• 생명과학회지
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• 제22권8호
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• pp.1085-1091
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• 2012

본 연구는 실내 외 운동 환경의 차이가 노년기 여성의 골밀도와 신체구성에 미치는 영향을 규명하는데 그 목적이 있다. 연구대상은 65세 이상 노년기 여성으로 실내운동집단 13명, 실외운동집단 13명 두 그룹으로 나누었으며, 20주간 운동프로그램을 실시하였다. 운동강도는 주3회, 1회 60분 동안 HRmax 50~70%, RPE 11~15로 점진적으로 증가시켰다. 결과는 다음과 같다. 첫째, 골밀도의 결과 집단 내 변화에서는 실외운동집단에서 유의하게 증가하였고, 집단 간 변화에서는 실외운동집단이 실내운동집단보다 유의하게 증가하였다. 둘째, 신체구성의 결과 집단 내 변화에서는 실내운동집단에서 체지방량이 유의하게 감소하였고, 실외운동집단에서 체중, 체질량지수, 체지방량이 유의하게 감소하였다. 집단 간의 변화에서는 체질량지수에서 실외운동집단이 실내운동집단보다 유의하게 감소하였다. 이와 같은 연구 결과들을 살펴볼 때 20주간 실외운동환경에서의 운동프로그램은 골밀도와 신체구성에 긍정적인 영향을 미친 것으로 나타났다.

• The Korean Journal of Medicine
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• 제93권6호
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• pp.548-555
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• 2018

목적: 혈액투석 환자에서 체수분 상태는 중요한데 혈액투석 이후의 과수분 상태는 고혈압, 부종, 심혈관계 합병증을 유발할 수 있다. 혈액투석 환자의 근육량 평가 및 체수분 상태를 측정할 수 있는 BIA 검사를 이용하여 혈액투석 환자에서 이환율, 생존율과 관련된 인자를 알아보고자 하였다. 방법: 본 연구는 후향적 연구로 2010년 1월부터 2015년 5월 30일까지 BIA를 측정한 말기 신부전으로 진단받고 투석을 3개월 이상 시행한 환자를 대상으로 하였으며, 2017년 6월 30일까지 추적 관찰하였다. 혈액투석 환자에서 시행하는 기본 혈액 검사와 BIA data (ECW, ICW, TBW, SLM, FFM, SMM 등)를 참조하여 환자의 이환율, 생존율 등을 분석하였다. 결과: 사망군과 생존군에서 SLM, SMM, FFM의 차이는 없었다. 생존군에서 사망군보다 나이, C-반응단백 수치가 낮았고, 혈청 알부민, 부갑상샘호르몬, 인이 높았으며, 총 체액량(TBW) 중 세포외액량(ECW)의 비율은 사망군에서 좀 더 높은 결과를 보였다($0.39{\pm}0.01$ vs. $0.40{\pm}0.01$; p < 0.05). 과수분군을 ECW/TBW ratio > 0.4로 정의하였을 때 Kaplan-Meier 생존분석에서 과수분군에서 통계적으로 유의하게 사망률이 높았다. 결론: 혈액투석 환자에서 BIA로 측정한 근육량 감소과 과수분 상태는 환자의 사망률과 이환율과 관련된 중요한 인자로 생각되며, 근육량 감소보다는 과수분 상태가 사망률과 좀 더 밀접한 관련이 있을 것으로 생각된다.

• 대한지역사회영양학회지
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• 제12권1호
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• pp.3-12
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• 2007

This study was performed to investigate the body image perception by BMI and the dietary behaviors in 803 college students(408 males and 395 females). The degree of obesity was divided into an underweight group with BMI less than $18.5kg/m^2$, a normal group with BMI of $18.5{\sim}22.9kg/m^2$, an overweight group with BMI of $23{\sim}24.9kg/m^2$ and an obese group with BMI over $25.0kg/m^2$. The average ages of subjects were 22.9 years in males and 20.2 years in females. The average weight and height of male subjects were 175.3 cm and 69.6 kg, respectively and those of female subjects were 162.5 cm and 52.0 kg, respectively. The average BMIs of male and female subjects were $22.6kg/m^2$ and $19.7kg/m^2$, respectively. The distribution of subjects who perceived their current body image as ideal body image was 25.7% in males and 10.9% in females, showing that the body image satisfaction of male subjects was 1.5 times higher than that of female subjects. Body image perception for their own bodies was mostly shown as the average or standard shape both in males and females with 64.2% and 54.2%, respectively, but males showed a higher perception rate than females and 31.1% of females and 19.5% of males perceived their bodies as lean shape(p<0.01). The body image satisfaction was 4.20 in males and 3.70 in females, showing more satisfaction in the male subjects(p<0.001). The correlation between body image and physical variables in male subjects indicated that CBI and IBI showed statistically significant correlation and also BMI showed statistically significant correlation with IBI(p<0.001) and CBI(p<0.001). The frequency of eating out increased as the frequency of skipping meals increased(p<0.001) and the frequency of having snacks increased as the frequency of eating out increased(p<0.01). The correlation between body image and physical variables in female subjects showed that CBI and IBI(p<0.001) had statistically significant correlation. Body weight showed statistically significant correlation with CBI(p<0.001), BMI(p<0.001) and height(p<0.001). The frequency of eating out increased as height(p<0.01) and the frequency of skipping meals(p<0.001) increased. When both male and female subjects wanted leaner body shapes, they preferred much leaner shapes despite their current body images belonging in the normal range. Additionally subjects preferred the body image in the normal range in cases when their current body images were lean. In particular, more female subjects had strong desires to become leaner in their body images than male subjects, which could be analyzed as a risk factor for physical him. From the above results, it is considered that both male and female subjects need to establish proper recognition and dietary behaviors for their body images and also need nutritional education and counseling for desirable weight control methods.

• 한국가정과학회지
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• 제9권4호
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• pp.83-93
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• 2006

This study was done for finding out if eating habits, eating behaviors were different between non-obese and obese elementary school students in Jeonju Area. Total 2568 students of 1364 male and 1204 female of the 4th, 5th, and 6th year in 5 elementary schools were surveyed and the statistics of the result was analyzed by SPSS program. The results are summarized as follows: 1. Obesity was defined as Body Mass Index(BMI) that exceeded 85th and Obesity Index(OI) that exceeded 110. First, subjects were divided into 4 groups : lean, normal, overweight and obese. Second subjects were reclassified into non-obese(lean and normal) and obese(overweight and obese) groups. Average height of male and female students were 142.5cm, 143.1cm and weight of those were 36.4kg and 37.9kg respectively. 2. As results of obesity computation, obese male students were 19.6%(overweight 11.3%, obese 8.3%) in BMI and obese male students were 25.0%(overweight 12.5.%, obese 12.5%) in OI. Especially Obesity percent rate of male student were significantly higher on that of female student in OI method. 3. Examining obesity between male and female, there were statistically different between male students and female students in OI, but there were not statistically different in BMI. With regard to grade level(4th, 5th, 6th), there were statistically different among grade levels. 4. Examining correlation between eating habits(eating behaviors) and obesity, there were statistically significant in some cases. For example, there were statistically significant correlation between fast eating habit and obesity. And the relation analysis of general environments and obesity showed that there were statistically significant in some cases. These results suggest that the number of overweight students can be increased due to the amount and kinds of food children have as well as the general causes of overweight such as genetic, environmental and psychological reason. Surveying about children's eating habits, eating behaviors this study methodically. Working with parents is necessary and comparison of eating habits, eating behaviors and nutrition knowledge between the past and their presents are also needed in a future.

• 한국방사선학회논문지
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• 제11권2호
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• pp.145-155
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• 2017

본 연구는 최근 6개월 이내에 특별한 식이 요법이나 정기적으로 약물을 복용하지 않고 규칙적인 신체활동을 하지 않은 폐경 전 성인여성이 복합운동에 따른 신체조성 및 골밀도의 변화를 비교, 분석하고자 수행되었으며 이 결과는 폐경 전 성인여성의 건강 및 운동실시에 대한 중요성을 인식시킬 수 있을 뿐만 아니라 한번 발생하게 되면 치료나 완치가 어려운 골다공증 예방교육을 조기에 실시하고 관리능력을 배양하는 교육프로그램 개발을 위한 기초자료를 제공하고자 한다. 연구대상자의 30대 평균 연령은 35.44세, 신장은 30대 평균 158.89 cm이고, 40대 평균 연령은 41.89세, 40대 평균 신장은 160.78 cm를 차지했다. 신체 조성에서 근육 량, BMI, 체지방률의 평균은 30대에서 높았고, 골무기질, 제지방량, 골격근량, 체중, 체지방량, 허리둘레의 평균은 40대에서 높았다. 요추골밀도 및 대퇴골밀도는 30대가 40대보다 높았다. 폐경 전 성인여성의 연령별 복합운동에 의한 30대 신체조성은 근육량, 골격근량, 제지방량은 증가하였고, 체지방량, 체중, 체지방률, 허리둘레는 감소하였다. 40대 신체조성 중 근육량은 증가 하였으며, 체중, 체지방량, 체지방률, BMI는 감소하였다. 30대 골밀도 변화는 요추골밀도는 요추 1번, 요추2번, 요추3번, 요추전체, 대퇴골밀도는 대퇴 각 부위에서 증가하였고, 40대 골밀도 변화는 요추골밀도는 요추 각 부위, 대퇴골밀도는 대퇴 각 부위에서 증가하였다. 사후분석 결과에서 신체조성의 변화는 복합운동 후 근육량, 체중, 체지방량, BMI는 감소하여 통계적으로 유의하게 나타났으며, 골밀도의 변화에서 요추골밀도는 요추1번, 요추2번, 요추3번, 요추전체에서 유의하게 증가하였고, 대퇴골밀도는 대퇴삼각과 대퇴전체에서 증가하여 통계적으로 유의한 결과가 나타났다.

• The Korean Journal of Physiology and Pharmacology
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• 제18권5호
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• pp.441-446
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• 2014

Ursolic acid (UA), a type of pentacyclic triterpenoid carboxylic acid purified from natural plants, can promote skeletal muscle development. We measured the effect of resistance training (RT) with/without UA on skeletal muscle development and related factors in men. Sixteen healthy male participants (age, $29.37{\pm}5.14$ years; body mass index=$27.13{\pm}2.16kg/m^2$) were randomly assigned to RT (n=7) or RT with UA (RT+UA, n=9) groups. Both groups completed 8 weeks of intervention consisting of 5 sets of 26 exercises, with 10~15 repetitions at 60~80% of 1 repetition maximum and a 60~90-s rest interval between sets, performed 6 times/week. UA or placebo was orally ingested as 1 capsule 3 times/day for 8 weeks. The following factors were measured pre-and post-intervention: body composition, insulin, insulin-like growth factor-1 (IGF-1), irisin, and skeletal muscle strength. Body fat percentage was significantly decreased (p<0.001) in the RT+UA group, despite body weight, body mass index, lean body mass, glucose, and insulin levels remaining unchanged. IGF-1 and irisin were significantly increased compared with baseline levels in the RT+UA group (p<0.05). Maximal right and left extension (p<0.01), right flexion (p<0.05), and left flexion (p<0.001) were significantly increased compared with baseline levels in the RT+UA group. These findings suggest that UA-induced elevation of serum irisin may be useful as an agent for the enhancement of skeletal muscle strength during RT.

• 산업경영시스템학회지
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• 제39권4호
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• pp.106-116
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• 2016

MTO (Make to Order) is a manufacturing process in which manufacturing starts only after a customer's order is received. Manufacturing after receiving customer's orders means to start a pull-type supply chain operation because manufacturing is performed when demand is confirmed, i.e. being pulled by demand (The opposite business model is to manufacture products for stock MTS (Make to Stock), which is push-type production). There are also BTO (Build to Order) and ATO (Assemble To Order) in which assembly starts according to demand. Lean manufacturing by MTO is very efficient system. Nevertheless, the process industry, generally, which has a high fixed cost burden due to large-scale investment is suitable for mass production of small pieces or 'mass customization' defined recently. The process industry produces large quantities at one time because of the lack of manufacturing flexibility due to long time for model change or job change, and high loss during line-down (shutdown). As a result, it has a lot of inventory and costs are increased. In order to reduce the cost due to the characteristics of the process industry, which has a high fixed cost per hour, it operates a stock production system in which it is made and sold regardless of the order of the customer. Therefore, in a business environment where the external environment changes greatly, the inventory is not sold and it becomes obsolete. As a result, the company's costs increase, profits fall, and it make more difficult to survive in the competition. Based on the customer's order, we have built a new method for order system to meet the characteristics of the process industry by producing it as a high-profitable model. The design elements are designed by deriving the functions to satisfy the Y by collecting the internal and external VOC (voice of customer), and the design elements are verified through the conversion function. And the Y is satisfied through the pilot test verified and supplemented. By operating this make to order system, we have reduced bad inventories, lowered costs, and improved lead time in terms of delivery competitiveness. Make to order system in the process industry is effective for the display glass industry, for example, B and C groups which are non-flagship models, have confirmed that the line is down when there is no order, and A group which is flagship model, have confirmed stock production when there is no order.

• 대한한의학방제학회지
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• 제25권2호
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• pp.193-207
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• 2017

Objectives : This study was designed to investigate anti-obesity effects of DF in a ob/ob mouse model. Methods : Fifteen-week-old ob/ob mice were divided into four groups: a normal lean group given a standard diet, an ob/ob control group given a standard diet, and DF(1) and DF(2) groups given a standard diet with DF(1) (300 mg/kg), and DF(2) (600 mg/kg), respectively. After 10 weeks of treatment, body weight gain, feeding efficiency ratio, blood lipid markers, fat weight and histology were examined. Results : Body weight gain and fat mass were significantly decreased in DF(1) and DF(2) groups compared with control. The extent of decreases was eminent in DF(2) group. Feeding efficiency ratio were significantly decreased in DF(2) group compared with control. Consistent with their effects on body weight gain and fat mass, circulating concentrations of LDL, total cholesterol, free fatty acid, and insulin were decreased in DF(2) group compared with control. The size of adipocytes were significantly decreased by DF(2) compared with control. Consistent with their effects on body weight gain, hepatic lipid accumulation and liver weights were reduced in DF compared with control. Conclusions : In conclusion, these results suggest that DF not only decrease feeding efficiency ratio, and blood anti-obesity biomarkers, but also reduce fat mass, contributing to the improvement of obesity. DF also inhibits hepatic lipid accumulation.

• 대한영양사협회학술지
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• 제22권4호
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• pp.292-309
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• 2016

The purpose of this study was to verify the validity of Mealworms as a hospital meal with increased nutrition density. We provided a meal for postoperative patients and conducted analysis of dietary intake and nutritional status of patients and assessment of acceptability of the meal. This study was carried out as a randomized control trial. Patients were supplied either a hospital meal using Mealworms (Experimental group) or a regular hospital meal (Control group). We investigated the administration amounts of parenteral nutrition (PN) and food intake of patients after surgery and measured anthropometry, body composition, and blood tests before surgery and at hospital discharge. We included 34 postoperative patients who were admitted to Gangnam Severance Hospital from March to September. In the groups of patients not supplied with PN, the experimental group ($964.68{\pm}284.6kcal$, $38.82{\pm}12.9g$) had significantly higher dietary calorie and protein intake than the control group ($666.62{\pm}153.7kcal$, $24.47{\pm}4.9g$)(P<0.05). Additionally in the group of patients not supplied with PN, the experimental group (1.37%) showed a significantly higher increase in fat free mass index than the control group (-3.46%)(P<0.05). In all subjects, calorie density and protein density were significantly higher in the experimental group (P<0.001), and acceptability of calorie (P=0.036) and protein (P=0.001) was also significantly higher in the experimental group. Therefore, the results of this study support the validity of the introduction of hospital meals using Mealworms.

• 동아시아식생활학회지
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• 제18권5호
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• pp.725-731
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• 2008

The principal objective of this study was to assess the effects of low-calorie diets(LCD) for 8 weeks of medical nutrition therapy in individuals with BMI in excess of $23\;kg/m^2$. 41 over-weight or obese individuals (male=14, female=27, age $28.6{\pm}8.9\;yrs$), none of whom were diagnosed with a medical disease, were administered MNT 4 times over the study period. Approximately $1,100{\sim}1,300\;kcal/day$ were prescribed by a dietitian, via individualized counseling. Anthropometric parameters, daily nutrient intake, and blood levels of leptin, insulin, and lipid profiles were measured prior to and after the 8 weeks of the intervention period. We noted significant reductions in body weight, body mass index (BMI), fat mass (FM), visceral adipose tissue (VAT), abdominal skin-fold thickness, and waist circumference in both men and women. The mean body weight losses in men and women were $3.2{\pm}0.6\;kg$/8 weeks and $2.8{\pm}0.6\;kg$/8 weeks, respectively. However, the % of lean body mass (LBM) in men and women was shown to increase significantly (p<0.05). The daily intake of calorie, fat, protein, vitamin E, folate, and iron were significantly reduced during the LCD period. Blood levels of lipids and glucose were in normal range, and evidenced no changes after LCD. However, the serum levels of leptin in female subjects were significantly reduced (p<0.00l) from $8.9{\pm}4.8\;ng/mL$ to $6.9{\pm}4.8\;ng/mL$. In conclusion, 8 weeks of LCD with individualized counseling by a dietitian effectively reduced body fat and visceral fat in both men and women with BMI in excess of $23\;kg/m^2$.