| Project/Area Number |
16370107
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
生理人類学
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| Research Institution | Siebold University of Nagasaki |
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Principal Investigator |
TSUNAWAKE Noriaki Siebold University of Nagasaki, Faculty of Nursing and Nutrition, Professor, 看護栄養学部, 教授 (10172040)
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| Co-Investigator(Kenkyū-buntansha) |
NOGUCHI Masanori Sasebo National College of Technology, Professior, 一般科目, 教授 (10106148)
YOSHIZUKA Kazunori Sasebo National College of Technology, associate Professior, 一般科目, 助教授 (10220691)
MURAKI Satoshi Kyushu University, Faculty of Design, associate Professior, 大学院芸術工学研究院, 助教授 (70300473)
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| Project Period (FY) |
2004 – 2006
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| Project Status |
Completed (Fiscal Year 2006)
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| Budget Amount *help |
¥5,000,000 (Direct Cost: ¥5,000,000)
Fiscal Year 2006: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 2005: ¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 2004: ¥2,300,000 (Direct Cost: ¥2,300,000)
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| Keywords | body composition / physiological polymorphism / body type / lifestyle / heredity |
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| Research Abstract |
It may be easy to demonstrate the association of physical status and body composition during late adolescence with heredity and lifestyle-related factors such as diet and exercise, differing from those markedly influenced by growth/development before 15 years of age. In this study, we examined whether the physical status or body composition such as percent body fat and lean body mass can be explained by heredity and lifestyle-related factors in boys and girls during late adolescence, and investigated various physiological functions.
The following results were obtained:
1. There was no significant difference in the body mass index (BMI) during late adolescence between boys and girls (20 to 21 kg/m^2).
2. There was a significant difference in the percent body fat during late adolescence (approximately 10%) between boys and girls. However, there were no age-related changes (boys: 10 to 13%, girls: 21 to 23%).
3. There were no marked differences between BMI/body composition and body temperature/peripheral circulatory function/energy intake.
4. There was no association between energy intake and BMI/lean body mass. In both boys and girls, there was an imbalance in nutritional intake. Furthermore, energy intake was approximately 80% and 90% of the requirements in boys and girls, respectively.
5. Exercise was associated with the percent body fat and lean body mass. It contributed to the maintenance of marked physical strength.
6. The parents' BMI values at 20 years of age were associated with the BMI and body composition in the non-exercise group. In this group, the boys were influenced by their mothers, and the girls were influenced by their mothers and fathers.
These results suggest that the body composition depends on exercise, and that exercise overrides a hereditary body constitution (parents' obesity tendency). Adequate diet may be essential for maintaining a healthy physical condition.
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