Universidad Manuela Beltrán

About: Universidad Manuela Beltrán is a education organization based out in Bogotá, Colombia. It is known for research contribution in the topics: Population & Body mass index. The organization has 690 authors who have published 611 publications receiving 2526 citations.

Predictive Validity of the Body Adiposity Index in Overweight and Obese Adults Using Dual-Energy X-ray Absorptiometry

Abstract: The body adiposity index (BAI) is a recent anthropometric measure proven to be valid in predicting body fat percentage (BF%) in some populations. However, the results have been inconsistent across populations. This study was designed to verify the validity of BAI in predicting BF% in a sample of overweight/obese adults, using dual-energy X-ray absorptiometry (DEXA) as the reference method. A cross-sectional study was conducted in 48 participants (54% women, mean age 41.0 ± 7.3 years old). DEXA was used as the “gold standard” to determine BF%. Pearson’s correlation coefficient was used to evaluate the association between BAI and BF%, as assessed by DEXA. A paired sample t-test was used to test differences in mean BF% obtained with BAI and DEXA methods. To evaluate the concordance between BF% as measured by DEXA and as estimated by BAI, we used Lin’s concordance correlation coefficient and Bland–Altman agreement analysis. The correlation between BF% obtained by DEXA and that estimated by BAI was r = 0.844, p < 0.001. Paired t-test showed a significant mean difference in BF% between methods (BAI = 33.3 ± 6.2 vs. DEXA 39.0 ± 6.1; p < 0.001). The bias of the BAI was −6.0 ± 3.0 BF% (95% CI = −12.0 to 1.0), indicating that the BAI method significantly underestimated the BF% compared to the reference method. Lin’s concordance correlation coefficient was considered stronger (ρc = 0.923, 95% CI = 0.862 to 0.957). In obese adults, BAI presented low agreement with BF% measured by DEXA; therefore, BAI is not recommended for BF% prediction in this overweight/obese sample studied.

El espectrograma de banda estrecha como ayuda para el aprendizaje del método GRABS de análisis perceptual de la disfonía

Abstract: Resumen Introduccion La evaluacion perceptual de la calidad vocal sigue siendo un importante metodo para evaluar los trastornos vocales. El metodo GRABS se ha consolidado como una escala frecuentemente utilizada para puntuar la severidad de una disfonia, pero no se ha publicado un protocolo estandar para guiarse. El entrenamiento es importante para alcanzar una buena concordancia en la calificacion de sus parametros entre distintos observadores, sin embargo, las referencias bibliograficas mas citadas no describen orientaciones para su uso clinico, muestras a analizar o calibracion. Material y metodo Este estudio investigo el efecto de voces patron y la espectrografia de banda estrecha en el entrenamiento del GRABS de profesionales no expertos. Las voces de 107 pacientes fueron evaluadas por 4 profesionales no expertos utilizando la escala GRABS en 2 sesiones, primero sin voces patron ni espectrograma y 6 meses despues con voces patron y espectrograma de banda estrecha. Resultados Los resultados muestran que las voces patron y el espectrograma ayudaron a mejorar la fiabilidad de los parametros G, B, A y S. La concordancia entre los distintos observadores de acuerdo al estadistico k fue significativamente mayor con la adicion de la informacion espectrografica para los parametros B y S. Discusion Este estudio demuestra que los profesionales no expertos mejoran significativamente sus puntuaciones tras el entrenamiento con voces patron y la visualizacion del espectrograma de banda estrecha.

A Cross-Sectional Study of the Prevalence of Metabolic Syndrome and Associated Factors in Colombian Collegiate Students: The FUPRECOL-Adults Study.

Abstract: Metabolic syndrome (MetS) is one of the major public health problems worldwide. The objective of the present study is to investigate the prevalence and the associated variables of MetS in Colombian collegiate students. This cross-sectional study included a total of 890 (52% women) healthy collegiate students (21.3 ± 3.2 years old). The prevalence of MetS was determined by the definition provided by the International Diabetes Federation (IDF). We further examined associations between the prevalence of MetS and related factors, such as age, gender, anthropometric and body composition, weight status, and nutrition profile. The overall prevalence of MetS was 6.0% (95% CI = 4.5% to 7.6%), and it was higher in men than women. The most prevalent components were low high-density lipoprotein cholesterol, high triglyceride levels, waist circumference, and blood pressure levels. The predisposing factors for having a MetS included: being male, over 23 years old, overweight or obese, and having an unhealthy waist-to-height ratio. In conclusion, the occurrence of MetS in young adults is substantial. These findings may be relevant to health promotion efforts for collegiate students in order to develop prospective studies and screening for young adults, which will aid in targeted intervention development to decrease cardiometabolic risk factors.

Riesgo suicida según la tríada cognitiva negativa, ideación, desesperanza y depresión

Abstract: Objective: Determine the relationship between suicidal ideation, despair, the negative cognitive triad and depression, as evidence of the cognitive model of suicidal risk. Method: This is an empirical-analytical study with a descriptive, correlational and comparative design. The variables were measured with the BDI-II, PANSI and ITC inventories and the BHS scale. The final sample included 90 participants of both sexes, with a mean age of 24.2 years (DT = 8.65 years). They were from different socioeconomic brackets and most were college educated. Results: Statistically significant correlations were found between suicidal ideation, despair, depression and the negative cognitive triad. There were important differences between the depressive and non-depressive groups, with major effects for the three cognitive variables. Interpretation and Conclusions: These results constitute new evidence of the proposed cognitive model concerning the relationship between depression, the negative cognitive triad, suicidal ideation and despair, as proposed in different reviews on negative cognition and suicide. The limitations of the study were analyzed with respect to the small size of the sample, the differences between the sexes in terms of depression in the face of specific stressors, and the variations by age groups in suicidal risk among the young.