• Preventive Nutrition and Food Science
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• 제3권2호
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• pp.186-192
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• 1998

This study was conducted to investigate the relationship among prevalence of obesity, nutritional status and factors related to obesity of women who exercise regularly. The subjects of this study were 100 women who have been exercising regularly for more than 6 months. They were mostly housewives ages 24 to 63 years and had graduated middle or high school. Their average income was form 700 to 1,500 thousand won per month and most of them had 2 r 3 children. They sleep usually 6~8 hours a day. Most of physical indices of obesity were increased progressively with age. Among them , weight (61.5$\pm$1.4kg), subscapular (16.3$\pm$1.4mm) and abdomen(31.4$\pm$1.2mm) skinfold thickness were higher in 50 years than in others. BMI after exericse was decreased compared with BMI before exericise. WHR was 0.82 in 40 years and 0.85$\pm$0.01 in 50- to 60- year-old group. The percentage of body fat increased with advancing years and the highest values were shown in 50 - to 60-year old group (skyndex value : 38.6$\pm$0.6, BIA value : 28.7$\pm$0.8<0.05). The prevalence of obesity was measured by bioelectrical impedance fatness analyzer (BIA), obdy mass index (BMI) and skinfold thickness were 17.0%, 24.0% and 78.0% respectively. Most subjects were in good nutritional status, but in the subjects aged 24~49, energy (89.3%), iron (93.3%) and vit. A (97.4%) intake were slighltyl lower than the RDA. Energy intake was slightly insufficient tot he 50-63year old subjects (88.6%) compared with RDA. It seemed that they restricted calorie intake for the weight control. The energy percentage of carbohydrate, fat and protein was 65 : 20 : 15, the result of which came closed to the recommended calorei composition. There were positive correlations between obesity and other variable such as age. number of childeren and physical indics.

• Nutrition Research and Practice
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• 제17권6호
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• pp.1238-1254
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• 2023

BACKGROUND/OBJECTIVES: Weight loss via a mobile application (App) or a paper-based diary (Paper) may confer favorable metabolic and anthropometric changes. SUBJECTS/METHODS: A randomized parallel trial was conducted among 57 adults whose body mass indices (BMIs) were 25 kg/m² or greater. Participants randomly assigned to either the App group (n = 30) or the Paper group (n = 27) were advised to record their foods and supplements through App or Paper during the 12-week intervention period. Relative changes of anthropometries and biomarker levels were compared between the 2 intervention groups. Untargeted metabolic profiling was identified to discriminate metabolic profiles. RESULTS: Out of the 57 participants, 54 participants completed the trial. Changes in body weight and BMI were not significantly different between the 2 groups (P = 0.11). However, body fat and low-density lipoprotein (LDL)-cholesterol levels increased in the App group but decreased in the Paper group, and the difference was statistically significant (P = 0.03 for body fat and 0.02 for LDL-cholesterol). In the metabolomics analysis, decreases in methylglyoxal and (S)-malate in pyruvate metabolism and phosphatidylcholine (lecithin) in linoleic acid metabolism from pre- to post-intervention were observed in the Paper group. CONCLUSIONS: In the 12-week randomized parallel trial of weight loss through a App or a Paper, we found no significant difference in change in BMI or weight between the App and Paper groups, but improvement in body fatness and LDL-cholesterol levels only in the Paper group under the circumstances with minimal contact by dietitians or health care providers.

• 한국수산과학회지
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• 제17권3호
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• pp.206-218
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• 1984

낙동강하구에 위치한 부산 다대포 앞바다에서 1982년 9월부터 1983년 8월까지 채집된 전어, Kenosirus punctatus(TEMMINCK et SCHLEGEL)를 대상으로 생식생물학적 조사를 한 결과는 다음과 같다. 1. 전어의 난소는 경골어류의 전형적인 낭상형이고 정소는 엽상형을 나타내고 있다. 2. 생식소숙도지수는 수컷과 암컷이 각각 5, 6월이 연중 최대값을 나타내며, 수컷이 한 달 빨리 최대값에 도달한다. 이들 생식소는 수온 상승과 함께 활성화되어 고수온기전에 산란기를 마친다. 3. 산란기를 지난 개체의 난소내에는 성장에 관여하지 않은 초기난모세포들이 휴지기 상태로 월동하여 이듬해 성장에 참여하고 있다. 4. 생식주기는 수온상승이 시작되는 3월부터 활성화되어 성장기를 맞이하며 $4{\sim}5$월에는 성숙기가 되고 6월에 접어들어 1달이내 단기간의 완숙 및 산란기를 맞게 된다. 이후 7월에서 이듬해 성장기까지 회복 및 휴지기 상태를 나타낸다. 5. 전어개체군들은 난경조성의 조사 결과, 한 산란기 동안 적어도 2회 이상 산란하는 다회산란종으로 밝혀졌다. 6. 비만도의 변화는 암${\cdot}$수 모두 방란${\cdot}$방정에 의한 감소보다 계절적 수온변화와 밀접한 관계를 나타내고 있어 먹이 섭취량에 더욱 의존되는 것 같다. 7. 전장 $17.0{\sim}18.0cm$에서 군성숙도 $50\%$ 이상에 달하며, $18.0{\sim}19.0cm$에서는 전개체가 성숙에 참여했다. 또 각각의 포란수는 179개/cm, 291개/cm로서 체장이 증가함에 따라 포란수도 증가한다. 8. 생식소 성숙에 따라 뇌하수체 GTH cell의 활성과 분포면적이 확대되고 있으며, 난황축적을 완료한 난모세포를 가진 완숙개체들은 GTH cell의 활성이 퇴화되고 그 분포면적이 줄어든다.

• 보건교육건강증진학회지
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• 제15권1호
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• pp.179-194
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• 1998

This study focused on the body composition of Korean Basketball Players in Dual X -ray Absorptiometry. The principal subjects of this study were 10 Basketball Players who participated in the process of Dual Energy X -ray Absorptiometry at K.H. University Hospital for 8 months from Sept. 1. 1996 to April, 30. 1997. On the basis of the these measurements, the authors calculated physical indices and total fat percent. On the results of bone densitometry, the author analyzed body fat weight, body composition according to body position, bone mineral density and discerned the difference between the fatness which was calculated indirectly and which gained from the bone densitometry. 1. General Characteristics The mean age of the subjects was 20.4$\times$1.35 year. 2. Physical. Measurement The mean physical growth and development of the subjects were superior to standard value of the average Koreans 3. Body Fat by Physical Measurement Body surface area was 2.019$\times$0.111$m^2$, body volume was 74.4$\times$7.2$\ell$, body density was 1.041$\times$0.007$\ell$/kg, and body fat percent was 24.9$\times$2.9%. 4. Body Fat by Bone Densitometry Total body fat percent was 15.17$\times$2.19% and according to body position that of upper limb was 1.62%, that of lower limb was 5.55%, that of trunk was 7.06% and that of head was 1.05%. There was significant difference between the amounts of body fat from the methods used in this study; that from physical measurements and from bone densitometry method could be said most desirable. 5. Body composition According to Body Position Trunk was highest at 46.7%, lower limb was 36.0%, upper limb was 10.6%, and head was 6.7% in order. 6. Bone Mineral Content and Bone Density In bone mineral amount by body position, that of upper limb was 466.9$\times$46.4g, that of lower limb was 1,424.1$\times$154.0g, that of trunk was 1,343.0$\times$150.3g, and total bone mineral content was 3,786.8$\times$348.4g(4.78$\times$0.13%). Bone mineral density by body position, that of upper limb was 0.758$\times$0.072g/$\textrm{cm}^2$, that of lower limb was 1,342$\times$0.095g/$\textrm{cm}^2$, that of trunk was 1,169$\textrm{cm}^2$0.082g/$\textrm{cm}^2$, that of head was 1,742$\times$0.154g/$\textrm{cm}^2$ and total bone mineral density was 1,204$\times$0.077g/$\textrm{cm}^2$.