Results 181 to 190 of about 876,542 (214)

Exercise against lower body negative pressure as a countermeasure for cardiovascular and musculoskeletal deconditioning

Acta Astronautica, 1994
Exposure to lower body negative pressure (LBNP) with oral salt and water ingestion has been tested by astronauts as a countermeasure to prevent postflight orthostatic intolerance. Exercise is another countermeasure that astronauts commonly use during spaceflight to maintain musculoskeletal strength.
G, Murthy, D E, Watenpaugh, R E, Ballard, A R, Hargens   +3 more
openaire   +2 more sources

[Cardiovascular deconditioning syndrome during space flight].

Annales de cardiologie et d'angeiologie, 1990
Weightlessness results, in Man, in a redistribution of organic fluids from the lower half of the body to the thoraco-cephalic areas. This fluid transfer is responsible, in the course of the flight, for a series of subjective and objective disorders which the astronauts will experience.
A, Güell, L, Braak
openaire   +1 more source

Severe obesity associated with cardiovascular deconditioning, high prevalence of cardiovascular risk factors, diabetes mellitus/hyperinsulinemia, and respiratory compromise

The Journal of Pediatrics, 2004
To determine the extent and severity of obesity-related cardiorespiratory morbidity in children with body mass index (BMI) >or=40 kg/m(2).Cross-sectional analysis of a cohort comprised of 48 boys and girls aged 8 to 17 years with BMI >or=40 kg/m(2). Cardiorespiratory fitness (graded cycle exercise test), left ventricular (LV) mass (echocardiography ...
Samuel S, Gidding, Rodrigo, Nehgme, Charles, Heise, Carol, Muscar, Annie, Linton, Sandra, Hassink   +5 more
openaire   +2 more sources

[Microgravity-induced cardiovascular deconditioning: mechanisms and countermeasures].

Zhongguo ying yong sheng li xue za zhi = Zhongguo yingyong shenglixue zazhi = Chinese journal of applied physiology, 2015
It has been demonstrated that individuals exposed to actual or simulated microgravity often experience cardiovascular dysfunctions when returning to Earth. The underlying mechanisms of orthostatic intolerance and countermeasure treatment are still poorly understood.
openaire   +1 more source

Cardiovascular deconditioning and venous air embolism in simulated microgravity in the rat.

Aviation, space, and environmental medicine, 1997
Astronauts conducting extravehicular activities undergo decompression to a lower ambient pressure, potentially resulting in gas bubble formation within the tissues and venous circulation. Additionally, exposure to microgravity produces fluid shifts within the body leading to cardiovascular deconditioning.
R R, Robinson, M F, Doursout, J E, Chelly, M R, Powell, T M, Little, B D, Butler   +5 more
openaire   +1 more source

Cardiovascular deconditioning effects of long-term simulated weightlessness in rats.

The Physiologist, 1996
The aim of our serial work was to investigate the cardiovascular deconditioning effect of long-term simulated weightlessness and to elucidate its mechanisms. Our research goal was established in view of the following three reasons. Firstly, even after several decades of extensive research, there still exist significant gaps in our knowledge ...
L F, Zhang, J E, Chen, Z P, Ding, J, Ma
openaire   +1 more source

CARDIOVASCULAR ADAPTATIONS TO DECONDITIONING

Medicine & Science in Sports & Exercise, 2001
Benjamin D Levine, T X Dallas, Michael D Delp   +2 more
openaire   +1 more source

Visceral predictors of cardiovascular deconditioning in late middle-aged men.

Aviation, space, and environmental medicine, 1985
A major task for space biologists is to try to delineate methods which can be used to predict the degree of cardiovascular deconditioning that given individuals might develop while in space. Toward that end, we have studied a number of different visceral and behavioral variables in a group of late middle-aged men (55-65 years) on day 1 and day 5 of a ...
B H, Natelson, D J, Goldwater, C, De Roshia, B E, Levin   +3 more
openaire   +1 more source

Cardiovascular deconditioning: role of blood volume and sympathetic neurohormones.

Life sciences and space research, 2002
Studies of prolonged bed rest and water immersion have amply demonstrated that serious deconditioning of certain gravity-oriented biologic systems occurs with extended exposures to environments in which the necessity for gravity compensation has been reduced. The precise physiologic mechanisms responsible for the loss of orthostatic tolerance following
openaire   +1 more source

Cardiovascular Disorders and Epigenetics

Medical Epigenetics, 2021
Charbel Abi Khalil
exaly