Biomedical subjects
Hideaki Matsuki
Publications and source records attributed to Hideaki Matsuki.
[Analysis of factors affecting breakfast skipping by male students undergoing hard training for sports].
PURPOSE: The purpose of this survey was to find factors affecting breakfast skip rates for male students participating in sports, and to determine how to improve their nutrition. METHODS: The survey was conducted on 86 male students (58 who played sports and 28 who did not). A questionnaire was supplied to all, containing questions concerning daily food eating behavior. The student's answers were evaluated according to the guidelines of the Ministry of Health and Welfare. In addition, blood pressure, body mass index, and serum levels of uric acid, triglycerides and ferritin were measured in all subjects. RESULTS: The breakfast skip rate was 36% for the sports club affiliation group, and 46.4% for the non-affiliation group. Students who were not supplied with meals from their mothers or dormitory food service had more irregular meal times, skipped breakfast more, and drank less milk and miso soup often than the students supplied with meals. Students playing sports, but not supplied with meals, had a lower evaluation regarding eating habits and higher serum levels of serum uric acid and ferritin, compared to the students supplied with meals. CONCLUSIONS: The eating habits of male students are affected by whether they receive meals or not. It is considered that the higher levels of serum uric acid and ferritin in the students not supplied with meals is due to their irregular eating habits and heavy exercise. It is suggested that nutritional guidance is needed for such students.
Measurement of atmospheric NO2 concentrations in Antarctica with NO2 filter badge and tube.
Nitrogen dioxide (NO2) levels in Antarctica were monitored to determine background levels and distribution profile. The NO2 levels were higher than those reported from tropical remote areas. The NO2 concentrations gradually increased proceeding from the edge of the continent to the polar region, suggesting global pollutant transportation. To avoid artificial contamination of the data, a sled was used because motor vehicles discharge high levels of NO2. NO2 tubes and filter badges were selected as monitoring devices because of their convenience of transportation in Antarctica. They are small in size, light and easy-to-handle, and usually employed in personal NO2 exposure measurements. Because of severe Antarctica climate, the devices needed to be protected from the bitter cold. For that purpose, we designed an insulation container to shield the devices. The fixed NO2 monitoring site was Patriot Hill, located on the coast of the Weddell Sea. We also measured NO2 concentration along the expedition route from the fixed site to the South Pole, along with the 80 degrees west longitude. The survey periods were during November 1992 and January 1993. NO2 concentrations in Antarctica ranged from 1.0 to 2.8 ppb, which were relatively higher than previously reported background concentrations. The NO2 concentrations increased when nearing to the South Pole, supporting the theory that atmospheric circulation converges in the polar regions. This indicated that air pollutants discharged in populated regions were widely spread to isolated areas, like the South Pole.