Abstract summary 

To evaluate the impact of 4 months of a high-intensity interval training (HIIT)-centered weightmanagement intervention on health-related quality of life (HR-QOL), health perception (HP) and physical selfperception (PSP) in adolescents with obesity.Fifty-six adolescents with obesity (28 girls; mean body mass index [BMI], 35±4.89 kg/m; z-BMI, 2.3±0.3; 11-17 years) followed a multidisciplinary weight-management intervention composed of nutritional counseling, HIIT program, and health-related therapeutic education. Anthropometric parameters, body composition (dual X-ray absorptiometry), and maximal aerobic capacities (maximal oxygen consumption [VO]) were assessed, and self-reported questionnaires were used to assess HR-QOL (36-item short form survey), HP and PSP at baseline (T0) and post-intervention (T1).Body weight (92.6±18.9 to 85.9±16.2 kg), BMI (35.0±4.8 to 32.1±4.5 kg/m), z-BMI (2.3±0.3 to 2.1±0.3) and fat mass percentage (36.0%±9.1% to 30.4%±7.8%) were significantly decreased (<0.001) between T0 and T1. There was a tendency for VO to increase from 26.35±5.81 mL/kg/min at T0 to 28.79±6.59 mL/kg/min at T1 (=0.06). Physical functioning (=0.002), physical limitation (=0.048), general health (<0.001) and bodily pain (=0.030) were improved at T1. A significant improvement occurred in dimensions of HP such as physical condition (=0.001), adiposity (<0.001), alimentation (<0.001), general health (=0.038), and perceived general health (=0.001). In addition, there was an improvement in items of PSP such as self-perceived coordination (=0.022), endurance (=0.001) and activity (=0.001), global self-concept (=0.015), and appearance (=0.016). Physical but not mental HR-QOL domains, HP and PSP were associated with weight reduction.While HIIT favors improved HR-QOL, HP status and PSP in adolescents with obesity, physical but not mental HR-QOL, HP and PSP were associated with weight reduction.

Authors & Co-authors:  Khammassi Marwa M Miguet Maud M Julian Valérie V Cardenoux Charlotte C Boirie Yves Y Duclos Martine M Pereira Bruno B Thivel David D

Study Outcome 

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