Altitude Training for Runners – Does It Really Work?

For decades, elite runners have flocked to mountain towns like Iten in Kenya, St. Moritz in Switzerland, Flagstaff in the United States, Lesotho and Dullstroom in Southern Africa, to chase the so-called "magic" of altitude training. The belief is simple: by living and training at high altitude, the body adapts in ways that improve oxygen delivery, making you faster and stronger when you return to sea level.

How Altitude Training Works

At altitudes above 1,800 metres, the air is thinner, meaning there is less oxygen available with every breath. The body responds by producing more red blood cells and boosting haemoglobin levels, allowing more oxygen to be carried to the muscles. Over time, this adaptation can improve endurance and delay fatigue.

The "live high, train low" model has become the gold standard: athletes spend their recovery time at altitude to stimulate red blood cell production, but do their hardest training sessions at lower altitudes where they can maintain intensity.

The Challenges of Altitude Training

• Individual response: Not every runner adapts the same way. Some athletes see big gains, while others experience little improvement.
• Reduced training quality: Training too high can compromise workout intensity, leaving runners tired and underperforming.
• Time commitment: Physiological adaptations take at least 3–4 weeks at altitude, which isn't feasible for most recreational runners.
• Logistics and cost: Living in a mountain town or flying to a training camp is simply not realistic for many athletes.

Alternatives to Altitude Training

1. Hypoxic Tents and Altitude Rooms

Specialised altitude chambers and sleeping tents simulate lower oxygen availability. While not identical to real altitude, they can stimulate red blood cell production.

2. Heat Training

Running in hot and humid environments places stress on the cardiovascular system. Training in the heat increases plasma volume, improving thermoregulation and oxygen delivery — adaptations similar to those seen at altitude.

3. Strength and Plyometric Training

Altitude boosts efficiency by improving oxygen delivery, but another path to better running economy is mechanical. Strength training, hill sprints, and plyometric drills improve muscle recruitment, resilience, and stride efficiency.

4. Interval Training (VO₂ Max Workouts)

High-intensity intervals push the body to use oxygen more efficiently, essentially training your system to function as if you had more red blood cells.

5. Consistency and Recovery

Perhaps the biggest "altitude hack" is simply sticking to a well-structured training plan. Even the Kenyans' advantage comes not only from altitude, but from years of consistent, structured training.