Background: Childhood and adolescent obesity impacts on various dimensions of psychosocial health, including health-related quality of life (HRQOL) and personal self-concept. Detecting inhibitory and promotive factors of psychosocial health could contribute to the development of more effective obesity management. In this context, the role of physical fitness among the predicting variables of psychosocial health has rarely been investigated.
Objective: To identify relevant predictors of weight-specific HRQOL and self-concept in the context of childhood and adolescent obesity.
Methods: The sample comprised cross-sectional data of 241 children and adolescents with obesity and overweight (12.5 ± 2.1 years; 51.9% girls) and their parents. Information on demographics and active/inactive lifestyle were assessed via parent report. Anthropometric data and physical fitness in relation to body weight (W/kg) were measured. Children and adolescents completed standardized questionnaires (GW-LQ-KJ, FSK-K) to assess HRQOL and five dimensions of self-concept (scholastic, social, physical, behavioral, and self-worth).
Results: Backward multivariable linear regression analysis showed that three subdomains of self-concept (physical, behavioral, self-worth) were negatively associated with increasing BMI Z-scores, age, physical activity (hours/week), low parental educational levels, or migration background. HRQOL, however, was only significantly related to relative physical fitness (W/kg; β=8.02, P<0.05) as were scholastic (β=8.92, P<0.05) and social self-concept (social β=8.68, P<0.05).
Conclusion: The results add physical fitness as a relevant predictor of HRQOL and self-concept of children and adolescents with obesity and overweight. Therapeutic and preventive weight management strategies should therefore consider physical fitness as an important additional outcome measure of psychosocial health.

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Posted 07 Jun, 2021
Posted 07 Jun, 2021
Background: Childhood and adolescent obesity impacts on various dimensions of psychosocial health, including health-related quality of life (HRQOL) and personal self-concept. Detecting inhibitory and promotive factors of psychosocial health could contribute to the development of more effective obesity management. In this context, the role of physical fitness among the predicting variables of psychosocial health has rarely been investigated.
Objective: To identify relevant predictors of weight-specific HRQOL and self-concept in the context of childhood and adolescent obesity.
Methods: The sample comprised cross-sectional data of 241 children and adolescents with obesity and overweight (12.5 ± 2.1 years; 51.9% girls) and their parents. Information on demographics and active/inactive lifestyle were assessed via parent report. Anthropometric data and physical fitness in relation to body weight (W/kg) were measured. Children and adolescents completed standardized questionnaires (GW-LQ-KJ, FSK-K) to assess HRQOL and five dimensions of self-concept (scholastic, social, physical, behavioral, and self-worth).
Results: Backward multivariable linear regression analysis showed that three subdomains of self-concept (physical, behavioral, self-worth) were negatively associated with increasing BMI Z-scores, age, physical activity (hours/week), low parental educational levels, or migration background. HRQOL, however, was only significantly related to relative physical fitness (W/kg; β=8.02, P<0.05) as were scholastic (β=8.92, P<0.05) and social self-concept (social β=8.68, P<0.05).
Conclusion: The results add physical fitness as a relevant predictor of HRQOL and self-concept of children and adolescents with obesity and overweight. Therapeutic and preventive weight management strategies should therefore consider physical fitness as an important additional outcome measure of psychosocial health.

Figure 1
This is a list of supplementary files associated with this preprint. Click to download.
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