Effect of acute exercise on tissue free fatty acids in untrained rats.
Effect of acute exercise on tissue free fatty acids in untrained rats.
复制标题
急性运动对未经训练的大鼠组织游离脂肪酸的影响。
DOI：
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发表时间：
1979
影响因子：
2.1
通讯作者：
L. B. Oscai
中科院分区：
文献类型：
--
作者：
L. B. Oscai
The effects of a single bout of swimming on free fatty acids (FFA) in adipose tissue, heart, skeletal muscle, and serum were examined. Surprisingly, in previously untrained rats, FFA were elevated (P less than 0.001) in epididymal, inguinal, and retroperitoneal adipose depots 48 h after a 2-h swim. FFA in the three fat depots returned to resting levels 96 h after exercise. In heart, soleus, and fast-red fibers of the quadriceps, FFA remained elevated (P less than 0.01) for as long as 72 h after the 2-h swim. Serum FFA were still elevated (P less than 0.001) 96 h after swimming but not after 168 h. These results provide evidence that the rise in FFA is an acute effect of exercise and not a cellular adaptation resulting from daily episodes of lipolysis induced by exercise training. In a separate experiment, involving the adaptive response to endurance exercise, adipocytes from epididymal, inguinal, and retroperitoneal depots were reduced in size (P less than 0.001) to approximately the same degree. These results provide evidence that adipocytes from each depot contribute equally in meeting the energy needs of muscle during repeated bouts of endurance exercise.
