• Title/Summary/Keyword: 수영

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Effects of Relative Swimming Exercise Intensity on mRNA Expression of UCP-1, UCP-3 Brown Adipose Tissue and Blood Insulin, and Glucose in Rat (상대적 수영운동 강도가 흰쥐 갈색지방조직의 UCP-1과 UCP-3 mRNA 발현, 혈중 인슐린 및 혈당에 미치는 효과)

  • Yoon, Jin-Hwan;Oh, Myung-Jin;Seo, Tae-Beom;Kim, Jong-Oh;Jang, Moon-Nyeo;Park, Seong-Tae;Kim, Young-Pyo;Yoo, Jae-Hyun
    • Journal of Life Science
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    • v.19 no.2
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    • pp.213-218
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    • 2009
  • The purpose of this study was to investigate the UCP-1, UCP-3 mRNA expression in brown adipose tissue with glycometabolism according to intensity and duration of swimming in rat. F344 rat were randomly divided into three groups (n=10 in each group): control (CON), low-intensity swimming (LIS) groups, and high-intensity swimming (HIS) groups. Animals in the LIS group were forced to swim in swimming pool for 30min once a day for 8 consecutive weeks with a light intensity. In the HIS group, the rats repeated fifteen 20-s swimming bouts with a weight equivalent to 10% of body weight for 8weeks, respectively. The present result demonstrated that in LIS group, serum insulin and glucose levels significantly decreased in LIS group compared to CON. Brown adipose tissue UCP-1 and UCP-3mRNA expression was significantly increase in LIS group compared to CON and HIS groups. From those results, it can be suggested that low-intensity swimming may improve glycometablism control by up-regulating UCP-1 and UCP-3mRNA expression.

Dose-dependent effects of genistein on the improvement of obesity in a mouse model of postmenopausal women (폐경여성의 동물모델에서 비만개선에 대한 제니스테인의 농도 의존적인 영향)

  • Jeong, Sun-Hyo
    • Journal of the Korean Applied Science and Technology
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    • v.36 no.4
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    • pp.1153-1163
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    • 2019
  • In women, obesity rises with menopause. By comparing the dose-dopendent effects of genistein on regulation of body weight and lipid levels with swimming exercise in female ovariectomized (OVX) mice, an animal model of postmenopausal women, the effective dose of genistein on obesity control was investigated. Ovariectomized female mice were divided into control group, swimming exercise group and genistein concentration (0.005%, 0.05%, 0.1% wt/wt) treatment group and all mice fed high-fat diet for 8 weeks. The three different genistein doses as well as swimming decreased body weight, white adipose tissue mass, plasma lipid levels and lipid accumulation in liver, compared with control OVX mice. These decrease effectiveness of genistein showed dose-dependent manner, and is most effective at 0.1% genistein concentration, and paralleled effects of swimming on body weight, white adipose tissue, plasma lipid levels and lipid accumulation in liver. This present findings indicate that optimal dose of genistein in feamle OVX mice have a similar effect to swimming exercise on improvement of obesity. Intake of dietary genistein supplements will help obesity prevention in postmenopausal women.

Analysis of Isokinetic Strength on Ankle, Lumbar and Shoulder in Fin Swimmer (Fin 수영 선수의 족부, 요부 및 견갑부의 등속성 근 기능에 관한 연구)

  • Kim Sun-Ho;Ku Min;Min Bome-Il;Lee Hong-Min;Ko Young-Ho;Yoon Young-Bok
    • Proceedings of the Korea Contents Association Conference
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    • 2005.05a
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    • pp.156-164
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    • 2005
  • The aim of this study was to analyze the isokinetic strength of ankle, lumbar and shoulder in fin swimmers. For this study, 7 male fin swimmers and 7 men general swimmers were selected. Isokinetic strength of ankle, lumbar and shoulder were measured by Biodex System 3,000. Statistical techniques for data analysis were a descriptive statistics and t-test. The results of this study were as following; The first, significant difference between two groups in right and left plantar flexion of ankle at $30^{\circ}/sec\;and\;180^{\circ}/sec$. But no significant difference was found between right and left in two groups. The second, significant difference between two groups in right dorsiflexion of ankle at $30^{\circ}/sec$. The third, significant difference between two groups in extension of lumbar at $60^{\circ}/sec$. The fourth, significant difference between two groups in right flexing of shoulder at $60^{\circ}/sec$ and $180^{\circ}/sec$. As result of this conclusion, the isokinetic strength of ankle and lumbar in fin swimming group showed significantly higher than non-fin swimming group.

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Antimicrobial Activity of Lysimachia clethroides Duby Extracts on Food-borne Microorganisms (식중독 미생물에 대한 큰까치수영(Lysimachia clethroides Duby)의 항균활성)

  • Han, Ji-Sook;Shin, Dong-Hwa
    • Korean Journal of Food Science and Technology
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    • v.33 no.6
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    • pp.774-783
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    • 2001
  • The ethanol extract of 77 species of edible and medicinal plants were examined antimicrobial activity against 5 strains of Listeria monocytogenes ATCC 19111, ATCC 19112, ATCC 19113, ATCC 19114 and ATCC 15313 by optical density using Bioscreen C. The ethanol extract of Siegesbeckia glabrescens Makino, Jeffersonia dubia Benth, Aquilaria agallocha Roxburgh, Lysimachia clethroides Duby and Nardostachys chinensis Batal. exhibited comparatively strong growth inhibition effect on 5 strains of L. monocytogenes at 1000 ppm level in broth. The minimum inhibitory concentration (MIC) of ethanol extract of Lysimachia clethroides Duby was $100{\sim}500\;ppm$ on 5 strains of L. monocytogenes. The MIC of the n-hexane and chloroform fraction of the extract were same concentration as $50{\sim}100\;ppm$. The n-hexane fraction of Lysimachia clethroides Duby showed strong growth inhibition at 25 ppm on Vibrio parahaemolyticus for 72 hr at $30^{\circ}C$ and at 50 ppm on Bacillus cereus and at 500 ppm on Staphylococcus aureus and Escherichia coli.

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Relationship among the Expertise of University Liberal Arts Class Instructor, the Exercise Flow and Persistent Participation Intention Perceived by Non-Sports Major University Students (비체육 전공 대학생이 인지한 대학교 교양 수업 지도자의 전문성과 운동몰입 및 참여지속의도간의 관계)

  • Lee, Young Jun
    • Journal of the Korean Applied Science and Technology
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    • v.38 no.3
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    • pp.735-749
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    • 2021
  • There is true that the evaluation of non-face-to-face swimming classes currently offered by universities due to the COVID-19 outbreak is generally negative. For this reason, the quality of non-face-to-face swimming classes at universities is bound to depend on the expertise of the instructor. However, whether or not of students who lack of practices of swimming could experience exercise flow and could continuously last the swimming exercise after semester or even graduation is difficult to confirm. This is considered to be a significant threat in the future not only for swimming, but also for all liberal arts and lifestyle sports. This study aimed at 281 non-athletic college students with experience of taking both swimming classes, and the need for a study on the structural relationship between exercise flow and participation intention by university swimming class leaders' expertise in non-sports majoring college students. And the results were empirically analyzed. The research results derived in this process are summarized as follows. First, the effect of swimming class leader's expertise (personality, lecture skills, student management, practical skills, basic knowledge) perceived by non-athletic college students on exercise flow (cognitive flow, behavior flow) affects cognitive flow. As a factor influencing, it was found that lecture skills had a statistically positive (+) effect, and as factors influencing behavioral commitment, the positive (+) effect was statistically significant in personality, lecture skills, student management, and basic knowledge. Second, as for the effect of exercise commitment (cognitive commitment, behavior commitment) perceived by non-athletic college students on continuous participation intention, the behavioral commitment factor was found to have a statistically positive (+) effect.