- 著者
- Masafumi AKISAKA Hidemoto ZAKOUJI Makoto ARIIZUMI
- 出版者
- The Japanese Society for Hygiene
- 雑誌
- Nippon Eiseigaku Zasshi (Japanese Journal of Hygiene) (ISSN:00215082)
- 巻号頁・発行日
- vol.52, no.2, pp.481-489, 1997-07-15 (Released:2009-04-21)
- 参考文献数
- 16
- 被引用文献数
- 5 4
To obtain basic data on the bone density of high school girls, the bone density of the right heel was measured in principle and their lifestyles were surveyed. The subjects were 142 girls (15-18years, mean±SD=16.5±0.8years old) of a high school in Nagano Prefecture, who accepted our visiting bone health check. Bone density was measured with an' Achilles' ultrasound bone-densitometer (Lunar Co.) and a self-registered questionnaire on their lifestyles was also employed in this study.The main results were as follows:1. There were no significant correlations between Sitffness and, age, grede, bone fracture, family historiy, and regularity of menstruation. However, Stiffness significantly correlated to the age of menophania (r=-0.191, p=0.002)2. High school girls who belonged to a sports club had significantly higher bone density than other girls. Those who did exercises which consist mainly of jumping, had significantly higher bone density than others who participated in running sports or did no exercise. There were also significant differences in the frequency of exercise and the duration of exercise. Mireover, those who had a regular exercise history had higher bone density than those who had no regular exercise histry, and the mean Siffness of the group that did exercises daily was higher than for those who did not.3. There were no significant correlations between Stiffness and food intakes. There also were no significant diffrence for Stiffness concerning intake of calcium-containing food groups. Regarding the cause of weight loss of more than 2kg/month, the mean Stiffness of the group with intense exercise was significantly higher than those in the no-weigh loss group and the group that had reduced dietary intake.4. Regarding the relationships between bone density and the lifestyles of high school girls, a delayed age of menophania had a significantly decreasing effect on Stiffness, whereas three variables of regular exercise habits at present, body weight, and exercise histories had significantly increasing effects on Stiffness in multiple regression analysis.5. It is considered that there may be other important factors in the relationship between bone density and lifestyle of adolescent females who are in a developmental state. Therefore, the measurement of bone density and its assessment need consideration from points of view which are different from those for middle-aged and the elderly people.
- 著者
- Masafumi AKISAKA Liu ASATO Yin-Ching CHAN Makoto SUZUKI Tatsu UEZATO Shigeru YAMAMOTO
- 出版者
- Center for Academic Publications Japan
- 雑誌
- Journal of Nutritional Science and Vitaminology (ISSN:03014800)
- 巻号頁・発行日
- vol.42, no.3, pp.241-248, 1996 (Released:2009-04-28)
- 参考文献数
- 14
- 被引用文献数
- 12 19
Energy and nutrient requirements of younger people have been well studied, unlike that of centenarians. The average life span of the Japanese is the longest in the world, and the population of the very aged is rapidly growing. In addition, the average life span of Okinawan people is the longest in all of Japan. Their food habits also differ from other parts of Japan. To obtain basic dietary information, we surveyed 21 centenarians in Okinawa (17 women and 4 men). The dietary survey was done by one 24h recall method, as was done for centenarians living throughout Japan (3). The energy intake of the Okinawan centenarians living at home was about 1, 100 kcal/day for both sexes, which was similar to that of centenarians throughout Japan. Energy, some nutrient intakes and food consumption pattern (in terms of food groups) were different from those of the centenarians throughout Japan. We also measured their heights, weights, hematological values and activities of daily living (ADL). Comparison between the nutrient intakes and the recommended dietary allowances (RDAs) estimated for the centenarians showed that the estimated RDA of energy for the Okinawan centenarians might be less than their actual intakes.