Breathe Stronger. Climb Higher. Go Farther.

Give Your Altitude Endurance an Edge

Our High Altitude Breathwork Training is scientifically designed to enhance your performance when you climb, run, or trek at elevation. Whether you’re preparing for Everest, tackling a mountain ultramarathon, or summiting your local peak, this program strengthens your respiratory muscles, improves oxygen efficiency, and builds lasting endurance at altitude.

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Start Training

Personal Coaching

Get one-on-one virtual sessions with Coach Anthony tailored to your needs.

On-Demand Video Library

Tap into 100+ pre-recorded trainings anytime, on any device.

Personal Progress Dashboard

Track your CO₂ tolerance, O₂ levels & workout history in one place.

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Recal’s Science-Backed 5-Week Breathwork Course

Train your lungs for high altitude—no fancy equipment required.

Recal’s 5-week online breathwork training is built on rigorous research and led by certified coach Anthony Lorubbio. Hundreds of athletes have used our system to conquer the world’s highest peaks and toughest ultras.

Our B.A.S.E Framework: 4 Pillars of High-Altitude Breathwork

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Better Breathing Mechanics

Optimize oxygen uptake with Nose-Slow-Low (N-S-L) technique.

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Adaptation Protocols

Safe CO₂ tolerance and intermittent hypoxia drills to simulate altitude.

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Strengthen Respiratory Muscles

Diaphragm and intercostal exercises to boost stamina.

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Elevate Your Performance

Apply new skills on the mountain or in your next race.

Not a meditation course—this is a physiologically grounded system designed to:

Increase O₂ Efficiency & Uptake

Build Respiratory Muscle Strength

Simulate Altitude at Sea Level

Prepare your Peak Performance

Your 5-Week Roadmap

Weekly Unlocks

Self-Paced

Video Guided

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Breath Assessments to track CO₂ tolerance & O₂ baseline

Respiratory Muscle & Altitude Sim Drills

Weekly Video Briefing + Exercise Demos

Downloadable Workbook & TrainingPeaks Plan