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RISS 인기검색어
- 검색키워드
- 저자 : 金鍾?(Jong-dal Kim) (검색결과 9 건)
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三次元 映像分析을 利用한 골프 스윙의 動作改善에 관한 硏究
金鍾達,姜鳳漢 龍仁大學校 1992 용인대학교 논문집 Vol.8 No.-
The objective of this dissertation is to investigate three dimensional segment movement in golf swing, Human body is modeled as a three open link system.After two cameras caught the swing motion of 10 skilled and 10 unskilled golfers, three dimensional space co -ordinates are procured from plane co -ordinates by using MDLT method.There dimensional space co -ordinates are calculated using mechanical data.The data is used to analyze the down swing of golf in terms of kinematic and mechanical point of view to conclude as following. Golf down swing was interpreted through three dimensional imageanalysis, it means that most down swings are in concord with the two dimensional interpretation up to 95%, But in the angular movement there is big difference between the stilled and unskilled before impact and direction of club head.This was not discovered in two dimensional analysis.Club head shows difference of 15rad/sec(50%) between the skilled and unskilled to the direction of central axis before impact.It influences the movement of club head.To interpret down swing three segment model is used.By doing so the relationship among upper trunk, arm and hand Joint movement which could not be interpreted in the two dimensional segment was investigated.The skilled showed bigger value of velocity.angular velocity comparing with the unskilled.The earlier value of the angular velocity shows that the unskilled have bigger value than the skilled.The increase is faster to the side of the skilled.The size of angular velocity generated in each segment is bigger to the skilled than the unskilled.But the angular velocity to the wrist is bigger for the unskilled.Accordingly the golf swing is chiefly generated by the wrist. The training of the unskilled through golf down swing must be practiced laying emphases upon the retaining of movement, the enforcement of wrist movement, the revolving to the central axis of club at the moment of impact and trunk, arm and wrist must be on the short moment of the fastest velocity of acceleration.
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社會體育에 있어서 運動處方에 관한 硏究 : 企業體의 體操敎室에 對하여
金鍾達,成東鎭 龍仁大學校 1986 용인대학교 논문집 Vol.2 No.-
The aim of this study is to examine how physical exercise prescription has exerted its training influence on subiects in health and Physical exercise class of a private enterprise, This was done with an analysis of questionaire and physical examination for subjects in class. The result of the questionaire analysis is as follows. 1) Concerning exercise intensity of the subjects their average maximum heart rate was 143 beats/min, and the others recorded 80~100 beats/min, In physical fitness, their vertical jump, side step, and standing flexibility increased significantly (p< 0.01). 2) Results of the physical exercise were as follows. ① "Reduction of feeling for palpitation", "no more feeling for the stiffness of the shoulders, neuralgia, or muscle pain". ② Remarkable dicrease in bad health and the number of consulting doctors.
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最大酸素攝取量에서 본 Step Test 負荷運動時間에 關한 硏究
金鍾達 龍仁大學校 1996 용인대학교 논문집 Vol.12 No.-
The present study was made for the purpose of investigating whether the score of the step test, being widely conducted by the recommendation of the Ministry of Education, would be a significant indicants indicator of cardiovascular endurance or not. Thereby, attention was centered on the duration of stepping exercise, because 3 minute exercise is prescribed in the current test. In this respect, experimental tests were made on 27 boys and 14 girls(12, 13years of age) of a junior secondary school varying the exercise duration from 3minutes to 4, 5 and 6 minutes, and the scores of the tests were compared in relation to the maximum oxygen intake. Results: 1) The average test scores were as follows; 3minute exorcise 4minute exercise 5minute exercise 6minute exercise Boys 63.4±11.57 81.3±13.21 96.3±14.70 106.3±12.61 Girls 64.8±11.444 81.4±12.78 97.3±14.44 107.4±13.09 There was found no significant difference of scores between boys and girls. There was noticed a tendency that the longer the exercise, the higher the score. 2) The average maximum oxygen intake was 2.25±0.42 ℓ/min(53.5 ±3.72mℓ/min/kg) for boys and 1.88±0.330˚/min(42.0±6.30mℓ/min/kg) for girls. The maximum heart rate/min and 5'33" ±27" 8 in girls, respectively. 3) Regarding the heart rate during stepping exercists observed on 4boys and 2girls, it ranged from 150 to 195 beats/min, presenting some individual. Moreover, it reached a steady level after about two minutes exercise in most cases excluding some. Regarding the recover·y of heart rate after the exercise, the recovery was more rapid in cases of 3 or 4 minute exercise than in cases of 5 or 6 minute exercise. 4) Regarding the correlation between the test store and the maximum oxygen intake, the correlation was, in boys, significant at 5% significance level in cases of 5 and 6 minute exercise(r=0.4472, r=0.4481)and insignificant in cases of 3 and 4 minute exercise. In girls, the correlation coefficients were also larger in cases of 5 or 6 minute exercise, although they could not be regarded as significant, probably due to insufficient number of subjects. Regarding the correlation between the maximum oxygen intake and the heart rate determined in 1-1½, 2-2½, and 3-3½ minutes after the exercise, respectively, it was significant at 5% significance level in cases of 5 and 6 minute exercise(except for heart rate in 3-3½minutes after the exercise in case of 5 minute exercise), while if was insignificant in cases of 3 and 4 minute exercise. There was noticed a tendency that the correlation was higher for the heart rate in early stage of recovery. The circumstance, in girls was fairly similar to that in boys, but the correlation could not be regarded as significant in girls even in case of 5 and 6 minute exercise, probably due to insufficient number of examinees. 5) Regarding the correlation between the endurance running record and the maximum oxygen intake, boys showed a significant converse correlation in cases of 800m as well as 1500m runnings(r=-0.6403, r=-0.6476) although girls showed no significant correlation in cases of 600m and 1000m runnings. 6) The above-mentioned results led the author to the conclusion that in case of the step test aiming at obtaining an indicator of cardiovascular endurance, the duration of exercise should be not less than 5 minutes. Three minutes in the current test seem to be insufficient. Besides, it seems to be recommendable to use the heart rate in more early stage of recovery than 1 minute after the exercise in calculation of the test score.
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急性一酸化炭素中毒 및 中毒致死時 白鼠 의 各組織酸素消耗量變化成績
金鍾錫,沈達燮,金洪祚 서울大學校保建大學院 1965 公衆保健雜誌 Vol.2 No.1
This study was attempted to observe the changes of the oxygen consumption in the liver & brain tissue of the rat exposed to carbon-monoxide environment until severe poisoning. findings obtained are as follow 1) In acute carbon-monoxide poisoning. tissue oxygen consumption of the liver & brain of rats were markcdly decreased. 2) In the Deceased group by severe carbon-monoxide poisoning, there were no changes in the tissue oxygen consumption rate compared with the control group.
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最大 酸素攝取量에서 본 Step Test 負荷 運動時間에 關한 硏究
金鍾達 龍仁大學校 1985 용인대학교 논문집 Vol.1 No.-
The present study was made for the purpose of investigating whether the score of the step test, being widely conducted by the recommendation of the Ministry of Education, would be a significant indicant indicator of cardiovascular endurance or not. Thereby, attention was centered on the duration of stepping exercise, because 3 minute exercise is prescribed in the current test. In this respect, experimental tests were made on 27 boys and 14 girls (12, 13 years of age) of a junior secondary school varying the exercise duration from 3 minutes to 4,5 and 6 minutes, and the scores of the tests were compared in relation to the maximum oxygen intake Results: 1) The average test scores were as follows; 3minute exercise 4 minute exercise 5 minute exercise 6 minute exercise Boys 63.4±11.57 81.3±13.21 96.3±14.70 106.3±12.61 Girls 64.8±11.444 81.4±12.78 97.3±14.44 107.4±13.09 There was found no significant difference of scores between boys and girls. There was noticed a tendency that the longer the exercise, the higher the score. 2) The average maximum oxygen intake was 2.25±0.420ℓ/min (53.5±3.72 mℓ/min/kg) for boys and 1.88 ± 0.330˚/min (42.0±6.30mℓ/min/kg) for girls. The maximum heart rate/min and 5'33"± 27" 8 in girls, respectively. 3) Regarding the heart rate during stepping exercise observed on 4 boys and 2 girls, it ranged from 150 to 195 beats/min, presenting some individual. Moreover, it reached a steady level after about two minutes exercise in most cases excluding some. Regarding the recovery of heart rate after the exercise, the recovery was more rapid in cases of 3 or 4 minute exercise than in cases of 5 or 6 minute exercise. 4) Regarding the correlttion between the test store and the maximum oxygen intake, the correlation was, in boys, significant at 5% significance level in cases of 5 and 6 minute exercise (r = 0.4472, r = 0.4481) and insignificant in cases of 3 and 4 minute exercise. In girls, the correlation coefficients were also larger in cases of 5 and 6 minute exercise, although they could not be regarded as significant, probably due to insufficient number of subjects. Regarding the correlation between the maximum oxygen intake and the heart rate determined in 1-11/2, 2-21/2 and 3-31/2 minutes after the exercise, respectively, it was significant at 5% significance level in cases of 5 and 6 minute exercise (except for heart rate in 3-31/2 minutes after the exercise in case of 5 minute exercise), while if was insignificant in cases of 3 and 4 minute exercise. There was noticed a tendency that the correlation was higher for the heart rate in early stage of recovery. The circumstance, in girls was fairly similar to that in boys, but the correlation could not be regarded as significant in girls even in case of 5 and 6 minute exercise, probably due to insufficient number of examinees. 5) Regarding the correlation between the endurance running record and the maximum oxygen intake, boys showed a significant converse correlation in cases of 800 m as well as 1500 m runnings (r = -0.6403, r = -0.6476) although girls showed no significant correlation in cases of 600 m and 1000 m runnings. 6) The above-mentioned results led the author to the conclusion that in case of the step test aiming at obtaining an indicator of cardiovascular endurance, the duration of exercise should be not less than 5 minutes. Three minutes in the current test seem to be insufficient. Besides, it seems to be recommendable to use the heart rate in more early stage of recovery than 1 minute after the exercise in calculation of the test score.
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