• Journal of the Korea Convergence Society
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• v.9 no.5
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• pp.219-229
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• 2018

The purpose of this study was to investigate the relationship among Exercising Activity, muscle mass, Muscular strength and cognitive function of 274 elderly people aged 65 years and older living in Seoul and Gyeonggi-do As for the data collection methods, were measured the Exercising Activity, muscle mass and muscular strength and the Korean version of Mini Mental State Examination(MMSE-K) and digit span test were measured. The results are as follows First, there was a statistically significant correlation between Exercising activity, muscle mass, muscular strength, and cognitive function of the elderly. Second, Exercising activity of the elderly showed a positive (+) influence on muscle mass, muscular strength, and cognitive function. Third, the muscle mass of the elderly showed a statistically significant (+) influence on muscular strength and cognitive function. Fourth, the strength of the elderly showed a positive (+) influence on cognitive function.

• Journal of the Korean Society of Radiology
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• v.7 no.3
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• pp.199-204
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• 2013

Despite the suzerain of Korea Taekwondo physical activity and a corresponding lack of basic research on energy consumption and the status of this research is urgent. In this study, the sensor (SenseWear (R) PRO2 Armband), using physical activity were obtained in Taekwondo, and body composition data were obtained by Inbody 520, We were thigh scan using CT scanner and thigh muscle area by CT scan data were acquired. Result of analysis, average thigh muscle area of experimenter 8 people was 132.79 $cm^2$, Of 20 cm above the patella thigh was a 178.79 $cm^2$. Thigh circumference and muscle area showed that the correlation. The average energy consumption per minute was 6.94 calories, and thigh muscle area and average energy consumption per minute also showed that correlation.

• Proceedings of the Korea Information Processing Society Conference
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• 2024.05a
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• pp.702-704
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• 2024

최근 사회적으로 근감소증에 대한 관심이 높아지면서 노인성 근감소증 시장이 골다공증 시장을 뛰어 넘을 것으로 전망하고 있다. 진단 방법으로 의료영상기반으로 근육량을 인공지능 기술로 측정하여 근감소증 진단에 적용하는 연구가 활발하게 진행되고 있다. 본 논문에서는 복부 CT 영상에서 L3 부위의 근육량을 기반으로 한 진단 기준을 이용하여 아시아 피험자의 T-score를 기반으로 근감소증 진단을 자동화하였다. 특히 복부 CT영상의 업로드와 함께 자동으로 근육량을 측정하여 개인별 상태를 확인할 수 있도록하여 근감소증 진단을 지원 할 수 있도록 개발하였다. 그리고 이를 기반으로 4가지 간 질환 환자의 L3 부위 근육량을 측정하여 근감소증과의 상관성을 확인하였다. 이는 다양한 기저 질환과 근감소증과의 연관성 연구에 도움이 될 것으로 기대한다.

• Proceedings of the Korean Society of Food Hygiene and Safety Conference
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• 1998.04a
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• pp.71-71
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• 1998

수산용 향균제로 널리 사용되고 있는 옥소린산의 잔류량의 전북지역에서 시판중인 뱀장어 근육조직에서 측정하였다. 후배부 근육중의 옥소린산 잔류량은 시료에 따라 많은 차이가 있었으며 32%의 시료에서는 검출되지 않았다. 옥소린산이 검출된 시료중 16%에서는 그 농도가 0.1pm 이상이었다. 중요 장기중이 옥소린산 농도는 신장>간장>혈장>근육의 순이었다. 근육중의 옥소린산은 10분 가열에 의해 거의 감소되지 않았으며 30분 가열에 의해서는 원래 농도의 50%수준으로 감소하였으나 30분 가열 후의 시료는 심하게 탄화되었다. 고용량의 옥소린산을 실험실적으로 뱀장어에 투여하여 얻은 근육중의 농도나 수용액중의 옥소린산이 가열에 의해 파괴되는 경향을 검토함으로써 옥소린산의 열안정성이 확인되었다. 이 연구 결과는 뱀장어 소비자를 옥소린산 섭취로 부터 보호할 수 있는 규제의 강화가 필요함을 시사한다.

• 건강소식
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• v.35 no.6
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• pp.24-25
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• 2011

30세 이후 근력은 지속적으로 감소하며, 운동을 꾸준히 하지 않는 이상 60세 이후 30% 정도 소실되는 것으로 알려졌다. 근육량이 적어지면 기초대사량이 감소하여 쉽게 살이 찌고, 고혈압 등 만성질환 등에 노출되기 쉽다. 또한, 하체근력이 약화되면 걷기 등 일상생활에서 문제가 따르고, 낙상 등의 위험도 배가 된다. 따라서 건강한 노후생활을 즐기기 위해서는 근력을 유지하는 것이 필수라고 해도 무방하다.

• Journal of the Korean Society of Radiology
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• v.13 no.3
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• pp.391-398
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• 2019

The purpose of study is to investigate the difference of the daN force applied during the examination using Telos Device and the degree of fluctuation of anterior cruciate ligament according to the individual differences of the muscles involved in knee stability. The examination was done by the Lachman test using Telos Device and the changes of anterior cruciate ligament were measured by varying the force of 0. 15, 30 daN on each right and left side and the force of 30 daN after the bruce protocol. Computed tomography (CT) was used to measure muscle mass. As a result of measuring the degree of fluctuation of the anterior cruciate ligament according to the change of the force applied to the Telos Device, there was a statistically significant difference in the knee fluctuation when 15 daN and 30 daN were applied on both right and left. Also, it is analyzed that the degree of fluctuation of anterior cruciate ligament varies according to the difference of individual's muscle mass. Therefore, it is considered that the force applied to the Telos Device should be changed according to the difference of individual's muscle mass.

• Journal of Nutrition and Health
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• v.52 no.6
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• pp.581-592
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• 2019

Purpose: This study investigated major dietary patterns among healthy Korean adults using cluster analysis and analyzed the relationship between energy intake and skeletal muscle mass. Methods: This study was conducted using the data from the 2008 ~ 2010 Korea National Health and Nutrition Survey. The data of 7,922 subjects aged 30 years and over, without any missing values, were included in the final analysis. K-means cluster analyses were conducted to identify the dietary patterns of the study subjects, which were based on the energy intake from 21 food groups using a 24-h recall method. The changes in energy intake with each dietary pattern, according to quartiles of skeletal muscle mass, were investigated. Results: Three dietary patterns were identified for both men and women: 'Flour, Animal fat', 'White rice' and 'Healthy mixed diet'. The association between energy intake and skeletal muscle mass for both men and women was significant only in the 'White rice' dietary pattern. In the 'White rice' pattern, the energy intake increased up to > 300 kcal from the lowest to the highest quartile of skeletal muscle mass after adjustment for covariates. Within the 'White rice' pattern, skeletal muscle mass was linearly associated with energy intake in all the age groups in men. Conclusion: Energy intake was significantly associated with changes in skeletal muscle mass only in the 'White rice' pattern. Furthermore, the degree of association between the change in skeletal muscle mass and energy intake differed according to gender. These results indicate that the association between skeletal muscle mass and energy intake may be specific to Korean people who are accustomed to a traditional Korean diet.

• Journal of agricultural medicine and community health
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• v.39 no.4
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• pp.240-255
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• 2014

Objective: The purpose of this study was to identify the correlates of bone mineral density of Korean adults. Methods: This study was based on the data from the 2010-2011 Korean National Health and Nutrition Examination Survey (KNHANES, 2010~2011) V. Among 8,473 subjects of the survey, who were adults 19 years old or over with bone mineral density data, the current study excluded those whose data include a missing study variable or the response of 'I don't know', and finally analyzed the data of 5,986 subjects (2,692 males and 3,294 females). This study employed the following statistical methods of analysis: t-test, analysis of variance (ANOVA), and hierarchical multivariate linear regression analysis. Results: In multivariate analysis, in the case of men, the significant associated factors in bone mineral density were age, education level, body mass index (BMI), waist circumference, total muscle mass, exercise, and weight control; in the case of women, the significant associated factors in bone mineral density were age, education level, economic activity, BMI, total muscle mass, exercise, weight control. fat intake, uptake female hormone, menopause, and age of menarche. Conclusion: For both sexes, the strongest modifiable factor in influencing bone mineral density was total muscle mass. Therefore, to prevent osteoporosis and promote health, active health education and interventions such as regular exercise for total muscle mass increase should be implemented from an early growth period.

• Korean Journal of Ichthyology
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• v.23 no.1
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• pp.21-29
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• 2011

Expression analysis of development-related genes was conducted using differential screening of 6-month-old [18M(-), 6M-18M] specific and 18-month-old [6M(-), 18M-6M] specific subtracted cDNA libraries constructed by subtractive hybridization using skeletal muscle of 6- and 18-month-old dark-banded rockfish Sebastes inermis. A total 202 cDNA clones displaying different expression levels in each stage were obtained; among them, 32 clones showing up-regulation were finally selected for further expression analysis. We sequenced the clones and analyzed individual sequences. Genes expressed specifically in 6-month-old skeletal muscle were identified as myosin, adenylate kinase, calsequestrin, dystrobrevin beta, and diphosphate kinase-Z1. Genes showing strong expression in 18-month-old rockfish were identified as desmin, TGFBR2 (transforming growth factor-beta receptor), muscle-type creatine kinase, and cathepsin D. Expression of these genes was checked further in 6-18-30-42 month-old dark-banded rock fish. Rapid reduction of expression was observed in dystrobrevin beta and diphosphate kinase. However, expression of creatine kinase (muscle type) and cathepsin D increased as dark-banded rockfish grew, and remained even after 18 months. The results reported here demonstrate that genes related to muscles contract are expressed at an early stage of development, and genes controlling energy in muscles are predominantly expressed at a late developmental stage.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.9
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• pp.5888-5896
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• 2015

The purpose of this study was to examine the effect of Yoga and Pilates training on the obesity indexes, muscle mass in each body part and physical fitness of male college students in an effort to provide some clinical information on exercise prescription. The subjects in this study were 20 selected obese male students. A yoga group and a pilates group were organized with 10 students each, and the training was provided for 12 weeks, 5 times a week, 90 minutes each. The findings of the study were as follows: First, both of yoga and pilates made significant differences to obesity indexes(an increase in skeletal muscle mass, a decrease in BMI, a decrease in body fat rate and a decrease in WHR), to muscle mass in each body part(an increase in muscle mass on the right arm, left arm, trunk, right leg, and left leg), and to physical fitness(an increase in lower extremity muscle strength, muscular endurance, flexibility, left balance and right balance). Second, pilates exercised a more signifiant influence than yoga on an increase in skeletal muscle mass, the improvement of muscle mass in each body part(an increase in muscle mass on the right arm, left arm, trunk, right leg and left leg), and the improvement of balance(left and right). Third, yoga had a more significant impact on a decrease in BMI, body fat rate and WHR. Given the findings of the study, yoga and pilates seem to be efficient exercise programs to improve the obesity indexes of obese male college students and promote their health.