PMID: 11606019Oct 19, 2001Paper

Endurance training under 2500-m hypoxia does not increase myoglobin content in human skeletal muscle

European Journal of Applied Physiology
K MasudaS Katsuta

Abstract

The present study was carried out to determine whether myoglobin (Mb) concentration ([Mb]) in human skeletal muscle is influenced by 8 weeks of endurance training under normal conditions, and under hypoxic conditions equivalent to an altitude of 2500 m. Fourteen healthy but sedentary male adults who did not participate in any regular exercise program took part in this study. They were divided into two groups according to the training regime to which they were submitted: the N group, who exercised under normobaric conditions, and the H group, who exercised under hypobaric conditions. All subjects performed an incremental cycling exercise at sea level to evaluate their maximal O2 uptake (VO2max) before and after the 8-week endurance training course period. Muscle tissue samples were obtained by needle biopsy from the vastus lateralis muscle for histochemical and biochemical analysis. Training induced an increase in VO2max in both the N and H groups (P < 0.05), although there was no significant difference in these changes between groups. The 8-week training had no effect on [Mb] in either group. Muscle fiber composition was also unaffected by the training course. In contrast, citrate synthase activity in both groups increased by [...Continue Reading

Citations

Jun 3, 2008·European Journal of Applied Physiology·Kazumi MasudaThomas Jue
Dec 13, 2005·Ergonomics·James Peter Morton, Nigel Tim Cable
Aug 3, 2010·The Journal of Experimental Biology·Gerolf GrosThomas Jue
Jul 6, 2014·European Journal of Applied Physiology·Guido Ferretti
Jun 13, 2009·High Altitude Medicine & Biology·Martin Flueck
Sep 17, 2009·Cellular and Molecular Life Sciences : CMLS·Carsten LundbyPaul Robach
Apr 27, 2010·Progress in Cardiovascular Diseases·Michael Vogt, Hans Hoppeler
Apr 9, 2010·Comparative Biochemistry and Physiology. Part D, Genomics & Proteomics·Freek G BouwmanEric van Breda
Sep 9, 2008·Scandinavian Journal of Medicine & Science in Sports·H HoppelerM Vogt
Jun 12, 2016·Sports Medicine·David Montero, Carsten Lundby
Sep 30, 2016·Medicine and Science in Sports and Exercise·Thomas MorvilleJørn Wulff Helge
Mar 29, 2014·Medicine and Science in Sports and Exercise·Paul RobachCarsten Lundby
Jun 27, 2017·Scandinavian Journal of Medicine & Science in Sports·C BrinkmannK Brixius
Jan 23, 2016·The Journal of Experimental Biology·Hans Hoppeler
Feb 12, 2005·American Journal of Physiology. Heart and Circulatory Physiology·P G Carlier, D Bertoldi
Nov 6, 2004·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Ronald A Meyer
Nov 6, 2004·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·S DuteilP G Carlier
May 23, 2020·The Journal of Sports Medicine and Physical Fitness·Alicja WiśniewskaMiłosz Czuba
May 12, 2009·American Journal of Physiology. Heart and Circulatory Physiology·R C I WüstH Degens
Jun 18, 2017·Frontiers in Physiology·Stefan De SmetPeter Hespel

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