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2023-01-18T01:56:19Z
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ラットにおける運動トレーニング強度の差異が寒冷時の熱産生に与える影響
Effects of Exercise Training Intensities on Cold induced Thermogenesis in Rats
樫村, 修生
柳平, 坦徳
酒井, 秋男
竹岡, みち子
上田, 五雨
non shivering thermogenesis
tolerance to cold
physical training
brown adipose tissue, 非ふるえ熱産生
耐寒性
身体トレーニング
褐色脂肪組織
This study was undertaken to investigate the influence of training intensity (running speed) on exposure to cold, known to be involved with the endurance training, such as the metabolisms, thermal responses,a nd amuont of brown adipose tissue. The distance of running run by rats each day was constant for the two trained,he avily and lightly),b ut the treadmill speeds were varied. After 9w eeks,th e total weight and the lipid content of the brown adipose tissue in the heavily trained group decreased,c ompared with the control,b ut free-fatty dry matter content did not show significant differences between the control and the two trained groups. Among all rats exposed to 50C and -50C,the trained groups exhited significantly higher oxygen consumption出anthe control,a nd the oxygen consump. tion in the heavily trained group was especially higher at 50C. There was no significant difference in the meatabolic response to noradrenaline between the two trained groups. After the cold exposure tested at - 50C for 3h ours,t he blood glucose cocentration of the heavily trained group was smaller than those of the control,c old-acc1imated and lightly trained groups,a nd the plasma free-acids concentration of heavily trained was greater than those of the cold-acclimated and light1y trained groups. These results suggested that the thermogenesis to cold was altered great1y by the intensity of endurance training.
Article
環境科学年報14:9-16(1992)
信州大学環境科学研究会
1992-03-31
jpn
research report
VoR
http://hdl.handle.net/10091/12476
https://soar-ir.repo.nii.ac.jp/records/16891
0915-7492
AN1054947X
環境科学年報
14
9
16
https://soar-ir.repo.nii.ac.jp/record/16891/files/14-04.pdf
application/pdf
456.1 kB
2015-09-28