<原著>定量的漸増運動負荷中及び回復期における血中カテコールアミン・血清カリウム・脂質及び血糖の動態(第2報)

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The heart rate, blood pressure, serum potassium, adrenaline (Ad), noradrenaline (NA) and oxgen consumption (Vo2) were determined during graded exercise by bicycle ergometer and during the post exercise period in 21 adults (19 men and 2 women) to investigate the correlation of exercise and catecholamine release, with special reference to the effects of catecholamine. The results were as follows : (1) The Ad and NA were increased slowly up to moderate work load. Thereafter the both levels were rapidly increased by heavy exercise, reaching in the maximal level during the early after exercise period. The V02 max of individuals was well correlated with the peak levels of plasma NA (r＝0.874, y＝19.1×In (peak NA)−116.5), but not Ad. (2) Serum potassium was increased gradually while the graded exercise was performed. However, it was steeply decreased immediately after exercise. The changes of increased potassium was correlated with Vo2 max, peak Ad and NA (r＝0.597, 0.561, and 0.717, respectively). The hypokalemic change early after exercise was well correlated with In (peak Ad) (r＝0.786, y＝0.57×In (peak Ad)−2.09). These results suggest that endurance training induces the increase of the storage and secretion of catecholamine and that such catecholamine changes in heavy exercise influence Na-K pump, resulting in the change of serum potassium level.
九州大学の論文
1986-03-28