웨이트 트레이닝이 상태불안, 혈압, 심박수에 미치는 영향

김병로,강현식 창원대학교 체육과학연구소 1997 경남 체육연구 Vol.2 No.2

본 연구의 목적은 웨이트 트레이닝이 상태불안, 혈압, 심박수에 어떠한 영향을 미치는지를 알아보는 것이었다. 피험자는 주당 2회씩 16주 동안 웨이트 트레이닝 강좌를 수강했던 12명의 남자 대학생 이었다. 상태불안은 상태불안 검사지(STAI)를 이용하여 운동전, 운동직후, 30분, 60분, 120분에 걸쳐 각 5회 측정하였으며 혈압과 심박수는 자동혈압계인 Accutracker Ⅱ ABP Monitor(Suntech, USA)를 이용하여 측정하였다. 웨이트 트레이닝 프로그램은 벤치 프레스, 암컬, 레그컬, 레그 프레스 등의 10개 스테이션으로 구성되었다. 조용한 휴식을 위한 처치는 웨이트 트레이닝 처치에 대한 비교조건으로서 40분간 실험실에서 조용히 앉아 있도록 하였다. 측정된 자료는 처치와 시간대별 평균(M)과 표준편차(SD)를 산출하고 각변인별로 다변량분석(MANOVA)을 실시하였다. 웨이트 트레이닝후 상태불안, 혈압, 심박수의 변화에 관한 연구결과를 요약하면 다음과 같다. 1. 상태불안은 웨이트 트레이닝과 조용한 휴식간 그리고 시간별로 유의한 차이가 나타나지 않았다. 2. 수축기 및 이완기 혈압은 웨이트 트레이닝과 조용한 휴식간 그리고 시간별로 유의한 차이가 나타나지 않았다. 3. 심박수는 웨이트 트레이닝과 조용한 휴식간 그리고 시간별로 유의한 차이가 나타나지 않았다.

통합심리치료의 인지분화훈련이 정신분열병 환자의 기초 인지기능에 미치는 영향

이희상,현명호,조현상,이연희,김태용,장순아,노규식,정기립,이만홍,유계준 大韓神經精神醫學會 1998 신경정신의학 Vol.37 No.5

연구목적 : 정신분열별 환자들을 대상으로 통합심리치료의 소프로그램인 인지분화훈련을 실시하여 실행기능, 개념형성능력, 언어능력 및 추론력에 대한 훈련이 보다 더 하위단계의 인지기능인 주의력, 기억력, 반응시간 등을 호전시킬 수 있는 지를 알아보고자 하였다. 연구방법 : DSM-IV상 정신분열병으로 진단된 24명의 입원환자를 무작위로 양분하여 한 군은 인지분화훈련군으로 다른 한 군은 대조군으로 나누었다. 훈련군은 4주동안 1주일에 3회(매회 60분간)로 총 12회의 통합심리치료의 인지분화훈련을 받았으며 대조군은 동일한 시간동안 정신건강교육을 받았다. 훈련전후에 훈련군과 대조군을 대상으로 개정판 Wechsler 기억검사로 주의집중력, 장·단기 기억력을 측정하였고 Vienna test system중 결정반응시간검사로 반응시간, 반응결정시간, 반응운동시간을 평가하였다. 연구결과 : 1) 주의집중력에서는 훈련군과 대조군사이에 집단간 효과, 집단내 효과 및 상호작용 효과가 없었다. 2) 단기기억력에서는 훈련군과 대조군사이에 집단내 효과는 있었으나(F(1,24)=10.46. p〈.05). 집단간 효과, 상호작용 효과는 없었다. 3) 장기기억력에서는 훈련군과 대조군사이에 집단내 효과는 있었으나(F(1,24)=15.09. p〈.05). 집단간 효과, 상호작용 효과는 없었다. 4) 반응시간에서는 상호작용 효과(F(1,24)=5.18, p〈.05)가 있었다. 5) 반응운동시간에서는 집단간 효과, 집단내 효과 및 상호작용 효과가 없었다. 6) 반응결정시간에서는 상호작용 효과(F(1.24)=6.00, p〈.05)가 있었다. 결 론 : 통합심리치료의 인지분화훈련은 정신분열병 환자에서 하위단계의 인지기능 중 반응시간(특히 반응결정시간)을 단축시키는 효과가 있었다. Objectives : The purpose of this study was to investigate the effects of cognitive differentiation training of Integrated Psychological Therapy(a training program of executive function, concept formation, language, and abstraction) on micro-level cognitive function such as attention, memory and reaction time in patients time in patients with schizophrenia. Methods : Twenty-four inpatients diagnosed as schizophrenia using DSM-IV were randomly assigned to 2 groups. The training group went through a total of 12 sessions of cognitive differentiation training for 4 weeks. The control group received psychoeducation program during the same period. Wechsler Memory Scale-Revised and Decision-Reaction Timer of Vienna Test System were administered to all patients, both before and after the training program. Results : 1) In the attention and concentration scores of Wechsler Memory Scale-Revised, between group, within group and interaction effects of training were not significant. 2) In the short-term memory scores of Wechsler Memory Scale-Revised, within group effect of training was significant(F(1,24)=10.46, p〈0.05), but the between group and interaction effects did not reach significance. 3) In the long-term memory scores of Wechsler Memory Scale-Revised, within group effect of training was significant(F(1,24)=15.09, p〈0.05), but the between group and interaction effects did not reach significance. 4) In the reaction time scores of Decision-Reaction Timer, interaction effect of training was significant(F(1,24)=5.18, p〈0.05). 5) In the motor time scores of Decision-Reaction Timer, between group, within group and interaction effects of training were not significant. 6) In the decision time scores of Decision-Reaction Timer, interaction effect of training was significant(F(1,24)=6.00, p〈0.05). Conclusion : Our findings suggest that cognitive differentiation training of Integrated Psycho-logical Therapy is partly effective on improving micro-level cognitive functions such as reaction time(especially, decision time) in patents with schizophrenia.

하악골 충격시 안면 두개골의 응력분산양상에 미치는 구강보호장치의 역할에 관한 유한요소법적 연구

김일한,노관태,노현식,김지연,우이형,Kung-Rock Kwon,최대균 대한치과보철학회 2012 대한치과보철학회지 Vol.50 No.1

연구 목적: 이 연구의 목적은 하악골 충격 시 안면 두개골의 응력 분산양상에 미치는 구강보호장치의 효과에 대해 조사하는 것이다. 연구 재료 및 방법:: 구강보호장치를 제작하고 사람의 머리부위와 치열의 3차원적 유한요소 모델을 컴퓨터 토모그래피를 사용하여 제작하였다. 머리부위의 finite element model은 356,092요소와, 87,099절점으로 이루어져 있다. 그리고 skull과 maxillae, mandible, articular disc, teeth, 그리고 구강보호장치로 구성되었다. 경부의 움직임을 묘사하기 위하여 스프링이 사용되었다. 하악골의 충격점은 gnathion, center of inferior border 와 anterior edge of gonial angle이었다. 충격방향은 수직, 경사방향(45 도), 그리고 수평이다. 충격량은 0.1초당 800 N이었다. 결과: 수직충격을 가한 경우에는 구강보호장치의 장착여부와 무관하게 비슷한 응력과 분산양상이 나타났다(P>.05). 경사충격(45 도)을 가한 경우 구강보호장치를 장착한 모델에서는 응력이 치아와 안면골 및 두개골로 넓게 분산되었으나 이에 비하여 장착하지 않은 모델에서는 치아에 응력이 집중되었다(P<.05). 수평충격을 가한 경우 구강보호 장치를 장착한 모델에서는 응력이 치아와 안면골 및 두개골로 넓게 분산되었으나 이에 비하여 장착하지 않은 모델에서는 치아에 응력이 집중되었다(P<.05). 구강보호장치를 장착하지 않은 모델에서는 상악 치아에 응력이 집중되는 반면, 장착한 모델에서는 모든 충격실험에서 계측된 응력이 매우 낮았으며, 전달된 응력이 상악 치아와 안면골 및 두개골로 넓게 분산되었다. 결론: 구강보호장치는 외부충격 시에 하악에 수직으로 가해지는 충격에는 완충효과가 적었고, 45 도 경사 충격과 수평 충격에는 발생하는 응력을 안면골과 두개골의 넓은 범위로 분산시키고 응력을 감소시켜 응력의 완충 효과가 있었다. PURPOSE. The purpose of this study was to investigate the effects of a mouthguard on stress distribution under mandibular impact. MATERIALS AND METHODS. The FEM model of head consisted of skull, maxilla, mandible, articular disc, teeth, and mouthguard. The impact locations on mandible were gnathion, the center of inferior border, and the anterior edge of gonial angle. And the impact directions were vertical, oblique (45 degrees), and horizontal. The impact load was 800 N for 0.1 sec. RESULTS. When vertical impact was applied, the similar stress and the distribution pattern was occurred without the relation of the mouthguard use (P>.05). The model with mouthguard was dispersed the stress to the teeth, the facial bone and the skull when the oblique (45 degrees) impacts were happened. However, the stress was centralized on the teeth in the model without mouthguard (P<.05). The model with mouthguard was dispersed the stress to the teeth, the facial bone and the skull when the horizontal impacts was occurred. However, the stress was centralized on the teeth without mouthguard (P<.05). For all impact loads, stress concentrated on maxillary anterior teeth in model without mouthguard, on the contrary, the stress was low in the model with mouthguard and distributed broadly on maxillary anterior teeth, facial bone, and skull. CONCLUSION. The mouthguard was less effective at shock absorbing when vertical impact was added. However, it was approved that mouthguard absorbed the shock regarded to the oblique (45 degrees) and horizontal impact by dispersing the shock to the broader areas and decreasing the stress.

흰민들레 (Taraxacum coreanum) 추출물이 급성 수은 중독된 생쥐의 간에 미치는 효과

정민주,윤중식,허진,노영복,최영복,김종세,이현화 韓國電子顯微鏡學會 2008 Applied microscopy Vol.38 No.1

본 연구는 급성 수은 독성에 대한 민들레의 효과를 알아보기 위하여 시도되었다. 30 g 내외의 생쥐를 대상으로 대조군, 수은(5mg/kg) 투여군, 수은 투여 후 민들레(3 g/kg)를 구강투여 한 후 다시 24, 48, 72, 96시간, 1주일군으로 세분하여 간장 손상 억제 효과를 알아보기 위하여 생화학적 및 조직학적 실험을 실시하였다. 혈액중 aspartate amiotransferase (AST)와 alanine aminotransferase (ALT)의 수치는 민들레 투여군이 수은 투여군보다 감소되었다. 또한 간조직의 SOD와 catalase 활성도 역시 민들레 투여군이 수은 투여군에 비하여 감소하였으나 통계학적 유의성은 없었다. 간 조직의 광학현미경적 관찰에서 심한 조직괴사가 관찰되지만 민들레 투여군에서는 문맥주위의 약간의 괴사와 심한 호중구 침윤현상이 관찰되었다. 전자현미경적 관찰 결과, 간장에서 수은 투여군은 간세포의 핵이 함입되어 불규칙했으며 미토콘드리아와 조면소포체의 수조가 팽대되고, 리보솜의 탈락이 관찰되었다. 민들레 투여군은 핵이 정상적인 상태로 관찰되었고, 전자밀도가 높은 미토콘드리아가 분포되어 있었으며, 리보솜이 부착된 상태로 층판구조를 형성하는 조면소포체가 관찰되었다. 이상의 연구 결과로 보아 민들레가 수은으로 유발된 간손상을 보호하는 효과가 있는 것으로 사료되며 민들레에 대한 다양한 연구가 필요할 것으로 사료된다. Dandelion has been frequently used as a remedy for women’s disease, inflammatory diseases and disorders of the liver and gallbladder. Dandelion extracts water extract, an herbal medication, may have an effect on the activity of hepatic antioxidant enzymes in diabetic rat. This study aims demonstrate the effect of dandelion extracts, one of the natural chelator, on the biochemical and enzyme activity changes in the mouse liver caused by HgCl₂. Mice approximately 30 gm in weight were grouped into the control, mercury chloride-treated, and the dandelion extractstreated after mercury chloride groups. HgCl₂ (5 mg/kg) and dandelion extracts (3 g/kg) were delivered orally. Serum AST and ALT were measured, enzyme activity of liver were examined by spectrophotometer and ultrastructural alteration of liver were examined by light and electron microscopy. Dandelion extracts were decreased the increase of serum AST and ALT level induced by mercury. The catalase activity was decreased in the dandelion extracts group. The activity of SOD was dereased, but did not show significant differences. Mercury chloride-treated hepatic cell were irregular nucleus, enlarged and reduced number of mitochodria, enlarged rough endoplasmic reticulum, loss of ribosomes. Cells treated with dandelion extracts were similar to those of the control group. In conclusion, dandelion extracts may protect the mercury-induced toxicity on Liver.

남제주 화력발전소의 증설과 저감대대책의 영향 분석

이화운,김유근,정우식,오은주,임헌호,노순아,반수진,최현정,김민선,김헌숙 부산대학교 환경문제연구소 2002 環境硏究報 Vol.20 No.-

In the view of the results investigated the effect of air pollutants that is emitted from a new generator facilities, the total estimated concentration which is the summation of a contributional concentration and observational concentration is much less than that of atmospheric environment criterion for the air pollutants. So we can predict that the operation of the new generator facilities with mitigation equipment don't seriously affect around environment. At the same time, we compared the contributional concentration of before mitigation equipment with that of after it to examine the decreasing amount due to mitigation equipment. The result showed that the concentration of SO2, NO2 and PM-10 is reduced to 25%, 30% and 26% of original value, respectively.

Electrophysiological and behavioral studies on chemical communication of four tortricid species

Hyun Sik Roh,Chung Gyoo Park,Kye Chung Park 한국응용곤충학회 2016 한국응용곤충학회 학술대회논문집 Vol.2016 No.04

Four sympatric tortricid (Lepidoptera) species in New Zealand, Epiphyas postvittana (Walker), Planotortrix octo (Dugdale), Cydia pomonella (L.), and Cydia succedana (Denis and Schiffermüller), were studied for the morphology of antennal sensilla and the chemical communication systems using scanning electron microscopy (SEM), electro-antennogram (EAG), gas chromatography-electroantenno-detection (GC-EAD), single sensillum recording (SSR) and field tests. Antennal flagella of adult have four main types of olfactory sensilla (s.); s. trichodea, s. basiconica, s. auricillica, and s. coeloconica in the four species. The s. trichodea subtype I was longest and male-specific in all the species. The antennae of males of the four species showed characteristic higher EAG, GC-EAD and SSR responses to 12, 14-carbon acetates or alcohol. Some of the selected chemicals selected from the electrophysiological experiments caused significant antagonistic or agonistic activities to the sex pheromone of each species in the field. In this study, the four species showed distinct chemical communication systems according to sub-family, which possibly serve as a factor in species isolation.

Sequence analysis and expression of three major glycoproteins of Aujeszky’s disease virus NYJ strain in Bm5 Cells

Hyun Na Koo,Jeong Mi Oh,Jae Young Choi,Kwang Sik Lee,Jong Yul Roh,Yeon Ho Je,Byung Rae Jin,Sung Sik Yoo,Jae Su Kim,Young In Kim,In Joong Yoon,Soo Dong Woo 한국응용곤충학회 2009 한국응용곤충학회 학술대회논문집 Vol.2009 No.10

Aujeszky’s disease (AD), also called pseudorabies, is an infectious viral disease, caused by an alpha herpes virus and has domestic and wild pigs, as well as a wide range of domestic and wild animals, as the natural host. AD affects many countries and regions in the world, causing important economic losses, mainly due to international trade restrictions. In this study, to determine the characteristics of the Aujeszky’s disease virus (ADV), NYJ strain, which was isolated from the serum of an infected pig in 1987, we investigated the nucleotide sequence and expression of the glycoproteins gB, gC, and gD using the bBpGOZA system. We found that the glycoproteins gB, gC, and gD of NYJ consisted of 2751 bp, 1443 bp, and 1203 bp, respectively. Comparison of the NYJ with the other strains revealed nucleotide sequence identity ranging from 91.tito 99.0%. To better understand the genetic relationships between other strains, phylogenetic analyses were performed. The NYJ strain was formed a distinct branch with high bootstrap support. The expression of glycoprotein gD in insect cells was characterized by SDS-PAGE and Western blotting with an anti-ADV polyclonal antibody. Glycoprotein gD of approximately 45 kDa was detected. The results of this study have implications for both the taxonomy of ADV and vaccine development.

RESPONSE OF OSTEOBLASI-LIKE CELLS ON TITANIUM SURFACE TREATMENT

Roh Hyun-Ki,Heo Seong-Joo,Chang Ik-Tae,Koak Jai-Young,Han Jong-Hyun,Kim Yong-Sik,Yim Soon-Ho The Korean Academy of Prosthodonitics 2003 대한치과보철학회지 Vol.41 No.6

Statement of problem. Titanium is the most important material for biomedical and dental implants because of their high corrosion resistance and good biocompatibility. These beneficial properties are due to a protective passive oxide film that spontaneously forms on the surface. Purpose. The purpose of this study was to evaluate the responses of osteoblast-like cells on different surface treatments on Ti discs. Material and Methods. Group 1 represented the machined surface with no treatment. Group 2 surfaces were sandblasted with $50{\mu}m\;Al_2O_3$ under $5kgf/cm^2$ of pressure. Groups 3 and 4 were sandblasted under the same conditions. The samples were treated on a titanium oxide surface with reactive sputter depositioning and thermal oxidation at $600^{\circ}C$ (Group 3) and $800^{\circ}C$ (Group 4) for one hour in an oxygen environment. The chemical composition and microtopography were analyzed by XRD, XPS, SEM and optical interferometer. The stability of $TiO_2$ layer was studied by petentiodynamic curve. To evaluate cell response, osteoblast extracted from femoral bone marrow of young adult rat were cultured for cell attachment, proliferation and morphology on each titanium discs. Results and Conclusion. The results were as follows : 1. Surface roughness values were, from the lowest to the highest, machined group, $800^{\circ}C$ thermal oxidation group, $600^{\circ}C$ thermal oxidation group and blasted group. The Ra value of blasted group was significantly higher than that of $800^{\circ}C$ thermal oxidation group (P=0.003), which was not different from that of $600^{\circ}C$ thermal oxidation group (P<0.05). 2. The degree of cell attachment was highest in the $600^{\circ}C$ thermal oxidation group after four and eight hours (P<0.05), but after 24 hours, there was no difference among the groups (P>0.05). 3. The level of cell proliferation showed no difference among the groups after one day, three days, and seven days (P>0.05). 4. The morphology and arrangement of the cells varied with surface roughness of the discs.

여성발레전공자들의 상해예방요인에 관한 연구

노현식(Hyun-Sik Roh) 한국엔터테인먼트산업학회 2016 한국엔터테인먼트산업학회논문지 Vol.10 No.2

여성발레무용수들의 하지 상해는 빈번히 발생한다. 특히 Q-angle의 증가는 넙다리네갈래근의 상대적 외측 당김을 유발하며 무릎의 상해 위험성을 높이는데 일발인에 비해 높은 각을 보이는 여성 발레 무용수들의 상해예방을 위한 전략이 필요하다. 이를 위해 하지의 통증이 없는 여성 발레 무용수 18명을 대상으로 등속성 근력측정과 Q-angle을 분석하였다. 분석 결과 여성 발레 무용수들 중 높은 Q-angle 그룹의 무릎 신전근 약했고, Q-angle과 무릎 근력과의 관련성이 높았다. 이러한 결과는 여성 발레무용수들의 무릎 상해예방을 위한 근력강화 운동이 필요하다는 것을 시사한다. 따라서 발레무용수들의 장기적인 활동을 위해서는 본 연구의 내용을 활용되길 기대한다. Injury of female ballet dancers occurs frequently. In this injury prevention strategies are needed. This study was conducted to investigate relationship between the Q-angle and femoral muscle strength of female ballet dancers. For the study, the isokinetic sthenometry and Q-angle measurement of 18 female ballet dancers who do not have pain in the lower limbs were performed. The results were as follows: First, the female ballet dancers with a high Q-angle had weak knee extensor and needed training to strengthen it. Second, there was high correlation between Q-angle and knee muscle strength, which suggests female ballet dancers need to reinforce muscular strength. Third, knee flexor did not have correlation with Q-angle. This study demonstrated correlation between Q-angle and muscular strength. Future research will need to prove correlation between the hip abductor and adductor that can influence Q-angle.

SNS 팔로워 친밀도에 따라 SNS 광고속성이 광고태도와 구매의도에 미치는 영향에 관한 실험연구

노현식(Roh, Hyun-Sik),이용기(Lee, Yong-Ki),이성호(Lee, Sung-Ho) 한국상품학회 2021 商品學硏究 Vol.39 No.1

본 연구는 SNS 광고에서 소비자 의사결정과 맥락효과 이론을 바탕으로 SNS 팔로워의 친밀도에 따라 SNS 광고속성, 광고태도와 구매의도에 대한 지각 차이, 그리고 SNS 광고속성이 광고태도와 구매의도에 미치는 영향을 분석하였다. 일반적인 SNS 광고 노출이 된 집단을 대조군(C), 친밀도에 따라 고친밀도군(H), 저친밀도군(L)으로 구분되어 실험연구가 진행되었다. 각 집단별 대조군(C) 139부, 고친밀도군(H) 88부, 저친밀도군(L) 93부 등 총 320부의 자료가 수집되어 일원배치분산분석, 다중집단분석을 통하여 가설들이 검증되었다. 분석 결과, SNS 팔로워의 친밀도에 따라 SNS 광고속성, 광고태도, 그리고 구매의도의 지각 정도가 집단별로 유의한 차이가 나타났다. 다중집단분석 결과, 친밀도에 따라서 SNS 광고속성이 광고태도와 구매의도, 그리고 광고태도가 구매의도에 미치는 영향이 다르게 나타났다. 본 연구 결과는 친밀도에 따라 SNS 광고속성에 지각된 차이가 발생되는 것을 보여주어 친밀도에 따라 효과적인 SNS 광고 전략 계획이 수립되어야 한다는 것을 제시한다. This study aims to examine differences in perceptions of SNS advertising attributes (information, reliability, entertainment, customization), advertising attitudes, buying intentions, and SNS advertising attributes’ effects on advertising attitudes, buying intentions by SNS followers intimacy based on theory of consumer decision-making and context effect. The group exposed to the general SNS advertisement was named as the control group (C), and the experimental group exposed to the SNS advertisement, which was an experimental stimulus, was classified into a high intimacy group (H) and a low intimacy group (L) according to intimacy. Data were collected from a total of 320 people, including 139 control (C), 88 high intimacy group (H), and 93 low intimacy group (L) and analyzed using One-way ANOVA with SPSS and Multi-Group Analysis with AMOS program. One-way ANOVA analysis shows that there are significant differences in perceptions of SNS advertising attributes, advertising attitudes, and purchase intention for each SNS follower s intimacy group. The results of multi-group analysis show that the influence of SNS advertising attributes on advertising attitude and purchase intention, and advertising attitude on purchase intention for each intimacy group was different. The results of this study show that perceived differences in SNS advertising attributes occur according to intimacy, suggesting that effective SNS advertising strategy plans should be established according to intimacy.