Search results for "Sports"
showing 10 items of 4839 documents
Anti-Hypotensive Treatment and Endothelin Blockade Synergistically Antagonize Exercise Fatigue in Rats under Simulated High Altitude
2013
Rapid ascent to high altitude causes illness and fatigue, and there is a demand for effective acute treatments to alleviate such effects. We hypothesized that increased oxygen delivery to the tissue using a combination of a hypertensive agent and an endothelin receptor A antagonist drugs would limit exercise-induced fatigue at simulated high altitude. Our data showed that the combination of 0.1 mg/kg ambrisentan with either 20 mg/kg ephedrine or 10 mg/kg methylphenidate significantly improved exercise duration in rats at simulated altitude of 4,267 m, whereas the individual compounds did not. In normoxic, anesthetized rats, ephedrine alone and in combination with ambrisentan increased heart…
Cross-Cultural Validity of the Physical Self-Description Questionnaire: Comparison of Factor Structures in Australia, Spain, and Turkey
2002
Abstract We evaluated the cross-cultural generalizability of the factor structure for the Physical Self-Description Questionnaire (PSDQ) using confirmatory factor analysis. The factor structure was reasonably invariant over large samples of responses by Australian, Spanish, and Turkish students. Consistent with a priori predictions, the factor structures based on Australian and Spanish high school students were somewhat more similar to each other than to those based on Turkish university students, but these differences were small. Psychometric, theoretical, cross-cultural, and practical considerations support the PSDQ's usefulness in a variety of research and applied settings. The study als…
Physical Activity of Children With and Without Long-Term Illness or Disability
2011
Background:We know very little about physical activity in children with long-term illness or disability compared with those children without disabilities. Previous studies indicate low physical activity levels among all adolescents.Methods:The sample consisted of Canadian (n = 2720) and Finnish pupils (n = 3459) approximately 13.5 and 15.5 years of age in general (mainstreamed) education. The study is a part of the Health Behavior in School-aged Children (HBSC) study. Nationally representative data were collected in 2002 using a standardized questionnaire. The moderate-to-vigorous intensity physical activity screening measure was used.Results:Approximately one-fifth of the pupils in both co…
Comparison of motor competence in children aged 6-9 years across northern, central, and southern European regions.
2019
The present study aimed at examining differences in motor competence (MC) in children aged 6 to 9 years old in northern, central, and southern European regions using the Körperkoordinationstest für Kinder (KTK). The secondary aim of the study was to examine interactions between region and children's age, sex and weight status (determined as healthy weight or overweight/obese). Data was pooled from independent studies conducted in Finland (mean age 7.81 ± 1.19 years, n = 690), Belgium (mean age 8.25 ± 1.09 years, n = 1,896) and Portugal (mean age 8.31 ± 1.02 years, n = 758) between 2008 and 2016. Cross-cultural differences in MC and interaction effects were tested using ANOVAs and ANCOVAs. A…
Psychometric properties of the French translation of the reduced KOOS and HOOS (KOOS-PS and HOOS-PS).
2009
Udgivelsesdato: 2009-Dec OBJECTIVE: To evaluate the psychometric properties of the French KOOS physical function (KOOS-PS) and HOOS physical function (HOOS-PS), specifically its feasibility, reliability, construct validity, and responsiveness. METHODS: Consecutive outpatients consulting for primary knee or hip osteoarthritis (OA) in a rheumatology department were included. During the initial assessment, patients were asked to complete the Knee injury and Osteoarthritis Outcome Score (KOOS) or Hip disability and Osteoarthritis Outcome Score (HOOS) questionnaire and the OsteoArthritis Knee and Hip Quality Of Life questionnaire (OAKHQOL). The patients were given a second KOOS or HOOS questionn…
Objectively Measured School Day Physical Activity Among Elementary Students in the United States and Finland.
2015
Background:Schools are in a unique position to ensure that all students meet the current physical activity (PA) recommendations. This study aimed to examine 1st to 3rd grade elementary students’ accelerometer measured school day PA in the United States (U.S.) and Finland.Methods:The sample consisted of 200 students (107 girls, 93 boys; ages 6 to 8) and their school day PA was monitored with hip-worn ActiGraph GT3X+ accelerometers across a 5-day school week and the thresholds 100 and 2296 count per minute were used to separate sedentary time, light PA, and moderate-to-vigorous PA (MVPA).Results:On an average school day, students were engaged in MVPA for 20.0 min in the U.S. and 24.1 min in F…
Effects of different hydration supports on stride kinematics, comfort, and impact accelerations during running.
2022
Background: Different supports for hydration can influence total body mass and affect running biomechanics. Research question: Do different hydration supports affect the perceived exertion and comfort, stride kinematics, and impact accelerations during running?. Methods: This was a crossover study design. Thirteen trail runners completed a treadmill running test divided into four different durations and randomized hydration supports conditions, lasting 8 min each at moderate intensity: A) waist bag (0.84 kg); B) medium load backpack (0.84 kg); C) full load backpack (3.40 kg); and D) a control condition without water support. Impact accelerations were measured for 30 s in 4, 6, and 8 min. Th…
Older women's personal goals and exercise activity: an 8-year follow-up.
2013
This study investigated the associations of personal goals with exercise activity, as well as the relationships between exercise-related and other personal goals, among older women. Both cross-sectional and longitudinal designs were used with a sample of 308 women ages 66–79 at baseline. Women who reported exercise-related personal goals were 4 times as likely to report high exercise activity at baseline than those who did not report exercise-related goals. Longitudinal results were parallel. Goals related to cultural activities, as well as to busying oneself around the home, coincided with exercise-related goals, whereas goals related to own and other people’s health and independent living…
Validation of Oxygen Consumption Prediction Equations and New Formulas for Interval Training
2021
[EN] Objectives. Our aims were to determine whether there is any significant difference between the measured and estimated energy expenditure for the most commonly used prediction equations in the literature, and to develop a new specific prediction equation for aerobic interval training with a broader cross-section of the population in terms of age, fitness and body mass index (BMI). Methods. Twenty healthy participants were recruited for this study. Two groups of ten people were established depending on their BMI. The low BMI group ranged between 19 and 22, and the high BMI group between 26 and 29. The test protocol consisted of 12 individualized intensities, 6 walking and 6 running speed…
Process performance facing the inclusion of students with disabilities in the area of physical education (PAIADEF)
2013
El objetivo del presente estudio fue establecer el procedimiento de actuación del profesorado ante la detección de una necesidad educativa específica en el área de educación física. Para ello se diseñó una investigación basada en el método Delphi, concretamente de tres rondas, en el que intervinieron un primer grupo de 5 docentes universitarios con un elevado grado de conocimiento teórico sobre la inclusión de alumnado con discapacidad en el área de educación física, y un segundo grupo de 11 docentes con experiencia práctica en dicha área y con alumnado con discapacidad en el aula. Sus aportaciones permitieron concluir el estudio con el diseño definitivo del Procedimiento de actuación ante …