View clinical trials related to Physical Activity.
Filter by:This study aims to make a proper scientific assessment on the dietary intake and physical activity levels of a representative sample of the urban population of 8 Latin American countries (Argentina, Brazil, Chile, Colombia, Costa Rica, Ecuador, Perú and Venezuela). The study was based on complex, multistage sample design, stratified by conglomerates, being all regions of each country represented, and random selection of main cities within each region according to probability proportional to size method. Sample will be stratified by gender, age (15 to 65 years old), and socioeconomic level. Socioeconomic levels will be balanced and divided in three strata (high, medium and low) based on national indexes used in each country. All the study sites are university-based and will adhere to a common study protocol for training, implementation of fieldwork, data collection and management, and quality control procedures to be performed simultaneously. All participants will be required to provide a written informed consent. A pilot study at small scale will be performed in each country in order to test procedures and tools involved in ELANS. Anthropometric variables, including body weight, height, waist, hip and neck circumferences will be measured according to a standardized protocol. Nutritional intake evaluation will be performed using two 24-hour dietary recalls, with 'multiple pass' procedure and a food frequency questionnaire. Nutritional data will be entered in Nutrition Data System for Research (NDS-R, Minnesota University) after a harmonization process between local foods and NDSR database. Physical activity and energy expenditure will be assessed by IPAQ-long version questionnaire and 7-day accelerometry.
The purpose of this study is to investigate if including fitness testing in preventive health checks increase cardiorespiratory fitness and motivation to change physical activity behavior compared with preventive health checks without fitness testing.
The investigators have developed an eHealth intervention based on self-regulation for the promotion of self-regulation of physical activity and fruit and vegetable intake among adults who visit general practice. Effectiveness of the intervention will be evaluated in a three-arm clustered quasi-experimental design in general practice.
The rate of adult obesity in the United States has increased more than two times since 1970, and the rate of child-teen obesity has increased by four times. One of the antecedents of obesity is an inactive lifestyle. Exercise has been known to be associated with increases in both physical and mental health by increasing longevity, preventing risk of obesity, coronary heart disease, and hypertension, and increasing self-esteem and overall quality of life. The broad aim of the current study is to investigate the effectiveness of psychoeducational training to increase exercise activity initiation and maintenance in young adults. The goal of this study is to compare three training approaches for college students to increase exercise behavior. One approach provides general information on the different types of exercises and benefits of engaging in exercise behavior after an initial questionnaire assessment session. A second approach includes the general exercise information and questionnaire assessment as well as training on how to create specific goal intentions (i.e., implementation intentions) to aid in exercise initiation. A third approach uses all the components of the second approach but also tests the utility of a personality-informed module by incorporating concepts from the theory of learned industriousness. It is expected that the third approach will be the most effective in helping participants initiate and maintain their exercise activities during the course of the study duration.
The primary aim of this pragmatic randomized-controlled trial was to determine the effectiveness of a scalable 6-month intervention aimed at decreasing SSB consumption (SIPsmartER) when compared to a matched contact physical activity promotion control group (MoveMore).
The purpose of this study is to examine the contribution of sit-stand workstations to total daily physical activity in a multi-component office-based 12 month intervention.
Exercise is a proven strategy for preventing type 2 diabetes. Traditionally individuals have been prescribed moderate-intensity continuous aerobic exercise but adherence to this standard exercise program is dismal. High-intensity interval training (HIIT) is a novel form of exercise that involves brief, repeated bursts of vigorous exercise separated by periods of recovery. HIIT elicits many favourable cardiometabolic adaptations that are similar to traditional exercise but does so with a lower amount of exercise and in substantially less time than moderate-intensity continuous exercise. Therefore, HIIT has been touted as a "time-efficient" exercise strategy for improving health. Whether overweight individuals at risk for pre diabetes will show greater adherence to HIIT than moderate-intensity continuous exercise over the long-term (12-months) has not been tested. Because exercise adherence requires complex self-regulation, interventions designed to improve adherence should include a behavioural component. The investigators will assess adherence to HIIT and moderate-intensity continuous exercise over 12 months following a short-term (2 week) intervention of either HIIT or moderate-intensity continuous exercise. Both conditions will include a self-regulatory component targeted to increase participants' confidence to engage in regular, independent exercise. The results will help determine whether HIIT is a more feasible option for promoting exercise adherence for pre diabetes prevention than the traditional moderate-intensity continuous exercise. The investigators hypothesize that a) over the 12 months follow-up subjects randomized to the HIIT will be more likely to adhere when compared to moderate-intensity continuous exercise, b) over the 12 months follow-up subjects randomized to HIIT will have higher rates of adherence and levels of total physical activity, c) greater increases in self-regulation (including goal setting, self-monitoring, and self-regulatory efficacy) following HIIT will mediate higher rates of adherence, d) 10-days of HIIT and moderate-intensity continuous exercise will improve cardiorespiratory fitness, increase insulin sensitivity, reduce circulating inflammatory markers, and improve glucose control and e) Improvements in cardiometabolic health factors will be greater following HIIT compared to moderate-intensity continuous exercise.
Cardiovascular diseases (CVD) accounted for major mortality and morbidity rates in Hong Kong (HK) other than cancer. Increasing energy expenditure through regular exercise participation has been found to lower the risk of CVD such as hyperlipidemia and obesity. Healthcare professionals often prescribe lifestyle exercises for disease prevention, rehabilitation, and health maintenance purposes. Previous study revealed that Tai Chi and walking were widely practice by HK citizens. However, limited studies are found to compare the health benefits between Tai Chi and walking. Do Tai Chi and walking have equally effective in raising metabolic rate and reducing CVD risks? The difference in energy cost between a single bout of Tai Chi and walking has not been documented. Limited studies report the effects of Tai Chi in lowering the CVD risk. Since walking and Tai Chi are being heavily promoted in HK in recent years, there is an urgent need to document the evidence of these two common forms of exercise in terms of reducing CVD risks. Therefore, the purpose of the present study was to investigate the energy costs as well as CV health benefits, in terms of aerobic fitness, body composition, blood pressure, and blood lipid profiles, from the walking and Tai Chi exercise in a sample of HK Chinese adults, and to compare the effects between these two exercises. The investigators hypothesized that Tai Chi and walking had similar effects on improving energy cost and reducing CVD risks.
Prevalence of type 2 diabetes (T2D) is increasing worldwide. Lifestyle remains the cornerstone treatment for patients with T2D who are often overweight and sedentary. Physical activity improves glucose metabolism of patients with T2D : increased glucose utilization during acute muscle activity and improved insulin sensitivity after regular training. The molecular mechanism underlying the effects of exercise on glucose metabolism involves the glucose transporter GLUT-4 which is regulated by physical activity. Several studies and meta-analysis have showed that physical activity reduces HbA1c by 0.6% on average. In addition, other data suggest a decrease in cardiovascular morbidity and mortality through physical activity. Recent recommendations for T2D management call for the practice of a structured type of endurance 150 minutes per week and muscle building 2 times per week. However, implementation of these recommendations is low, even when integrated into a therapeutic education program. Adherence is often transient and / or partial. In addition, many T2D subjects are unable to initiate a physical activity because of disabling complications or comorbidities or because of a major cardiorespiratory deconditioning. Neuro-myo electrical stimulation (NMES) is a physical treatment routinely used in functional rehabilitation to improve muscle strength and volume. The metabolic effect of NMES has been little studied. A pilot study conducted by our team on a population of 18 subjects with T2D showed that a week of daily NMES sessions significantly improved insulin sensitivity of about 25% and up to 50 % for good responders. This result contrasted with the low induced energy expenditure by each 20-minute session of bi-quadricipital NMES, suggesting the possibility of a humoral or neural mechanism associated with NMES. To complete this work, we plan a randomized cross-over trial with 3 periods (6 weeks without NMES (control), 6 weeks with 3 sessions of NMES per week and 6 weeks with 5 sessions of NMES per week) to assess the glucose profile of sedentary T2D subjects during these different periods. We hypothesize that the bi-quadricipital NMES could improve glycemic control in T2D subjects and thus represent an alternative to traditional physical activity.
The purpose of this study is to determine whether school gardens affect children's physical activity.