The popular stimulant blocks adenosine receptors, and is the most likely mechanism of central nervous actions that delay exercise-related fatigue, a new study finds
Consuming caffeine, whether in coffee of soft drinks, has been shown to delay fatigue during prolonged exercise. Studies have shown, for example, that ingesting three to nine mg/kg of caffeine can increase the amount of exercise time to achieve by as much as 50 percent. How caffeine achieves this effect has not been fully determined.
A New Study
These results indicate that caffeine can act specifically within the CNS to delay fatigue, at least in part by blocking adenosine receptors. Because caffeine easily crosses the BBB, these results also suggest that the CNS also plays an important role in the ergogenic effect of caffeine ingestion.
The precise independent contribution of caffeine at the central (behavioral) and peripheral (metabolic) levels awaits further research. The researchers argue that some interaction at both levels is likely.
Source: February 2003 edition of the American Journal of Physiology— Regulatory, Integrative and Comparative Physiology
The American Physiological Society (APS) was founded in 1887 to foster basic and applied science, much of it relating to human health. The Bethesda, MD-based Society has more than 10,000 members and publishes 3,800 articles in its 14 peer-reviewed journals every year.
Donna Krupa | APS
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Satellites in near-Earth orbit are at risk due to the steady increase in space debris. But their mission in the areas of telecommunications, navigation or weather forecasts is essential for society. Fraunhofer FHR therefore develops radar-based systems which allow the detection, tracking and cataloging of even the smallest particles of debris. Satellite operators who have access to our data are in a better position to plan evasive maneuvers and prevent destructive collisions. From April, 25-29 2018, Fraunhofer FHR and its partners will exhibit the complementary radar systems TIRA and GESTRA as well as the latest radar techniques for space observation across three stands at the ILA Berlin.
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Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP, provider of research and development services for OLED lighting solutions, announces the founding of the “OLED Licht Forum” and presents latest OLED design and lighting solutions during light+building, from March 18th – 23rd, 2018 in Frankfurt a.M./Germany, at booth no. F91 in Hall 4.0.
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