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Examinando Artículos de Revistas por Autor "Castillo-Valenzuela, Oscar"
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Ítem Comportamiento alimentario, suficiencia dietaria y estado nutricional en niños entre 6 a 18 meses(Sociedad Chilena de Pediatría, 2021) Bustos-Arriagada, Edson; Cádiz, Marcelo; Etchegaray, Karina; Castillo-Valenzuela, OscarLa alimentación infantil presenta características cualitativas y cuantitativas específicas. La influencia de los padres sobre la ingesta de alimentos es crucial en el desarrollo de hábitos y un adecuado estado nutricional. Objetivo: Evaluar el comportamiento alimentario, las características dietarias y estado nutricional en niños entre 6 a 18 meses. Sujetos y Método: Estudio descriptivo de corte transversal en 199 niños. En una muestra por conveniencia se consignaron datos demográficos y antropométricos para estado nutricional, y antecedentes dietarios, mediante recordatorio de 24 h para el compor- tamiento dietario y la suficiencia alimentaria. Se aplicó t-student y ANOVA de una vía para varia- bles continuas y test chi-cuadrado para categóricas. Resultados: 54,8% mujeres. Estado nutricional: 21,1% sobrepeso y 7,6% obesidad. Un 56,8% de los niños tenían números de comidas acorde su edad. La ingesta promedio de energía fue de 652,9 ± 224,2 calorías diarias. La ingesta de energía y macro- nutrientes fue significativamente mayor en los niños que no consumían leche materna y de 12 a 18 meses. La adecuación energética, lípidos y carbohidratos en las niñas fue significativamente mayor a la de niños. Un 83,1% del consumo de alimentos fueron habituales para este grupo etario. Conclu- sión: En el comportamiento alimentario se encontró que 4 de cada 10 niños presentan números de comidas mayor al sugerido a su edad. En cuanto a la suficiencia dietaría hay una mayor ingesta en los niños con estado nutricional normal, sin LM y entre 12 y 18 meses. A pesar de la alta prevalencia de obesidad, esta fue menor a la observada a nivel nacional.Ítem Feeding behaviour and lifestyle of children and adolescents one year after lockdown by the COVID-19 pandemic in Chile(MDPI, 2021-11) Bustos-Arriagada, Edson; Fuentealba Urra, Sergio; Etchegaray Armijo, Karina; Quintana Aguirre, Nicolás; Castillo-Valenzuela, OscarLockdown caused by the COVID-19 pandemic may have influenced feeding behaviour and lifestyle in children and adolescents. The purpose of this study was to analyse feeding behaviour and lifestyle in children and adolescents one year after lockdown by the COVID-19 pandemic in Chile. In this cross-sectional study an online survey was implemented in 1083 parents and care- givers regarding their children’s feeding behaviour and lifestyle and sociodemographic background. The results showed that “eat breakfast daily” (89.2%), “not overnight food intake” (69.9%) and “not fast-food intake” (66.0%) were the most frequent reported feeding behaviours, particularly in pre-school children. Respondents declaring healthy feeding behaviours and lifestyle were 23.4 and 23.7%, respectively, with no significant differences by sex. In pre-school children, families with three or fewer members and parents or caregivers with an undergraduate or postgraduate degree reported a significantly better feeding behaviour and lifestyle compared to families with more than three members and parents or caregivers without an undergraduate or postgraduate degree. In conclusion, the pandemic lockdown had a negative impact in lifestyle in children and particularly in adolescents. Healthier feeding behaviour was associated with fewer family members and parents or caregivers with at least an undergraduate degree.Ítem Leucine Intake and Sarcopenia Indicators of an Elderly Group from the Metropolitan Region, Santiago De Chile, Who Participated in the Program for Complementary Food in Older People (PACAM)(MDPI, 2024-10-18) Bustos-Arriagada, Edson; Arazo-Rusindo, Migdalia Caridad; Rivera-Andrades, Gonzalo; Pérez-Bravo, Francisco; Castillo-Valenzuela, Oscar; Barros-Velázquez, Jorge; Mariotti-Celis, María SaloméBackground and objective: The global aging population has led to increased noncommunicable diseases, often linked to poor diet and declining muscle strength and mass. This study assessed leucine intake and sarcopenia indicators among 181 adults aged 60–80 in Santiago, Chile, participating in the Program for Complementary Food in Older People (PACAM), with 80% being women. Methods: Sarcopenia was evaluated through muscle strength and mass using the EWGSOP2 criteria for its identification. Results: 78.45% of participants did not meet the recommended leucine intake of 3 g per day and sarcopenia was identified in 17.13% of them. The skeletal muscle index was 48.07%, and hand grip strength was 26.52%, with men showing significantly higher grip strength (48.60% vs. 28.80%, p = 0.00). Inadequate leucine intake was more common in those aged 60–75 (85.9%) than those over 75 (p = 0.03). No significant differences in BMI, grip strength, or muscle mass were found between those with adequate and inadequate leucine intake, and PACAM food consumption did not significantly affect these parameters. A sub-analysis showed significant differences in grip strength among powdered dairy drink consumers (35.20% vs. 17.80%, p = 0.01). Conclusions: Chilean elderly participating in PACAM present a high prevalence of sarcopenia and leucine deficiency among with no notable benefits from PACAM foods intake. Despite the limitations of the local body composition assessment method, this research addresses a critical public health issue in Chile. Future studies should evaluate physical performance and focus on leucine supplementation to clarify its effects on sarcopenia.Ítem Vitamin D status and obesity in children from Chile(Springer Nature, 2021) Pérez-Bravo, Francisco; Duarte, Lissette; Arredondo-Olguín, Miguel; Iñiguez, Germán; Castillo-Valenzuela, OscarBACKGROUND: Vitamin D [25(OH)D] is essential for normal bone development and maintenance. Furthermore, its deficiency has been associated with obesity, cardiovascular diseases, insulin resistance, autoimmune diseases, and certain cancers. OBJECTIVE: To determine the incidence of serum 25(OH)D deficiency (<20 ng/ml) among apparently healthy Chilean children (4–14 years old) from three Chilean geographic areas during May–September 2018. MATERIALS AND METHODS: Serum 25(OH)D levels were measured by a competitive protein-binding ELISA assay in 1134 children, and correlations between serum 25(OH)D levels, BMI, and geographic area were calculated. Individuals were grouped according to their serum 25-hydroxyvitamin D levels (ng/ml): severe deficiency: <5; moderate deficiency: 5–10.9; mild deficiency: 11–20.9; insufficiency: 21–29.9 and sufficiency: 30–100. RESULTS: We found 80.4% of children had serum 25(OH)D deficiency, with 1.7% severe, 24.6% moderate, and 54.1% mild. In the three cities, the percentage of serum 25(OH)D deficit was increased when comparing overweight or obesity with a healthy weight. Additionally, an interaction effect was observed between geographic area, nutritional status, and serum 25(OH)D levels using the factorial ANOVA test (p = 0.038). In Antofagasta, there were more overweight children and also a higher percentage of children with VitD deficiency (<30 ng/ml) compared to Santiago or Concepción. CONCLUSION: This study revealed a high prevalence of serum 25(OH)D deficiency in children between 4 and 14 years old in Chile (80.4%) during May–September 2018. Obese and overweight children had the highest prevalence of serum 25(OH)D deficiency.