DIETARY INTERVENTION MIGHT ENHANCE THE RBC CELL METABOLISM

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Purpose : Rhythmic gymnasts sometimes develop severe iron-deficiency anemia. Preventing such anemia could thus enhance both their performance and health. We compared the relationship between a dietary intervention and RBC metabolism.Methods : Ten female rhythmic gymnasts were recruited for this study. Changes in the RBC delta-aminolevulinate dehydratase (δ-ALAD) activity were used as an index of biosynthesis, and changes in the haptoglobin (hp) were used to assess degradation. Results : During the one month intervention period, the athletes consumed traditional Japanese foods which provide 1500 kcal energy, 2 g/kg body weight protein, 200 g carbohydrate and 15 mg iron. No main effect of this intervention on the hematological indexes was observed. The δ-ALAD activity was significantly greater in August than in July or September. Hp concentration was significantly lower in August in comparison to the other periods. Conclusion : Dietary intervention might enhance the RBC turnover by increasing the capacity for erythrocyte biosynthesis and degradation.

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  • 体力科学

    体力科学 55 (Supplement), S173-S178, 2006

    一般社団法人日本体力医学会

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