That to know by the somatotype transformed, one grade raised to 3rd grade, ectomorph type trend to Mesomorph type or Endomorph type, Until 4th grade trend to Ectomorph type or Mesomorph type. 4.
㈢由罗列指数
年变
，
学生年成
体
变，由一年级至三年级时，从瘦趋向适
、肥胖，至四年级则及趋向瘦、适体。
观点；若发现问题，欢迎向我们指正。
