小学生课间餐中补充赖氨酸对发育影响的初步探讨

为了观察小学生课间餐中补充赖氨酸对生长发育的影响,对沈阳市小学一年级学生作为期12周加餐试验。受试者分力三组,赖氨酸强化组、赖氨酸-铁糖强化组和普食对照组。观察项目有身高、体重、胸围、皮下脂肪厚度、血红蛋白和红细胞数。结果表明,强化组儿童的身高、体重、胸围平均增加值优于对照组儿童,以体重增加较为明显,但组间皮下脂肪厚度变化则无明显差别。强化组儿童的血红蛋白、红细胞数明显增高,说明补充赖氨酸对防治儿童贫血有所俾益。

THE EFFECT OF AN ADDITIONAL MEAL SUPPLEMENTED WITH LYSINE DURING THE BREAK ON THE PHYSICAL DEVELOPMENT OF PRIMARY SCHOOL PUPILS

The physigues of eighty pupils in a primary school in Shanyang were investigated after taking additional L-lysine hydrochloride with meals between classes for 12 weeks. They were derided into 3 groups: 1) ordinary diet plus 0.5g lysine; 2) ordinary diet plus 0.5g lysine and 5 mg iron (lysine and lysine-iron group were referred to as fortified group) and 3) ordinary diet only as control. After 12 weeks of experiment the results showed that the average increase in height, weight and chest measurement of the fortified group was higher than that of the control group, particularly the increase of weight was more remarkable. The increase in subcutaneous fat, however, showed no difference among the three groups, suggesting that weight gain was probably not due to the increase in the subcutaneous fat of the trunks and limbs but to the muscular and other tissues development promoted by the supplementary substances in diet.From a raise in the Hb value and the number of red blood cells in the experimental group, it was proposed that lysine may be good enough for the prevention or treatment of iron dificiency anemia.So that, to supply meals with lysine between classes was considered to be a simple and convenient means for promoting the health of pupils.