نتایج جستجو برای: altitude effects

تعداد نتایج: 1562792  

2013
Sarah Eisen Louise Pealing Robert W. Aldridge Mark J. Siedner Alejandro Necochea Inna Leybell Teresa Valencia Beatriz Herrera Siouxsie Wiles Jon S. Friedland Robert H. Gilman Carlton A. Evans

BACKGROUND Tuberculosis infection, disease and mortality are all less common at high than low altitude and ascent to high altitude was historically recommended for treatment. The immunological and mycobacterial mechanisms underlying the association between altitude and tuberculosis are unclear. We studied the effects of altitude on mycobacteria and antimycobacterial immunity. METHODS Antimyco...

Journal: :Clinical science 1998
L Bernardi C Passino G Spadacini A Calciati R Robergs R Greene E Martignoni I Anand O Appenzeller

1. To assess the effects of acute exposure to high altitude on baroreceptor function in man we evaluated the effects of baroreceptor activation on R-R interval and blood pressure control at high altitude. We measured the low-frequency (LF) and high-frequency (HF) components in R-R, non-invasive blood pressure and skin blood flow, and the effect of baroreceptor modulation by 0. 1-Hz sinusoidal n...

Journal: :journal of medicinal plants and by-products 0

the focus of the present study was to investigate the chemical composition of essential oil of salvia hydrangea dc. ex benth. growing wild in kiasar-hezarjrib, iran. in addition, effects of altitude and some soil properties on the essential oil quality and quantity of s. hydrangea was identified. the samples collected from two altitudes (1100 and 2000 m) in blossoming period, were analyzed by h...

Journal: :British heart journal 1975
V Balasubramanian V S Kaushik S C Manchanda S B Roy

Effects of high altitude hypoxia on systolic time intervals were examined in 34 healthy men: 20 sea level residents studied at rest and at the end of 3 minutes steady isometric (handgrip) exercise at sea level and then serially for the first 5 days and on the tenth day, at an altitude of 3658 m, and I4 permanent residents at high altitude studied at high altitude. In the sea level residents the...

Journal: :Journal of Human Hypertension 1997

Journal: :Bulletin (Hospital for Joint Diseases (New York, N.Y.)) 2006
Thomas J Kesman Jon Lurie Weiping Zhou Thomas A DeCoster Kenneth J Koval

BACKGROUND A paucity of knowledge currently exists surrounding the effects of altitude on femur fracture outcomes. The purpose of this study was to determine if altitude plays a significant role in determining the outcome of femoral shaft fractures in the elderly. The authors hypothesized that the additional cardiopulmonary stress of altitude would promote poorer outcomes of those individuals t...

Journal: :Wilderness & Environmental Medicine 2003

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