Abstract:

To investigate the growth and development of body fat in Nu ethnic students aged 7-17 years old in Yunnan province, a
differential analysis was performed on the development of skinfold thickness of triceps, subscapular and abdomen of 358 students aged
7 to 17 years old（including 193 male students and 165 female students）. The results shows that the skinfold thickness was the largest
in triceps. In the growth speed, they have different sensitive and rapid growth periods; in body composition, the fat content of Nu girls is
higher than that of boys, and the overall composition of male and female body is slightly low; the subcutaneous fat of male and female
students of the Nu ethnic group is different from that of Han students, and they are comparatively leaner.

Key words: Nu students, skinfold thickness, growth changes, differences