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- Title
Desarrollo de ecuaciones antropométricas para predecir el porcentaje de grasa corporal total en niños y adolescentes chilenos.
- Authors
Urra-Albornoz, Camilo; Cossio-Bolaños, Marco; Urzua-Alul, Luis; Márques de Moraes, Anderson; Lazari, Evandro; Cossio Bolaños, Wilbert; Castelli Correia de Campos, Luis Felipe; Luarte Rocha, Cristian; Gómez-Campos, Rossana
- Abstract
Introduction: studying the percentage of body fat (%BF) in children and adolescents is very relevant, since a high level of body fat in childhood and adolescence represents overweight and obesity. Objective: to identify the anthropometric indicators related to %BF and to validate regression equations to predict %BF in children and adolescents using dual-energy X-ray absorptiometry (DXA) as a reference method. Methods: a descriptive study (cross-sectional) was designed in 1126 schoolchildren (588 males and 538 females) from the Maule region (Chile). The age range ranged from 6.0 to 17.9 years. Weight, height, two skinfolds (tricipital and subscapular and waist circumference (WC) were evaluated. Body mass index (BMI), triponderal mass index (TMI), waist height index (WHtR) were calculated. Body fat percentage (%BF) was assessed by DXA scanning. Results: the relationships between Σ (Tricipital + Subscapular), TMI and WHtR with %BF (DXA) ranged from R² = 52 % to 54 % in men, and from R² = 41 % to 49 % in women. The equations generated for men were: %BF = 9.775 + [(0.415 * (Tr + SE)] + (35.084 * WHtR) - (0.828 * age), R² = 70 %, and %BF = 20.720 + [(0.492 * (Tr + SE)] + (0.354 * TMI) - (0.923 * age), R² = 68 %], and for women: %BF = 8.608 + [(0.291 * (Tr + SE)] + (38.893 * WHtR) - (0.176 * age), R² = 60 %, and %BF = 16.087 + [(0.306 * (Tr + SE)] + (0.818 * TMI) - (0.300 * age), R² = 59 %. Conclusion: this study showed that the sum of tricipital and subscapular skinfolds, IP and WHtR are adequate predictors of %BF. These indicators allowed the development of two regression equations acceptable in terms of precision and accuracy to predict %BF in children and adolescents of both sexes.
- Subjects
MAULE (Chile : Region); CHILDHOOD obesity; DUAL-energy X-ray absorptiometry; FAT; BODY mass index; WAIST circumference; OVERWEIGHT children; ADOLESCENCE; SCHOOL children
- Publication
Nutrición Hospitalaria, 2022, Vol 39, Issue 3, p580
- ISSN
0212-1611
- Publication type
Article
- DOI
10.20960/nh.03636