What is the purpose of comparing the physical measurement data of 20 19 and 2022?

Understand the corresponding changes of students' physical health. The sample data of all students who participated in the physical health test of our school in 20 19 and 2020 were sampled and statistically analyzed. Through analysis, we can clearly understand the corresponding changes of students' physical health, so as to strengthen school physical education, make students actively participate in physical exercise, develop good physical exercise habits, and improve students' physical health level.