水族中小学生足长与身高体重的关系

了解水族中小学生足长与身高、体重的关系,为人类体质调查积累资料提供依据.方法 分层整群抽取贵州省三都水族自治县九仟镇6~ 16岁水族中小学生l 382名(男生689名,女生693名),对其足长、身高和体重进行测量和分析.结果 男生足长由6岁的17.10 cm增长到16岁的23.44 cm,女生由16.29 cm增长到22.14 cm,男、女生平均年增长值分别是0.63和0.59 cm;男生身高由112.49 cm增长到157.13 cm,女生由109.01 cm增长到149.79 cm,男、女生平均年增长值分别为4.46和4.08 cm;男生体重由19.11 kg增长到45.88 kg,年均增长2.68 kg,女生由17.83 kg增长到45.02 kg,年均增长2.72 kg.各年龄组男女生足长与身高、体重均呈正直线相关关系(r值为0.437~0.927,P值均<0.01).水族中小学生足长(x)与身高(y1)、体重(y2)的回归方程,男生为y1=5.801x+ 17.001,y2=3.677x-43.768;女生为y1=5.942x+ 15.592,y2=3.836x-45.512.结论 水族男女中小学生足长与身高、体重均相关.所得回归方程可用于推算水族学生身高和体重.

Relationship of foot length with stature and weight among students of Shui nationality in middle and primary schools

Objective To study the relationship of the feet length with the statures and body weights of Shui students in middle and primary schools,in order to provide evidence for the accumulation of physical anthropology data.Methods A total of 1 382 Shui nationality students (689 males and 693 females) aged from 6 to 16 were selected from middle and primary schools in Sandu County in Guizhou Province,and their feet length,statures and the body weights were measured to perform a statistical analysis.Results The foot length of the male increased from 17.10 cm to 23.44 cm,the female from 16.29 cm to 22.14 cm,and the average annual growth of male and female were 0.63 cm and 0.59 cm in students of age from 6 to 16,respectively.The male stature grew from 112.49 cm to 157.13 cm,and the female from 109.01 cm to 149.79 cm,and the average annual growth of male and female were 4.46 cm and 4.08 cm,respectively.The body weights of the male increased from 19.11 kg to 45.88 kg,and for female from 17.83 kg to 45.02 kg,and the average annual growth of weights of male and female were 2.68 kg and 2.72 kg,respectively.There were a positive correlation among the foot length,stature and body weight in all male and female groups(r=0.437-0.927,P <0.01).The total regression equation of feet length and statures,and body weights were calculated.For male,it was y=5.801x+17.001,y=3.677x-43.768 and for female,it was y=5.942x+15.592,y=3.836x-45.512 respectively.Conclusion There are positive correlation among the foot length,stature and body weight in middle and primary students of Shui nationality.The regression equations can be used to calculate the stature and body weight of Shui students in middle and primary schools.