We compared changes in performance and total haemoglobin mass (tHb) of elite swimmers in the weeks following either Classic or Live High:Train Low (LHTL) altitude training. Twenty-six elite swimmers (15 male, 11 female, 21.4 Â± 2.7 years; mean Â± SD) were divided into two groups for 3 weeks of either Classic or LHTL altitude training. Swimming performances over 100 or 200 m were assessed before altitude, then 1, 7, 14 and 28 days after returning to sea-level.
Gough, C., SAUNDERS, P., Fowlie, J., Savage, B., PYNE, D., Anson, J., ... Gore, C. (2012). Influence of altitude training modality on performance and total haemoglobin mass in elite swimmers. European Journal of Applied Physiology, 112(9), 3275-3285. https://doi.org/10.1007/S00421-011-2291-7