Controlled altitude training study with 60 competitive marathoners comparing live-high train-low versus sea level training over 4-week period. Altitude group (sleep at 2,500m, train at 1,200m) showed significant improvements in hemoglobin concentration, VO2max, and subsequent marathon performance. Benefits persisted for 3-4 weeks post-altitude, making timing crucial for competition scheduling.
Tag: oxygen
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Altitude Effects in High-Altitude Ultra-Marathons
Performance analysis in high-altitude ultra-marathons comparing sea-level versus altitude-adapted athletes. Oxygen saturation monitoring revealed significant desaturation during climbs above 3,000m. Pre-arrival acclimatization (7+ days) improved performance and reduced altitude sickness incidence. Iron supplementation and enhanced carbohydrate intake proved beneficial for altitude ultra-marathon performance in susceptible individuals.