Central European Journal of Sport Sciences and Medicine


ISSN: 2300-9705     eISSN: 2353-2807    OAI    DOI: 10.18276/cej.2024.2-09
CC BY-SA   Open Access   DOAJ  DOAJ

Lista wydań / Vol. 46, No. 2/2024
Influence of Live High Train High on Physiological Training Adaptations and Athletic Performance in Trained Runners: An Observational Cohort Case Study

Autorzy: Surojit Sarkar ORCID
Human performance laboratory, Dept. of Physiology, Sports Authority of India, Netaji Subhas Regional Center, Sarojini Nagar, Lucknow-226008, Uttar Pradesh, India

Sreejita Dutta
Human performance laboratory, Dept. of Physiology, Sports Authority of India, Netaji Subhas Regional Center, Sarojini Nagar, Lucknow-226008, Uttar Pradesh, India

Subhra Chatterjee ORCID
Human performance laboratory, Dept. of Physiology, Sports Authority of India, National Centre of Sports Science and Research, Indira Gandhi Stadium Complex, New Delhi-110001, India

Kamlesh Tiwana
Sports Authority of India, Netaji Subhas Regional Center, Sarojini Nagar, Lucknow-226008, Uttar Pradesh, India

Sanjay Saraswat
Sports Authority of India, Netaji Subhas Regional Center, Sarojini Nagar, Lucknow-226008, Uttar Pradesh, India
Słowa kluczowe: Live high-train high erythropoiesis endurance performance running performance iron metabolism lung functioning
Data publikacji całości:2024
Liczba stron:13 (103-115)
Cited-by (Crossref) ?:

Abstrakt

Introduction: Live high-train high (LHTH) is suggested to improve performance, especially maximal aerobic capacity through the hypoxic adaptation responses. The present study aims to determine the impact of LHTH protocol on cardio-respiratory variables, lactate response, iron profile indices, and lung function capacities to the performance enhancement of middle-long distance (MLD) runners. Methods: Seven MLD runners were trained LHTH for six weeks at 8000ft altitude. Cardio-respiratory variables (V̇O2max, VO2/HR, VEmax, HR response), lactate response, iron profile indices (Hb, iron, UIBC, TIBC, transferrin, EPO, ferritin), and lung function parameters (FVC, FEV1, FEV1/FVC, PEF, and VC) were measured via standard protocols. Result: Hemoglobin (Hb, 7.8%), iron concentration (36.7%), and TIBC (8.2%) were found to be significantly increased after LHTH. On the other hand, V̇O2max (6.4%) and PEF (10.7%) were found to be significantly (p < 0.05) increased after camp. But HRrest (1.8%), HRrec (5min and 10min with 2.3% and 4.7% respectively), and lactate peak (7.9%) significantly decreased after LHTH condition. Discussion: All participating athletes improved performances after LHTH (overall group improved by 1.7%, individual increase up to 2.6%). Specific training load with hypoxic stress at high altitude induces peripheral chemoreceptor activation and stimulates sympathetic drive to initiate adaptive cascade leading to V̇O2max improvement (improved group mean 6.4%, individually up to 16.7%) which might be supported by enhanced erythropoiesis, iron metabolism, Hb concentrations, peak expiratory flow, glycolytic enzyme activity, enhanced oxidative capacity, improved resting and recovery HR response and peak lactate tolerance.
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