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8주간 케틀벨 훈련이 중학교 남자축구선수의 기초체력 및 하지 등속성 근기능에 미치는 영향
윤대영(Yoon, Dae-Young),김주영(Kim, Joo-Young),성동준(Sung, Dong-Jun),권태동(Kwon, Tae-Dong) 한국체육과학회 2016 한국체육과학회지 Vol.25 No.6
Kettlebell are kettle-shaped exercise tools. Recently, they have been used broadly in muscular strength and conditioning programs for athletes, and fitness programs for non-athletes. However, there is still a lack of research on the use of kettlebell by adolescent athletes. Thus, this study aimed to examine the effects of 8 weeks of kettlebell training on physical fitness and isokinetic muscle strength of lower extremity in male middle-school soccer players. A total of 16 male middle-school soccer players participated in this research, and they were randomly divided into an kettlebell training group (n=8) and control group (n=8). The effects of kettlebell training on physical fitness were measured by strength, muscular endurance, flexibility, quickness, and cardio-respiratory endurance, and the effects on isokinetic muscle strength of lower extremity were measured by extensor and flexor muscle strength. The kettlebell training group performed kettlebell training 3 times per week for 8 weeks, and the control group underwent other training and mini-games for physical fitness. After 8 weeks of kettlebell training, the study results showed a significant interaction effect between group and time on muscular endurance (p<.01). However, there was no significant interaction effect between group and time on strength, flexibility, quickness, and cardio-respiratory endurance (p>.05). Regarding isokinetic muscle strength of lower extremity, there was a significant interaction effect for the left and right flexor muscle after 8 weeks of kettlebell training (left: p<.05; right: p<.01). However, there was no significant interaction effect for left and right extensor muscle strength (p>.05). In conclusion, kettlebell training was effective to increase muscular endurance and left and right flexor muscle strength in male middle-school soccer players. The results of this study will be helpful for soccer coaches and trainers when they construct training programs.
프로골프대회 타이틀 스폰서십 참여가 스폰서 이미지에 미치는 영향
윤대영 ( Dae Young Yoon ),김일광 ( Ill Gwang Kim ),정예수 ( Ye Soo Chung ) 한국스포츠리서치 2007 한국 스포츠 리서치 Vol.18 No.4
The purpose of this paper was to identify the influence of spectators` cognitions about professional golf title sponsors with regard to five factors on the sponsors` corporate image. In order to achieve this purpose, a survey research was conducted, and subjects included a total of 204 spectators selected from a professional golf tournament. Although 230 spectators were randomly selected, only 228 spectators responded, and data from 24 respondents were excluded because their responses were judged to be unreliable. The questionnaire included questions about the subjects` perceptions of the sponsors` product quality, management skill, as well as contributions to the tournament`s success, community development and golf skill improvement. Also included was a question about the sponsors` image. The questionnaire`s validity was evaluated by a group of experts and by factor analysis, and since the Cronbach alpha values were .78 ~.90, the scales were considered to be fairly reliable. Data analyses consisted of employing descriptive statistical analyses, correlation analysis and standard multiple regression analysis, using Window SPSS/PC+ version 10, and the following conclusions were drawn: First, spectators` perception of the role sponsors play in holding a successful tournament positively influences the image of the sponsors. Second, spectators` perception of the role golf tournaments play in improving their golf skill positively influences the image of the sponsors because the sponsors are appreciated for helping the tournament to take place. Third, among the five roles observed in this study, the above-mentioned two roles positively influenced the image of the sponsors because they provide personal and direct benefits to the spectators.
유창현(Chang Hyun Yoo),윤대영(Dae Young Yoon),조현상(Hyun Sang Cho),민기식(Ki Sik Min),김종완(Jong Wan Kim),유기양(Ki Yang Ryoo) 대한소아신경학회 1999 대한소아신경학회지 Vol.6 No.2
목적: 뇌성마비 환아의 MRI를 후향적으로 분석하여, 뇌손상 평가지 MRI의 역할, 임신 주수에 따른 MRI 소견의 차이를 알아보았다. 방법: 1994년 1월부터 1998년 7월까지 강동성심병원에서 뇌성마비로 진단받은 66명(만삭아 37명 미숙아 29명)의 MRI를 미숙아군과 만삭아군으로 나누어 비교하였다. 결과: 미숙아군 29례에서 13례가 저산소성 허혈성 뇌손상의 소견을 보였는데 PVL이 12례(41.3%)로 가장 많았고 신경 세로 이주 장애가 6례(20.8%), 기타 선천성 뇌기형 5례(17%), multifocal ischemic necrosis 1례(3.4%), 정상 소견이 5례(17%)에서 관찰되었다. 만삭아군 37례에서 22례가 저산소성 허열성 뇌손상의 소견을 보였으며 selective neuronal necrosis 11례(29.7%), PVL 4례(10.8%), focal and multifocal ischemic necrosis 4례(10.8%), 대리석 상태 3례(8.1%), 신경 세포 이주 장애 4례(10.8%), 기타 선천성 뇌기형 5례(13.5%), 정상 소견이 6례(16.2%)에서 관찰되었다. 결론: MRI를 통해서 뇌성 마비 환아에서 다양한 병변을 관찰할 수 있으며 저산소성 허혈성 뇌손상은 미숙아군과 만삭아군에서 유의한 차이를 보였다. 미숙아군에서는 PVL이 흔하고 만삭아군에서는 selective neuronal necrosis가 통계적으로 많았다. Purpose: We used MRI to retrospectively analyze the brain of patients suffering from cerebral palsy. Our aim is to determine MRI's role in the assessment of brain damage, the relationship of gestational age. Methods: A total of 66 patients(29 preterm group and 37 term group), who visited Kang-Dong Sacred Heart Hospital from January, 1994 to July, 1998, where enrolled in study. Results: Among the 29 in the preterm group, 13 patients showed MR images of hypoxic ischemic injury in which periventricular leukomalacia(PVI) and multifocal ischemic necrosis in 12(41.3%) and 1(3.4%) respectively. Neuronal MR images 5(17%) in this preterm group. Among the 37 in the term group, 22 patients showed MR images of hypoxic ischemic injury in which selective neuronal necrosis were 11(29.7%), PVL 4(10.8%), focal and multifocal ischemic necrosis 4(10.8%) and status marmoratus 3(8.1%). Meuronal migration disorders were 4(10.8%), other congenital malformations 5(13.5%) normal MR images 6(16.2%) in the term group. Conclusion: MRI provided useful information in a majority of children with cerebral palsy. Hypoxic ischemic injury was significantly different in preterm and term groups. PVL was frequent in the preterm group and selective neuronal necrosis was statistically common in the term group.
항혈전제로 인한 뇌내출혈과 구분이 모호한 악성 신경교종 환자 -증 례 보 고-
하지수 ( Ji Soo Ha ),강정한 ( Jeong Han Kang ),윤대영 ( Dae Young Yoon ),신형식 ( Hyung Sik Shin ) 대한뇌종양학회 대한신경종양학회 2014 Brain Tumor Research and Treatment Vol.2 No.1
The cause of intracerebral hemorrhage (ICH) is not always able to be obviously detected on computed tomography (CT), whether with enhance or not. In our case, CT showed multi-lobulated appearance of ICH but contrast-enhanced CT did not revealed any abnormal enhanced lesions. During operation we met by chance the abnormal cortical tissue, pathologic diagnosis of which was glioblastoma. Although hemorrhage seem to have no pathologic cause on contrast- enhanced CT, if appearance of hemorrhage is different from hypertensive ICH on non-contrast CT, we should perform magnetic resonance imaging (MRI) if available and keep in mind histological examination of the lesions.