文章基本信息

标题：運動性貧血とたん白栄養
本地全文：下载
作者：芦田輝子
期刊名称：日本栄養・食糧学会誌
印刷版ISSN：0287-3516
电子版ISSN：1883-2849
出版年度：1972
卷号：25
期号：5
页码：380-392
DOI：10.4327/jsnfs1949.25.380
出版社：Japanese Society of Nutrition and Food Science
摘要：To clarify the effect of protein nutrition on sports anemia, 90 rats were divided into three groups, high protein group (24% casein food), standard protein group (16% casein food) and low protein group (8% casein food). Each group was divided in two groups respectively, resting group and exercising group, the latter ran two hours daily with a speed of 1.3km/h for 10 days. Blood properties, especially hemoglobin content, hypotonic resistance of erythrocyte, and metabolism of hemin labelled with ⁵⁹Fe and myoglobin content in skeletal muscles were measured. (1) The sports anemia was severest in the protein deficient group, significantly verified in the standard group while not significant in the high protein group. (2) The increase of reticulocyte count which accompanied the sports anemia was most remarkable in the high protein group, while the least in the protein deficient group. (3) The antihemolytic value defined by Shiraki decreased with the erythrocytes of the exercising rats as compared with the resting ones both in the standard and low protein group, while it increased in the high protein group. (4) The turnover rate of hemin ⁵⁹Fe of the erythrocyte labelled with ⁵⁹Fe increased in the exercising group of all kinds of food group as compared with the resting group. The mean life span of erythrocytes of exercising rats decreased in all kinds of food groups. The mean life span of the erythrocytes of the exercising protein deficient group was about 28 days which was shortest, while that of exercising and high protein food group was about 37 days. (5) The myoglobin content in the skeletal muscle of exercising group increased as compared with the resting control. The increase in the high and standard protein group was remarkable, while the least in protein deficient group. From these results, it is concluded that the tendency of erythrocyte destruction increases by subjecting the rats to heavy daily muscular exercise, and the sports anemia appear. When the high protein food is provided to the exercising rats, the red cell formation is accelerated, and also the resistance of red cell is increased, and the sports anemia is insignificant. On the other hand, if the protein supply is insufficient, the erythrocyte becomes apt to be destructed by exercising and the acceleration of red cell formation due to anemia is not sufficient, thus initiating a severe anemia. Utilization of hemoglobin freed from destructed erythrocyte which was verified by Hiramatsu was reconfined by the measurement of myoglobin in the skeletal muscle of exercising rats.