006 Normobaric hypoxia impairs cardiac energetics in normal human volunteers
نویسندگان
چکیده
منابع مشابه
A Four-Way Comparison of Cardiac Function with Normobaric Normoxia, Normobaric Hypoxia, Hypobaric Hypoxia and Genuine High Altitude
BACKGROUND There has been considerable debate as to whether different modalities of simulated hypoxia induce similar cardiac responses. MATERIALS AND METHODS This was a prospective observational study of 14 healthy subjects aged 22-35 years. Echocardiography was performed at rest and at 15 and 120 minutes following two hours exercise under normobaric normoxia (NN) and under similar PiO2 follo...
متن کاملInfluence of Acute Normobaric Hypoxia on Hemostasis in Volunteers with and without Acute Mountain Sickness
INTRODUCTION The aim of the present study was to investigate whether a 12-hour exposure in a normobaric hypoxic chamber would induce changes in the hemostatic system and a procoagulant state in volunteers suffering from acute mountain sickness (AMS) and healthy controls. MATERIALS AND METHODS 37 healthy participants were passively exposed to 12.6% FiO2 (simulated altitude hypoxia of 4,500 m)....
متن کاملRepeated sprint training in normobaric hypoxia
Repeated sprint ability (RSA) is a critical success factor for intermittent sport performance. Repeated sprint training has been shown to improve RSA, we hypothesised that hypoxia would augment these training adaptations. Thirty male well-trained academy rugby union and rugby league players (18.4 ± 1.5 years, 1.83 ± 0.07 m, 88.1 ± 8.9 kg) participated in this single-blind repeated sprint traini...
متن کاملGhrelin increases lymphocytes in chronic normobaric hypoxia.
PURPOSE Hypoxia is a condition of decreased availability of oxygen. To adapt hypoxia, some changes in blood cells occur in the body. The aim of this study was to evaluate the effect of ghrelin on different types of blood cell in normobaric hypoxia situation. METHODS Thirty-two animals were divided in 4 groups (n=8): control (C), ghrelin (G), hypoxia (H), and hypoxic animals that received ghre...
متن کاملPoint: Hypobaric hypoxia induces different physiological responses from normobaric hypoxia.
Hypoxia is defined as any combination of reduced barometric pressure (PB) and/or a reduced inspired fraction of oxygen (FIO2), which ultimately results in an inspired partial pressure of oxygen (PIO2) less than 150 mmHg (6). Pathophysiological responses to hypoxia or adaptations to hypoxic training can be investigated in two different types of exposure: hypobaric hypoxia (HH; FIO2 20.9%; PB 760...
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ژورنال
عنوان ژورنال: Heart
سال: 2010
ISSN: 1355-6037
DOI: 10.1136/hrt.2009.191049f