Individual hemoglobin mass response to normobaric and hypobaric “live high–train low”: A one-year crossover study

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dc.contributorResearch in Physical Education, Fitness and Performance (RIPEFAP)es_ES
dc.contributor.authorHauser, Anna-
dc.contributor.authorTroesch, Severin-
dc.contributor.authorSaugy, Jonas J.-
dc.contributor.authorSchmitt, Laurent-
dc.contributor.authorCejuela Anta, Roberto-
dc.contributor.authorFaiss, Raphael-
dc.contributor.authorSteiner, Thomas-
dc.contributor.authorRobinson, Neil-
dc.contributor.authorMillet, Grégoire P.-
dc.contributor.authorWehrlin, Jon P.-
dc.contributor.otherUniversidad de Alicante. Departamento de Didáctica General y Didácticas Específicases_ES
dc.identifier.citationJournal of Applied Physiology. 2017, 123(2): 387-393. doi:10.1152/japplphysiol.00932.2016es_ES
dc.identifier.issn8750-7587 (Print)-
dc.identifier.issn1522-1601 (Online)-
dc.description.abstractThe purpose of this research was to compare individual hemoglobin mass (Hbmass) changes following a live high-train low (LHTL) altitude training camp under either normobaric hypoxia (NH) or hypobaric hypoxia (HH) conditions in endurance athletes. In a crossover design with a one-year washout, 15 male triathletes randomly performed two 18-day LHTL training camps in either HH or NH. All athletes slept at 2,250 meters and trained at altitudes <1,200 meters. Hbmass was measured in duplicate with the optimized carbon monoxide rebreathing method before (pre) and immediately after (post) each 18-day training camp. Hbmass increased similarly in HH (916–957 g, 4.5 ± 2.2%, P < 0.001) and in NH (918–953 g, 3.8 ± 2.6%, P < 0.001). Hbmass changes did not differ between HH and NH (P = 0.42). There was substantial interindividual variability among subjects to both interventions (i.e., individual responsiveness or the individual variation in the response to an intervention free of technical noise): 0.9% in HH and 1.7% in NH. However, a correlation between intraindividual ΔHbmass changes (%) in HH and in NH (r = 0.52, P = 0.048) was observed. HH and NH evoked similar mean Hbmass increases following LHTL. Among the mean Hbmass changes, there was a notable variation in individual Hbmass response that tended to be reproducible.es_ES
dc.description.sponsorshipThis study was financially supported by the Federal Office of Sport (Switzerland) and by the Ministère des Sports, de la Jeunesse, de l’Education Populaire et de la Vie Associative/Institut National du Sport, de l’Expertise et de la Performance (France).es_ES
dc.publisherAmerican Physiological Societyes_ES
dc.rights© 2017 the American Physiological Societyes_ES
dc.subjectLive high-train lowes_ES
dc.subjectHemoglobin masses_ES
dc.subject.otherEducación Física y Deportivaes_ES
dc.titleIndividual hemoglobin mass response to normobaric and hypobaric “live high–train low”: A one-year crossover studyes_ES
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