<![CDATA[This study aims to examine the relationship between Body Mass Index (BMI) and cardiovascular fitness levels among students at SMP IT Darul Wahdah Gerung in 2025. A quantitative approach with a correlational research design was employed. Data were collected by measuring students’ body weight and height to calculate BMI, as well as administering the 12-minute Cooper test to assess cardiovascular fitness levels. Pearson’s correlation test was used for data analysis. The results revealed that; (1) there was a significant relationship between Body Mass Index (BMI) and students’ cardiovascular fitness levels, as indicated by a correlation coefficient of −0.689 and a significance value of 0.005 (p < 0.05). Therefore, the null hypothesis (H₀) was rejected, and the alternative hypothesis (H₁) was accepted. (2) The negative correlation coefficient indicates a significant inverse relationship, meaning that higher BMI values are associated with lower cardiovascular fitness levels, and vice versa.]]>
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