View clinical trials related to Sedentary Lifestyle.
Filter by:The purpose of this study is to: 1. Evaluate the relative efficacy of a treadmill desk intervention on light physical activity and sitting behaviors at work over four weeks; 2. Evaluate the relative efficacy of a treadmill desk intervention on the cardiovascular risk profiles (blood pressure, body weight, body fat percentage) over a four-week period.
Implementation of a previously shown (cost-)effective physical therapeutic treatment strategy for community-dwelling older adults.
The goal of this research is to develop and test a technology-supported intervention to reduce sedentary behavior before and after cancer surgery. Surgical oncology patients are at elevated risk for postoperative complications and readmissions. Sedentary behavior increases markedly after surgery and hospitalization, and reducing sedentary behavior around the time of cancer surgery could reduce risk while also empowering cancer patients to take a more active role in their recovery.
Cardiovascular Diseases (CVDs) are the leading causes of death in the world and in Brazil. In 2001, 12.45 million deaths on the globe (21% of the total) were caused by some CVD. The composition of modern man's diet has changed drastically with the industrialization of food, resulting in the transition from a diet rich in fibers and complex carbohydrates to one with a high content of sugars and fats. Since the current dietary pattern is characterized by the consumption of three or more meals a day, containing a quantity of fat in the range of 20 to 70 g, individuals spend a large part of the day in the postprandial state, with continuous fluctuation of lipemia Over 18 hours. Food intake (postprandial state) is the dynamic, unstable response of the body that refers to rapid hormonal and lipoprotein remodeling. It is well established in the literature that high-fat meals (lipid overload) cause an increase in plasma triglycerides. Hypertriglyceridemia and / or elevated triglyceride-rich lipoproteins (LRT) (chylomicrons, VLDL and their remnants) in the postprandial state induces endothelial dysfunction via increased oxidative stress and is an independent risk factor for CVDs. Therefore, Postprandial Lipemia (PPL) is counted as an early marker of atherosclerotic process, metabolic abnormalities and endothelial dysfunction. High-carbohydrate (CHO) diets may promote increased LDL-c, TG, VLDL and HDL-c reduction, as well as PPL, generating a lipid profile associated with an increased risk of CVDs. This effect appears to be more pronounced with the inclusion of simple carbohydrates (mono and disaccharides), although it also occurs with diets rich in complex carbohydrates (polysaccharides). High fructose diets (HFDs) are a known model of induction of insulin resistance, dyslipidemia and DM2 in primates and humans. The chronic effect of fructose consumption has been well studied in the last decades due to its connection with obesity, resistance to Insulin, accumulation of visceral fat and dyslipidemia. As the consumption of fructose is progressively increasing in society and its chronic exposure can generate a phenotypic effect of dyslipidemia and, consequently, the increased risk of CVDs, prevention and treatment strategies should be seen as an important public health issue . Thus, the objective of this study is to understand the effects of exercise on fat metabolism, since there is a lack of robust evidence about the possible cardioprotective and hypolipemic role of the same on HFD.
Overview- In this study, overweight or obese, sedentary participants (age=35-55 years, n=20) will be randomized to a 12-week control period or an aerobic exercise intervention. Those randomized into the control group will then complete the exercise intervention subsequently. The planned energy expenditure per week of exercise will be 10-12 kilocalories per kilogram of body weight per week. Participants will complete three non-consecutive exercise sessions per week. Body weight, resting metabolic rate via indirect calorimetry, peak oxygen consumption (VO2peak) through graded exercise testing, fasting blood samples, CGM, sleep and dietary habits via self-report, and physical activity monitoring will be completed at prior to and following the aerobic exercise intervention.
The goal of this study is to quantify energy metabolism using indirect calorimetry at rest, in the presence of excess energy following a meal, and in response to the demand for energy during exercise. The investigators also will examine the individual and joint associations of activity and obesity status on neurocognitive domains of appetite control. Participants will include adolescent males and females (N=80) using a 2 x 2 cross-sectional study design, stratified by body weight (normal vs overweight/obese) and physical activity level (sedentary vs. active).
This study is a randomized crossover trial to compare the effectiveness of interrupting SB on glucose homeostasis in the lab and free-living settings. All participants (N=56) will complete one screening visit to determine eligibility, complete at fitness test, and body composition analysis by bioelectrical impedance. After 7-21 days, all participants will complete two 3-hour in-lab oral glucose tolerance tests (spaced 7-21 days apart). Prior to the in-lab OGTT visits, participants will wear an activity monitor for 7 days on the right thigh. The experimental conditions for the OGTTs will be: 1) 3-hour OGTT of continuous sitting; and 2) 3-hour OGTT with sitting interrupted every 30 minutes with 3-minutes of moderate intensity walking on a treadmill. There will be a 7-21 day washout period between the OGTT visits. In addition, a subset of participants (N=12) who meet inclusion criteria and who successfully complete both OGTT visits will complete a second randomized crossover trial in the free-living environment. The experimental conditions for the free-living components will be: 1) 4 days of habitual sedentary behaviors; and 2) 4 days of prompted short exercise breaks during times in which sedentary behaviors have exceeded 30 minutes. Participants in the free-living trial will wear an activity monitor and a continuous glucose monitor.
Background: The health promotion actions carried out in the school environment have positive effects on reducing risk factors for chronic diseases in adolescents. Interdisciplinary strategies involving school and family to increase the level of physical activity among adolescents, inside and outside the school, are essential to encourage healthier lifestyles. Aim: To determine whether a 24-weeks interdisciplinary intervention program promotes improvement in the level of physical activity, physical fitness, sleep quality, life satisfaction, eating habits and reduce the sedentary behavior of schoolchildren aged 10 to 13 years of public schools in the city of Presidente Prudente, São Paulo, Brazil. The intervention: Includes training of teacher Physical Education in the principles of self-determination theory and ecological theory at practical applications for motivating adolescents in physical activities and sports. The students will be given information on the benefits of a physically active lifestyle and will be encouraged to participated the new opportunities for physical activity in their school and community. The program will offer physical activity strategies over the 24-weeks during class Physical Education, afternoon recess and active lesson breaks in theoretical classes. Nutritional guidelines and gardening experience will be developed to encourage healthy eating habits among schoolchildren and to reduce salt, oil and sugar in the preparation of school lunch. Methods/design: The project, which being conducted as cluster randomized trial, is to evaluated whit in a mixed methods, including qualitative and quantitative approach will be used for the construction of the actions integrated to the school physical education curriculum and evaluation of the program by the participants and supporters. The RE-AIM evaluation metric (Reach, Effectiveness, Adoption, Implementation, and Maintenance) is used to guide the validation this program.
The overall goal of this study is to test personalized mobile phone-based physical activity interventions among students at the University of California, Berkeley. Most physical fitness applications for smartphones and activity trackers use a constant goal for the number of steps each day. However, if the step goals are dynamically adjusted according to past behavior, then the corresponding goals may encourage individuals to increase their physical activity level. This study consists of a randomized controlled trial in which we are assessing the efficacy of four different algorithms for calculating personalized goals for the number of steps each day and for determining which motivational messages to send each day.
In this trial the investigators aim to verify the potential impacts of a multi-level intervention with standing desks on behavior and cognitive function in children