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Please use this identifier to cite or link to this item: http://ir.jwcpe.ac.jp/dspace/handle/123456789/524

Title: 一過性の自転車エルゴメーター運動は赤血球合成を促進する
Other Titles: A single bout of exercise on a cycle ergometor enhances the biosynthesis of red blood cells
Authors: 川野, 因
渡嘉敷, 晶子
西村, 佐喜子
梶本, 雅俊
Kawano, Yukari
Tokashiki, Akiko
Nishimura, Sakiko
Kajimoto, Masatoshi
カワノ, ユカリ
トカシキ, アキコ
ニシムラ, サキコ
カジモト, マサトシ
Keywords: single bout of exercise
osmotic fragility
δ-ALAD activity
Issue Date: Mar-2002
Abstract: The aim of this study is to investigate the effect of a single bout of cycling exercise on degradation using the osmotic fragility of red blood cells (RBC) and haptoglobin (hp) concentrations, and on biosynthesis using the activity of δ-aminolevulinate dehydratase (ALAD), erythropoietin (EPO) concentration and reticulocytes. These parameters were measured before, 0, 1, 3, and 6 hours after exercise. A single bout of the cycling exercise did not affect the levels of serum iron, ferritin, % saturation of total iron binding capacity (Tf), osmotic fragility and hp. However, δ-ALAD activity increased at 3 hours (p<0.05) and 6 hours (p<0.01) after exercise, respectively, compared to that of 0 hours after exercise. Reticulocytes were the highest at 6 hours after exercise. We conclude that RBC biosynthesis measured by δ-ALAD activity, EPO and reticulocytes, was triggered by a single bout of exercise stimulation, and was independent of exercise induced hemolysis and iron depletion.
URI: http://ir.jwcpe.ac.jp/dspace/handle/123456789/524
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