Zobrazeno 1 - 10
of 91
pro vyhledávání: '"J E, Greenleaf"'
Autor:
M. A. Selland, John T. Reeves, Gail E. Butterfield, R. G. McCullough, R. F. Grover, J. E. Greenleaf, Thomas E. Dahms, Eugene E. Wolfel
Publikováno v:
European Journal of Applied Physiology. 77:264-270
When humans ascend to high altitude (ALT) their plasma volume (PV) and total blood volume (BV) decrease during the first few days. With continued residence over several weeks, the hypoxia-induced stimulation of erythropoietin increases red cell produ
Publikováno v:
American Journal of Physiology-Regulatory, Integrative and Comparative Physiology. 268:R583-R589
The purpose was to determine whether extracellular volume or osmolality was the major contributing factor for reduction of thirst in air and head-out water immersion in hypohydrated subjects. Eight males (19-25 yr) were subjected to thermoneutral imm
Publikováno v:
Sports Medicine, Training and Rehabilitation. 5:293-310
Future spaceflight will require travelers to spend ever‐increasing periods of time in microgravity. Optimal functioning of the immune system is of paramount importance for the health and performance of these travelers. A meta‐analysis statistical
Publikováno v:
Aviation, space, and environmental medicine. 75(5)
Thermal energy is transferred within and between bodies via several avenues, but for most unprotected human cold exposures, particularly during immersion, convective heat loss dominates. Lower tissue temperatures stimulate thermoreceptors, and the re
Autor:
J, Smorawinski, C, Młynarczyk, A W, Ziemba, T, Mikulski, G, Cybulski, R, Grucza, K, Nazar, H, Kaciuba-Uscilko, J E, Greenleaf
Publikováno v:
Journal of physiology and pharmacology : an official journal of the Polish Physiological Society. 56(1)
Bed rest (BR) deconditioning causes excessive increase of exercise core body tempera-ture, while aerobic training improves exercise thermoregulation. The study was designed to determine whether 3 days of 6 degrees head-down bed rest (HDBR) affects bo
Catecholamine responses to environmental stressors in trained and untrained men after 3-day bed rest
Publikováno v:
Aviation, space, and environmental medicine. 74(9)
The effect of decreased physical activity with reduced gravitational stress on activity, sensitivity, and reactivity of the sympathetic nervous system (SNS) is not fully recognized. We hypothesized that the effect is most pronounced in physically act
Publikováno v:
Aviation, space, and environmental medicine. 73(1)
Extravehicular activity (EVA), i.e., exercise performed under unique environmental conditions, is indispensable for supporting daily living in weightlessness and for further space exploration. From 1965-1996 an average of 20 h x yr(-1) were spent per
Publikováno v:
Journal of gravitational physiology : a journal of the International Society for Gravitational Physiology. 5(1)
Restriction of physical activity causes exaggerated hyperinsulinemia and hyperglycemia following an oral glucose load. It is attributed to decreased sensitivity to insulin and decreased GLUT-4 transporter content in skeletal muscles. On the other han
Autor:
J E, Greenleaf, H, Hinghofer-Szalkay, A, Rössler, P A, Farrell, J L, Loomis, M J, Fedele, J, West
Publikováno v:
Aviation, space, and environmental medicine. 72(6)
To study hormonal factors that may account for the dissociation between beverage-induced plasma sodium p[Na+] and osmotic p[Osm] concentrations that appear to refute the high theoretical correlation between p[Na+] and p[Osm].Ten men (24 +/- SD 3 yr o
Autor:
J, Smorawiński, H, Kaciuba-Uściłko, K, Nazar, P, Kubala, E, Kamińska, A W, Ziemba, J, Adrian, J E, Greenleaf
Publikováno v:
Journal of physiology and pharmacology : an official journal of the Polish Physiological Society. 51(2)
The study was designed to find out (1) whether the effect of 3-day bed rest on blood glucose (BG) and plasma insulin (IRI) responses to glucose ingestion depends on preceding physical activity and (2) whether plasma adrenaline (A), noradrenaline (NA)