Effect of normobaric hypoxia on cardiorespiratory and metabolic risk markers in healthy subjects - Advances in Bioscience and Biotechnology

ABB > Vol.4 No.3, March 2013

Effect of normobaric hypoxia on cardiorespiratory and metabolic risk markers in healthy subjects ()

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Download as PDF (Size: 222KB) PP. 340-345

DOI: 10.4236/abb.2013.43044 4,096 Downloads 6,692 Views Citations

Author(s)

Bateer Shi, Tsuneo Watanabe, Sohee Shin, Tamotsu Yabumoto, Toshio Matsuoka

Affiliation(s)

Department of Sports Medicine and Sports Science, Gifu University Graduate School of Medicine, Gifu, Japan.

ABSTRACT

The aims of this study were to investigate the influence of hypoxic physical exercise on metabolic risk markers and to compare the effects on maximum oxygen uptake (VO_2max), arterial stiffness, and several blood parameters to a control group training under normoxic conditions. Eight healthy men were examined. Each participant performed exercise at a heart rate (HR) corresponding to 60% of the HR at VO_2max on a treadmill device for 50 min (including 5 min warm-up and 5 min cool-down) after 30 min rest, on 3 days per week, for 4 weeks, in either normobaric hypoxia or normobaric normoxia. Each participant performed the exercise program under both environmental conditions with a wash-out period of 4 months. Brachial ankle pulse wave velocity after training was significantly lower in the hypoxic group than in the normoxic group (P = 0.02). The VO_2max in the hypoxic group was significantly higher after than before training (P = 0.04). Our results suggest that hypoxic training may more effectively reduce arterial stiffness and improve cardiorespiratory function compared with training performed at the same relative exercise intensity under normoxic conditions.

KEYWORDS

Metabolic Syndrome; Maximum Oxygen Uptake; Hypoxic Training; Arterial Stiffness

Share and Cite:

Shi, B. , Watanabe, T. , Shin, S. , Yabumoto, T. and Matsuoka, T. (2013) Effect of normobaric hypoxia on cardiorespiratory and metabolic risk markers in healthy subjects. Advances in Bioscience and Biotechnology, 4, 340-345. doi: 10.4236/abb.2013.43044.

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