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Predicting an Athlete’s Physiological and Haematological Response to Live High-Train High Altitude Training Using a Hypoxic Sensitivity Test

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Journal of Science in Sport and Exercise 2022年第4期4卷 371-385页

作者： Gareth Turner Kate L.Spilsbury David J.Green Barry W.Fudge Jamie S.M.Pringle Alan J.Richardson Neil S.Maxwell Environmental Extreme Laboratory University of BrightonEastbourneUK English Institute of Sport Bisham AbbeyUK Queensland Academy of Sport BrisbaneAustralia English Institute of Sport LoughboroughUK Aspire Academy DohaQatar University of Birmingham BirminghamUK

Purpose Elite endurance runners frequently utilise live high-train high(LHTH)altitude training to improve endurance per-formance at sea level(SL).Individual variability in response to the hypoxic exposure have resulted in contradictory *** the present case study,changes in total haemoglobin mass(tHbmass)and physiological capacity,in response to 4-weeks of LHTH were *** tested if a hypoxic sensitivity test(HST)could predict altitude-induced adaptations to *** Fifteen elite athletes were selected to complete 4-weeks of LHTH(~2400 m).Athletes visited the laboratory for preliminary testing(PRE),to determine lactate threshold(LT),lactate turn point(LTP),maximal oxygen uptake VO_(2max)and *** LHTH,athletes completed daily physiological measures[arterial oxygen saturation(SpO2)and body mass]and subjective wellbeing *** was repeated,for those who completed the full camp,post-LHTH(POST).Additionally,athletes completed the HST prior to *** A difference(Pmass(1.8%±3.4%),VO_(2max)(2.7%±3.4%),LT(6.1%±4.6%)and LTP(5.4%±3.8%),after 4-weeks *** revealed a decrease in oxygen saturation at rest(ΔSp_(r))and higher hypoxic ventilatory response at rest(HVRr)predicted individual changes *** hypoxic cardiac response at rest(HCRr)and higher HVRr predicted individual changes VO_(2max).Conclusion Four weeks of LHTH at~2400 m increased tHbmass and enhanced physiological capacity in elite endurance *** was no observed relationship between these changes and baseline characteristics,pre-LHTH serum ferritin levels,or reported incidents of musculoskeletal injury or *** HST did however,estimate changes in tHbmass and VO_(2max).HST prior to LHTH could allow coaches and practitioners to better inform the acclimatisation strategies and train-ing load application of endurance runners at altitude.

关键词： Altitude training Runners Endurance haemoglobin mass Performance Hypoxic sensitivity

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