Validation of a new scale to measure perceived exertion in obese adolescents: the Childhood Obesity Perceived Exertion (Cope-10) Scale.

Background: The aim of this study was to validate a measurement scale for perceived exertion, named the Childhood Obesity Perceived Exertion Scale (COPE-10), by evaluating concurrent validity, reliability and sensitivity in obese adolescents.

Methods: Thirty obese adolescents (BMI 36.2±0.

Evaluation of cardiorespiratory fitness using three field tests in obese adolescents: validity, sensitivity and prediction of peak VO2.

Objectives: Evaluation of cardiorespiratory fitness in obese adolescents is necessary to develop personalised retraining programmes. We aimed to measure cardiorespiratory fitness using 3 field tests, and to evaluate their validity and sensitivity compared to values obtained by laboratory tests.

Design: Longitudinal interventional study in obese adolescents admitted to a rehabilitation centre for a 9-month programme of obesity management.

Ghrelin and PYY levels in adolescents with severe obesity: effects of weight loss induced by long-term exercise training and modified food habits.

This study investigated (a) changes in ghrelin and peptide YY (PYY) concentrations during a weight reduction programme and (b) baseline ghrelin and PYY levels as predictors of weight loss in 32 severely obese adolescents (BMI z score = 4.1). Subjects spent an academic year in an institution for childhood obesity.