Results 261 to 270 of about 2,849,596 (321)
Effects of high altitude acclimatization on heart rate variability in resting humans
European Journal of Applied Physiology and Occupational Physiology, 1996 The sympatho-vagal nerve interaction at the heart was studied by means of power spectrum analysis of heart rate variability in seven Caucasians (aged 27-35 years) in resting supine and sitting positions before and during 35 days of a sojourn at 5050 m above sea level (asl) and in six Sherpas (aged 22-30 years) at high altitude only.
Renza Perini +3 more
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GW24-e0027 Anti-hypoxia and anti-oxidation effects of aminophylline on human with acute high-altitude exposure [PDF]
Heart, 2013 Objectives To investigate the anti-hypoxia and anti-oxidation effects of aminophylline on human with acute high-altitude exposure. Methods Totally 100 young male army members newly recruited from Sichuan province (400 metres above sea level) were enrolled.
Bo Yang, Min Li, Minghui Yang
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Effects of High Altitude on the Vascularization of Terminal Villi in Human Placentae
, 1988 The oxygen diffusing capacity of the human hemomonochorial placenta is influenced by the physical dimensions of the tissue components of the materno-fetal interhemal barrier (Laga et al., 1973; Mayhew et al., 1984). Of these tissue components, the villous membrane — comprising trophoblast, villous stroma, and fetal capillary endothelium — makes a major
Moira R. Jackson +2 more
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Effects of High Altitude on Lipid Components of Human Serum
Archives of Environmental Health: An International Journal, 1969 R Bason, Charles E. Billings
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Zhonghua lao dong wei sheng zhi ye bing za zhi = Zhonghua laodong weisheng zhiyebing zazhi = Chinese journal of industrial hygiene and occupational diseases, 2015 To explore the effects of hyperbaric oxygen preconditioning (HBOP) on human stress responses during acute exposure to high altitude and the possible mechanism.Eight male subjects were treated with HBOP for 3, 5, and 7 days, followed by acute exposure to hypoxia simulating an altitude of 4,000 m.
Yangyang Li +8 more
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Effects of High Altitude and Acetazolamide on Human Serum and Urine Purines [PDF]
Clinical Science, 1986 Piers M. Forster +3 more
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Effects of high altitude and diet on lipid components of human serum.
Federation proceedings, 1969 Whitten Bk, Janoski Ah
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PPO.20 The effect of high altitude on cell proliferation, apoptosis and fusion in the human placenta [PDF]
Archives of Disease in Childhood - Fetal and Neonatal Edition, 2014 Background High-altitude pregnancy is a natural model for the effects of chronic mild hypobaric hypoxia on placental and fetal growth. Hypoxia is an important cause of complications of pregnancy e.g. intrauterine growth restriction.1 Hypoxia increases cytotrophoblast (CTB) proliferation and apoptosis and decreases fusion in vitro.
GJ Burton +2 more
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Building and Environment, 2021
Abstract The hypoxic environment on mountain plateaus exerts a significant negative impact on human cognitive ability and physiological well-being. Although progress has been made in the study of the cognitive decline of sojourners exposed to hypoxic environments, further knowledge that establishes the proper indoor oxygen environment beneficial for ...
Huang Lei +5 more
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Abstract The hypoxic environment on mountain plateaus exerts a significant negative impact on human cognitive ability and physiological well-being. Although progress has been made in the study of the cognitive decline of sojourners exposed to hypoxic environments, further knowledge that establishes the proper indoor oxygen environment beneficial for ...
Huang Lei +5 more
openaire +2 more sources