Live high, train low at natural altitude.

Area of Science:

• Sports Science
• Exercise Physiology
• Altitude Training

Background:

• Altitude training is a common practice for endurance athletes seeking to improve sea-level performance.
• The efficacy and underlying mechanisms of altitude training have been extensively investigated.

Purpose of the Study:

• To evaluate the impact of a "live high, train low" altitude training strategy on sea-level endurance performance.
• To identify the physiological mechanisms responsible for any observed performance enhancements.

Main Methods:

• Athletes lived at 2500m for 4 weeks, performing intense training sessions near sea level.
• Performance metrics, red cell mass, maximal oxygen uptake, running economy, and anaerobic markers were assessed.

Main Results:

• An average improvement of 1.5% in sea-level endurance performance (7-20 min duration) was observed, lasting at least 3 weeks post-training.
• A significant increase in red cell mass (approx. 8%) and maximal oxygen uptake (approx. 5%) was noted.
• No significant changes were found in running economy or anaerobic energy utilization markers.

Conclusions:

• The "live high, train low" altitude training approach effectively enhances sea-level endurance performance in collegiate to elite athletes.
• Increased red cell mass and improved maximal oxygen uptake are key mechanisms driving performance gains.
• While direct studies in football are lacking, enhanced maximal oxygen uptake could benefit football performance, though the 4-week time commitment is a consideration.