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김의영,남승현,김석일,정용우,정천규 龍仁大學校 武道硏究所 1998 武道硏究所誌 Vol.9 No.1
This study investigated participants who have taken part in Hapkido continuously, in view of age, carrier in exercise, and gender and then analysed how these factors affect continuous participation in Hapkido. 1) The significant factors which enable the participants to continue Hapkido were revealed as health/physical fitness(71.67%), enjoyment / interrest (58.13%), self-protetio / guard(48.28%), phychological benefits(20.94%) 2) The factors of continuing Hapkido were different in ages, which showed significant differences in phychological benefits, skill fulfilment / challenge, accomplishment / position, charm, recreational activity. The response represented specifically in one or two areas in case of younger participants. The more aged, it showed relatively even distribution to the various responses due to the broaden span of thoughts. 3) The factors of continuing Hapkido were different in carrier, which showed significant differences in self-protection / grard, skill fulfillment / challenge, accomplishment/ position in different experiences in exercise. By the time of reaching first phase and second phase, it is thought to show the psychological effect of continuing exercise unconsciously in various areas. 4) The factors of continuing Hapkido were not different in gender, which implicated the fact that the overall attitude and thoughts on Hapkido of female participants and male participants are similar.
비용 조직에서 Hypoxia-Inducible Factor 1α의 발현 및 Vascular Endothelial Growth Factor와의 상관관계
박성국,정천규,허경욱,최정배,양영일,장원희 대한이비인후과학회 2004 대한이비인후과학회지 두경부외과학 Vol.47 No.6
Background and Objectives:The function of hypoxia-inducible factors (HIFs) in the hypoxic environment is to orchestrate -dothelial growth factors (VEGF). It has been suggested that VEGF is involved in the pathogenesis of nasal polyp. The purpose of this study is to determine and correlate concentrations of HIF-1α and VEGF in nasal polyps. Materials and Method:Twenty-five nasal polyps were colected at the time of endoscopic sinus surgery. The production of HIF-1α and VEGF mesenger RNA (mRNA) was measured by reverse transcriptase polymerase chain reaction (RT-PCR) and HIF-1α and VEGF proteins were Results:The expresions of HIF-1, VEGF mRNA and proteins were detected in nasal polyps. RT-PCR demonstrated that the level of mRNA expression of HIF-1α and VEGF were 1.12± 0.33 and 1.1± 0.42, respectively. A positive correlation was observed betwen HIF-1α and VEGF mRNA (correlation coeficient [r]= 0.49, p<0.05). The imunohistochemical studies revealed that HIF-1α was predominantly expressed in surface epithelial cels, submucosal glan-landular epithelial cells, vascular endothelial cells, and inflamatory cels than in surface epithelial cels. The expressions of HIF-1α and VEGF proteins were 3.24± 1.80 and 3.52± 1.89, respectively. A positive corelation was observed betwen HIF-1α and VEGF proteins (r= 0.76, p<0.05). Conclusion:We sugest that HIF-1α has a role in inducing VEGF in nasal polyps, and hypoxia is an important factor in the growth of nasal polyps.
여성무용수의 의상 및 전공에 따른 신체 및 자기지각 차이
서재성,정천규 한국무용학회 2013 한국무용학회지 Vol.13 No.1
본 연구의 목적은 여성 무용수들의 의상에 따라 자기 및 신체 지각, 그리고 행동지각의 차이를 알아보는 것이다. 연구 대상자는 서울 소재 대학과 무용단체여성 무용수 128명을 대상으로 무용의상조건척도를 이용해 알아보았다. 연구결과 무용의상에 따른 여성 무용수의 신체 및 자기지각 차이는 편안한 의상과 타이트한 의상모두에서 차이 가 나타났다(p<.05∼p<.001). 전공에 따른 여성 무용수의 신체 및 자기지각 차이는 공연만족과 자신감 수준에서 통계적으로 유의한 차이가 나타났다(p<.05∼p<.001). 전공이 신체 및 자기 지각에 미치는 영향은 신체 이미지, 공 연 만족에서 유의한 영향을 미치는 것으로 나타났다. 여성 무용수의 부정적인 신체 이미지, 행동지각으로 인해 우울증, 섭식장애와 정신건강에 영향을 줄 수 있고 여성 무용수의 의상이 지각에 미치는 영향을 이해함으로써 무 용수의 건강위험 요인을 줄일 수 있을 것이다.
중년여성들의 트레이닝 및 트레이닝 중단에 따른 혈중 지질 및 신체조성의 변화
김석일(Kim Seok-Il),정천규(Jung Chun-Kyu),김필승(Kim Pil-Seung),한은복(Han Eun-Pork) 한국체육과학회 2000 한국체육과학회지 Vol.9 No.2
The purpose of this study was to investigate the effect of training and detraining on blood Lipids and body compostion in middle age women. The subjects of this study were selected of 20 volunteers who were healthy middle women The mean age of the subjects was 51. 10 of them were assigned to the training group and the rest 10 were assigned to the detraining group. Training group participated in a 24 week total training program and Detraining group participated in a 12 week the same total training program then rested from training in a 12 week. The total training program(stretching, strength &, aerobics training) consisted of 80-90 minutes, 3-4 times per week for 24 week(by suggested ACSM). Blood total cholesterol(TC), triglycerides(TG), high density lipoprotein cholesterol(HDL-C), low density lipoprotein cholesterol(LDL-C), TC/HDL-C, weight, fat(%) and WHR were measured at three time periods before training begin(time, 0). and after 12 and 24 week. The results of this study were as follows: 1. Training group decreased significantly more than Detraining group about HDL -C and LDL -C after 24 week(p<.05) but there was no significant difference between training group and detraining group about total cholesterol, TC/HDL-C after 24week(p<.05). 2. Training group decreased significantly more than detraining group about fat(%) after 24week(p<.05) but there was no significant difference between training group and detraining group about weight and WHR after 24week(p<.05).
운동역학 : 드라이버 샷 비거리에 따른 골프 스윙 분석
안병훈(ByoungHunAhn),이한경(HanKyungLee),김원섭(WonSubKim),유달영(DalYoungYoo),정천규(ChunKyuChung) 한국체육학회 1999 한국체육학회지 Vol.38 No.2
본 연구는 드라이버 비거리가 240m 이상인 장타자(4명)와 220m 이하는 단타자(2명)로 구분하여 비거리에 따른 체중이동과 각 신체분절의 움직임 및 클럽의 운동 등을 분석하였다. 그 결과 체중이동은 장타자들에 있어서 임팩트시 자기체중이상의 힘을 왼발에 중심을 이동시킨 반면 단타자는 약 60%를 왼발로 중심을 이동한 것으로 나타났고, 무릎관절 각도는 장타자는 굽히고 세우는 타이밍을 잘 맞추는 것으로 나타났다.오른손목각도는 장타자가 언코킹시까지 코킹각도를 잘 유지하였으며, 장타자가 단타자에 비해 클럽의 회전 반경이 큰 것으로 나타났고, 신체중심의 움직임은 장타자가 안정적인 상태 즉 신체의 움직임을 최소화한 자세로 스윙을 하는 것으로 나타났다. 6 subjects participated in this experiment to find out the differences between long-shot golfers while doing golf driver shot. The results are as follows after analyzing weight shift, movements of each body parts, and movements of the clubs.1. The rate of body support to right/lift leg showed great differences by subjects and events(table 2). In case of long-shot golfers, more strength than their body weight was placed on left foot, when impacting, while short-shot golfers placed 60% of their body weight on left foot.2. The degree of right elbow showed great difference by subjects, and did not show any significant difference between long-shot golfers and short-shot golfers.3. As to the degree of knee joint, short-shot golfers had tendency to make the right knee straight at the top. Long-shot golfers had right timing of straightening and bending knee, while short-shot golfers did not.4. As to the degree of right wrist joint, long-shot golfers showed greater differences than short-shot golfers, and kept cocking degree until uncocking.5. The speed of club head showed 28.0 ∼ 41.0m/s of individual difference hen impacting, and the impact was not made for both long-shot golfers and short-shot golfers when the speed of club head was in its best.6. It appeared no difference between long-shot golfers and short-shot golfers for the forward/backward movement distance of the club head, and long-shot golfers had wide left/right movement distance while short-shot golfers had wide up/down movement distance.7. Long-shot golfers had shorter forward/backward, left/right movement distance of the center of body than short-shot golfers, and there was no difference between long-shot golfers and short-shot golfers at the up/down movement distance.This short statement is to give some of the information briefly for better study next time. firstly as amateur golfers are unstable the position for proper golf, they show great variation even in one person`s case, therefore, in the next studies, it is thought to be able to bring out authentic result by analyzing many times of shot for one person.Secondly, in this study, long-shot golfers and short-shot golfers were determined by average distance regardless of handy and carrier. However, it is suggested that handy and carrier also should be considered in next studies as these two factors show significant differences. Thirdly, it will be more effective to compare one or two factors specifically not just comparing various factors at a time might cause trouble because of the confliction results.Therefore, it is suggested to correct one by one.