hypobaric


Also found in: Dictionary, Medical, Wikipedia.

hypobaric

[¦hī·pō¦bar·ik]
(medicine)
Pertaining to an anesthetic solution of specific gravity lower than the cerebrospinal fluid.
(physics)
Having less weight or pressure.
References in periodicals archive ?
[OMEGA]3 Supplementation and intermittent hypobaric hypoxia induce cardioprotection enhancing antioxidant mechanisms in adult rats.
However, atmospheric pressure is also relevant, as differences between reactions to normobaric and hypobaric hypoxia have been demonstrated [4-7].
The dataset profiled the lungs of adult male Sprague-Dawley rats kept for 4 weeks in normal atmospheric conditions or in hypobaric hypoxia (380 mmHg), or injected with 40 mg/kg MCT.
Mice were exposed to hypobaric hypoxia (0.5 atmospheres in room air equivalent to 10% v/v oxygen) for approximately 4 weeks; normoxia controls were left in ordinary room air [19].
Withanolide-enriched extract from the Withania somnifera root (methanol-water 25:75, v/v) was evaluated on induced hypobaric hypoxia in rats.
The adaptation of the cardiovascular system to hypobaric hypoxia is an important entity in all high altitude studies.
The climbers have trained in specialized rooms called hypobaric chambers, which allow trainers to manipulate air pressure and to prepare climbers' bodies for the high-altitude, low-oxygen environment of the mountain.
Recently, various living low training high (LLTH) methods such as intermittent hypoxic training (IHT), repeated sprint training in hypoxia (RSH), and resistance training in hypoxia (RTH) has become an increasingly popular altitude/hypoxic practice, where athletes live at or near sea-level but train at 2,000 to 4,500 m simulated hypobaric or normobaric hypoxic conditions (Faiss et al., 2013a; Girard et al., 2017; Hamlin et al., 2010).
As reported in some studies, the expression of HIF-1a varied distinctly in different hypoxic conditions, such as sustained hypoxia and intermittent hypoxia.[sup][28] In fact, both fatigability and HIF-1a level were different in skeletal muscle in short-term and prolonged intermittent hypoxia.[sup][29],[30] Vigano et al .[sup][31] reported that HIF-1a in human skeletal muscle was at the prehypoxia levels after exposure to hypobaric hypoxia for 7–9 days, despite that proteins involved in TCA cycle, oxidative phosphorylation, and oxidative stress responses were significantly decreased.