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한국과 C.I.S 우수 레슬링 선수들의 엉치걸이 동작에 대한 운동학적 요인 분석
윤희중,전해섭,김동건,김영란 韓國體育大學校附屬 體育科學硏究所 1992 韓國體育大學校附屬 體育科學硏究所論文集 Vol.11 No.1
This study investigated kinemtic factors of hip throw as a representative skill to make a comparative study between Korean and C. I. S wrestlers Four elite wrestlers were filmed using high - speed cinematography. Kinematic data for the each phase were derived from the digitized film. Analyzing variables included center of gravity(CG) displacement and velocity, hip joint, angular displacement and angular velocity The results were as followers ; 1. Elapse time of CG at conducting hip throw were showed similar result between two nations. 2. C. I. S wrestlers showed more displacement than Korean wrestlers in the harizontal phase (P<0.001) but, Korean wrestlers showed large movemnet, in the vertical phase(P <0.001). 3. In average velocity at whole phase, Korean wrestlers showed rapid velocity in the vertical phase(P<0.001) but, C. I. S wrestlers at conducting throw partner down showed rapid velocity in the horizontal phase(P<0.05). 4. C. I. S wrestlers showed large angular displacement in the hip joint at Ph. I. (P <0.001). 5. C. I. S wrestlers showed rapid angular velocity in the hip joint at Ph. I (P<0.001).
Rings운동에서의 Giant swing동작에 대한 운동학적 분석
윤희중,박종훈,한충식,김영란,김충태 韓國體育大學校附屬 體育科學硏究所 1992 韓國體育大學校附屬 體育科學硏究所論文集 Vol.11 No.1
This study was to investogate the kinematic patterns of the giant. swing on rings by 3 male gymnastic. The motion was filmed at 60frame/sec high video camera. The result was as follows ; 1. Subj. C showed a large displacement in the wrist J. at phase I and Subj. B showed a large displacement at phase 2, 3, 4. 2. Subj. C showed a large displacement in the hip J. at down swig phase and Subj.B, C showed a large displacement. at upward swing phase. 3. Subj. A showed a large velocity a in the hip J. at phase 1 and Subi. C shooed a large velocity at phase 2, 3, 4. 4. Subj. C showed a large velicity in the shoulder J. at whole phase. 5. Subj. C showed a large angular velocity in the hip J. at down swing phase and subj. B showed a large angular velocity at upward swing phase. 6. Subj. B showed a larege angular velocity in the shoulder J. at. phase 1, and Subj. C showed a large angular velocity at phase 2, 4 also subj. A showed a large angular velocity at phase 3.
女子 跳馬運動에서 Yurtchenko動作의 力學的 分析
金東敏,尹喜重,金英蘭 韓國體育大學校附屬 體育科學硏究所 1990 韓國體育大學校附屬 體育科學硏究所論文集 Vol.9 No.1
This study was carried out to analysis Yurtchenko motion in a view of kinemetic method with 3 national female gymnast. The purpose of this study was giving basical information to improve performance for coach and athletes. We used 16mm High Speed Camera (100frame/sec) and analysis program(KSNU3D) for this study. The result was as follows: 1. Phase time and valuting time (second) 1) In BC phase, among the subject of this study, subject C emerged shortest with 0.060sec., and it emerged that the subject of this study were doing short BC in comparison with 0.157 sec. of Seoul Olympic players and 0.150 sec. of Nelson. 2) In Pre. F phase, it emerged that subject C spent longest with 0.180 sec. 3) In HC phase, the subject of this study and Seoul Olympic players emerged similar. 4) In Po.F phase, the subject of this study emerged identically with 0.820 se. and it emerged that they spent long Po.F phase by 0.764 sec. of Seoul Olympic players and 0.780 sec. of Nelson study. 5) In the time required for vaulting, the subject of this study and Seoul Olympic players and Nelson study emerged similar. 2. COG displacement during post-flight (meters) 1) In the forizontal displacement , subject C emerged shortest with 1.79m, in comparison with 1.98 sec of Seoul Olympic players and 2.10m of Nelson. 2) In the Subphase 1 of vertical displacement , subject C emerged shortest with 0.18m, in comparison with 1.90m of Seoul Olympic players. 3) It emerged that subphase 2 was landing in the position that COG ea lower, since subject C emerged with -1.70m, in comparison with -1.46m of Seoul Olympic players. 3. Horizontal and vertical velocities of body COG at events (m/s) 1) As for the horizontal velocities of BC phase, it emerged that subject C was doing slowest BT, with 3.92m/s, in comparison with 5.03m/s of Seoul olympic players and 5.33㎧ fo study of Nelson. 2) In BTO/HT phase, it emerged that subject B was doing slowest BTO/HT with 3.11m/s, in comparison with 3.71m/s of Seoul Olympic players and 3.98m/s of Nelson. 3) In HTO/LD phase, subject B emerged fastest with 2.17m/s among the subject of this study, but it emerged slowest in comparison with 2.79m/s and 3.00m/s of Nelson. 4) As for the vertical velocities of Bt phase, it emerged that subject B was doing fastest Bt with -1.54m/s, in comparison with -0.17m/s of Seoul Olympic players and -0.23m/s of Nelson. 5) In BTO phase, it emerged that subject C was doing slowest BTO with 2.75m/s, in comparison with 3.45m/s of Seoul Olympic players and Nelson. 6) In HT phase, subject B emerged with 2.16m/s, in comparison with 2.55m/s of Seoul Olympic players, so it emerged that it was doing slowest HT, and it emerged that subject A was doing fastest HT, and it emerged that subject A was doing fastest HT with 2.62m/s. 7) It emerged that subject A was doing fastest HTO with 2.16m/s, among the subject of jthis study, but it emerged that the subject of this study was slow in comparison with 2.53m/s of Nelson. 8) In LD phase, subject A emerged fastest with -3.31m/s, but it emerged that the subject of this study were landing in the position that the COG was lower, in comparison with -5.34m/s of Seoul Olympic players. 4. Velocity change during contact (m/s) 1) As for horizontal velocity in the BC phase, subject B emerged fastest with -0.70m/s, among the subject of this study, butthe subject of this study emerged slowest, in comparison with -1.32m/s of Seoul Olympic players. 2) As for the horizontal velocity in HC phase, it emerged that subject A was doing fastest HT -1.03m/s, in comparison with -0.88m/s of Seoul Olympic players. 3) As for the vertical velocity in BC phase, subject A emerged fastest with 2.27m/s, among the subject of this study, but it emerged that the subject of this study was doing slow BC, in comparison with 3.62m/s of Seoul Olympic players. 4) As for the vertical velocity in phase, subject A emerged fastest with -0.46m/s among the subject of this study, but it ememerged that the subject of this study were doing slow HC, in comparison with -0.53m/s of Seoul Olympic players. 5. Angle of body COG at phase 1) As for the angle by COG in BC phase, subject A emerged largest with 61??, among 3 subject. 2) In Pre.F phase, subject C emerged largest with 52??, among 3 subject. 3) In HC phase, subject B emerged largest with 51??, among 3 subject. 4) In Pos.F phase, subject B emerged smallest, among 3 subject.
김영란,윤희중,이연종 韓國體育大學校附屬 體育科學硏究所 1993 韓國體育大學校附屬 體育科學硏究所論文集 Vol.12 No.1
The Purpose of this study was to describe. the biomecanical factors on forward somersault on floor exercise. Five highly-skilled male collegiate gymnasts were filmed on a high speed video camera form the start to the landing. Also experimental set-up consisted of a force plateform interfaced to a laboratory computer. The results of this study could be summarized as follows. l. It showed that vertical ground reaction force patterns, including only single peak point, indicated that the subjects did not contact the force platform with heel of both feet but rather contacted on the mid hall of feet. 2. It showed that anteroposterior ground reaction force were charecterized a braking force posteriorly directed during the most of support phase and a propelling force anteriorly directed the last short period of support phase. 3. It showed that the wave forms of the mediolateral ground reaction force curve indicated a little changes. 4. It Showed that the support time of both feet on the force platform took 0.127 sec, but lack the velocity transfer ability from horizontal velocity at run-up to vertical velocity at take-off.
Prevalence of Salmonella Isolates and Antimicrobial Resistance in Poultry Meat from South Korea
YOON, RAN-HEE,CHA, SE-YEOUN,WEI, BAI,ROH, JAE-HEE,SEO, HYE-SUK,OH, JAE-YOUNG,JANG, HYUNG-KWAN International Association for Food Protection 2014 Journal of food protection Vol.77 No.9
<P>Contamination of Salmonella was assessed in duck and chicken meat collected from supermarkets, traditional markets, internet shopping malls, and wholesale markets in Jeonlado, South Korea, in 2013. Salmonella contamination was found in 51.3% of duck meat samples and 3.7% of chicken meat samples. Salmonella contamination of duck meat samples differed by meat type, i.e., 69.8% of samples of whole ducks and 33.9% of samples of duck pieces. Six serotypes were identified from 64 Salmonella isolates in duck meat: Salmonella Typhimurium (37.5%), Salmonella Enteritidis (21.8%), Salmonella Stanley (3.1%), Salmonella Regent (1.6%), Salmonella Winterthur (3.1%), and Salmonella Westhampton (1.6%). All isolates were resistant to one or more antibiotics. Resistance to sulfisoxazole was most common (93.8% of isolates), followed by resistance to nalidixic acid (59.4%), ceftazidime (26.6%), and ampicillin (26.6%). To our knowledge, this study is the first to report Salmonella contamination in duck meat from Korea. Duck meat should be considered an important source of foodborne pathogens.</P>
Yoon, Se-Hee,Cho, Jang-Hee,Kwon, Owen,Choi, Ji-Young,Park, Sun-Hee,Kim, Yong-Lim,Yoon, Young-Ran,Won, Dong-Il,Kim, Chan-Duck Lippincott Williams Wilkins, Inc. 2013 Transplantation Vol.95 No.6
BACKGROUND: We prospectively studied renal transplant recipients receiving tacrolimus to determine the relationship between the CYP3A4, CYP3A5, and ABCB1 genetic polymorphisms and the pharmacokinetics (PK) and pharmacodynamics (PD) of tacrolimus and its metabolites. METHODS: Renal transplant recipients receiving tacrolimus were genotyped for CYP3A4*4, CYP3A4*5, CYP3A4*18, CYP3A5*3, ABCB1 c.1236C→T, ABCB1 c.2677G→A/T, and ABCB1 c.3435C→T. Dose-adjusted trough concentration (C0) of tacrolimus and its metabolites (M-I and M-III) and PK and PD (T-cell and monocyte subsets) were determined on transplantation days –2, 5, 30, and 90 and correlated with the corresponding genotypes. RESULTS: The dose-adjusted C0 of tacrolimus and its metabolites and AUC0–12 were significantly higher and the mean fluorescence intensity (MFI) of HLA/DR in monocytes was significantly lower in patients with CYP3A5*3/*3 than in patients with CYP3A5*1/*1 or CYP3A5*1/*3. However, there was no significant difference in the dose-adjusted C0 of tacrolimus and its metabolites, PK and PD among the ABCB1 genotypes. The MFI of HLA/DR in monocytes showed a significant negative correlation with dose-adjusted C0 of tacrolimus and its metabolites and AUC0–12. In a multiple regression analysis, the presence of the CYP3A5*3/*3 genotype was a significant independent variable determining the dose-adjusted C0 of tacrolimus and its metabolites, AUC0–12, and the MFI of HLA/DR in monocytes. CONCLUSIONS: This study demonstrates that the CYP3A5 genetic polymorphisms are associated with the individual differences in PK and PD as well as in C0 of tacrolimus and its metabolites. The MFI of HLA/DR in monocytes might be considered to be a significant tool for monitoring tacrolimus efficacy.