Hierarchical Regression Assessment of Physical Fitness and Body Mass Index
Overview
This study investigates the associations between Body Mass Index (BMI) and physical fitness indicators among primary school students in Sichuan Province, highlighting significant differences by gender, ethnicity, and age. The findings show a negative correlation between BMI and 50-meter run performance (r = -0.266) and lung capacity (r = -0.186).
Background
Childhood obesity is a growing public health concern. Understanding the relationship between BMI and physical fitness is essential for developing targeted interventions, especially in diverse populations like those in Sichuan Province, China. This study addresses a gap in research regarding the physical health of children in less developed regions.
Data Highlights
Group
Average BMI
Han Students
17.07
Yi Students
16.90
Boys
17.18
Girls
16.85
12-Year-Olds
18.08
Key Findings
Significant differences in BMI were observed across ethnicities, genders, and age groups.
Boys had a higher average BMI (17.18) compared to girls (16.85).
Han students had a higher average BMI (17.07) than Yi students (16.90).
BMI was negatively correlated with 50-meter run performance (r = -0.266) and lung capacity (r = -0.186).
The final regression model explained 11% of the variance in BMI.
Clinical Implications
The findings show that BMI is influenced by demographic factors and physical fitness indicators among primary school children.
Conclusion
The study highlights the relationships between BMI and physical fitness in primary school students in Sichuan Province.
