Resumen

SAN MIGUEL-SIMBRON, José L, M.D; URTEAGA-MAMANI, Noelia A  y  MUNOZ-VERA, Maruska. How much fat mass and fat-free mass do high altitude schools have? Data from schools using the stable isotope methodology: fat mass and fat-free mass indices. Cuad. - Hosp. Clín. [online]. 2024, vol.65, n.2, pp.105-111. ISSN 1562-6776.  https://doi.org/10.53287/nmxp3494ms13g.

The study of life at high altitude is exciting, its antecedents of an ancient civilization demonstrate the great development that existed at different levels of knowledge. The physiology of high-altitude inhabitants presents differences described in teaching treatises, but not descriptions and analysis as can be achieved by studying in depth characteristics of functioning in natural conditions of hypobaric hypoxia. Nuclear science, applied in high altitude studies, uses a very important physiological- biophysical principle such as isotopic dilution (in the case of deuterium, a stable, non-radioactive isotope) to evaluate total body water, and from this determine the free mass of fat and fat mass. Obesity, as excess body fat, cannot be detected by the body mass index (BMI), since it has low sensitivity to do so in childhood. Similar BMI values in high-altitude schoolchildren may contain different values of fat mass index (FMI) and fat-free mass index (FMI). The interpretation of the clinical significance of the fat mass and fat-free mass indices, in terms of normalization of kg for height in schoolchildren, is of utmost importance for pediatric health and nutrition evaluation and the future prediction of chronic diseases. transmissible in a high altitude context.

Palabras clave : High altitude; obesity; fat mass index; fat-free mass index; schoolchildren.

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