Key Takeaway
The landmark study establishing "Live High, Train Low" as the gold standard for altitude training - showed 3% improvement in 5K time after 4 weeks of LHTL
Summary
This foundational study compared three groups of collegiate runners: live high-train high (LHTH), live high-train low (LHTL), and live low-train low (LLTH). The LHTL group lived at 2,500m but trained at 1,250m.
Methods
- 39 competitive distance runners
- 4-week altitude camp
- Three groups: LHTH, LHTL, and control (LLTL)
- Pre and post 5,000m time trials at sea level
- Blood measurements (EPO, hemoglobin, red cell mass)
Key Results
- LHTL group improved 5K time by ~3% (vs 1% in other groups)
- EPO increased ~2x in first 24 hours at altitude
- Red cell mass increased ~5% in LHTL group
- VO2max increased ~5% in LHTL group
- Benefits maintained for 2-3 weeks post-altitude
Limitations
- Relatively small sample size
- Young, healthy athletes only
- Single study location
- Individual variation was significant