Childhood obesity is associated with increased health risks in adulthood, affecting capacity for physical activity and occupational performance, as well as psychological and social deficits. These are significant contributors to direct and indirect costs. The prevalence of obesity and related factors in young children emphasizes the importance of understanding periods of vulnerability in early development and the interaction between physical activity, lifestyle, and dietary behaviour, resilience, and HRQoL. Factors for preventing obesity are social support and a person's willingness to lifestyle changes (Gilchrist \& Zametkin, 2006). With many adverse effects of adolescent obesity, one's resilience (self-esteem, self-efficacy, and optimism) may contribute to being protective, ultimately influencing the individual's overall health-related quality of life. However, to the investigator's knowledge, resilience (self-esteem, self-efficacy, and optimism) has not been explored from the perspective of a protective factor to obesity development, particularly in Indian adolescents.

The study aims to identify the relationship between resilience and obesity factors in Indian adolescents. The main aim of this study is to see the correlation of resilience, identified as self-esteem, diet and physical exercise self-efficacy, and optimism, with factors influencing the development of obesity (physical activity, lifestyle, and dietary behaviour) in Indian children/adolescents. In this cross-sectional study, samples will be recruited from sites where other influencing factors can be controlled, for example the local secondary schools (where investigators can control for socioeconomic background, education, etc.)

The current study findings may lead to a holistic understanding of obesity-contributing factors, such as dietary habits and physical activity and their relationship with resilience and HRQoL. Increased knowledge of these factors may lead to more comprehensive studies involving resilience and obesity and also study if the early resilience-building intervention can potentially lower the chances of developing obesity in adolescents. Results from the study can also help build more effective programs for health professionals and nutritionists striving to reduce or prevent obesity among adolescents. Results from the present study maybe used by future researchers to develop interventions to strengthen resilience among children at risk for overweight or obesity.

Process for participant recruitment process in India: Schools will be selected through previously established professional networks of the student researcher. A snowball or chain sampling strategy will be followed to recruit the schools. In this form of recruitment, selected participants identify other potential informants. Through snowballing (Kaplan et al., 1987), school principals previously known to the student researcher will help to identify other school principals as potential participants for the study. This will be followed by face-to-face meetings with the principals of identified schools, and they will be requested to participate in the study after explaining the details. The school principal will facilitate the recruitment of students and parents. The number of schools chosen will depend on the total sample size for the study. Both private and government schools will be selected. After completing the school selection, the researcher will visit each school and meet the school principal to brief about the research study. Participation in the study is voluntary. School involvement will be minimal. A detailed study brochure will be handed over to the school principal for uploading to the school notice board. The school principal will facilitate the recruitment of students and share the study details through an announcement in the school assembly. Parent questionnaires and consent forms will be sent home with the child. Once the parent agrees to participate in the study, they can send the signed consent and filled-out questionnaires with the student to school. The student needs to submit it to the concerned person in school from where the researcher will collect it back. The researcher will briefly explain the study to the class teacher and the students through a one-time meeting. Data collection for children will happen during school recess/after school.

The study will have two phases: a pilot phase and a main phase. The findings from the pilot will help determine the questionnaire design for the main phase.