european college of sport science

17:15 - 18:45
Oral presentations
OP-TT01 Training & Testing 1
OP-TT01 Training & Testing 1
EFFECT OF HIGH-INTENSITY TRAINING IN HYPOXIA ON CYCLING PERFORMANCE AND LACTATE METABOLISM.
LECOULTRE, V., TAPPY, L., SCHNEITER, PH., SCHUTZ, Y.
UNIVERSITY OF LAUSANNE
Living and training at low altitude and adding some key training sessions in hypoxia (Live Low Train High (LLTH)) may be considered as an
effective way of using altitude as a training stimulus for endurance athletes. It has also been shown to be effective in improving glucose
tolerance in untrained individuals. However, its effects on performance are debated. Our hypothesis was that 4 weeks of LLTH would
increase more endurance performance and lactate turnover rate of well trained cyclists than the same training regimen performed in
normoxia. 14 cyclists participated to this study and replaced part of their weekly training schedule by 3 sessions performed in normobaric
hypoxia (HYP) (~3000m) or normoxia (NOR) during 4 weeks. Before and after the training period, endurance performance was assessed
during incremental tests performed in normoxia and hypoxia and a 40-km time-trial (TT) performed in normoxia. Lactate and glucose
turnover rates were measured by means of stable isotope tracer infusion. After training TT performance was similarly and significantly
improved in NOR and HYP. Maximal oxygen uptake was significantly (p