Search results for "Activity"
showing 10 items of 7178 documents
Inhibition of Saccharomyces cerevisiae Pdr5p by a natural compound extracted from Brazilian Red Propolis
2011
Multidrug resistance of cancer cells and pathogenic microorganisms leading to the treatment failure of some forms of cancer or life-threatening bacterial or fungal infections is often caused by the overexpression of multidrug efflux pumps belonging to the ATP-binding cassette transporters superfamily. The multidrug resistance of fungal cells often involves the overexpression of efflux pumps belonging to the pleiotropic drug resistance (PDR) family of ABC transporters. Possibly the best-studied fungal PDR transporter is the multidrug resistance transporter Pdr5p of Saccharomyces cerevisiae. Some research groups have been searching for new inhibitors of these efflux pumps in order to alleviat…
Recycling of almond by-products for intestinal inflammation: improvement of physical-chemical, technological and biological characteristics of a drie…
2020
Background: Almond skins are rich in bioactive compounds that undergo oxidation/degradation phenomena and are poorly soluble in water, reducing in vivo absorption and bioavailability, factors that influence the pharmacological activity of an active product. We developed a dried acetonic almond skins extract/cyclodextrin complex to improve extract solubility, dissolution rate and biological activity. Methods: A lyophilized acetonic almond skin extract was produced. To optimize complex formulation, phase solubility studies and complex characterization (absorption studies, differential scanning calorimetry (DSC), morphology, solubility studies) were performed. To evaluate a possible use in hea…
The responsibilities of extra familial care institutions’ children as important personality characteristics development process
2014
The questions about how and in which living activity areas the responsibility of extra familial care institutions’ children as important personality characteristic is developed, in this paper are investigated. Responsibility category includes the problem of philosophy and sociology – the extent of which a person is able and can be the subject (the author) of his activity, as well as specific questions: the ability of the person knowingly (intentionally, voluntarily) to execute determined requirements and to perform specified tasks; to make certain choice; to achieve determined results, as well as to solve the issues. The concept of responsibility is described in various scientific papers. E…
Physical activity, nutrition, and bone health
2018
This review aims to describe the roles that physical activity and nutrition have in bone metabolism and to examine their effects on bone in a situation of altered metabolism as a consequence of inadequate nutrition and/or excessive physical activity. Referring to the recent studies and the main guidelines in the literature on athlete nutrition, the paper also focuses on essential nutrients for bone health during performance. Finally, it discusses the negative effect of some nutrients on bone mineral density.
El sexo, el contexto familiar y la actividad física extraescolar como factores asociados a la coordinación motriz en la niñez. Un estudio piloto. [Ge…
2019
Existen diversos factores que determinan el desarrollo y la evolución de la coordinación motriz. El presente estudio tiene por objetivo analizar la influencia del sexo, la actividad física practicada por los padres, la existencia de hermanos/as mayores o de igual edad y la práctica de actividad física extraescolar sobre el nivel de coordinación motriz global. La muestra estuvo compuesta por 23 niñas y 32 niños de entre 8-9 años (M = 8,51; DT = 0,31), pertenecientes al tercer curso de Educación Primaria. El nivel de coordinación motriz global de los estudiantes se valoró a través del Test Motor GRAMI-2 (Ruiz, Rioja, Graupera, Palomo, y García, 2015). El análisis de regresión lineal múltiple …
Could Low-Frequency Electromyostimulation Training be an Effective Alternative to Endurance Training? An Overview in One Adult
2014
This preliminary study aimed to investigate the effects of a six-week low-frequency electromyostimulation training (10Hz) on the cardiovascular, respiratory and muscular systems. To that purpose, aerobic capacity, knee extensor muscles strength and architecture, muscle sympathetic nervous activity, blood pressure and heart rate have been evaluated in one healthy male subject (33 year-old, 1.73 m, 73 kg). Results showed improvement of aerobic capacity (+4.5% and +11.5% for maximal oxygen uptake and ventilatory threshold) and muscle strength (+11% and +16% for voluntary and evoked force). Moreover, for the first time, this study demonstrated low-frequency training effects on muscle architectu…
Comparing the physical activity patterns of 3-year-old Finnish and Australian children during childcare and homecare days
2014
AbstractLimited previous research has contrasted physical activity (PA) patterns in preschool children across different hourly patterns or segments of day, or adopted similar methodologies to compare the PA behaviors of children from different countries. The purpose of this study was to examine how the PA levels and patterns differed between 3- year-olds within and between childcare and homecare days in Finland and Australia.ActiGraph GT3X accelerometers were used to monitor 121 (80 Finnish, 41 Australian) children’s PA for five consecutive days.No significant country differences were observed in children’s daily total PA (light-tovigorous PA [LMVPA]), except that during childcare days Finn…
Device-Based Measures of Sedentary Time and Physical Activity Are Associated With Physical Fitness and Body Fat Content
2020
Introduction/Purpose: Physical activity and sedentary time may associate with physical fitness and body composition. Yet, there exists some observational studies that have investigated the associations of device-based measures of sedentary time and physical activity (PA) with cardiorespiratory fitness (CRF) and body composition but associations with muscular fitness (MF) are less studied.Methods: Objective sedentary time and physical activity was measured by a hip worn accelerometer from 415 young adult men (age: mean 26, standard deviation 7 years). Cardiorespiratory fitness (VO2max) (CRF) was determined using a graded cycle ergometer test until exhaustion. Maximal force of lower extremiti…
El pensamiento del alumnado inactivo sobre sus experiencias negativas en educación física: los discursos del rendimiento, salutismo y masculinidad he…
2019
El propósito de este estudio es el análisis del pensamiento de los estudiantes inactivos sobre sus experiencias negativas en educación física y los discursos sociales asociados a ellas. Siete estudiantes de Bachillerato, cuatro chicos y tres chicas, clasificados como inactivos en una fase de investigación cuantitativa previa, participaron en entrevistas semiestructuradas. Cuatro temas resultaron del análisis temático de las experiencias negativas contadas por el alumnado. El primero mostraba cómo los estudiantes inactivos sufren las consecuencias de unas clases y evaluación orientadas por el profesorado hacia el rendimiento físico, especialmente los chicos obesos y las chicas con baja compe…
Students’ physical activity intensity and sedentary behaviour by physical self-concept profiles: A latent profile analysis. [Intensidad de la activid…
2020
Abstract Aims of this study were to identify student clusters in physical appearance, sport competence, global physical self-concept and self-esteem, and to examine whether different physical self-concept groups differ in their moderate-to-vigorous physical activity (MVPA) and sedentary behaviour. Participants of the study were 211 boys and 183 girls aged 13-16 years. MVPA and sedentary behaviour were monitored by GT3X accelerometers during seven days. Participants’ physical self-concept was measured by the short Physical Self-Description Questionnaire. Latent profile analyses revealed a four-cluster solution: 1) “low sport competence, moderate global physical self-concept and self-esteem, …