1996 Fiscal Year Final Research Report Summary
EFFECTS OF SHORT-TERM DIETARY CHANGE FROM HIGH FAT TO HIGH CARBOHYDRATE DIETS ON ENERGY METABOLISM DURING PROLONGED EXERCISE IN UNTRAINED RATS
| Project/Area Number |
07680092
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
体育学
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| Research Institution | UNIVERSITY OF TSUKUBA |
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Principal Investigator |
SAITOH Shinichi UNIVERSITY OF TSUKUBA,INSTITUTE OF HEALTH AND SPORT SCIENCES,ASSOCIATED PROFESSOR, 体育科学系, 助教授 (80114081)
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| Co-Investigator(Kenkyū-buntansha) |
SUZUKI Mashige UNIVERSITY OF TSUKUBA,INSTITUTE OF HEALTH AND SPORT SCIENCES,PROFESSOR, 体育科学系, 教授 (90015842)
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| Project Period (FY) |
1995 – 1996
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| Keywords | CHO LOADING / GLYCOGEN STORE / TRIACLYGLYCEROL STORE / LIPOLYSIS / LIVER GLYCOGEN SPARING / RATS |
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| Research Abstract |
This study was conducted to obtain effects of short-term dietary change from a high fat (F) diet to a high carbohydrate (C) diet on glycogen storage and utilization of muscle and liver, and lipolysis in adipose tissue in rats previously fed F diet. The results suggest that compared with the rats fed F diet, the rats who were switched from F diet to C diet (CHO loading) for 3 days enhanced glycogen stores of muscle and liver at rest and shortly after exercise, and that liver glycogen sparing during exercise. In vitro lipolytic activity of visceral adipose tissue was not impaired by CHO loading. In addition, short-term C diet feeding with or without energy restriction resulted in liver glycogen sparing during exercse, and that the C diet feeding with energy restriction only enhanced glycogen stores of muscle and liver at rest.
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