Pediatric Obesity Clinical Trial
Official title:
Role of Mechanical Load on Metabolic Exercise Adaptations in Response to Weight Loss in Obese Adolescents: The POWELL Study
While interdisciplinary weight loss intervention have been shown successful among adolescents with obesity, a weight regain is most of the time observed within the following weeks or months. The aim of the present project will be to better identify the independent role played by both the metabolic and mechanical load and their modification during weight loss, on the energy expenditure and energy metabolism of adolescents with obesity.
A total of 28 adolescents with obesity will be recruited from our local inpatient pediatric obesity centers. Before their weight loss intervention the adolescents will complete two experimental visits. During the first visit, anthropometric and body composition measurements will be performed. Then the participants will be asked to complete a walking exercise on a treadmill during the second visit. Their energy expenditure and substrate oxidation will be assessed by indirect calorimetry. They will have to walk at 5 different walking speeds. Then, they will follow a 12-week weight loss intervention. By the end of this intervention, their body composition will be assessed and they will be asked to perform the same walking exercise. On a separate occasion (randomly assigned) they will have to repeat this walking exercise while carrying a load corresponding of their weight loss. ;
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