Repositorio Institucional de la Universidad Viña del Mar
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Efecto agudo de una sesión de yoga de corta duración en el nivel de estrés en escolares
No full textEl objetivo del presente estudio fue determinar el efecto agudo de una sesión de yoga en el nivel de estrés cotidiano en escolares. Participaron 21 escolares chilenos de 11,62 ± 0,50 años, los cuales fueron divididos en dos grupos (Grupo Experimental [GE]= 8; Grupo Control [GC]= 13). Se aplicó una sesión de yoga de 25 minutos de duración en el grupo experimental, mientras que el grupo control participó de una clase teórica en conducta sedentaria. El nivel de estrés se midió antes y despúes de la intervención con el Test Inventario de Estrés Cotidiano Infantil (IECI). Se utilizó la prueba de Shapiro Wilk para determinar la normalidad de los datos. La prueba t-Student para muestras relacionadas fue utilizada para comparar los efectos de la sesión previo y posterior a la intervención en el mismo grupo, mientras que la prueba t- Student para muestras independientes se usó para comparar los efectos entre los grupos experimental y control. Además, se usó la d de Cohen para para determinar el tamaño del efecto. El nivel de significancia se estableció en p<0,05. Se observó una disminución del nivel total de estrés cotidiano con un efecto moderado en el grupo experimental posterior a la intervención (Pre=16,25 ± 3,05; Post= 10,75 ± 4,74; p=0,005; TE= 0,57), mientras que en el grupo control no se encontraron efectos significativos post intervención (Pre=13,46 ± 5,57; Post=13,3 ± 5,55; p=0,337; TE=0,01). Se concluye que una sesión de yoga de corta duración puede proporcionar una disminución en los niveles de estrés en escolares
Social, Economic and Human Capital: Risk or Protective Factors in Sexual Violence?
No full textIn Chile, studies on protective factors and risk factors for sexual violence are limited and very few have incorporated analysis of different types of capital (social, economic, human) as social resources in the protection against sexual violence. The objective of this research is to evaluate to what extent the stock of different capitals act together, as either protective or risk factors in sexual violence in different interpersonal environments. The sample consisted of 1665 women between 15 and 30 years of age (M = 23.47, SD = 4.41). Artificial neural network analysis and social network analysis were used. The nodes representative of human and economic capital have a protective role of low relevance due to their position in the network, while the nodes of social capital acquire a structural relevance due to the central positions of the network. It is concluded that the structural social capital of neighborhood networks constitutes the main protective factor for sexual violence in all areas, and in turn, the structural social capital of networks with non-significant others was the main risk factor in sexual victimization
Effectiveness of Adapted Taekwondo, Multi-Component Training and Walking Exercise on Health Status in Independent OlderWomen: Study Protocol for a Randomized Controlled Trial (TKD & Aging Project)
No full textThis study protocol aims to analyze and compare the effects of an adapted taekwondo program with respect to multi-component training and walking exercise on health status in independent older women. Secondarily, we analyze the variability of the inter-individual response and compare it according to the designated training system. The sample will consist of 64 women between 60 and 65 years, randomly assigned to experimental group 1 (n = 16; adapted taekwondo), experimental group 2 (n = 16; multi-component training), experimental group 3 (n = 16, walking exercise) or control group (n = 16; no intervention). The experimental groups will perform the designated training for three sessions (60 min per session) per week over 16-weeks, while the control group will not receive any treatment. The main outcome will provide information about (i) blood pressure, (ii) lipid profile, (iii) frequency of food consumption, (iv) body composition, (v) cognitive status, (vi) brain activity, (vii) health-related quality of life (HRQoL) and (viii) physical-functional fitness. Our hypothesis indicates that adapted taekwondo produces more significant effects and greater inter-individual responses in cognitive status, brain activity, HRQoL, and postural balance than the others training methods. If this intervention proves effective, it could be an alternative for older women
Taekwondo regional marcó presencia en concentrado nacional
No full textDos atletas regionales que forman parte del equipo de taekwondo, del Programa Promesas Chile del Instituto Nacional del Deporte, fueron considerados por la federación chilenas de este deporte, para integrar los seleccionados nacionales que, deberán competir durante el año, en una serie de torneos continentales. Lo anterior, luego de que la semana pasada, se desarrollara en Viña del Mar, un concentrado nacional y la preparación competitiva de la Selección Nacional Juvenil de Taecon proyección a eventos internacionale
One Health: Concepto postula que salud animal, humana y del ecosistema son dependientes entre sí
No full textSi se remonta a los tiempos de Hipócrates (460 A.C.– 370 A.C), se encontrarán que en sus escritos sobre salud pública hace mención sobre la importancia de un entorno limpio, con buenos aires y aguas limpias, también se refiere a la calidad del terreno. Todo ello en relación con los asentamientos humanos. Además, se refiere a lo que hoy se conoce como estilos de vida, abordando temas tales como el consumo de alcohol, la actividad física y la ocupación de los habitantes
Surface electromyography in ballistic movement: a comparative methodological analysis from taekwondo athletes
No full textSurface electromyography (sEMG) signal processing methods used to assess combat sports are heterogeneous.
This research aims to compare the electromyography peak (peak EMG) in taekwondo athletes with five processing methods.
Secondarily, the coefficient of variation (CV) and the noise percentage regarding the peak EMG (NPRP) were compared. The
sEMG record of eight leg muscles of sixteen athletes (12 male and 4 female, ages 20.31+4.1 years) was consulted. The
processing methods were: a) Smoothing 1, b) Smoothing 2, c) Root mean square (RMS) 1, d) RMS 2, and e) Empirical mode
decomposition (EMD). Results indicate that the peak EMG differs among Smoothing 1 vs. EMD; Smoothing 2 vs. EMD;
Smoothing 1 vs. RMS 2; Smoothing 2 vs. RMS 2; Smoothing 1 vs. RMS 1; RMS 1 vs. RMS 2; RMS 1 vs. EMD, and RMS 2 vs.
EMD. For all cases p<.05 in seven of the eight muscles studied. No differences were found for the CV. The EMD NPRP was
lower than the other methods analyzed (p<.05). As a conclusion, there are differences among the studied methods and
should be considered when interpreting the peak EMG. The EMD seems to be a useful alternative for reducing noise and
artifact movement
Inflación y guerra: expertos anticipan complejo escenario
No full textAcadémicos de la zona remarcan los efectos que pueden tener los factores externos en un contexto ya complejo debido a la pandemia
Alumnos de Liceo Agrícola de La Cruz aprendieron sobre tecnologías de riego
No full textLa actividad fue liderada por el INIA y contó con la participación de varios establecimientos educacionales de la región LA CRUZ. - Unas 500 personas en la Región de Valparaíso se capacitaron en tecnologías de riego, de las cuales 330 fueron alumnos y docentes de distintos establecimientos educacionales
Psychological, Physiological, and Physical Effects of Resistance Training and Personalized Diet in Celiac Women
No full textBackground: Gluten intolerance is a systemic process of autoimmune nature; it develops in genetically predisposed subjects with gluten ingestion. The only treatment for celiac disease (CD) is a lifelong strict gluten-free diet (GFD). This study was designed to evaluate adherence to a GFD, risk of an eating disorder, and nutritional status in adult CD patients undergoing different interventions.
Methods: A total of 28 Spanish women, aged 40 years or more, took part in a randomized controlled trial. Each group received a different intervention: group 1, gluten-free nutrition plan + exercise (GFD + E); group 2, gluten-free nutrition plan (GFD); group 3, celiac controls (NO-GFD); and group 4, non-celiac controls (CONTROL). The training was prescribed by a sport scientist. It was based on resistance training with elastic bands; beforehand a warm-up was performed and the resistance was increased progressively. The variables studied were adherence to the GFD, risk of eating disorders, blood values, and body composition.
Results: Celiac women with personalized nutritional planning presented greater adherence to a gluten-free diet (p < 0.001). Regarding leukocytes, significant differences were observed between the GFD and control groups (p = 0.004). Perimeters and folds did not decrease significantly.
Conclusion: Women with celiac disease who follow an adapted and personalized diet have a better adherence to a GFD compared to those who follow a non-professional diet, and therefore have a better immune system status (blood leukocytes)
Libro Escuela de Comunicaciones UVM se presenta en la 40° Feria del Libro
No full textLa producción, publicada por la editorial de la Universidad Viña del Mar, formará parte del espacio literario. “Narrativas desde el periodismo científico. La obra del profesor y cronista Eduardo Reyes Frías", es la creación de la Escuela de Comunicaciones de la Universidad Viña del Mar (UVM), la que será presentada mañana martes 18 de enero, a las 19:00 hrs., en la Feria del Libro de la Ciudad Jardín