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01-06-2005 | Original Article

Intermittent short-term graded running performance in middle-distance runners in hypobaric hypoxia

Authors: Takeshi Ogawa, Keiichi Ohba, Yoshiharu Nabekura, Jun Nagai, Keiji Hayashi, Hiroyuki Wada, Takeshi Nishiyasu

Published in: European Journal of Applied Physiology | Issue 3/2005

Abstract

This study investigated whether in trained middle-distance runners, intermittent short-term graded running performance is affected by a hypobaric hypoxic environment (simulated 2,500 m) (H). Seven male middle-distance runners performed an aerobic performance test and an intermittent short-term graded anaerobic running-performance test (MART) both in H and in a normobaric normoxic environment (N). VO_2max and OBLA were markedly lower (by 18.1% and 8.7%, respectively) in H than in N. In MART, neither maximal running velocity (V_max) nor exhaustion-time was different between N and H (454 (7) m min⁻¹ vs. 451 (6) m min⁻¹, respectively, and 208.7 (5.2) s vs. 205.7 (4.2) s, respectively). The blood lactate concentration at sub-maximal running speed (425 m min⁻¹) was significantly greater in H than in N (paired t-test: P<0.05). These results suggest that, in trained middle-distance runners, intermittent short-term graded running performance is not affected by H, despite a considerable decrease in aerobic power in H during the aerobic performance test.

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Title: Intermittent short-term graded running performance in middle-distance runners in hypobaric hypoxia
Authors: Takeshi Ogawa
Keiichi Ohba
Yoshiharu Nabekura
Jun Nagai
Keiji Hayashi
Hiroyuki Wada
Takeshi Nishiyasu
Publication date: 01-06-2005
Publisher: Springer-Verlag
Published in: European Journal of Applied Physiology / Issue 3/2005
Print ISSN: 1439-6319
Electronic ISSN: 1439-6327
DOI: https://doi.org/10.1007/s00421-005-1322-7

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Intermittent short-term graded running performance in middle-distance runners in hypobaric hypoxia

Abstract

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