Defining a highly skilled ski-racer’s body individual resistance to acute hypoxia

2015 ◽  
Vol 15 (4) ◽  
pp. 19-23
Author(s):  
D Maleev
Keyword(s):  
Acute Hypoxia ◽  
Individual Resistance ◽  
Highly Skilled

Can Hyperoxic Preconditioning in Normobaric Hypoxia (3500 m) Improve All-Out Exercise Performance in Highly Skilled Skiers? A Randomized Crossover Study

2020 ◽  
Vol 15 (3) ◽  
pp. 346-353
Author(s):  
David Morawetz ◽  
Tobias Dünnwald ◽  
Martin Faulhaber ◽  
Hannes Gatterer ◽  
Lukas Höllrigl ◽  
...  
Keyword(s):  
Crossover Study ◽  
Exercise Performance ◽  
Near Infrared ◽  
Acute Hypoxia ◽  
Normobaric Hypoxia ◽  
Pure Oxygen ◽  
Adaptation To Hypoxia ◽  
Short Period ◽  
Highly Skilled ◽  
Randomized Crossover Study

Background: The altering effects of hypoxia on aerobic/anaerobic performance are well documented and form the basis of this study. Application of hyperoxic gases (inspiratory fraction of oxygen [FiO2] > 0.2095) prior to competition or training (hyperoxic preconditioning) can compensate for the negative influence of acute hypoxia. Purpose: To investigate whether oxygen supplementation immediately prior to exercise (FiO2 = 1.0) improves all-out exercise performance in normobaric hypoxia (3500 m) in highly skilled skiers. Methods: In this single-blind, randomized, crossover study, 17 subjects performed a 60-second constant-load, all-out test in a normobaric hypoxic chamber. After a short period of adaptation to hypoxia (60 min), they received either pure oxygen or chamber air for 5 minutes prior to the all-out test (hyperoxic preconditioning vs nonhyperoxic preconditioning). Capillary blood was collected 3 times, and muscle oxygenation was assessed with near-infrared spectroscopy. Results: Absolute and relative peak power (P = .073 vs P = .103) as well as mean power (P = .330 vs P = .569) did not significantly differ after the hyperoxic preconditioning phase. PaO2 increased from 51.3 (3) to 451.9 (89.0) mm Hg, and SaO2 increased from 88.2% (1.7%) to 100% (0.2%) and dropped to 83.8% (4.2%) after the all-out test. Deoxygenation (P = .700) and reoxygenation rates (P = .185) did not significantly differ for both preconditioned settings. Conclusions: Therefore, the authors conclude that hyperoxic preconditioning did not enhance 60-second all-out exercise performance in acute hypoxia (3500 m).

Desintegration of brain regulatory mechanisms under acute hypoxia

2007 ◽  
Author(s):  
S. I. Soroko ◽  
S. S. Bekshaev ◽  
V. P. Rozhkov
Keyword(s):  
Acute Hypoxia ◽  
Regulatory Mechanisms

Gendered differences in emigration and mobility perspectives among European researchers working abroad

2014 ◽  
Vol 7 (1) ◽  
pp. 33-41 ◽  
Author(s):  
Elisabeth Scheibelhofer
Keyword(s):  
United States ◽  
Qualitative Research ◽  
Qualitative Study ◽  
Social Relations ◽  
The United States ◽  
Research Strategy ◽  
The Future ◽  
Highly Skilled

This paper focuses on gendered mobilities of highly skilled researchers working abroad. It is based on an empirical qualitative study that explored the mobility aspirations of Austrian scientists who were working in the United States at the time they were interviewed. Supported by a case study, the paper demonstrates how a qualitative research strategy including graphic drawings sketched by the interviewed persons can help us gain a better understanding of the gendered importance of social relations for the future mobility aspirations of scientists working abroad.

Policy perspectives of Turkey towards return migration: From permissive indifference to selective difference

2014 ◽  
Vol 11 (2) ◽  
pp. 218-228 ◽  
Author(s):  
Özge Bilgili ◽  
Melissa Siegel
Keyword(s):  
Economic Development ◽  
Return Migration ◽  
Government Officials ◽  
Highly Skilled ◽  
Development Initiatives ◽  
Past Experiences

This is the first paper of its kind to look at policy perspectives on return migration in Turkey, based on an analysis of official documents and a series of interviews with Turkish authorities, government officials and academics. We identify several perspectives which range from the absence of a specific legislation to control return migration, to the concrete attempts to regulate the return of a selected group of migrants, namely the highly skilled. Subsequently, we show that these perspectives are built on a series of sometimes paradoxical arguments regarding economic development, past experiences about development initiatives and the country’s international objectives.

Hannibal aux aguets: On the Lookout for New Rencontres

2018 ◽  
Author(s):  
Charles J. Stivale
Keyword(s):  
Gilles Deleuze ◽  
Television Series ◽  
Commercial Television ◽  
Thomas Harris ◽  
Highly Skilled ◽  
Video Interview

In L’Abécédaire de Gilles Deleuze, a 1988-9 video interview, Deleuze discusses with Claire Parnet the crucial link between creativity, the very possibility of thinking, and animality, through the practice of “être aux aguets” (being on the lookout) for rencontres. This chapter considers how this constitutes the essential practice of the character of Hannibal Lecter, created by Thomas Harris in several novels (Red Dragon, Silence of the Lambs, Hannibal, Hannibal Rising) and, more recently, portrayed in the commercial television series “Hannibal” by Mads Mikkelsen. Hannibal is portrayed as a highly refined individual who not only can sense physically the presence of any threat through extraordinary olfactory powers, but can also categorize, store and then recall any such scents/essences through a Memory Museum. In the television series, Hannibal as highly skilled culinary artist combines the results of his being “on the lookout” with an efficient and often gruesome taste for fine dining, with strategically selected guests usually uninformed about the courses on the menu. The chapter thus considers the concepts of the animal, “être aux aguets” and “refrains” in the light of fictional production, both in print and televisual form, in order to open the Deleuzian concepts to an alternate, creative reading.

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