Validez de ecuaciones y propuesta de valores referenciales para estimar la masa grasa de adultos mayores

Translated title of the contribution: Development of equations based on Body Mass Index to estimate fat mass in older people

Marco Cossio Bolaños, Rubén Vidal-Espinoza, Luis Felipe Castelli Correia de Campos, Jose Alfredo Sulla Torres, Camilo Urra Albornoz, Patricio Gatica-Mandiola, Rossana Gómez-Campos

Research output: Contribution to journalArticlepeer-review

Abstract

Background: Excess fat mass (FM) has a higher risk of producing sarcopenia, physical deterioration and reduced quality of life in older people. Aim: To propose regression equations based on the Body Mass Index (BMI) to predict fat mass using double energy X-ray absorptiometry (DXA) as the gold standard. Material and Methods: Cross-sectional study in 1,188 participants (523 men and 665 women) aged 60 to 85 years. Ten percent of these (59 men and 60 women) were randomly selected to propose FM equations using DXA. The remaining 90% was used to calculate FM and develop percentiles. Results: Two equations were proposed to estimate FM [men: FM = -29,502+ (1,912 * BMI) R2 = 79%, women: FM = -9,891+ (1,323 * BMI) R2 = 80%]. Ten, 50, 85 and 95 percentiles were developed to evaluate FM. Conclusions: This study developed reliable regression equations and referential values to estimate FM in older people.

Translated title of the contributionDevelopment of equations based on Body Mass Index to estimate fat mass in older people
Original languageSpanish
Pages (from-to)1246-1253
Number of pages8
JournalRevista Medica de Chile
Volume148
Issue number9
DOIs
StatePublished - Sep 2020
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2020 Sociedad Medica de Santiago. All rights reserved.

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