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Absence of work efficiency differences during cycle ergometry exercise in Bolivian Aymara
(High Altitude Medicine & Biology, 2004)
ABSTRACT.
This study tested the hypothesis that Andean natives are adapted to high altitude (HA) via high work ef
ficiency during exercise in hypoxia. A total of 186 young males and females were tested in Bo
livia, ...
A prospective study of early pregnancy loss in humans
(Fertility and Sterility, 2006-08)
Objective: To test two hypotheses: In spontaneous conceptions, early pregnancy loss (EPL) is associated with [1]
inadequate luteal (ovarian) P, and/or [2] elevated follicular (adrenal) P.
Design: A population-based ...
Rendimiento de futbolistas profesionales aclimatados y no aclimatados a la altura, a 3600 metros
(PubliCE, 2003-01-05)
Resumen.
Los partidos del Fútbol Europeo son frecuentemente jugados a nivel internacional en regiones montañosas de Sudamérica. En este estudio, fueron medidas las respuestas del ejercicio durante una ergometría en ciclo ...
Interpopulational differences in progesterone levels during conception and implantation in humans
(PNAS, 2004-02-10)
Clinical studies of women from the United States demonstrate a
sensitivity of the ovarian system to energetic stress. Even moder
ate exercise or caloric restriction can lead to lower progesterone
levels and failure to ...
Seasonal modulation of reproductive effort during early pregnancy in humans
(American Journal of Human Biology, 2009-03-03)
Abstract.
Life history theory predicts that early pregnancy presents a relatively low cost, uncontested opportunity for a woman to terminate investment in a current reproductive opportunity if a conceptus is of poor quality ...
Seasonal and circadian variation in salivary testosterone in rural Bolivian men
(American Journal of Human Biology, 2009-02-19)
Abstract.
Testosterone (T) plays a key role in the increase and maintenance of muscle mass and bone density in
adult men. Life history theory predicts that environmental stress may prompt a reallocation of such investments ...
Pulmonary-artery pressure and exhaled nitric oxide in Bolivian and caucasian high altitude dwellers
(High Altitude Medicine & Biology, 2008)
Abstract.
There is evidence
that high altitude populations may be better protected from hypoxic pulmonary hypertension than low altitude natives, but the underlying mechanism is incompletely understood. In Tibetans, ...
Excessive polycythemia occurs in young high-altitude (3600 M) residents in the absence of lung disease
(High Altitude Medicine & Biology, 2002-04-18)
Objective: Chronic Mountain Sickness occurs in , 8% of the La Paz
population. We asked whether its primary diagnostic sign, excessive polycythemia (EP), occurred in youngeraged persons
without lung disease. Methods: ...
Offspring of preeclamptic mothers are predisposed to hypoxic pulmonary hypertension
(High Altitude Medicine & Biology, 2005-02-22)
Adverse events in utero may predispose to cardiovascular disease in adulthood. In preeclampsia, the diseased placenta releases circulating vasculotoxic factors
that cause maternal endothelial dysfunction. These factors ...
Epidemiological transitions, reproductive health, and the Flexible Response Model
(ECONOMICS AND HUMAN BIOLOGY, 2003)
Abstract.
In concert with improving standards of living since the mid-19th century, chronic and non-infectious diseases replaced infectious diseases as the major causes of mortality in more developed countries. Thus, ...