P Robach, J Hansen, A Pichon, A-K Meinild Lundby, S Dandanell, G Slettaløkken Falch, D Hammarström, D H Pesta, C Siebenmann, S Keiser, P Kérivel, J E Whist, B R Rønnestad, C Lundby
Live high-train low (LHTL) using hypobaric hypoxia was previously found to improve sea-level endurance performance in well-trained individuals; however, confirmatory controlled data in athletes are lacking. Here, we test the hypothesis that natural-altitude LHTL improves aerobic performance in cross-country skiers, in conjunction with expansion of total hemoglobin mass (Hbmass , carbon monoxide rebreathing technique) promoted by accelerated erythropoiesis. Following duplicate baseline measurements at sea level over the course of 2 weeks, nineteen Norwegian cross-country skiers (three women, sixteen men, age 20 ± 2 year, maximal oxygen uptake (VO2 max) 69 ± 5 mL/min/kg) were assigned to 26 consecutive nights spent at either low (1035 m, control, n = 8) or moderate altitude (2207 m, daily exposure 16...
February 22, 2018: Scandinavian Journal of Medicine & Science in Sports