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김혜영 ( Hye Young P. Kim ),최지영 ( Jee Young Choi ) 한국운동영양학회 2004 Physical Activity and Nutrition (Phys Act Nutr) Vol.8 No.2
This study was performed to investigate the changes in immune status of rats by dietary iron and regular exercise. Male Sprague Dawley rats (n = 40) were divided into 4 groups by dietary iron (Fe^(-), 5 ppm Fe vs. Fe^(+), 50 ppm Fe) and exercise (control vs. exercise). Rats were given experimental diets for 8 weeks. Regular treadmill exercise (6˚, 28 m/ min, 30 minutes duration) was given to exercise groups 5 days per week for 8 weeks. Iron deficient rats decreased hematocrit (47.5% vs. 39.8%) and hemoglobin concentration (16.0 g/dl vs. 12.3 g/dl) compared to iron sufficient rats and were in a marginal marginally iron-deficient-anemic status. Immunoglobulin(Ig) A level was significantly increased by regular exercise. IgG level was also significantly increased by regular exercise in Fe^(+) group, but was decreased in Fe^(-) group. Spleen cell proliferation by Con A stimulation showed an increasing tendency in exercising Fe^(+) group, but significant difference was not found. IL-2 concentration showed an increasing tendency with regular exercise, but statistical difference was not found. IL-2 and IFNy were not significantly affected by dietary iron level of this study. It is likely that regular exercise significantly increases plasma Ig A and sufficient supply of dietary iron is necessary for the enhancement of immune response with regular exercise.
채소섭취 변화단계에 따른 초등학생의 채소 식행동과 기호도
백지영 ( Ji Young Baek ),김혜영 ( Hye Young P. Kim ) 한국식생활문화학회 2009 韓國食生活文化學會誌 Vol.24 No.2
This study was conducted to investigate the vegetable eating behaviors and preferences of elementary school students by stage of change for vegetable intake. The subjects consisted of 191 fourth and fifth grade elementary school students from Gyeonggi province. The stage of change for vegetable intake was categorized into three groups: precontemplation (PC, 18.4%), preparation (P, 43.5%), and action/maintenance (A&M, 48.2%). The trend to eat a variety of foods was more distinctive as the students went from the PC to the A&M stage. The stage of change for vegetable intake was closely related with the kimchi-eating pattern of the students. The A&M group ate more vegetables than the PC group because they liked vegetables and/or wanted to prevent disease. The PC group had a lower tendency to follow recommendations for vegetable eating than the P and A&M groups. The PC group also had an incorrect notion that low vegetable consumption over an extended time would not have a big impact on their health. The vegetables of high preference for the elementary school students were potato, sweet potato, lettuce, radish, perilla leaf, cucumber, and cabbage. The vegetables of low preference were spinach, onion, balloon flower, and green pepper. The PC group had lower preferences for most vegetables than the P and A&M groups. Therefore, careful nutrition education is necessary especially for students in the PC group in order to explain the positive effects of vegetable intake and negative effects of an unbalanced diet. It is also necessary to survey students` tastes consistently and to develop recipes that encourage them to consume more vegetables agreeably.
중학생의 성격유형과 사회심리적 요인 및 식습관과의 관계연구
김혜성(Hye Sung Kim),김혜영(Hye Young P. Kim) 대한지역사회영양학회 2007 대한지역사회영양학회지 Vol.12 No.5
The purpose of this study was to obtain an understanding of the association of personality preferences and food behavior factors in middle school students. The subjects were 319 boys and girls in a middle school located in Kyunggi province. A self-administered questionnaire was used to assess demographic factors, dietary habits and psychosocial factors including self-efficacy, perceived benefits and barriers. The MMTIC (Murphy-Meisgeier Type Inventory for Children) test was used to assess the personality preferences of the students. Sixty-seven percent of the subjects were extrovert, 53.9% were the sensing type, 76.8% were the feeling type and 81.8% were the perceiving type in personality preferences. The extrovert had higher self-efficacy than the introvert. The feeling type perceived more benefits and fewer barriers than the thinking type. The education levels of the parents, especially mothers, were positively related with self-efficacy and dietary habit scores of the students. The self-efficacy and perceived benefits and barriers were significantly associated with dietary habits of the students (explained variance: 17.9%). Results of this study presented the relationship of character types and parents` education levels on psychosocial food behavior factors and a need for the development of tailored nutrition education program considering these factors. (Korean J Community Nutrition 12(5) : 511~518, 2007)
철분과 운동이 흰쥐의 헴 생합성과 지질 대사에 미치는 영향
최지영(Jee-Young Choi),김혜영(Hye-Young P. Kim) 한국식품영양과학회 2005 한국식품영양과학회지 Vol.34 No.5
본 연구는 식이 철과 운동이 흰쥐의 헴 생합성과 지질대사에 미치는 영향을 살펴보고자 수행되었다. 쥐는 식이 철의 수준에 따라 철결핍군(Fe^-, 5 ppm)과 철 충분군(Fe^+, 50 ppm)으로 나누고 규칙적인 운동 여부에 따라 운동군과 대조군으로 나누었다. 실험 식이의 공급과 운동을 시킨 기간은 8주였으며, 운동군은 경사 6도에서 28 m/min의 속도로 1회 30분씩 일주일에 5회씩 트레이드밀 운동을 시켰다. 그 결과 흰쥐의 헴 생합성 정도는 운동을 한 군에서 유의적으로 증가하는 것으로 나타났다. 운동은 또한 체중 증가량을 낮추고, 부고환지방량을 감소시켰으며, 혈중 중성지방과 콜레스테롤 수치를 낮추고 HDL-콜레스테롤의 수치를 증가시켰다. 한편, 식이 철의 부족은 헤마토크리트와 헤모글로빈 농도를 감소시켰으며, 간 콜레스테롤의 축적을 증가시켰다. 앞으로 인체를 대상으로 철분 수준이 다른 상태에서의 운동이 헴의 생합성, 지질대사 및 젖산 농도 등에 어떠한 영향을 미치는지에 대한 연구가 더 많이 이루어져야 할 것으로 사료된다. This study was performed to investigate the effect of dietary iron and exercise on heme biosynthesis and lipid metabolism of rats. Rats were divided into 4 groups according to dietary iron supplement (Fe^-, 5 ppm vs. Fe^+, 50 ppm) and exercise status (control vs. exercise). The experiment continued for 8 weeks. Regular treadmill exercise (6°, 28 m/min, 30 min duration, 5 days/week) was given to exercise groups. The aminole- vulinate dehydrase activity of red blood cell, the marker of heme biosynthesis, was significantly increased in the exercise group. Regular aerobic exercise reduced body weight and epidydimal fat pad gain. Regular exercise also significantly decreased the plasma triglyceride, cholesterol and HDL-cholesterol of the rats. Meanwhile, the iron deficiency decreased the hematocrit and hemoglobin concentration and increased the accumulation of liver cholesterol.
이옥희,김혜영(A),김순희,김희경 용인대학교 자연과학연구소 2004 自然科學硏究所論文誌 Vol.9 No.1
Nowadays the prevalence of obesity is increasing not only among western country peoples, but also among Koreans. As obesity and high body weight are associated with incidences of various chronic diseases, the prevention and therapy of obesity are very important. Obesity can simply be defined as the excess of energy consumption over energy expenditure. Dietary habits, food intake, and life style are determining factors of the energy balance, energy consumption and expenditure. Therefore, this study is aimed to compare the dietary habits, food intake frequency and life styles of obese young women with non-obese correspondents. The study result showed that there are high irregularity of dietary intake habits in obese women as compared to the non-obese women. The obese women prefer to eat meat, egg, and fish, processed food, salty food, and sugary food with higher frequencies compared to non-obese. The young obese women showed, however, lower intake frequency of fruit and fruit juice, vegetables than non-obese women. There were no particular differences in activity level, alcohol intake, satisfaction on health, sleeping hours. In conclusion, this study showed that to prevent obesity among young adult women changes in dietary intake habits and food selection are necessary