Comparison and Analysis of Physical Development of Tujia Students for the past 20 Years

To analyze the current situation of the growth and development and dynamic change in the past 20 years on Tujia students in xiangxi.2529 Tujia students of the age between 7 to 18 in xiangxi were enrolled in this study with anthropometry.The measurements included staure,body weight,sitting height,chest circumference,shoulder and pelvic width,and each index was compared with that in the past 20 years.The results showed: All physical indexes of Tujia students were increased along with the accretion of age,and this change showed itself three phases which were well-proportioned increase,double-quick increase and laggardly increase。The rush age of each physical index of boys(13-15a) were older than those of girls(11-13a).The rat of annual increasing on staure,body weight,sitting height,chest circumference,shoulder and pelvic width of boys were 5.93%,17.38%,5.22%,6.39%,5.74% and 6.54%,respectively;and those of girls were 5.51%,14.88%,4.49%,6.02%,4.00% and 7.55%,respectively.Compared with the resuls of the same investigation in 1985,the average increasing values of indexes on Tujia boys(girls) in xiangxi were staure 1.10(0.62)cm,body weight 0.80(-0.18)kg,sitting height-0.16(0.07)cm,chest circumference 0.39(0.91)cm,shoulder width 0.62(0.42)cm,pelvic width 0.10(0.06)cm and vervaeck index-0.34(-0.69),respectively.Those suggested that the situation of the growth and development on Tujia studens in xiangxi was not obvious melioration recent 20 years.