高脂肪食摂取と持久的トレーニングがラット脂肪組織に及ぼす影響

概要

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The purpose of this study was to determine the effects of high fat diet and endurance training on rat adipose tissue. Male Wistar rats were assigned to either a low or high fat diet (12% and 73% calories as fat, respectively). Both groups were further divided into sedentary (LFS;n=11 and HFS;n=11) and exercise trained (LFT;n=11 and HFT;n=11) groups. Exercise training was 5wk swimming program in which duration of swimming was gradually increased to 5h/day. Epididymal fat pad weight and adipose cell size in HFS group were significantly (P<0.001) higher than in LFS group. Endurance training was associated with a lower body weight and fat pad weight in both diet groups. The high fat diet decreased lipolysis stimulated by maximum norepinephrine in both untrained and trained groups (～48 and ～38%, respectively). Endurance training increased the lipolysis in both low and high fat diet groups (～41% and ～96%, respectively). These results suggest that obesity and lipemia induced by the high fat diet might be improved by endurance training.
奈良教育大学の論文