–12. This is always an internal load driven session.

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Ignacio Fernández Jarillo @igfjarillo.bsky.social · 18/03/2025

The process continues: Pilot testing #OpenWaterProject ✅ Spent the morning at @canalolimpic testing the MOXY and heart rate sensors. Exciting times ahead as we move closer to the official start of this project! Grateful to be part of this journey—big thanks to everyone involved.

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Ignacio Fernández Jarillo @igfjarillo.bsky.social · 14/03/2025

A highlight of the experience was the practical session in the hypobaric chamber at Bellvitge, where we simulated conditions at 5000m altitude and conducted the hypoxic test. This experience raised many intriguing questions that I look forward to exploring further in the future.

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Ignacio Fernández Jarillo @igfjarillo.bsky.social · 14/03/2025

Two weeks ago, I had the opportunity to delve into the topic of hypoxia as part of my Integrative Physiology master’s program. It was a privilege to learn from esteemed experts such as Jean-Paul Richalet, Ginés Viscor, José Antonio Calbet, and Anna Carceller.

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Ignacio Fernández Jarillo @igfjarillo.bsky.social · 14/03/2025

Training is progressing well in the pursuit of a sub-33-minute 10K. Yesterday’s session was a strong step forward, accumulating 30 minutes at LT2 with 5 x 6’ @ 3:45/km. Today’s focus: RMT, heat training, and isometric work. Learning while exercising ✌🏼

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Ignacio Fernández Jarillo @igfjarillo.bsky.social · 31/01/2025

And now, I’m learning to code in Python while studying for my second master’s in Physiology, preparing my first lessons as a teacher, writing my first scientific articles… and trying to break 33 minutes for 10K. Busy times! 😂 Hope this few "tweets" serve as a presentation ❤️

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Ignacio Fernández Jarillo @igfjarillo.bsky.social · 31/01/2025

Then, in December: Our communication titled “Can muscle oxygen saturation provide real-time insights into the glycolytic contribution during intervals in the severe intensity domain?” was accepted for presentation at the Young Researchers in Sports Sciences Conference, organized by UAB.

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Ignacio Fernández Jarillo @igfjarillo.bsky.social · 31/01/2025

Also in november I was part of a research summit that took place in the CAR of Sant Cugat were I did a presentation highlighting the potential of NIRS technology in the context of artistic swimming. Link: surl.li/gjecsr

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