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Master CO₂ Tolerance for More Powerful Altitude Performance

Climber on a snowy mountain, illustrating CO₂ tolerance and endurance at high altitude

CO₂: The ‘Waste’ Gas That’s Not Wasteful At All → It’s Actually Fuel for More Endurance By Anthony Lorubbio, founder and head coach at Recal Carbon dioxide is often misunderstood. When most people think of carbon dioxide (CO₂), they may picture […]

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The 5 Breathing Self-Assessments Every Athlete Should Know

Man sitting on top of the mountain watching the sunset

These self-assessments give you a clear snapshot, without the use of special equipment, of how well your respiratory system is working, what needs improvement, and where you can focus your breathwork training for better performance at altitude, in endurance sports, and in everyday life.

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How One Mountaineer Used Breathwork Training to Fast-Track His Summit Attempt of Khosar Gang

For Pakistani mountaineer Umer Latif, climbing high-altitude peaks is nothing new. As the founder of an adventure trekking company (Beyond The Valley), but physically based in Lahore, a city that sits a mere 650 feet above sea level, he’s made a career out of guiding people into the rugged beauty of the Karakoram. But this past summer, he decided to take on a unique challenge: could he summit Khosar Gang, a formidable 6,050 meter / 19,850-foot peak, with only three days of acclimatization?

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4 Ways I Was Able to Feel Less Out-of-Breath While Climbing at High Altitude

Improve CO₂ tolerance for better breathing on high-altitude

In this article, I cover how I was able to train for that feeling of breathlessness and climb better at high altitude. I talk about assessments to analyze where you’re at with your own breathing, plus how to specifically train to improve.

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How I Use Breathing Zones to Know If My Breathing Mechanics Are Most Optimal

Man with one hand on his chest and one hand on his belly.

Breathing zones determine how efficiently we take in oxygen, especially for mountain endurance athletes. We breathe over 20,000 times a day, yet most of us never stop to ask: Am I actually doing it right?

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Should You Get Metabolic Testing Before Your Expedition?

A woman undergoes metabolic testing

Should You Get Metabolic Testing Before Your Expedition? The 3 metabolic assessments (and a 4th bonus one) you should consider before your endurance challenge at altitude.      This blog post is part of a series called 100 Days to […]

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Nasal Breathing for Altitude Endurance: 4+ Ways I Improved My Performance

Man standing on a snowy elevated mountain.

Have you ever wondered how to train for altitude if you live at or near sea level?
With Recal’s background in breathwork-based coaching, we’ve designed a 5-week training program specifically to address this situation: one where you’re looking for a way to train for altitude….from anywhere.

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An Inside Look at a High Altitude Breathwork Training Workshop

Have you ever wondered how to train for altitude if you live at or near sea level?
With Recal’s background in breathwork-based coaching, we’ve designed a 5-week training program specifically to address this situation: one where you’re looking for a way to train for altitude….from anywhere.

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Climb the Seven Summits: Africa’s Mount Kilimanjaro

View of Mt Kilimanjaro with a snow-covered summit and clouds just underneath.

Climb Mount Kilimanjaro How to Prepare for the Altitude and Acclimatization at Kilimanjaro Climbing Mount Kilimanjaro is a dream for many adventurers, but it comes with its share of altitude challenges. As you ascend the highest peak in Africa, reaching […]

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