Listar por autor "Cáceres, Esperanza"
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Adaptación al ejercicio muscular en la altura
Paz Zamora, Mario; Spielvogel, Hilde; Cáceres, Esperanza (Master, 1988)El ser humano no pasa la vida en condiciones estables, sino se debe adaptar necesariamente a condiciones diferentes, como cambio de temperatura (calor, frío), sequedad, humedad, incremento de la presión barométrica ... -
Body fluid homeostasis and cardiovascular adjustments during submaximal exercise : inlfuence of chewing coca leaves
Spielvogel, Hilde; Rodríguez, Armando; Sempore, Brigitte; Cáceres, Esperanza; Cottet-Emard, Jean-Marie; Guillon, Laurent; Favier, Roland (Eur J Appl Physiol, 1997)Abstract. The present study was undertaken to determine the haematological and cardiovascular status, at rest and during prolonged (1 h) submaximal exercise (approximately 70% of peak oxygen uptake in a group (n = 12) of ... -
Capacidad aeróbica de adolescentes europeos y amerindios nativos de altura
Spielvogel, Hilde; Paredes F, Luis; Cáceres, Esperanza; Greksa, Lawrence P (Instituto Boliviano de Biología de Altura, 1987)Resumen. 47 nativos de altura fueron sometidos a una prueba de esfuerzo máximo en un tapiz rodante a 3600 m. Los sujetos fueron agrupados en 4 subgrupos en base a fondo étnico (Europeo-Aymara) y a edad (adolescentes menores ... -
Coca chewing for exercise : hormonal and metabolic responses of nonhabitual chewers
Favier, Roland; Cáceres, Esperanza; Guillon, Laurent; Sempore, Brigitte; Sauvain, Michel; Koubi, Harry; Spielvogel, Hilde (Journal of Applied Physiology, 1996)Abstract. To determine the effects of acute coca use on the hormonal and metabolic responses to exercise, 12 healthy nonhabitual coca users were submitted twice to steady-state exercise (∼75% maximal O2 uptake). On one ... -
Effect of developmental and ancestral high-altitude exposure on chest morphology and pulmonary function in andean and european/north american natives
Brutsaert, Tom D; Soria, Rudy; Cáceres, Esperanza; Spielvogel, Hilde; Haas, Jere D (American Journal of Human Biology, 1999)Abstract. Chest depth, chest width, forced vital capacity (FVC), and forced expiratory volume (FEV1) were measured in 170 adult males differing by ancestral (genetic) and developmental exposure to high altitude (HA). A ... -
Effect of developmental and ancestral high-altitude exposure on VO2peak of andean and european/north american natives
Brutsaert, Tom D; Spielvogel, Hilde; Soria, Rudy; Cáceres, Esperanza; Buzenet, Giliane; Haas, Jere D (American Journal of Physical Anthropology, 1999)ABSTRACT. Peak oxygen consumption (V02peak) was measured in 150 adult males (18-35 years old) in Bolivia, using a complete migrant study design to partition developmental from ancestral (genetic) effects of high altitude ... -
Effect of high altitude on protein metabolism in Bolivian children
San Miguel, José L; Spielvogel, Hilde; Berger, Jacques; Araoz, Mauricio; Luján, Carmen; Téllez, Wilma; Cáceres, Esperanza; Gachon, Pierre; Coudert, Jean; Beaufrere, Bernard (High Altitude Medicine & Biology, 2002-08-01)Abstract. In Bolivia, malnutrition in children is a major health problem that may be caused by inadequate protein, energy, and micronutrient intake; exposure to bacterial and parasitic infections; and ... -
Effect of menstrual cycle phase on exercise performance of high-altitude native women at 3600 m
Brutsaert, Tom D; Spielvogel, Hilde; Cáceres, Esperanza; Araoz, Mauricio; Chatterton, Robert T; Vitzthum, Virginia J (The Journal of Experimental Biology, 2002)Summary. At sea level normally menstruating women show increased ventilation (VE) and hemodynamic changes due to increased progesterone (P) and estrogen (E2) levels during the mid-luteal (L) compared to the mid-follicular (F) ... -
Effects of coca chewing on hormonal and metabolic responses during prolonged sbmaximal exercise
Favier, Roland; Cáceres, Esperanza; Koubi, Harry; Sempore, Brigitte; Sauvain, Michel; Spielvogel, Hilde (J Appl Physiol, 1996)Abstract The effects of coca chewing on prolonged submaximal exercise responses were investigated in chronic coca chewers and compared with a group of nonchewers. At rest, coca chewing during a 1-h period was followed by ... -
Effects of coca chewing on metabolic and hormonal changes during graded incremental exercise to maximum
Spielvogel, Hilde; Cáceres, Esperanza; Koubi, Harry; Sempore, Brigitte; Sauvain, Michel; Favier, Roland (J. Appl. Physiol., 1996)Abstract. We examined the effects of 1 h of coca chewing on metabolic and hormonal responses during incremental exercise to exhaustion in traditional coca chewers (C; n = 8), and the results were compared with a group of ... -
Estudio comparativo de la función respiratoria en niños bolivianos de la altura y del trópico. Influencia del estado nutricional y antropométrico
Vargas Pacheco, Enrique; Villena Cabrera, Mercedes; Spielvogel, Hilde; Obert, Philippe; Quiroga, Ana María de; Falgairette, Guy; Cáceres, Esperanza; Kemper, Han CG; Coudert, Jean; Gonzales, Cristina (Cuadernos, 1995)RESUMEN. Nuestro propósito tiene una doble finalidad, en primer lugar hacer un análisis de los factores que contribuyen en la función respiratoria de niños expuestos a diferentes ambientes ecológicos, altura y trópico ... -
Influence of coca chewing on hematological and cardiorespiratory responses to submaximal exercise
Spielvogel, Hilde; Rodríguez, Armando; Sempore, Brigitte; Cáceres, Esperanza; Cottet-Emard, Jean-Marie; Guillon, Laurent; Favier, Roland ([s.n.], 1996)Summary. The cardiovascular effects of cocaine are relatively well known but little information is available concerning those of coca chewing. The present study was undertaken to determine the hematological and cardiovascular ... -
Permormance of altitude acclimatized and non-acclimatized professional football (soccer) players at 3,600 M
Brutsaert, Tom D; Spielvogel, Hilde; Soria, Rudy; Araoz, Mauricio; Cáceres, Esperanza; Buzenet, Giliane; Villena, Mercedes; Paz-Zamora, Mario; Vargas, Enrique (Journal of Exercise Physiology, 2000-04-02)European football (soccer) matches frequently are played at the international level in mountainous regions of South America. In this study, the exercise response during cycle ergometry and the rate of football match ... -
Rendimiento de futbolistas profesionales aclimatados y no aclimatados a la altura, a 3600 metros
Brutsaert, Tom D; Spielvogel, Hilde; Soria, Rudy; Araoz, Mauricio; Cáceres, Esperanza; Buzenet, Giliane; Villena, Mercedes; Paz-Zamora, Mariano; Vargas, Enrique (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 ... -
Salivary progesterone levels and rate of ovulation are significantly lower in poorer than in better-of urban-dwelling Bolivian women
Vitzthum, Virginia J; Bentley, Gillian R; Spielvogel, Hilde; Cáceres, Esperanza; Thornburg, Jonathan; Jones, Lary; Shore, Sarah; Hodges, Kelly R; Chatterton, Robert T (Human Reproduction, 2002)Agriculturalists in less-developed countries (LDC) have lower progesterone levels than urban industrialized populations. However, it is unknown if urban LDC populations are also relatively lower. We tested whether urban ... -
Seasonal and circadian variation in salivary testosterone in rural Bolivian men
Vitzthum, Virginia J; Worthman, Carol M; Beall, Cynthia M; Thornburg, Jonathan; Vargas, Enrique; Villena, Mercedes; Soria Sánchez, Rudy; Cáceres, Esperanza; Spielvogel, Hilde (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 ... -
Total lung capacity in young highlanders of Aymara ancestry
Greksa, Lawrence P; Spielvogel, Hilde; Cáceres, Esperanza (American Journal of Physical Anthroplogy, 1994)ABSTRACT. Total lung capacity (TLC) and its components, including residual volume (RV) and vital capacity (VC), are described in a sample of 164 male and 143 female youths of Aymara ancestry (10.0-19.9 years) who were ... -
Utilidad, indicaciones, riesgos y resultados de la prueba de esfuerzo graduado en bicicleta ergométrica
Aparicio, Octavio; Spielvogel, Hilde; Antezana, Gerardo; Noriega, Irma de; Ugarte, Hortensia de; Cáceres, Esperanza (Universidad Mayor de San Andrés, 1990)Resumen. Entre los años 1983 y 1990 se efectuaron 400 pruebas de esfuerzo graduado en el Departamento Cardiovascular del I.B.B.A. en la ciudad de La Paz (3600 m), 107 sujetos fueron de sexo femenino, 293 del sexo masculino. ...