Papel del entorno escolar en la transición a conductas activas en niños de primaria

El objetivo de este trabajo fue evaluar el papel del entorno escolar en el estadio o la etapa hacia la adopción de una conducta activa en la población de niños de 10,11 y 12 años de la ciudad de León Guanajuato. Material y métodos: Participaron 93 niños, 39 Mujeres y 54 hombres con edad promedio de11±0.7 años, se entrevistaron para evaluar el nivel de actividad física, entorno escolar y actitud ante la actividad física. Los puntajes del entorno escolar se obtuvieron bajo tres criterios: estimulación, infraestructura y nivel socioeconómico y clasificaron al entorno escolar en medio ambiente, adverso, regular y aceptable. La actitud se midió utilizando el Modelo Transteórico. Se utilizó estadística correlativa, descriptiva e inferencial y análisis de residuos de particiones, α = 0.05 Resultados: Se observó una prevalencia de sedentarismo del 43%. La actividad física escolar no alcanza los criterios de frecuencia e intensidad requeridos (Strong, 2005). El medio ambiente escolar que prevaleció fue el regular (58% de alumnos). En las niñas el medio ambiente adverso fue significativamente asociado con un estado de contemplación, (p>0.05). La actitud que prevalece en los escolares, es la preparación para la acción, (P>0.05). Conclusión: El papel del entorno escolar en la transición a conductas activas en niños de primaria evaluados es ilusorio ya que a pesar de la oportunidad que representa la estancia en la escuela. Esta no ha sido debidamente aprovechada. Afectando principalmente a las niñas de nivel socioeconómico bajo

Su Sueño/Su Vida: training manual for promotores.

Knowledge concerning the importance of good sleep health is lacking in the general population, but particularly among Hispanics. “Promotores” are Spanish speaking health care workers in Hispanic communities who act to help their neighbors access health care and social services, and educate their peers about disease and injury prevention. The attached files are a training manual which can be used to teach promotores and other health care workers about the importance of good sleep health, the diagnosis and treatment of common sleep disorders and some “tips” to improve sleep. It is presented in an appropriate cultural context, and has been tested for its usefulness in a group of promotores

Apocynin Attenuates Diabetes-Induced Skeletal Muscle Dysfunction by Mitigating ROS Generation and Boosting Antioxidant Defenses in Fast-Twitch and Slow-Twitch Muscles

In response to diabetes mellitus, skeletal muscle is negatively affected, as is evident by reduced contractile force production, increased muscle fatigability, and increased levels of oxidative stress biomarkers. Apocynin is a widely used NADPH oxidase inhibitor, with antioxidant and anti-inflammatory potential. It has been effective for amelioration of a variety of disorders, including diabetic complications. Therefore, the present study was conducted to evaluate the effects and action mechanisms of apocynin in slow- and fast-twitch diabetic rat muscles. Male Wistar rats were rendered diabetic by applying intraperitoneally a single dose of streptozotocin (45 mg/kg). Apocynin treatment (3 mg/kg/day) was administered over 8 weeks. Fasting blood glucose (FBG), insulin tolerance and body weight gain were measured. Both slow (soleus) and fast (extensor digitorum longus, EDL) skeletal muscles were used for muscle function evaluation, oxidative stress markers, and evaluating gene expression using qRT-PCR. Treatment with apocynin significantly reduced FBG levels and enhanced insulin tolerance. Apocynin also prevented muscle contractile dysfunction in EDL muscle but had no significant effect on this parameter in soleus muscles. However, in both types of muscles, apocynin mitigated the oxidative stress by decreasing ROS levels and increasing total glutathione levels and redox state. Concomitantly, apocynin also statistically enhanced Nrf-2 and GLU4 mRNA expression and downregulated NOX2, NOX4, and NF-κB mRNA. Collectively, apocynin exhibits properties myoprotective in diabetic animals. These findings indicate that apocynin predominantly acts as an antioxidant in fast-twitch and slow-twitch muscles but has differential impact on contractile function