Study on Incremental Changes of Physical Quality in 6∼22-Year-Old Students

To study the incremental changes of physical qualities, with a view to find out the change law of physical qualities in these latest 20 years, to provide a scientific basis for the theory and practice for physical education reforms, outline revision and teaching materials preparation, athletes selection and sports training, to cater for modern students' physical and mental development and health promotion, 6 similar to 22-year-old students in the year of 2000 and 2005, the research objects, were grouped into four categories by their regions and genders. Each age was of one group, which was composed of 150 students, and 68 age groups in all, whose constitutional data including grip strength, 50m run, strength endurance, standing-long jump, sit-and-reach, 50m * 8 ,1000m(male) or800m(female) in the growth of different ages were all mathematically and comparatively analyzed. The results indicated that quite few physical qualities appeared declining, while the overwhelming majority still presented remarkable increasing,for instance, the incremental changes of 6 similar to 22-year-old boy students' endurance and explosive power decreased to some extent; while grip strength, sit-and-reach remarkably improved; 50-metre-race performance sustained the level as in 2000.So it is recommended that bit is essential for people's physique promotion to strengthen nutrition intake and physical activity monitoring even from during pregnancy, early childhood and increase physical exercise programs appropriately to prevent the physical decline while in adolescent period.