Abstract
Introduction: Studying the association between finger length ratios of 2D:4D and the physical health among college students of Han ethnicity in Southern Fujian can provide an indirect macrobiology reference index for early predictions of physical health status. Material and Methods: A total of 835 students in Southern Fujian were selected as test subjects through a stratified cluster sampling method. The 2D:4D ratio was recorded using physical measurement methods. The body mass index (BMI), vital capacity, 50-m run, and sit-and-reach test results were collected and analyzed based on the National Student's Health Standards. Results: Among male Han college students in Southern Fujian, the left 2D:4D ratio was negatively correlated with the vital capacity and sit-and-reach test results, while the right 2D:4D ratio was negatively correlated with the vital capacity, 50-m run, and sit-and-reach test results, as well as the comprehensive evaluation result of physical health. Among female Han college students in Southern Fujian, the left 2D:4D ratio was positively correlated with BMI and negatively correlated with the vital capacity, 50-m run, and 800-m run results, as well as the comprehensive evaluation result of physical health. The right 2D:4D ratio was negatively correlated with the vital capacity, 50-m run, 800-m run, and sit-and-reach test results, as well as the comprehensive evaluation results of physical health. The comprehensive evaluation results of physical health were statistically significant differences among low, medium, and high bilateral 2D:4D groups of female students, with poorer results in the high 2D:4D group than that of the medium and low 2D:4D groups. Discussion and Conclusion: The bilateral 2D:4D ratio of female and right 2D:4D ratio of male Han college students in Southern Fujian has a correlation with the comprehensive evaluation of physical health, which can serve as one of the reference indexes for adolescents' early health education, physical health monitoring, dietary intervention, and athlete selection.
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