VDT 증후군을 가진 사무직 근로자를 위한 심부경부굴곡 운동의 효과 연구

신두철(Doo Chul Shin),신원섭(Won Seob Shin),송창호(Chang Ho Song) 대한인간공학회 2008 大韓人間工學會誌 Vol.27 No.4

The aims of this study were to compare and analyze two types of deep cervical flexion exercises, craniocervical flexion and cervical flexion, and to ascertain their relative effects on neck and shoulder pain and functional improvement. The participants of the study were individuals who work in sedentary jobs in an office environment. 54 appropriate subjects were chosen and randomly divided into two groups: one group underwent a craniocervical flexion exercise program and the other a cervical flexion exercise program. The six week exercise program consisted of home exercises performed by each subject five times a week and education once a week. Neck-shoulder pain, muscle strengthening, cervical alignment were measured prior to commencement of the exercise programs and again after six weeks. At completion of the six week, both exercise programs decreased neck pain (p<.05). Forward head postures were reduced, and the craniocervical flexion exercise program was more effective in reducing forward head posture (p<.05). The maximum muscle strength and 50% of maximum muscle strength maintaining time of the deep cervical flexor muscles were significantly increased. There were no significant changes of the cervical lordotic curve. The results of this study showed deep cervical flexion exercise was effective in the treatment of neck and shoulder pain, however craniocervical flexion exercise was more effective than cervical flexion exercise.

골프연습장의 환경특성이 서비스품질, 고객만족 및 구매행동의도에 미치는 영향

이용기(Lee Yong-ki),신두철(Shin Doo-chul),류철(Lryu Cheol) 한국스포츠산업경영학회 2000 한국스포츠산업경영학회지 Vol.5 No.1

본 연구는 골프연습장의 환경특성 중 어떠한 요인들이 소비자들의 전반적 서비스품질 평가에 영향을 미치며, 그 결과 고객만족 및 구전, 재이용의도 등의 구매행동의도에 어떠한 영향을 미치는 가를 실증분석 하였다. 서울, 부산, 대전, 충북, 경기의 5개 지역에 소재하고 있는 18개 골프연습장의 126명 이용고객으로부터 자료를 수집하였으며, 경로분석을 이용하여 연구가설을 분석하였다. 실증분석 결과, 본 연구의 요약은 다음과 같다. 첫째, 골프연습장의 환경특성 중 고객서비스, 시설/장비, 편리성 등의 요인이 전반적 서비스품질 평가에 유의적인 정(+)의 영향을 미치는 것으로 나타났다. 둘째, 전반적 서비스품질의 지각 정도가 높을수록 고객만족이 높아지며, 그 결과 구전커뮤니케이션과 재이용의도에 유의적인 영향을 미치는 것으로 나타났다. The purpose of this study was to investigate the effects of golf training facilities' environments on evaluation of service quality and purchase behavior intentions. To analyze the data collected from 126 respondents, path analysis was employed. The results can be summarized as follows. First, customer service, facilities/equipment, and convenience factors had a significant positive effect on the perception of overall service quality. Second, the higher perceived overall service quality, the higher customer satisfaction, in turn, the higher word-of-mouth communications and repurchase intentions.

뇌졸중 환자의 체중지지 비대칭과 보행 대칭성의 관련성

이용우 ( Yong Woo Lee ),신두철 ( Doo Chul Shin ),이경진 ( Kyoung Jin Lee ),이승원 ( Seung Won Lee ) 대한물리의학회 2012 대한물리의학회지 Vol.7 No.2

Purpose The aim of this study was to investigate the relationship between weight-supporting asymmetry and gait symmetry in patients with stroke. Methods Sixty two stroke patients with hemiplegia stood quietly with eye opens on a force platform to calculate weight-supporting asymmetry from vertical reaction force. The GAITRite was used to evaluate their gait parameters. The data were analyzed using Pearson correlation. Results The results of this study was showed that the medio-lateral index (ML) was correlated with symmetry rate (SR), symmetry index (SI), and Gait asymmetry (GA) of step time and length but stronger correlation with spatial gait symmetry than temporal symmetry. In gait symmetry, step length has stronger correlation with weight-supporting asymmetry than step time. Conclusions The results of this study shows weight-supporting asymmetry was correlated with more spatial gait symmetry than temporal symmetry.

완두 F_1세대의 조합능력 검정

정원복,오주성,황필성,황영현,신두철,한원영,김수경 동아대학교 교육대학원 2002 동아교육논총 Vol.28 No.-

완두의 이면교잡에 의한 F_1세대에 대한 조합능력을 검정한 결과는 다음과 같다. 9개 형질에 대한 GCA, SCA, RCA효과를 검정한 바 조합능력은 전 형질에서 GCA, SCA, RCA가 모두 유의하였고, 분지수·경직경·엽장·주당협수·협당립수·주당립수·100립중·주당립중은 GCA가 SCA보다 크고, 품종간 GCA효과는 고성종1호가 경직경과 100립중에서, 고성종2호가 경장·분지수·엽장에서, 김해종이 주당협수·주당립수·100립중·주당입중에서, 진해종이 협다립수에서 각각 정(+)으로 높았다. SCA효과에서 경장은 1×2(고성종1호×고성종2호)조합과 1×3(고성종1호×김해종)조합이, 분지수는 4×5(고성종3호×진해종)조합이, 경직경과 엽장은 1×3(고성종1호×김해종)조합이, 주당협수는 1×2(고성종1호×고성종2호)조합과 4×5(고성종3호×진해종)조합이, 협당립수는 1×2(고성종1호×고성종2호)조합·1×4(고성종1호×고성종3호)조합·2×3(고성종2호×김해종)조합이, 주당립수는 1×2(고성종1호×고성종2호)조합과 4×5(고성종3호×진해종)조합이, 100립중은 3×4(김해종×고성종3호)조합이, 주당립중은 1×2(고성종1호×고성종2호)조합·3×4(김해종×고성종3호)조합·4×5(고성종3호×진해종)조합이 각각 정으로 높았다. RCA효과에서 경장·엽장·주당협수·주당립중은 1×2(고성종1호×고성종2호)조합이, 주당협수·주당립수·100립중·주당립중은 2×4(고성종2호×고성종3호)조합이 각각 정으로 높았다. Five pea varieties in F₁ generation of the possible crosses among them were used to estimate the combining ability for nine characters, i. e., stem length, number of branches per plant, stem diameter, leaf length, number of pods per plant, number of seeds per pod, number of seeds per plant, 100-seed weight and seed weight per plant. Data for F₁ hybrid and parents were subjected to the analysis method proposed by Griffing. The results obtained were summarized as follows. Mean squares of general combining ability(GCA), specific combining ability(SCA) and reciprocal combining ability(RCA) were significant for all characters observed. Mean squares of GCA were higher than those of SCA and RCA in number of branches per plant, stem diameter, leaf length, number of pods per plant, number of seeds per pod, number of seeds per plant, 100-seed weight and seed weight and seed weight per plant. Variety Gimbae showed the highest GCA effect for number of pods per plant, number of seeds per plant and seed weight per plant and positively high effects of GCA were observed from variety Gosung#1 in stem diameter, 100-seed weight, and from variety Gosung#2 stem length, number of branches per plant, leaf length, from Jinhae in number of seeds per pod In SCA effects, hybrids in Gosung#1×Gosung#2 were wxhibited positively high for stem length, number of pods per plant, number of seeds per pod, number of seeds per plant and seed weight per plant, and high SCA effects for number of branches per plant, number of pods per plant, number of seeds per plant and seed weight per plant were found positively in Gosung#3×jinhae. In RCA effects, hybrids in Gosung#2×Gosung#3 were exhibited positively high for number of pods per plant, number of seeds per plant, 100-seed weight and seed weight per plant and high RCA effects for stem length, leaf length, number of pods per plant, and seed weight per plant were found positively in Gosung#1×Gosung#2.

골프클럽의 소비자 정보탐색량에 미치는 결정요인

이용기,신두철,이병두 한국스포츠산업경영학회 1999 한국스포츠산업경영학회지 Vol.4 No.2

본 연구는 소비자들의 정보탐색행동에 미치는 결정요인들을 지각된 위험, 관여도, 탐색비용, 인지된 정보탐색혜택, 환기세트, 과거구매경험의 양 등으로 설정하고 이들 변수들이 정보탐색원천 이용 정도와 점포방문횟수 등의 소비자 정보탐색노력에 어떤 영향을 미치는가를 고관여 제품인 골프클럽을 대상으로 하여 실증분석 하였다. 실증분석 결과, 본 연구의 요약은 다음과 같다. 첫째, 지각된 위험, 관여도, 인지된 정보탐색혜택, 환기세트, 과거구매경험의 양 등의 정보탐색 결정요인들 중 정보탐색원천 이용 정도에 미치는 변수는 인지된 정보탐색혜택은 정(+),과거구매경험의 양은 부(-)의 방향으로 유의적인 영향을 미치는 것으로 나타났다. 이것은 골프클럽에 대한 정보탐색원천의 이용정도는 인지된 정보탐색혜택이 클수록 커지나, 과거구매경험의 양이 클수록 정보원천의 이용 정도는 낮아진다는 것을 의미한다. 둘째, 지각된 위험, 관여도, 인지된 정보탐색혜택, 환기세트, 과거구매경험의 양 등의 정보탐색 결정요인들 중 정보탐색원천 이용 정도에 미치는 변수는 인지된 정보탐색와 환기세트가 정(+)의 방향으로 유의적인 영향을 미치는 것으로 나타났다. 이것은 골프클럽에 대한 점포방문횟수는 인지된 정보탐색혜택과 고려된 상품이나 모델의 수가 클수록 커진다는 것을 의미한다. The purpose of this study was to investigate the effects of perceived risk, involvement, perceived benefits, evoked set, and past experience on consumers' information search for golf clubs in Seoul and Pusan. To analyze the data collected from 272 respondents who visited golf shops, stepwise regression analysis was employed. The results can be summarized as follows. First, perceived benefits has a significant positive effect on the usage of source for information search, while the amount of past experience has a significant negative effect. Second, among the determinants of the consumer information search, perceived benefits and the evoked set have a significant positive effect on the usage of source for information search. The above-mentioned results provide golf club marketers with the following suggestions. Firts, golf club marketers have to educate consumers that they could receive greater perceived benefits during their information search. Second, marketing strategy has to be executed in a way that ones brand or product will included in the consumers' evoked sets, which are considered by the consumers during their information search. And so, the golf club marketers have to influence the consumers brand perception and search order beforehand by utilizing advertisement to position one's brand or product to be recognized at top-of-mind by the consumers.

발목자세가 정상성인의 정적균형에 미치는 효과

송창호,김경렬,이경진,신두철,이용우 대구대학교 특수교육재활과학연구소 2012 특수교육재활과학연구 Vol.51 No.3

본 연구는 정상성인을 대상으로 발목자세가 정적균형에 미치는 영향을 알아보고자 시행하였다. 서울시 소재의 대학에 재학 중인 건강한 학생 30명(남자 18명, 여자 12명)을 대상자로 선정하였다. 연구에 참여한 모든 대상자는 힘판 위에 맨 발로 서게 하였고 웨지를 사용하여 발에 각도변화 주고, 눈 뜬 상태와 감은 상태에서 정적균형을 측정하기 위해 힘판을 이용하여 자세동요를 측정하였다. 각각의 조건에 따른 자세동요의 좌우 자세동요 거리, 전후 자세동요 거리, 속도 모멘트를 분석하였다. 눈 뜬 상태와, 눈을 감은 상태에서 각각 운동면과 대칭이 자세동요에 유의한 영향을 미치는지 확인하였다. 좌우 자세동요 거리는 대칭일 때가 비대칭일 때보다 감소하며 시상면에서의 변화보다 전두면에서의 변화가 더 감소하는 것으로 나타났다. 전후 자세동요 거리는 대칭 유무에 따른 영향을 보이지 않았으나, 시상면에서의 변화보다 전두면에서의 변화가 감소하는 것으로 나타났다. 속도 모멘트는 시상면에서의 변화보다 전두면에서의 변화가 감소하며, 비대칭일 때보다 대칭일 때 더 감소하는 것으로 나타났다. 본 연구를 통하여 발목자세에 따라서 정적균형에 영향을 줄 수 있음을 확인하였으며, 발목의 시상면의 변화가 전두면의 변화보다 정적균형에 더 많은 영향을 준다는 것을 확인 하였다. The aim of the study was to investigate the effects of ankle position on static balance in healthy adult. For this study, 30 healthy adult (18 male, 12 female) were selected from university in Seoul. Each participant was asked to standing position with the under eye opened condition and eye closed condition in twelve different modes by wedges on force platform. The static balance parameters (ML sway length, AP sway length, velocity moment) were measured by the Good Balance system. Two-factor (motion plane, symmetry) repeated measures ANOVA was used to determine statistical significance of differences (p < .05) in all conditions. With the under eyes opened condition and eyes closed condition, there were significant differences of the ML sway Length in plane, symmetry, and plane ×symmetry (p < .05). With the under eyes opened condition and eyes closed condition, there were significant differences of the AP sway Length in plane. But, there was not significant differences of the AP sway Length in symmetry, and plane ×symmetry (p < .05). With the under eyes opened condition and eyes closed condition, there were significant differences of the velocity moment in plane, symmetry, and plane ×symmetry (p < .05). These results suggest that symmetry of ankle position affects postural sway and postural sway in sagittal plane is longer than in frontal plane.

Structural Analysis of Anthocyanins in Black Soybeans

Choung, Myoung-Gun,Han, Won-Young,Kang, Sung-Taeg,Baek, In-Youl,Shin, Doo- Chull,Kim, Soo-Dong,Kim, Soon-Chul,Moon, Huhn-Pal,Kang, Kwang-Hee 한국콩연구회 2002 韓國콩硏究會誌 Vol.19 No.2

Experiments were conducted to find out the exact chemical structure of anthocyanins contained seed coats of black soybeans(Glycine max (L.) Merr.). The anthocyanins in seed coats of black soybean were extracted with 1% HCI-40%MeOH and the crude anthocyanin extract was purified by Shepadex LH-20 and Lichroprep RP-18 open column chromatography. Three anthocyanins were isolated, and their chemical structures were identified by spectroscopic methods(UV-Visible, LC/ES-MS, ^1H·^13C-NMR, and by TLC). The complete structures of these anthocyanins were elucidated as delphinidin-3-O-β-glucopyranoside(An.1), cyanidin-3-O-β-glucopyranoside (An.2) and petunidin-3-O-β-glucopyranoside (An. 3). Among these, petunidin-3-O-β-glucopyranoside was identified as a new anthocyanin in black soybeans. RP-HPLC with photodiode array detection was applied for the determination of anthocyanins in seed coats of black soybeans. Three anthocyanin pigments were separeted within 25 min. by using a isocratic elution(H_2O : CH_3OH : HCOOH = 75 : 20 : 5) on a TOSOH ODS-120T column. The application of RP-HPLC was used to rapidly examine the anthocyanin profile of the black soybean, and used to be and excellent method for deterimining the composition and contents of anthocyanins in black spybeans.