Abstract Introduction: peripheral arterial disease (PAD) is considered an underdiagnosed pathology that affects nearly 200 million people and is associated with a high burden of morbidity and mortality. In many cases, endovascular management is preferred over open surgery, especially in patients with multiple comorbidities that limit the latter approach. However, it has limitations related to the use of contrast medium in the context of patients who additionally have multiple comorbidities, including kidney disease, which can compromise their underlying pathology. Therefore, the need arises to implement a method that limits the use of contrast, without compromising the technical success of the procedure. Materials and methods: a retrospective analysis of those patients who received endovascular treatment under ultrasonography guidance for the treatment of acute limb ischemia and their postoperative outcome. Objective: describe the characteristics of the arterial lesions, the post-surgical results and the complications of the patients who received management of arterial occlusive disease with extremity threat by endovascular approach under ultrasonographic guidance, at the University Hospital La Samaritana (Bogotá, Colombia) between 2018 - 2022. Results: a total of 40 patients were identified with 3 types of lesions including stenosis, and mixed lesions. Those patients received either balloon angioplasty, angioplasty with stent or thrombectomies. The main associated complication was pseudoaneurysm after arterial catheter removal in 22.5 %, followed by arterial dissection in 13 %. Post-surgical success was considered in 92.7 % of patients, evidenced either on the improvement in the percentage of final peak systolic velocity or in the morphology of the artery distal to the intervened segment. Conclusion: The use of ultrasonography as a guide for endovascular procedures is presented as an alternative to conventional angiography, with good success rates.

Resumen Introducción: la enfermedad arterial periférica (EAP) se considera una patología infradiagnosticada que afecta a cerca de doscientos millones de personas y se asocia con una alta carga de morbimortalidad. En muchos casos, se prefiere el manejo endovascular sobre el quirúrgico abierto, especialmente en pacientes con múltiples comorbilidades, que limitan este último abordaje. Sin embargo, presenta limitaciones relacionadas con el uso de medio de contraste en pacientes que adicionalmente presentan múltiples comorbilidades, incluyendo enfermedad renal, que podría comprometer su patología de base. Por esto, surge la necesidad de implementar un método que limite el uso de contraste sin comprometer el éxito técnico del procedimiento. Objetivo: describir las características de las lesiones arteriales, los resultados posquirúrgicos y las complicaciones de los pacientes que recibieron manejo de la EAP vía endovascular bajo guía ultrasonográfica. Materiales y métodos: se realizó un análisis retrospectivo de los pacientes que recibieron tratamiento endovascular bajo guía ultrasonográfica para el tratamiento de EAP con amenaza de la extremidad y su resultado posoperatorio durante el periodo comprendido entre enero de 2018 y enero de 2022 en el Hospital Universitario Samaritana (Bogotá, Colombia). Resultados: se identificaron un total de 40 pacientes con 3 tipos de lesiones, incluyendo estenosis, oclusiones y lesiones mixtas, que fueron intervenidas con angioplastia con balón o con stent o trombectomías, todos bajo guía ultrasonográfica. La principal complicación asociada fue el pseudoaneurisma posterior a la retirada del catéter arterial en el 22,5 % de las ocasiones, seguida de la disección arterial, en el 13 % de las veces. Se consideró éxito posquirúrgico en el 92,7 % de los pacientes, evidenciado por mejoría en el porcentaje de velocidad pico sistólica final o en la morfología de la arteria distal al segmento intervenido. Conclusión: el uso de la ultrasonografía como guía de procedimientos endovasculares constituye una alternativa a la angiografía convencional, con buenas tasas de éxito.

Resumen Antecedentes: la fragilidad se caracteriza por la pérdida de reservas biológicas y la vulnerabilidad a resultados adversos. Una intervención con efectos beneficiosos sobre la prevención y el manejo de la fragilidad es la práctica regular de actividad física (AF). Objetivo: caracterizar los niveles de AF y tiempo sedente en personas mayores con fragilidad. Metodología: se incluyó a 232 personas mayores de 60 años de la región metropolitana, participantes en la Encuesta Nacional de Salud 2016-2017. La fragilidad se evaluó en base a los criterios de la escala de fenotipos de Fried y el nivel de AF y tiempo sedentario con el cuestionario Global Physical Activity Questionnaire (GPAQ v2). Los niveles de AF según el fenotipo de fragilidad se determinaron con análisis de regresión lineal. Resultados y conclusiones: las personas mayores con fragilidad realizan menos AF total (β = -292,6 min/día [IC 95 %: 399,5; -185,7], p = 0,001), laboral (β = -5821,8 min/día [IC 95 %: 8680,8; -2962,8], p = 0,001), de transporte (β = -68,0 min/día [IC 95 %: -105,4; -30,62], p = 0,001). También se observó menor cantidad de AF moderada (β = -137,7 min/día [IC 95 %: -202,0; -73,5], p = 0,001); vigorosa (β = -43,4 min/día [IC 95 %: -81,6; -5,20], p = 0,026) y mayor tiempo sedente (β = 3,55 hora/día [IC 95 %: -1,97; 5,14 ], p = 0,001). Las personas mayores frágiles presentan niveles más bajos de AF en comparación con sus pares sin fragilidad. Considerando que la población chilena experimentará un aumento en el número de personas mayores, es imprescindible implementar medidas preventivas que permitan retrasar la aparición de la fragilidad, como fomentar la práctica de AF en todos sus niveles.

Abstract Background: fragility is characterized by loss of biological reserves and vulnerability to adverse outcomes. An intervention with beneficial effects on the prevention and management of frailty is the regular practice of physical activity (PA). Objective: to determine the association between levels of PA, sedentary time and frailty in older Chileans by sex. Methodology: 232 people over 60 years of age from the metropolitan region participating in the National Health Survey 2016-2017 were included. Frailty was assessed based on the Fried Phenotype Scale criteria and PA level and sedentary time with the Global Physical Activity Questionnaire (GPAQ v2). The association between levels of PA with the different states of frailty was investigated with linear regression analysis. Results and conclusion: elderly people with frailty have less total PA (β = -292.6 min/day [95 % CI: 399.5; -185.7], p = 0.001), occupational PA (β = -5821.8 min/day [95 % CI: 8680.8, -2962.8], p = 0.001), transportation (β = -68.0 min/day [95 % CI: -105.4, -30.62], p = 0.001). A lower amount of moderate AF was also found (β = -137.7 min/day [95 % CI: -202.0, -73.5], p = 0.001); vigorous (β = -43.4 min/day [95 % CI: -81.6; -5.20], p = 0.026) and longer time seated (β = 3.55 hours/day [95 % CI: - 1.97, 5.14], p = 0.001). Frail older people have lower PA levels compared to their peers without frailty. Considering that the Chilean population will experience an increase in the number of older people, it is essential to implement preventive measures to delay the onset of frailty, such as promoting the practice of PA at all levels

ABSTRACT Motivation is a fundamental element for the practice of physical activity and the feeling of satisfaction with life. However, little is known about the role of such psychological variables in the lifestyle of Chilean university students. This study aimed to analyse the relationship between life satisfaction and the regulations of motivation and to compare such variables by physical activity level and sedentary behaviour of university students. The sample comprised 95 Chilean university students (63.2% female), with a mean age of 20.92 ± 1.98 years. The instruments were the IPAQ, the Satisfaction with Life Scale, and the Behavioural Regulation in Exercise Questionnaire. Descriptive measures, Pearson’s correlation coefficient, and Student’s t-tests were used to analyse the data. The results revealed positive and significant correlations between life satisfaction and intrinsic (r = 0,44), integrated (r = 0,38), and identified (r = 0,41) regulation. Students with high levels of physical activity scored higher for intrinsic, integrated, and identified regulation. Those who reported low sedentary behaviour showed higher identified regulation. Therefore, it is suggested that students’ motivational regulation may differ on some dimensions as those with higher levels of physical activity show more adaptive motivational regulation. Identified regulation also seems to play an important role in decreasing sedentary behaviour.

RESUMO A motivação é elemento fundamental para a prática de atividade física e o sentimento de satisfação com a vida. Contudo, pouco se sabe sobre o papel de tais variáveis psicológicas no estilo de vida de estudantes universitários chilenos. Este estudo teve como objetivos analisar as relações entre a satisfação com a vida e as regulações da motivação, e comparar tais variáveis em função do nível de atividade física e do comportamento sedentário de estudantes universitários. A amostra foi composta por 95 estudantes universitários chilenos (63,2% do gênero feminino), com idade média de 20,92 ± 1,98 anos. Os instrumentos avaliados foram o IPAQ, a Escala de Satisfação com a Vida e o Questionário de Regulação do Comportamento do Exercício. Medidas descritivas, coeficientes de correlação de Pearson e testes t de Student foram utilizados para analisar os dados. Os resultados revelaram correlações positivas e significativas entre satisfação com a vida e regulação intrínseca (r = 0,44), integrada (r = 0,38) e identificada (r = 0,41). Os estudantes com alto nível de atividade física obtiveram maiores pontuações para regulação intrínseca, integrada e identificada. Os indivíduos que reportaram menor comportamento sedentário possuíam maior regulação identificada. Desse modo, sugere-se que a regulação motivacional dos estudantes pode ser diferente em algumas dimensões, sendo que os indivíduos com maior nível de atividade física semanal demonstram regulações motivacionais mais adaptativas. A regulação identificada também parece desempenhar um papel importante para a redução do comportamento sedentário.

Resumen Antecedentes: El consumo máximo de oxígeno es un indicador de la aptitud cardiorrespiratoria. Objetivo: El objetivo fue relacionar y comparar el V̇O2máx. como variable dependiente con la distancia estimada en la prueba de caminata de seis minutos (PC6M) como variable independiente en estudiantes universitarios, a la vez relacionar la distancia (dependiente) con variables demográficas y antropométricas (independientes). Metodología: Estudio cuantitativo, no experimental, transversal, y descriptivo-correlacional en el que participaron 110 estudiantes universitarios. Se midió antropometría básica y signos vitales, y se aplicó un método directo de V̇O2máx. (Test de Bruce) en cinta rodante, luego se estimó la distancia recorrida en PC6M con dos ecuaciones disponibles en la literatura. Diferencias entre hombres y mujeres en las pruebas aplicadas, correlación entre las distancias estimadas con el V̇O2máx. y variables antropométricas, y la prueba de ANOVA de medidas repetidas entre el V̇O2máx. y las distancias estimadas fueron utilizadas con el programa SPSS v.22 (p<0,05). Resultados: Se encontró correlaciones significativas entre el V̇O2máx. y distancias estimadas (p<0,05) en la muestra, en hombres y mujeres, y en algunos casos la distancia se correlacionó con el sexo, la edad, el peso, la estatura y el IMC (p<0,05). Sin embargo, hubo diferencias entre el V̇O2máx. y las distancias estimadas en la PC6M (p<0,001). Conclusiones: El método directo de V̇O2máx. es distinto de las ecuaciones de predicción de distancia, aunque tienen relación significativa.

Resumo Antecedentes: O consumo máximo de oxigênio é um indicador de aptidão cardiorrespiratória. Objetivo: O objetivo é relacionar e comparar a V̇O2 máx. como variável dependente com a distância estimada no teste de caminhada de seis minutos (TC6M) como uma variável independente em estudantes universitários, ao mesmo tempo, relacionar a distância (dependente) com variáveis demográficas e antropométricas (independente). Metodologia: Estudo quantitativo, não-experimental, transversal, descritivo-correlativo, no qual participaram 110 estudantes universitários. Antropometria básica e sinais vitais foram medidos, e um método direto de V̇O2 máx. (teste Bruce) foi aplicado na esteira, então a distância coberta em TC6M foi estimada com duas equações disponíveis na literatura. Diferenças entre homens e mulheres nos testes aplicados, correlação entre distâncias estimadas com V̇O2 máx. e variáveis antropométricas, e medidas repetidas teste ANOVA entre V̇O2 máx. e distâncias estimadas foram usadas com SPSS v.22 (p<0,05). Resultados: Foram encontradas correlações significativas entre V̇O2 máx. e distâncias estimadas (p<0,05) na amostra, em homens e mulheres, e em alguns casos a distância correlacionada com sexo, idade, peso, altura e IMC (p<0,05). Entretanto, houve diferenças entre V̇O2 máx. e distâncias estimadas em TC6M (p<0,001). Conclusões: O método direto de V̇O2 máx. é diferente das equações de previsão de distância, embora elas tenham relações significativas.

Abstract Background: Maximum oxygen consumption is an indicator of cardiorespiratory fitness. Aim: The purpose was, first, to relate and compare the V̇O2max as the dependent variable with the estimated distance in the six-minute walk test (SMWT) as the independent variable in university students and, secondly, to relate the distance (dependent) with demographic and anthropometric variables (independents). Methodology: A correlational, descriptive, and quantitative study with a non-experimental design was conducted on 110 university students. In the study, basic anthropometry and vital signs were measured. A direct method of V̇O2max (Bruce test) on a treadmill was applied. Then, the distance covered in the SMWT was evaluated with two equations available in the scientific literature. Differences between men and women were measured in the tests, the correlation between the distances estimated with V̇O2max and anthropometric variables, and repeated ANOVA measurement tests between V̇O2max and estimated distance were analyzed with the SPSS v.22 program (p<0.05). Results: Significant correlations were found between V̇O2max and estimated distances (p<0.05) in the total sample, men and women, and in some cases, the distance correlated with gender, age, weight, height, and BMI (p<0.05). However, there were differences between V̇O2max and distances estimated in the SMWT (p<0.001). Conclusions: The V̇O2max measurement method is different from the distance prediction equations, although they have a significant relationship.

Resumen Este estudio plantea el análisis de la propuesta de educación integral de las instituciones adventistas de educación superior a partir de la construcción de una escala para medir la participación en los modelos educativo y de emprendimiento basados en las dimensiones físicas, intelectuales, espirituales (morales), sociales, trabajo manual, colportaje universitario, servicio voluntario y emprendimientos personales. El proceso de validación se realizó con una muestra de 345 alumnos, de los cuales 44.1 % cursaban el último año y 55.9 % eran graduados durante los últimos 10 años de la Universidad de Montemorelos. Los resultados muestran que la escala quedó integrada por 31 ítems agrupados en ocho factores que explican 62.7 % de la varianza total, con un KMO de .878 y un alfa de Cronbach de .875. El modelo de ecuaciones estructurales evidencia índices de bondad de ajuste aceptables del modelo educativo y el modelo de emprendimiento ((2 = 25.263, p = .089, CFI = .988, TLI = .980, NFI = .964, RMSEA =.038).

Abstract This study proposes the analysis of the comprehensive education proposal of Adventist institutions of higher education from the construction of a scale to measure participation in educational and entrepreneurship models based on physical, intellectual, spiritual dimensions, social, manual work, canvassing, voluntary service, and personal endeavors. The validation process was carried out with a sample of 345 students, of whom 44.1% are seniors’ students and 55.9% are graduates of the last 10 years of the University of Montemorelos. The results show that the scale was made up of 31 items grouped in eight factors explaining 62.7% of the total variance, with a KMO of .878 and a Cronbach's alpha of .875 were obtained. The structural equation model shows acceptable goodness-of-fit indices for the educational model and the entrepreneurship model ((2 = 25.263, p = .089, CFI = .988, TLI = .980, NFI = .964, RMSEA = 0.38).

Resumo Este estudo propõe a análise da proposta de educação integral das instituições adventistas de ensino superior a partir da construção de uma escala para mensurar a participação em modelos educacionais e empresariais com base no trabalho físico, intelectual, espiritual (moral), social, manual, colportagem universitária, voluntariado serviço e esforços pessoais. O processo de validação foi realizado com uma amostra de 345 alunos, dos quais 44,1% estavam no último ano e 55,9% se formaram nos últimos 10 anos pela Universidade de Montemorelos. Os resultados mostram que a escala foi composta por 31 itens agrupados em oito fatores que explicam 62,7% da variância total, com KMO de 0,878 e alfa de Cronbach de 0,875. O modelo de equação estrutural mostra índices aceitáveis de ajuste para o modelo educacional e o modelo de empreendedorismo (2 = 25,263, p = 0,089, CFI = 0,988, TLI = 0,980, NFI = 0,964, RMSEA = 0,038 ).

Background: Physical activity (PA) practice reduces the adverse effects of COVID-19. PA counseling promotes healthy lifestyles and prevents cardiometabolic diseases. Aim: To assess the trend in cases of PA counseling and the cardiometabolic disease between 2012 and 2019 (before COVID-19) in a southern Chilean region. Material and Methods: Records of Maule Region Health Service for 731.163 men, and 829.097 women aged < 10 to ≥ 65 years were analyzed. The average annual percentage change (AAPC) during the study period and the annual percentage change (APC) during intermediate periods, were calculated. Results: There was a significant decrease in PA counseling in women in the study period (AAPC: −13.6%). In the 2012-2017 period a significant decrease in counseling for total, men and women were observed (APC: −18.1, −16.5 and −19.1%, respectively). Obesity increased significantly in total, men and women in the 2012-2019 period (AAPC: 10.1, 8.5 and 10.7%, respectively). The same trend was observed for hypertension (AAPC: 8.1, 8.5 and 7.6% respectively) and elevated blood glucose (AAPC: 10, 11.5 and 9.6%, respectively). Conclusions: In the study period PA counseling decreased along with an increase in obesity, hypertension and high blood glucose. Increasing PA counseling is a mainstay in the prevention of cardiometabolic diseases and probably to prevent contagion and complement the treatment of COVID-19.

Resumen La neuroinmunología es una disciplina que cada vez amplía más sus horizontes en la comprensión de las enfermedades neurológicas. Contemporáneamente, y a la luz de los nexos fisiopatológicos de las enfermedades neurológicas y la inmunología, se han planteado enfoques diagnósticos y terapéuticos específicos. A pesar de los importantes avances de esta disciplina, existen múltiples dilemas que le conciernen y se filtran en la práctica clínica. En esta revisión, se presentan y discuten 15 controversias, las cuales se construyen con la información clínica disponible más actualizada. Los temas incluidos son: disminución de esteroides en recaídas de esclerosis múltiple; recomendaciones terapéuticas en esclerosis múltiple a la luz de la pandemia por el SARS-CoV-2; evidencia de vacunación en esclerosis múltiple y en otras enfermedades desmielinizantes; panorama actual del síndrome clínico y radiológico aislado; y fallas terapéuticas en esclerosis múltiple; además, criterios para suspender las terapias modificadoras de la enfermedad; evidencia del manejo en recaídas leves; recomendaciones para la profilaxis contra Strongyloides stercolaris; utilidad de un segundo ciclo de inmunoglobulina en el síndrome de Guillain-Barré; criterios para diferenciar una polineuropatía crónica desmielinizante inflamatoria de inicio agudo de un síndrome de Guillain-Barré y, utilidad de la enzima convertidora de angiotensina en neurosarcoidosis. En cada una de las controversias, se presenta la problemática general y se ofrecen recomendaciones específicas que pueden adoptarse en la práctica clínica diaria.

Abstract Neuroimmunology is a discipline that increasingly broadens its horizons in the understanding of neurological diseases. At the same time, and in front of the pathophysiological links of neurological diseases and immunology, specific diagnostic and therapeutic approaches have been proposed. Despite the important advances in this discipline, there are multiple dilemmas that concern and filter into clinical practice. This article presents 15 controversies and a discussion about them, which are built with the most up-to-date evidence available. The topics included in this review are: steroid decline in relapses of multiple sclerosis; therapeutic recommendations in MS in light of the SARS-CoV-2 pandemic; evidence of vaccination in multiple sclerosis and other demyelinating diseases; overview current situation of isolated clinical and radiological syndrome; therapeutic failure in multiple sclerosis, as well as criteria for suspension of disease-modifying therapies; evidence of the management of mild relapses in multiple sclerosis; recommendations for prophylaxis against Strongyloides stercolaris; usefulness of a second course of immunoglobulin in the Guillain-Barré syndrome; criteria to differentiate an acute-onset inflammatory demyelinating chronic polyneuropathy versus Guillain-Barré syndrome; and, the utility of angiotensin-converting enzyme in neurosarcoidosis. In each of the controversies, the general problem is presented, and specific recommendations are offered that can be adopted in daily clinical practice.

Background: Cardiorespiratory fitness (CRF) is inversely associated with metabolic diseases and adiposity markers. Aim: To assess the association of CRF with body mass index (BMI), waist circumference (WC) and obesity in a representative sample of the Chilean population. Material and Methods: Data from 5,958 participants in the Chilean National Health Survey 2016-1027 aged 15 years or above were analyzed. CRF was estimated by an equation that included sociodemographic, anthropometric and health-related data and expressed in metabolic equivalent units (METs). The association between CRF and adiposity was assessed using linear and Poisson regression models and the results were presented as Prevalence Ratio (PR). Results: One MET increment in CRF was associated with a 3.27 kg/m2 (95% confidence intervals (CI): -3.35; -3.2) and 4.56 kg/m2 (95% CI: -4.67; -4.46) lower BMI in men and women, respectively. Waist circumference was 6.7 cm [95% CI: -6.98; -6.42] and 9 cm [95% CI: -9.33; -8.67] lower per 1-MET increment in CRF. With one MET increment, the probability of being obese was 34% (PR = 0.66 [95%CI: 0.63; 0.69]) and 36% (PR = 0.64 [95%CI: 0.61; 0.67]) lower in men and women, respectively. The probability of having a central obesity was 26% (PR = 0.74 [95%CI: 0.71; 0.77]) and 30% (PR = 0.70 [95%CI: 0.68; 0.73]) lower in men and women, respectively. Conclusions: A higher estimated CRF was associated with lower adiposity levels and a lower risk of being obese in both men and women. Public health policies aiming to increase physical activity are needed to increase the CRF of the Chilean population.

ABSTRACT Introduction: Handgrip strength is a way to evaluate muscle weakness in older people and it has been seen to show a high correlation with general strength and body muscle mass, which is why it could help in the early detection of deterioration in physical function. loss of lower limb strength and risk of falls. Objective: To relate handgrip strength with physical function and risk of falls in older people. Methods: Descriptive, correlational study. It evaluated 87 older people (24 men and 63 women) between 65 and 75 years old, from 4 social organizations in the city of Talca, Chile, selected through a non-probabilistic convenience sampling. To measure the handgrip strength, a hand dynamometer was used, to assess physical function the Short Physical Performance Battery test was used, and the unipodal station and time up and go tests were used to evaluate balance static and dynamic respectively. Results: Moderately significant relationships were observed between the handgrip strength in the Short Physical Performance Battery test (p = 0.001; r = 0.473) and with all the tests that make up this battery. A moderate one was also evidenced between the grip strength and the unipodal station test (p = 0.001; r= 0.472), while the relationship with the time up and go test was weak inverse (p = 0.002; r = -0.398). Conclusion: There is a relationship between handgrip strength with physical function and the risk of falls in older people. This finding is important because it suggests that handgrip strength could be used in clinical practice as an indirect indicator or as an early detection tool for loss of general strength capacity, physical fitness, and risk of falls.

RESUMEN Introducción: La fuerza de prensión manual permite evaluar debilidad muscular en personas mayores y presenta correlación con la fuerza general y masa muscular, por lo que podría ayudar en la detección precoz del deterioro de la función física y riesgo de caídas. Objetivo: Relacionar la fuerza de prensión manual con la función física y riesgo de caídas en personas mayores. Métodos: Estudio descriptivo, correlacional. Evaluó 87 personas mayores (24 hombres y 63 mujeres) entre 65 y 75 años, de 4 organizaciones sociales de Talca, Chile, seleccionados por un muestreo no probabilístico por conveniencia. Para medir la fuerza de prensión manual se utilizó́ un dinamómetro de mano, para valorar la función física se usó la prueba Short Physical Performance Battery; con las pruebas de estación unipodal y time up and go se evaluó riesgo de caídas. Resultados: Se observaron relaciones significativas moderadas entre la fuerza de prensión manual y el test Short Physical Performance Battery (p= 0,001; r= 0,473) y con todas las pruebas que componen esta batería. Se evidenció una relación entre la fuerza de prensión y la prueba de estación unipodal (p= 0,001; r= 0,472), mientras que la relación con la prueba time up and go fue inversa débil (p= 0,002; r= -0,398). Conclusión: Existe relación entre la fuerza de prensión manual con la función física y el riesgo de caídas personas mayores. Este hallazgo sugiere que la fuerza de prensión manual podría usarse en la práctica clínica como instrumento de detección precoz de la pérdida de la función física y riesgo de caídas.

Abstract This paper aims to identify aspects of a teacher development program as perceived by university professors as useful for their development as teachers. The pedagogical-didactic training proposal consisted of a series of voluntary participation events that took place during an academic semester at a Mexican university. Using qualitative methodology, categories were generated from the analysis of two sources: immediate and written responses in which professors evaluated the aspects they considered useful in each training event they attended, and brief interviews conducted one month after the event. As a result, five categories are presented that enunciate the characteristics of the training events considered useful: they served to obtain practical ideas and theoretical support, they built a space for reflection and awareness, they helped to implement the subject matter under study during the event, and offered a place for exchanging knowledge, ideas and experiences with colleagues. These results are similar to those of studies carried out in North America, Europe, Asia and Nordic countries.

Resumo Este trabalho busca identificar aspectos de um programa de desenvolvimento docente percebidos por professores universitários como úteis para o seu crescimento docente. A proposta de formação pedagógico-didática consistiu em uma série de eventos de participação voluntaria desenvolvidos durante um semestre acadêmico em uma universidade mexicana. Mediante metodologia qualitativa, se geraram categorias a partir da análise de duas fontes: respostas imediatas e escritas nas que os professores avaliavam os aspectos que consideravam úteis de cada evento de formação ao que presenciaram, e breves entrevistas realizadas um mês depois do evento. Como resultado, se apresentam cinco categorias que enunciam as características dos eventos de formação consideradas úteis: obter ideias práticas, obter sustentação teórica, contar com espaço para a reflexão e toma de consciência, aplicar a temática em estudo durante o evento, e trocar conhecimentos, ideias e experiencias com colegas. Tais resultados têm semelhança com os de estudos realizados na América do Norte, Europa, Asia e países nórdicos.

Resumen Este trabajo busca identificar aspectos de un programa de desarrollo docente percibidos por profesores universitarios como útiles para su crecimiento docente. La propuesta de capacitación pedagógico-didáctica consistió en una serie de eventos de participación voluntaria desarrollados durante un semestre académico en una universidad mexicana. Mediante metodología cualitativa, se generaron categorías a partir del análisis de dos fuentes: respuestas inmediatas y escritas en las que los profesores evaluaban los aspectos que consideraban útiles de cada evento de capacitación al que asistieron, y breves entrevistas realizadas un mes después del evento. Como resultado, se presentan cinco categorías que enuncian las características de los eventos de capacitación consideradas útiles: obtener ideas prácticas, obtener sustento teórico, contar con espacio para la reflexión y toma de conciencia, aplicar la temática en estudio durante el evento, e intercambiar conocimientos, ideas y experiencias con colegas. Tales resultados tienen similitud con los de estudios realizados en Norteamérica, Europa, Asia y países nórdicos.

Resumen El sorgo [Sorghum bicolor (L.) Moench], es un cultivo cada vez más utilizado como forraje en México, por lo que es importante contar con genotipos con atributos favorables. Se evaluaron 12 cultivares de sorgos forrajeros (SF), etanoleros (SE) y súper sorgos (SS), bajo condiciones de riego en el Campo Experimental Bajío del Instituto Nacional de Investigaciones Forestales Agrícolas y Pecuarias en Celaya Guanajuato, México en el ciclo agrícola primavera-verano de 2018, con el objetivo de determinar y comparar su potencial agronómico. El análisis de varianza mostró diferencias altamente significativas entre los tratamientos evaluados, ésto permitió diferenciar los genotipos en tardíos (SE), intermedios (SS) y precoces (SF) con base a sus días a floración, mientras que en altura de planta, los SS superaron a los demás grupos. En longitud de hoja los SS y SE fueron estadísticamente similares; sin embargo, fueron superiores a los SF. En cuanto a producción de biomasa verde los SS y SF presentaron un rendimiento de 93.24 y 81.55 t ha-1 respectivamente y fueron superiores a los SE, los cuales obtuvieron en promedio 69.24 t ha-1. En el rendimiento de biomasa seca los SS fueron estadísticamente superiores a los demás grupos de sorgo con 20.89 t ha-1. En cuanto a la producción de azucares, aunque fue bajo el mejor material fue SS-02 con 11.52 oBrix. Los súper sorgos superaron a los sorgos etanoleros en la mayoría de las variables evaluadas

Summary Sorghum [Sorghum bicolor (L.) Moench] is a crop increasingly used as forage in Mexico; thus, it is important to have genotypes with favorable attributes. Twelve cultivars of forage sorghum (FS), ethanol (ES) and super sorghum (SS) were evaluated under irrigated conditions at the Bajio Experiment Station of the National Institute of Forestry, Agriculture and Livestock Research in Celaya Guanajuato, Mexico in the Spring-Summer agricultural cycle of 2018, with the aim of determining and comparing their agronomic potential. The analysis of variance showed highly significant differences between the evaluated treatments, which allowed differentiating the genotypes into late (ES), intermediate (SS) and early (FS) based on their days to flowering, while in plant height the SS outperformed the other groups. In leaf length, SS and ES were statistically similar between them, but they were superior to FS. Regarding green biomass production, SS and FS produced a yield of 93.24 and 81.55 t ha-1 respectively and were higher than ES, which produced an average of 69.24 t ha-1. In dry biomass yield the SS were statistically superior to the other groups of sorghum with 20.89 t ha-1. Regarding sugar production, although it was low, the best material was SS-02 with 11.52 oBrix. Super sorghums outperformed ethanol sorghums in most of the variables evaluated.

Background: The Chilean population reports high levels of physical inactivity. The relationship between income level, physical activity (PA) and sedentary behaviors is not well known. Aim: To describe the levels of PA and sedentary time, according to income levels in the Chilean population. Material and Methods: Analysis of data from the Chilean National Health Survey 2016-2017, which included 5,130 participants (52.9% women). The levels of PA and sedentary time were measured by the Global Physical Activity Questionnaire. Income levels were established according to the self-reported income per capita of the households and presented as quintiles. PA levels according to income levels were estimated by linear regression analyses. Results: Transport-related PA was higher in the lowest income quintiles (p = 0.039). There were no trends for income levels and PA domains including moderate, vigorous, total, occupational and leisure PA. The prevalence of leisure and occupational physical inactivities were higher in the lowest quintiles of income. Sitting time was higher in the higher income levels (p < 0.01). Conclusions: People in the lowest quintile for income spent more time in transport-related PA and less time sitting. However, physical inactivity prevalence during leisure and work time were higher in people with lower income.

ABSTRACT Introduction: Patients who died from COVID-19 at the beginning of the pandemic show particular clinical-epidemiological characteristics and their identification as well as the aspects associated with the diagnosis are fundamental for the implementation of public health strategies that allow the sanitary protection of the most vulnerable groups. Objective: To determine the clinical-epidemiological characteristics of patients who died from COVID-19 and its association with late diagnosis in the early stages of the pandemic in the department of Bolívar-Colombia. Material and Methods: Descriptive cross-sectional study with a sample of 51 patients who died from COVID-19; the relative frequency of the clinical-epidemiological risk factors of these patients was calculated and a bivariate analysis was performed to show the association with the possibility of being diagnosed after death, using the disparity ratio (OR) with its confidence interval. Results: The 47,2 % of the diagnoses were made after death; the average between the onset of symptoms and death was approximately 13 days, in which heart disease (58,5 %) and hypertension (35,8 %) were evidenced as important comorbidities. The association with diagnosis after death is related to the cases reported in April and May (p = 0.03), being older than 80 years (p = 0.03) and having malnutrition (p = 0.04). Conclusion: In the context of the department of Bolívar, failures are observed in the timely diagnosis of some vulnerable population groups, thus special attention should be paid to patients with heart disease to avoid high mortality.

RESUMEN Introducción: Los pacientes fallecidos por COVID-19 al inicio de la pandemia evidencian características clínico-epidemiológicas particulares y su identificación, lo mismo que los aspectos asociados a su diagnóstico son fundamentales para la implementación de estrategias en salud pública que permitan la protección sanitaria de los grupos más vulnerables. Objetivo: Determinar las características clínico epidemiológicas de los pacientes fallecidos por COVID-19 y su asociación con el diagnóstico tardío en las primeras etapas de la pandemia en el departamento de Bolívar-Colombia. Materiales y Métodos: Estudio descriptivo de corte transversal con una muestra de 51 pacientes fallecidos por COVID-19; se calculó la frecuencia relativa de los factores de riesgo clínico epidemiológicos de estos pacientes y se realizó un análisis bivariado para evidenciar la asociación con la posibilidad de ser diagnosticado después de la muerte, usando la razón de disparidad (OR) con su intervalo de confianza Resultados: El 47,2 % de los diagnósticos se hicieron después de la muerte; el promedio entre el inicio de los síntomas y la muerte fue aproximadamente 13 días, en los que se evidencia como comorbilidades importantes las enfermedades cardíacas (58,5 %) y la hipertensión (35,8 %). La asociación con el diagnóstico después de la muerte se relaciona con los casos notificados en abril y mayo (p=0,03), ser mayor de 80 años (p=0,03) y tener malnutrición (p=0,04). Conclusión: En el contexto del departamento de Bolívar se observan fallas en el diagnóstico oportuno de algunos grupos poblacionales vulnerables y a los pacientes con enfermedades cardíacas se debe prestar atención para evitar la alta mortalidad.