Öz
In this study, it was aimed to examine obesity prevalence, physical activity level, and healthy lifestyle behaviors of adolescent children. The universe of the research consists of adolescent students studying in a town, secondary school and high school in the city of Afyonkarahisar. The sample of this population consisted of 210 adolescent students, 100 of whom were male and 110 female, who were selected by convenience sampling method. The data in the research were obtained from 3 different scales. The first section of the measurement tool; it was the Physical Activity Scale for Adolescents developed and adapted into Turkish The second one; it was the Healthy Lifestyle Behaviors II Scale. The last section of measurement tool was the Personal Information Form. To the collected data; descriptive statistics, independent groups t-test, and Pearson correlation analysis were used. When the findings of the study's healthy lifestyle students' behaviors were examined; there was a significant difference according to gender, (p <.05). When the physical activity findings of the research were examined; students differ significantly according to gender, (p <.05). Finally, negative and low-level significant relationships were found between body mass index and interpersonal relationships. Positive and low-level significant relationships were found with the physical activity and total score of healthy lifestyle behavior. Moderately significant positive relationship between nutrition and physical activity were found (p <.05). As a result, it was determined that adolescents who exhibit healthy eating behaviors and who do regular physical activity exhibit more successful healthy lifestyle behaviors. These results indicate that gaining a healthy nutrition and regular physical activity habits will play a key role in improving healthy lifestyle behaviors in adolescence.