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그룹운동 프로그램의 참여중지가 여자 청소년의 신체구성, 심폐체력 그리고 정신신경면역계에 미치는 영향
변정은 ( Byun Jung-eun ),구정훈 ( Gu Jung-hoon ),강은범 ( Kang Eun-bum ) 한국체육대학교 체육과학연구소 2019 스포츠사이언스 Vol.36 No.2
The purpose of this study was to investigate the effects of group exercise and detraining on body composition, cardiorespiratory fitness and psychoneuroimmunological factors in female adolescents. Thirty-three female adolescents were divided into three groups, control (CON; n = 11), running exercise (RE; n = 11), and group exercise (GX; n = 11) and these were used for the analysis. For all subjects, measurements of body composition, cardiorespiratory fitness, psychoneuroimmunological factors, and serum neuroimmunological factors were completed before and after detraining. First, the changes in maximal oxygen uptake and exercise duration were significantly lower in RE and GX compared with the CON group, and it was significantly decreased after detraining than before detraining, but maximum heart rate was no significant difference in the level of change between groups. The change of serum n BDNF was significantly lower in RE and GX compared with the CON group, but IL-6, MCP-1, TNF-α were no significant difference in the level of change between groups. Finally, body composition(body weight, percentage of body fat, BMI) and mental stress(stress, depression and self-confidence) were no significant difference in the level of change between groups. Collectively, this indicates that 4 weeks of detraining can have negative effect on the cardiorespiratory fitness and BDNF in female adolescents. If more specific studies were conducted according to the participation period and detraining period of the exercise program, the most appropriate exercise duration period and the period of detraining will be revealed which may contribute to be provide the optimal exercise program effective for physical health and psychoneuroimmunological for the female adolescents.
그룹운동 프로그램이 여자 청소년들의 체력과 정신신경면역계에 미치는 영향
변정은(Byun Jung Eun),구정훈(Koo Jung Hoon) 한국발육발달학회 2018 한국발육발달학회지 Vol.26 No.4
The purpose of this study was to investigate the effects of group exercise on physical fitness and psychoneuroimmunological factors in female adolescents. Thirty-three female adolescents were divided into three groups, control (CON; n = 11), running exercise (RE; n = 11), and group exercise (GX; n = 11) for 12 weeks of the exercise intervention. For all subjects, measurements of body composition, cardiovascular function, psychological factors, and serum neuroimmunological factors were completed before and after the 12-week intervention. First, the changes in mental stress were significantly lower in RE and GX compared with the CON group, and it was significantly decreased following the exercise intervention in RE and GX groups. Although there was no significant difference in the level of change between groups in depression and self-confidence, it was only reduced following GX intervention in GX group. The changes in peak oxygen uptake and exercise time were significantly greater in the RE and GX compared to the CON group, and it was increased after exercise intervention in RE and GX groups. The changes in percentage of body fat(BF%) were significantly lower in the GX compared to the CON group. The changes in lean body mass(LBM) were significantly greater in RE and GX compared to the CON group. Moreover, BF% was decreased whereas LBM was increased in the GX group after the exercise intervention. Finally, the changes in tumor necrosis factor alpha were only reduced in the RE group, resulting in significantly lower changes compared with CON and GX groups. More interestingly, although no significant differences were found between groups, brain-derived neurotrophic factor(BDNF) was increased following the exercise intervention in the GX group only. These findings demonstrate that GX will result in decreased BF% and increased LBM, and cardiovascular function. In addition, GX significantly decreases stress, and depression, but increases self-confidence and BDNF. Collectively, this indicates that 12 weeks of GX intervention can have a positive effect on body composition, physical fitness, and neurological function, which may contribute to improvements in psychological factors in female adolescents.
Group Exercise 프로그램에 참여한 중년 여성의 운동중독, 신체적 자기효능감, 생활만족의 인과관계
변정은(Jung Eun Byun),정희정(Hee Jung Jung),이준우(Jun Woo Lee) 한국여가레크리에이션학회 2010 한국여가레크리에이션학회지 Vol.34 No.3
Purpose of this study is to analyze the causality among exercise addiction, physical self-efficacy, and life satisfaction through the middle aged women participated in GX Program. For this study, the data of 284 was collected from middle aged women participated in GX program at the sports center in Seoul and Kyeonggi province and analyzed with SPSS 15.0 and AMOS 7.0 program. he results of this study were as follows: First, the middle aged women participants` exercise addiction form GX program had a positive influence on the physical self-efficacy, and life satisfaction. Second, the middle aged women participants` physical self-efficacy from GX program had a positive influence on the life satisfaction. In conclusion, the causality was established from the structure of research model.
피부과 영역에서의 전기수술의 원리와 임상적 사용에 대한 고찰
변은정 ( Eun Jung Byun ),조성빈 ( Sung Bin Cho ),김혜성 ( Hei Sung Kim ) 대한피부과학회 2016 대한피부과학회지 Vol.54 No.7
The term electrosurgery refers to the passage of high-frequency alternating electrical current through the tissue, to achieve a specific surgical effect. It is used in everyday dermatologic practice for various purposes, including tissue dissection, bleeding control, and the removal of common skin lesions such as viral warts, melanocytic nevi, and cherry angiomas. Considering the nature of the device, adverse effects including skin burn and scarring can occur at any stage of the procedure. Therefore, it is essential that electrosurgery be performed by skilled and well-trained physicians. In this paper, we introduce a brief history of electrosurgery and present its categories and their clinical uses. In addition, the possible adverse effects and safety measures of electrosurgery are addressed. (Korean J Dermatol 2016;54(7):503∼508)
변은정(Eun Jung Byun),박주애(Joo Ae Park),이승진(Seung Jin Lee),김길수(Kil Soo Kim) 대한약학회 1997 약학회지 Vol.41 No.1
Poloxamer-poly (acrylic acid) (PAA) interpenetrating polymer networks (IPNs) were prepared via matrix polymerization of acrylic acid with poloxamer prepolymer. The equilibrium swelling of poloxamer/PAA IPNs was determined in various pH medium. The swelling of poloxamer/PAA IPNs was more affected by pH difference compared with the swelling of homo PAA gel due to protonation and deprotonation of the PAA network, followed by reversible formation and dissociation of the interpolymer complex due to hydrogen bonding between acidic hydrogens and ether oxygens. Nonionic/anionic/cationic drugs were incorporated into IPN matriceds as a model drug and their release behavior was studied. Nonionic, drug revealed release patterns depending solely on pH dependent swelling kinetics. In contrast, the release of ionic drugs was significantly affected by ionic drug-polymer interaction as well as the swelling kinetics.
Helicobacter pylori 감염과 대장 신생물 발생의 관련성
홍은정 ( Eun Jung Hong ),박동일 ( Dong Il Park ),손희정 ( Hee Jung Sohn ),배문희 ( Mun Hee Bae ),김화목 ( Hwa Mock Kim ),김용성 ( Yong Sung Kim ),변선정 ( Sun Jeong Byun ),박정호 ( Jung Ho Park ),김홍주 ( Hong Joo Kim ),조용균 ( Y 대한내과학회 2008 대한내과학회지 Vol.74 No.6
Background/Aims: Helicobacter pylori infection is a recognized cause of chronic gastritis, peptic ulcer and gastric adenocarcinoma. However, both positive and negative associations with colorectal neoplasia have been reported. The aim of this study was to determine whether H. pylori infection is associated with an increased risk of colonic neoplasia in a Korean population. Methods: We examined 1,590 subjects (1,297 men and 293 women) who underwent colonoscopy and serologic testing for IgG antibodies against H. pylori at the Health promotion Center in Kangbuk Samsung Hospital and at Samsung Medical Center. We compared the prevalence of colonic neoplasia in the seropositive subjects with that of the seronegative subjects. Results: The overall prevalence of H. pylori in our study population was 56.2%. There were no significant differences of the baseline characteristics between the two groups. There was no statistically significant difference in the prevalence of colonic neoplasia between the seropositive group and the seronegative group (p=0.090). Conclusions: These findings suggest that there is no significant association between H. pylori infection and colonic neoplasia.(Korean J Med 74:605-610, 2008)
사회적 환경을 포함한 서비스스케이프가 고객의 감정반응과 행동의도에 미치는 영향
변광인(Gwang In Byun),이정은(Jung Eun Lee),김기진(Gi Jin Kim) 한국호텔외식관광경영학회 2014 호텔경영학연구 Vol.23 No.1
The purpose of this study is finding out the impact of servicescape including social environment such as coffee shop employees and other customers, which is differentiated from other studies, on emotional responses and behavioral intention of customers in coffee shop environment. The revenues of brand coffee shops were compared and top four revenue brands(Starbucks, Caffebene, Coffee Bean and Angel-in-us) were selected. Questionnaire survey on customers who visited Starbucks, Caffebene, Coffee Bean and Angel-in-us located in Daegu city-center from June 24th to 29th 2013 were conducted. The survey consists of 100 questionnaire sheets per each brand. 384 questionnaire answer sheets were used for final analysis after excluding insincere answer sheets. According to the result of final analysis, esthetic aspect, comfort aspect, visible aspect of other customers and image of employees have significant positive impacts on pleasure while convenience and visible aspect of other customers have significant positive impacts on arousal. In addition, comfort aspect and image of employees have significant impacts on behavioral intention while pleasure and arousal both have significant impacts on behavioral intention.
CaSki 세포주에 대한 비소화합물의 세포 성장 억제 및 세포자멸사
변정미 ( Jung Mi Byun ),정대훈 ( Dae Hoon Jeong ),이대심 ( Dae Sim Lee ),김주란 ( Joo Ran Kim ),김영남 ( Young Nam Kim ),정은정 ( Eun Jeong Jeong ),성문수 ( Moon Su Sung ),이경복 ( Kyoung Bok Lee ),김기태 ( Ki Tae Kim ) 대한산부인과학회 2010 Obstetrics & Gynecology Science Vol.53 No.7
Objective: To compare inhibition of cell growth and apoptosis in human cervical cancer cell lines (CaSki) by paclitaxel, cisplatin, arsenic trioxide and tetraarsenic oxide. Methods: Inhibition of cell growth was determined by the water-soluble tetrazolium salts (WSTs) -1 assay. For apoptosis analysis in CaSki cell line treated with single or combination of two agents, CaSki cell line treated with each agent was stained with annexin-V/PI and flow cytometry was performed. Results: Progression of apoptosis in CaSki cell line treated with paclitaxel, cisplatin, arsenic trioxide, and tetraarsenic oxide was time dependent. Inhibition of cell growth in CaSki cell line by paclitaxel, cisplatin, arsenic trioxide, and tetraarsenic oxide was dose and time dependent. Especially, tetraarsenic oxide was more effective in inhibition of CaSki cell growth compared to arsenic trioxide. Group treated with combination of cisplatin and tetraarsenic oxide showed more progressive apoptosis compared to other combination group. Conclusion: Tetraarsenic oxide has more potent anti-tumor effects than other agents on CaSki cell line. We need to consider further study about antitumor effect of tetraarsenic oxide through clinical study.