Altitude and Football — What Happens When You Play at Height

Introduction

Bolivia’s national stadium in La Paz sits at 3,637 metres above sea level. When visiting teams arrive for World Cup qualifiers, they immediately notice something is wrong: every sprint feels harder, breathing is laboured, and fatigue sets in far earlier than usual. The home side, acclimatised to the thin air, rarely notices. Altitude is one of the most powerful environmental stressors in football — and for teams travelling to high-altitude venues, or using altitude training camps, understanding the underlying physiology is not optional.

The Science

Altitude affects performance through a single fundamental mechanism: reduced atmospheric oxygen pressure (hypoxia). At sea level, air is approximately 21% oxygen at standard atmospheric pressure. At altitude, the oxygen fraction remains 21%, but the total atmospheric pressure is lower — meaning each breath delivers fewer oxygen molecules.

At 3,600 metres (La Paz), atmospheric oxygen pressure is roughly 63% of sea level — meaning players are breathing air with the effective oxygen content of about 13% at sea level. The aerobic system, which depends on oxygen delivery to produce ATP, is immediately compromised.

Acute physiological responses to altitude (0–72 hours):

• Hyperventilation — breathing rate increases to compensate for lower oxygen per breath
• Elevated heart rate at the same absolute exercise intensity
• Reduced stroke volume (plasma volume drops as the body responds to reduced oxygen)
• VO2max drops immediately: roughly 1% per 100 metres above 1,500 metres
• At La Paz, visiting teams experience ~22% reduction in aerobic power

Acclimatisation responses (days to weeks):

• Erythropoiesis — the body increases red blood cell production via EPO (erythropoietin) stimulation
• Increased haemoglobin concentration — more oxygen-carrying capacity per litre of blood
• Reduced alkalosis — the body re-equilibrates blood pH after initial hyperventilation
• Full acclimatisation to La Paz altitude takes 3–4 weeks

The altitude training advantage: Elite clubs and national teams use altitude camps (typically 1,800–2,500 m) for 3–4 weeks to drive erythropoiesis. Upon returning to sea level, elevated haemoglobin concentration persists for 3–5 weeks, improving oxygen delivery and aerobic capacity by 2–4%. This is the legal, evidence-based version of what EPO doping achieves pharmacologically.

What Research Says

Levine and Stray-Gundersen (1997) established the “Live High, Train Low” (LHLTL) model in a landmark study in the Journal of Applied Physiology, showing that sleeping at altitude (2,500 m) while training at sea level (1,250 m) produced the greatest haemoglobin mass increases and sea-level performance improvements. The model became the standard for elite altitude training camps.

Garvican-Lewis et al. (2016) specifically quantified haemoglobin mass increases in football players following 3-week altitude camps at 2,000–2,700 m, finding 3–5% increases that persisted for 3–4 weeks post-camp. These improvements translated into measurable improvements in Yo-Yo IR2 test performance.

Gore et al. (2013) reviewed the evidence for altitude training in team sports in British Journal of Sports Medicine, confirming that the optimal altitude window is 2,000–3,000 m for training camps, with lower altitudes producing insufficient stimulus and higher altitudes impairing training quality too severely.

Did You Know? In the 2018 World Cup qualifier campaign, Argentina lost to Bolivia 2–0 in La Paz with the visiting side visibly struggling in the thin air (Lionel Messi was suspended and absent). In the same qualifying campaign, Chile flew to La Paz after a match at sea level — arriving with no acclimatisation time — and lost 1–0. Teams that arrive 72 hours before the match perform slightly better than those who arrive the day before, but neither compares to home teams who live at altitude year-round. The physiological home advantage in La Paz is among the largest venue-specific advantages in world football.

Applied to Football

Managing altitude for both visits and training:

1. Arrive as early as possible before high-altitude away matches. The initial 24–48 hours are the worst physiologically (acute altitude sickness risk, maximum performance impairment). Arriving 5+ days before allows partial acclimatisation.
2. Or arrive within 12 hours. Counter-intuitively, playing within 12 hours of arrival (before the acute physiological disruption fully develops) can be preferable to arriving 24–48 hours before. Teams must choose one strategy; the 24–48 hour window is the worst.
3. Altitude training camps at 2,000–2,500 m for 3–4 weeks before major tournaments. The haemoglobin mass increases persist for 3–5 weeks post-camp — plan the timing so the benefit peaks at tournament start.
4. Hydration is critical at altitude. Hyperventilation increases respiratory water loss significantly. Daily fluid intake should increase by 0.5–1 litre at altitudes above 2,000 m.
5. Reduce training intensity for the first 3–5 days. Attempting to train at sea-level intensity upon arrival guarantees overreaching and poor adaptation. Allow 3–5 days of reduced load before building back.

Key Takeaways

• Altitude reduces atmospheric oxygen pressure, impairing aerobic performance by ~1% per 100m above 1,500m
• At La Paz (3,600m), visiting teams experience ~22% reduction in aerobic power
• Full acclimatisation takes 3–4 weeks; the first 24–72 hours are the most acutely impaired
• Altitude training at 2,000–2,500m drives red blood cell production, improving sea-level aerobic capacity
• The Live High, Train Low model is the evidence-based standard for altitude performance camps

References

• Levine, B. D., & Stray-Gundersen, J. (1997). “Living high-training low”: effect of moderate-altitude acclimatization with low-altitude training on performance. Journal of Applied Physiology, 83(1), 102–112.
• Garvican-Lewis, L. A., Sharpe, K., & Gore, C. J. (2016). Time for a new metric for hypoxic dose? Journal of Applied Physiology, 121(1), 352–355.
• Gore, C. J., Sharpe, K., Garvican-Lewis, L. A., Gough, C. E., Kingsford, A., Ross, M. L., … & Schmidt, W. (2013). Altitude training and haemoglobin mass from the optimised carbon monoxide rebreathing method. British Journal of Sports Medicine, 47(Suppl 1), i31–i39.

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Written by Hüseyin Akbulut, MSc Sport Scientist · Founder of Sporeus

Hüseyin Akbulut is the founder of Sporeus and author of THRESHOLD (EŞİK), a 540-page Turkish-language book on endurance science.

• 540pp THRESHOLD Book
• MSc Sport Sciences
• Marmara University

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