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Leptin responses to physical inactivity induced by simulated weightlessness
American Journal of Physiology-Regulatory, Integrative and Comparative Physiology, 2000Physical inactivity induced by head-down bed rest (HDBR) affects body composition (BC). Leptin is involved in BC regulation by acting on fuel homeostasis. We investigated whether leptin and counterregulatory hormone levels are affected by a 7-day HDBR. Fasting blood was sampled daily (0700) in males ( n = 8) and on alternating days in females ( n = 8)
Claude Gharib +4 more
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Orthostatic tests after a 4‐day confinement or simulated weightlessness
Clinical Physiology, 1997Besides microgravity, inactivity is likely to play a role in the cardiovascular deconditioning after space flights and weightlessness simulations. The aim of the study was to compare the effects of a 4‐day head‐down bed rest (HDBR) (−68) and a 4‐day confinement (C) on cardiovascular responses to orthostatic stress. Eight male subjects underwent head‐up
Antonio Güell +6 more
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Postural reactions of circulation and its regulation during simulated weightlessness
Acta Astronautica, 1994The extention and intensification of space exploration the influence of weightlessness on human organism and the formation of a new level of adaptation. The studies of blood circulation is very important because of frequent occurrence of cardiovascular disorders in the middle age subjects.
V.A. Gornago +3 more
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Brain Norepinephrine Changes With Simulated Weightlessness and Relation to Exercise Training
Physiology & Behavior, 1999Maintenance of nervous system function during periods of a deconditioning syndrome is important to prevent diminished psychological/behavioral, and physiological function observed during periods of bed rest, physical inactivity, and weightlessness. A main neurotransmitter is norepinephrine (NE), and its regulation yields insight into nervous system ...
Gary M. Kastello, Mark S. Sothmann
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Changes in vitamin a status following prolonged immobilization (simulated weightlessness)
Life Sciences, 1992A study was conducted to investigate the effects of a simulated weightlessness induced by chronic immobilization on vitamin A status. To simulate the stress condition of weightlessness, rats were suspended for 10 days in a special jacket to which metal chains were attached. Animals received a commercial stock diet.
Toshinao Goda +3 more
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The Simulation of Weightlessness Using Water Immersion Techniques: An Annotated Bibliography
, 1969 John H. Duddy
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WEIGHTLESSNESS SIMULATION USING WATER IMMERSION TECHNIQUES: AN ANNOTATED BIBLIOGRAPHY
, 1965 Helen M. Abbott, John H. Duddy
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AN UPPER ARM MODEL FOR SIMULATING WEIGHTLESSNESS
Medicine & Science in Sports & Exercise, 1999W. J. Fink +5 more
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Effect of weightlessness simulation on femoral vein ultrastructure of rabbits
, 2002 Chunmei Wang
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