Abstract
Numerous papers have been published which indicate that living above 3000 meters retards child growth. This paper presents a general overview of the Bolivian Boys Project conducted to assess the influence of residential altitude and socioeconomic status upon the physical health and fitness of 10-12 year-old prepubertal Bolivian males. Findings are not however described. The study was conducted during 1990 and 1991 in La Paz and Santa Cruz de la Sierra. The city of La Paz lay at an altitude ranging 3200-4100 meters above sea level compared to Santa Cruz at 420 meters. Health fitness and development was evaluated and observed for a total of 143 only healthy nonobese boys. Only Tanner stage I prepubertal boys were included in the study with subjects level of gonadal maturation measured by testosterone concentration in saliva as an objective marker of pubertal development. 44 were of high altitude (HA) and low socioeconomic status (LSES) 23 of HA/high socioeconomic status (HSES) 29 of low altitude (LA)/LSES and 47 LA/HSES. Subjects levels of physical health and fitness were determined according to anthropometrical physiological and biochemical variables as well as 24-hour evaluations of physical activity and nutritional intake.
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